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TABLE OF CONTENTS

Table of Contents

As filed with the Securities and Exchange Commission on June 29, 2006July 27, 2011

Registration No. 333-               

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DCD.C. 20549


FORM S-3


REGISTRATION STATEMENT
Under

FORM S-3
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933




AXT, INC.

(Exact name of Registrant as specified in its charter)

Delaware

94-3031310

Delaware
(State or other jurisdiction of

(I.R.S. Employer


incorporation or organization)

94-3031310
(I.R.S. Employer
Identification No.)

Number)

4281 Technology Drive


Fremont, California 94538


(510) 683-5900


(Address, including zip code, and telephone number, including area code, of Registrant’sRegistrant's principal executive offices)

Philip C.S. YinRaymond A. Low
Chief ExecutiveFinancial Officer
AXT, INC.Inc.
4281 Technology Drive


Fremont, California 94538


(510) 683-5900


(Name, address, including zip code, and telephone number, including area code, of agent for service)


Copies to:
Donna M. Petkanics, Esq.
Glenn J. Luinenburg, Esq.
Wilson Sonsini Goodrich & Rosati, P.C.
650 Page Mill Road
Palo Alto, CA 94304
Telephone: (650) 493-9300
Facsimile: (650) 493-6811

WILSON W. CHEUNG

SALLY J. RAU, ESQ.

Chief Financial Officer and Corporate Secretary

DLA Piper Rudnick Gray Cary US LLP

AXT, Inc.

2000 University Avenue

4281 Technology Drive

East Palo Alto, CA 94303-2248

Fremont, California 94538

(650) 833-2000

(510) 683-5900


Approximate date of commencement of proposed sale to the public:
From time to time, after the effective date of this registration statement.Registration Statement.


If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box: box.  o

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box: box.  ýx

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o

If this formForm is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box.  o

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.  o

           Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer oAccelerated filer ýNon-accelerated filer o
(Do not check if a smaller reporting company)
Smaller reporting company o

CALCULATION OF REGISTRATION FEE

Title of Each Class of
Securities to be Registered

 

Amount to be Registered(1)

 

Proposed Maximum Aggregate Offering Price (1)

 

Amount of Registration Fee(2)

 

Common Stock, $0.001 par value

 

$

25,000,000

 

$

25,000,000

 

$

2,675.00

 

 
Title of Each Class of Securities to be Registered
 Amount To Be
Registered(1)

 Proposed Maximum
Offering Price per Unit
or Share(1)(2)

 Proposed Maximum
Aggregate Offering
Price(2)(3)

 Amount of
Registration Fee(3)

 
Common Stock, $0.001 par value per share(4)        
 
Preferred Stock, $0.001 par value per share(4)    
 
Depositary Shares    
 
Warrants    
 
Debt Securities    
 
Units    
 
 Total(5) $60,000,000  $60,000,000 $6,966.00
 
(1)
Pursuant to Rule 457(i) under the Securities Act of 1933 (the "Securities Act"), the securities registered hereunder include such indeterminate number of shares of common stock, preferred stock or depositary shares, number of warrants and principal amount of debt securities as units as may be issued upon conversion or exchange of any preferred stock, warrants or debt securities registered hereunder that provide for conversion or exchange, upon exercise of warrants or pursuant to the anti-dilution provisions of any such securities.

(2)
The proposed maximum per unit and aggregate offering prices per class of securities will be determined from time to time by the registrant in connection with the issuance by the registrant of the securities registered under this registration statement and is not specified as to each class of security pursuant to General Instruction II.D of Form S-3 under the Securities Act.

(3)
Calculated pursuant to Rule 457(o) under the Securities Act.

(4)
Includes an indeterminate number of shares of common stock or preferred stock as may be sold from time to time at indeterminate prices.

(5)
Any securities registered hereunder may be sold separately or as units with other securities registered hereunder. The proposed maximum offering price per unit will be determined by us in connection with the issuance of the securities. In no event will the aggregate offering price of all securities issued from time to time pursuant to this Registration Statement exceed $60,000,000 or the equivalent thereof in one or more foreign currencies, foreign currency units or composite currencies.

           

(1)

Pursuant to Rule 416 of the Securities Act of 1933, as amended, (the “Securities Act”) this registration statement also registers such additional shares of common stock of the registrant as may hereafter effected without the receipt of consideration which results in an increase in the number of outstanding shares of registrant's common stock be offered or issued in connection with the securities registered for sale hereby by reason of any stock splits, stock dividends, recapitalizations or other capital adjustments.

(2)

Calculated pursuant to Rule 457(o) of the Securities Act of 1933.


The registrantRegistrant hereby amends this registration statementRegistration Statement on such date or dates as may be necessary to delay its effective date until the registrantRegistrant shall file a further amendment which specifically states that this registration statementRegistration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statementthis Registration Statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.




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The information in this preliminary prospectus is not complete and may be changed. We may not sell thesethe securities until the registration statementRegistration Statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell these securities and is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED JUNE 29, 2006JULY 27, 2011

PROSPECTUS

PRELIMINARY PROSPECTUS

GRAPHIC

$25,000,000

60,000,000

AXT, Inc.

By this prospectus, AXT INC.

COMMON STOCKmay offer, from time to time:


•  Common stock
•  Preferred stock
•  Depositary Shares
•  Warrants
•  Debt securities
•  Units

        

WeAXT, Inc. a Delaware corporation ("AXT") may offer and sell shares of our common stock from time to time, underin one or more series or issuances and on terms that AXT will determine at the time of the offering, any combination of the securities described in this prospectus, up to an aggregate offering priceamount of $25,000,000. We will describe in a prospectus supplement the specific terms of each such offering.$60,000,000.

We may offer these securities in amounts, at prices and on terms determined at the time of the offering.        We will provide specific terms of thisany offering in supplementsa supplement to this prospectus. WeAny prospectus supplement may sell the securities directly to you, through agents we select,also add, update, or through underwriters and dealers we select. If we use agents, underwriters or dealers to sell the securities, we will name them and describe their compensation in a prospectus supplement.  For additionalchange information on the methods of sale, you should refer to the section entitled “Plan of Distribution”contained in this prospectus. The price to the public of such securities and the net proceeds we expect to receive from such sale will be set forth in a prospectus supplement.

You should carefully read this prospectus and the informationapplicable prospectus supplement as well as the documents incorporated or deemed to be incorporated by reference in this prospectus before you purchase any of the securities offered hereby.

        These securities may be offered and sold in the same offering or in separate offerings; to or through underwriters, dealers, and agents; or directly to purchasers. The names of any underwriters, dealers, or agents involved in the sale of our securities, their compensation and any over-allotment options held by them will be described in the applicable prospectus supplement carefully before you invest.supplement. For a more complete description of the plan of distribution of these securities, see the section entitled "Plan of Distribution" beginning on page 29 of this prospectus.

        

Our common stock tradesis listed on the Nasdaq NationalGlobal Select Market under the symbol “AXTI.” On June 28, 2006, the closing price for"AXTI." We will provide information in any applicable prospectus supplement regarding any listing of securities other than shares of our common stock as reported on the Nasdaq National Market, was $3.07 per share.any securities exchange.



        


INVESTING IN OUR SECURITIES INVOLVES SIGNIFICANT RISKS. SEE THE SECTION ENTITLED “RISK FACTORS” CONTAINED IN OUR MOST RECENT ANNUAL REPORT"RISK FACTORS" BEGINNING ON FORM 10-KPAGE 6 OF THIS PROSPECTUS AND QUARTERLY REPORT ON FORM 10-Q, AS WELL AS ANY AMENDMENTS THERETO, FILED WITH THE SECURITIES AND EXCHANGE COMMISSION.  SEE ALSO THE SECTION TITLED “RISK FACTORS” TO BE INCLUDED IN THE APPLICABLE PROSPECTUS SUPPLEMENT BEFORE INVESTING IN OUR PERIODIC REPORTS INCORPORATED INTO THIS PROSPECTUS BY REFERENCE.ANY SECURITIES.


THIS PROSPECTUS MAY NOT BE USED TO OFFER OR SELL ANY SECURITIES UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IFPASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS IS TRUTHFUL OR COMPLETE.PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.


The date of this prospectus is                        , 2006.2011




Table of Contents


TABLE OF CONTENTS


Page

Prospectus Summary

Page

3

Risk Factors


6

About this ProspectusForward-Looking Statements

1


6

SummaryRatio of Earnings to Fixed Charges

2


7

Risk Factors

3

Disclosure Regarding Forward-Looking Statements

3

Use of Proceeds

3


7

Dividend PolicyDescription of Capital Stock

3


8

Description of Securitiesthe Depositary Shares

4


12

Description of the Warrants


15

Description of the Debt Securities


17

Description of the Units


28

Plan of Distribution

6


29

Legal Matters

7


32

Experts

7


32

Incorporation of Certain Information by Reference

7

Where You Can Find More Information


32

8Information Incorporated by Reference


33

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ABOUT THIS PROSPECTUS

Overview

This prospectus is part of a registration statement on Form S-3 that we filed with the United States Securities and Exchange Commission, (“SEC”) utilizingor the SEC, using a shelf"shelf" registration process. Under thethis shelf registration process, we may, offer shares of our common stock with a total value of up to $25,000,000 from time to time, undersell any combination of the securities described in this prospectus at prices and on termsin one or more offerings up to be determined by market conditions at the timea total amount of offering.$60,000,000.

This prospectus provides you with a general description of the common stocksecurities we may offer. Each time we offer our common stock pursuant to this prospectus,sell securities, we will provide a prospectus supplement containingthat will contain specific information about the terms of that offering. AThe prospectus supplement may also add to, update or change information contained in this prospectus. If there is any inconsistency between the prospectus and, accordingly, to the extent inconsistent, information in this prospectus and the applicable prospectus supplement, you must rely onis superseded by the information in the prospectus supplement. Please carefully read both

        The prospectus supplement to be attached to the front of this prospectus may describe, as applicable: the terms of the securities offered; the initial public offering price; the price paid for the securities; net proceeds; and the other specific terms related to the offering of the securities.

        You should only rely on the information contained or incorporated by reference in this prospectus and the applicableany prospectus supplement together with additional information described under the heading “Incorporation of Certain Information by Reference.” Thisor issuer free writing prospectus may not be usedrelating to offer or sell any securities unless accompanied by a prospectus supplement.

The registration statement containing this prospectus, including exhibits to the registration statement, provides additional information about us and the common stock offered under this prospectus. The registration statement can be read at the SEC website or at the SEC’s public reading room referred to under the heading “Where You Can Find More Information.”

We have notparticular offering. No person has been authorized any broker-dealer, salesperson or other person to give any information or to make any representationrepresentations in connection with this offering other than those contained or incorporated by reference in this prospectus, any accompanying prospectus supplement and any related issuer free writing prospectus in connection with the accompanying supplement to this prospectus. Youoffering described herein and therein, and, if given or made, such information or representations must not relybe relied upon any information or representation not contained or incorporatedas having been authorized by reference inus. Neither this prospectus or the accompanyingnor any prospectus supplement. Thissupplement nor any related issuer free writing prospectus and the accompanying supplement to this prospectus do notshall constitute an offer to sell or thea solicitation of an offer to buy our common stock, nor do this prospectus and the accompanying supplement to this prospectus constitute an offer to sell or the solicitation of an offer to buy our common stockoffered securities in any jurisdiction to any person to whomin which it is unlawful for such person to make such offeran offering or solicitation. TheThis prospectus does not contain all of the information included in the registration statement. For a more complete understanding of the offering of the securities, you should refer to the registration statement, including its exhibits.

        You should read the entire prospectus and any prospectus supplement and any related issuer free writing prospectus, as well as the documents incorporated by reference into this prospectus or any prospectus supplement or any related issuer free writing prospectus, before making an investment decision. Neither the delivery of this prospectus or any prospectus supplement or any issuer free writing prospectus nor any sale made hereunder shall under any circumstances imply that the information contained or incorporated by reference herein or in any prospectus supplement or issuer free writing prospectus is correct as of any date subsequent to the date hereof or of such prospectus supplement or issuer free writing prospectus, as applicable. You should assume that the information appearing in this prospectus, and any accompanying prospectus supplement speaksor any document incorporated by reference is accurate only as of the date set forth onof the cover page and may not reflect subsequent changes in ourapplicable documents, regardless of the time of delivery of this prospectus or any sale of securities. Our business, financial condition, results of operations and prospects even though this prospectus and any accompanying prospectus supplement is delivered or common stock is sold on a latermay have changed since that date.


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THIS PROSPECTUS MAY NOT BE USED TO OFFER OR SELL ANY SECURITIES UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.SUMMARY

        

1



SUMMARY

Prospectus Summary

This summary description about us and our business highlights selected information fromcontained elsewhere in this prospectus andor incorporated in this prospectus by reference. This summary does not contain all of the information that you need toshould consider before buying securities in making your investment decision.this offering. You should carefully read thethis entire prospectus and any applicable prospectus supplement, including each of the risks of investing discussed under “Risk Factors” beginning on page 3, the informationdocuments incorporated herein or therein by reference, including our consolidated financial statements, and the exhibits to the registration statement of whichbefore making an investment decision. As used in this prospectus, is a part.

Throughout this prospectus, references to “AXT,” the “Company,” “we,” “us,”"we," "us," "AXT" and “our”"our" refer to AXT, Inc., a Delaware corporation.


AXT, Inc.

Overview

        AXT is a leading developer and its consolidated subsidiaries, where applicable.

AXT, INC.

We design, develop, manufacture and distributeproducer of high-performance compound and single element semiconductor substrates, comprisingincluding substrates made from gallium arsenide (GaAs), indium phosphide (InP) and germanium (Ge). OurWe make semi-insulating GaAs substrates used in applications such as amplifiers and switches for wireless devices, and semi-conducting GaAs substrates used to create opto-electronic products including HBLEDs, which are often used to backlight wireless handsets and LCD TVs and for automotive, signage, display and lighting applications. InP is a high-performance semiconductor substrate products are used primarily in lighting display applications, wireless communications,broadband and fiber optic communications.applications. Ge substrates are used in emerging applications such as triple junction solar cells for space and terrestrial photovoltaic applications and for optical applications. We believecurrently sell the following substrate products in the sizes and for the applications indicated:

Substrates
Substrate DiameterApplications
GaAs (semi-insulating)2", 3", 4", 5", 6"Power amplifiers and radio frequency integrated circuits for wireless handsets (cell phones)







Direct broadcast television







High-performance transistors







Satellite communications

GaAs (semi-conducting)


2", 3", 4"




High brightness light emitting diodes







Lasers







Optical couplers

InP


2", 3", 4"




Broadband and fiber optic communications

Ge


2", 4"




Satellite and terrestrial solar cells







Optical applications

        We manufacture all of our semiconductor substrates using our proprietary vertical gradient freeze or VGF, technique for manufacturing semiconductor substrates provides significant benefits over other methods and has enabled us to become a leading manufacturer(VGF) technology. Most of suchour revenue is from sales of GaAs substrates. We pioneered the commercial use of VGF technology to manufacture GaAs substrates and subsequently used VGF technology to manufacture substrates from InP and Ge. Someall of our competitors followed our lead by developing their own versionsproducts in the People's Republic of VGF technology. CustomersChina (PRC or China), which generally has favorable costs for our substrates includefacilities and labor compared with comparable facilities in the United Epitaxy Company, Avago, Samsung, EMCORE, Kopin, IQE, Osram, MBE Technologies, and Sumika. Over the past four years, we have implemented an initiative to reduce the cost of manufacturing our substrates by moving our manufacturing operations to China, which is now complete, and by investing in sources of low cost raw materials.

States, Europe or Japan. We also manufacture and sell raw materials related to our substrate business throughhave five joint ventures located in China. TheseChina that provide us pricing advantages, reliable supply and shorter lead-times for raw materials central to our final manufactured products. We consolidate, for accounting purposes, three of these joint ventures produce products including 99.99% pure gallium (4N Ga)and have equity interests of 25% in each of the other two. We use our direct sales force in the United States and independent sales representatives in Europe and Asia to market our substrates. Our ten largest customers for 2010 were: Avago Technologies Trading Ltd., high purity gallium, arsenic, germanium, germanium dioxide, paralytic boron nitride (pBN) crucibles,AZUR Space Solar Power GmbH, Beijing China Crystal Technology, Ltd., Hitachi Cable, Ltd., the IQE group, Nan Da Guang Dang, Osram Opto Semiconductors GmbH,


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Sumika Electronic Materials, Inc, Sumitomo Chemical Co., Ltd. and boron oxide. AXT’s ownership interest in these entities ranges from 25 percentVisual Photonics Epitaxy Co. As the demand for compound semiconductor substrates is expected to 83 percent. We consolidate the three joint ventures in whichincrease, we own a majority interestbelieve that we are well-positioned to leverage our PRC-based manufacturing capabilities and employ equity accounting for the two joint ventures in which we have a 25 percent interest. We purchase theaccess to favorably priced raw materials produced by these ventures forto increase our use and sell other portions of their production to third parties.

In 2005, we made a number of important changes to our management team. Philip C.S. Yin, Ph.D., joined the Company in March 2005 as chief executive officer.  In June 2005, two new positions were created: chief operating officer and chief technology officer.  The former president of AXT’s China operations became president of joint venture operations. In September 2005, our new vice president of global sales and marketing joined the Company. This new structure enables us to maximize the expertise and skill sets of our team while placing enhanced emphasis on manufacturing, production and quality, and quality systems improvement.market share.

We wereCorporate Information

        AXT was incorporated in the State of California in December 1986 and reincorporated in the State of Delaware in May 1998. We changed our name from American Xtal Technology, Inc. to AXT, Inc. in July 2000. Our corporate office isprincipal executive offices are located at 4281 Technology Drive, Fremont, California 94538 and ourthe telephone number at this address is (510) 683-5900. We maintain a website at www.axt.com where general information about us is available. Our web site is www.axt.com; however,website, and the information on our web site doescontained therein, is not constitute a part of this prospectus.

The Securities We May Offer

        We may offer up to $60,000,000 of common stock, preferred stock, depositary shares, warrants, debt securities and/or units in one or more offerings and in any combination. This prospectus provides you with a general description of the securities we may offer. A prospectus supplement, which we will provide each time we offer securities, will describe the specific amounts, prices and terms of the securities we determine to offer.

    Common Stock

        We may offer shares of our common stock, par value $0.001 per share, either alone or underlying other registered securities convertible or exercisable into our common stock. Each holder of our common stock is not incorporated herein. We makeentitled to one vote for each share on all matters to be voted upon by the stockholders. Holders of our common stock are entitled to receive ratably the dividends, if any, as may be declared from time to time by our board of directors out of funds legally available freetherefor. If there is a liquidation, dissolution or winding up of charge, on or through our web site,company, holders of our annual, quarterly and current reports,common stock would be entitled to share in our assets remaining after the payment of liabilities and any amendmentspreferential rights of any outstanding preferred stock. The holders of common stock have no preemptive rights. Currently, we do not pay a dividend and do not anticipate paying cash dividends in the foreseeable future.

    Preferred Stock and Depositary Shares

        Under the terms of our amended and restated certificate of incorporation, our board of directors is authorized to those reports.

AXT is a registered trademarkissue shares of AXT, Inc. This prospectus contains product names, trade namespreferred stock in one or more series without stockholder approval. Our board of directors has the discretion to determine the rights, preferences, privileges and trademarksrestrictions, including voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of AXT and other organizations.each series of preferred stock.

        

2



RISK FACTORSWe may also issue fractional shares of preferred stock that will be represented by depositary shares and depositary receipts.

        Each series of preferred stock, depositary shares or depositary receipts, if issued, will be more fully described in the particular prospectus supplement that will accompany this prospectus, including redemption provisions, rights in the event of our liquidation, dissolution or winding up, voting rights and rights to convert into common stock. We have no present plans to issue any additional shares of preferred stock, depositary shares or depositary receipts nor are any depositary shares or depositary receipts presently outstanding. As discussed below, as of April 29, 2011, there were 883,000 shares of our series A preferred stock issued and outstanding.


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    Warrants

        We may issue warrants for the historical information containedpurchase of common stock, preferred stock or debt securities. We may issue warrants independently or together with other securities.

    Debt Securities

        We may offer secured or unsecured obligations in the form of one or more series of senior or subordinated debt. The senior debt securities and the subordinated debt securities are together referred to in this prospectus as the "debt securities." The subordinated debt securities generally will be entitled to payment only after payment of our senior debt. Senior debt generally includes all debt for money borrowed by us, except debt that is stated in the instrument governing the terms of that debt to be not senior to, or to have the same rank in right of payment as, or to be expressly junior to, the subordinated debt securities. We may issue debt securities that are convertible into shares of our common stock.

        The senior and subordinated debt securities will be issued under separate indentures between us and a trustee. We have summarized the general features of the debt securities to be governed by the indentures. These indentures have been filed as exhibits to the registration statement of which this prospectus forms a part. We encourage you to read these indentures. Instructions on how you can get copies of these documents are provided under the heading "Where You Can Find More Information."

    Units

        We may issue units comprised of one or more of the other classes of securities issued by us as described in this prospectus in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit.


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RISK FACTORS

        An investment in our securities involves a high degree of risk. The prospectus supplement applicable to each offering of our securities will contain a discussion of the risks applicable to an investment in our securities. Prior to making a decision about investing in our securities, you should carefully consider the specific factors discussed under the heading "Risk Factors" in the applicable prospectus supplement, together with all of the other information contained or incorporated by reference in the prospectus supplement or appearing or incorporated by reference in this prospectus. You should also consider the risks, uncertainties and assumptions discussed under Item 1A, "Risk Factors," in our Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and any updates described in our Quarterly Reports on Form 10-Q, all of which are incorporated herein by reference, and may be amended, supplemented or superseded from time to time by other reports we file with the SEC in the future and any prospectus (andsupplement related to a particular offering. The risks and uncertainties we have described are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our operations. The occurrence of any of these known or unknown risks might cause you to lose all or part of your investment in the offered securities.


FORWARD-LOOKING STATEMENTS

        This prospectus, each prospectus supplement and the information incorporated by reference in this prospectus) containsprospectus and each prospectus supplement contain certain statements that constitute "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. The words "anticipate," "expect," "believe," "goal," "plan," "intend," "estimate," "may," "will," and similar expressions and variations thereof are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. Those statements appear in this prospectus, any accompanying prospectus supplement and the documents incorporated herein and therein by reference, particularly in the sections entitled "Prospectus Summary," "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Business," and include statements regarding the intent, belief or current expectations of the company and management that involveare subject to known and unknown risks, uncertainties and uncertainties.  Ourassumptions and other factors that could cause actual results couldand the timing of certain events to differ materially from those discussed herefuture results expressed or incorporatedimplied by reference.such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to those discussed under “Item 1A. Risk Factors” contained in our most recent Annual Report on Form 10-K for the year ended December 31, 2005, which are incorporated by reference, as well assection titled "Risk Factors" set forth above.

        This prospectus, any prospectus supplement and the information contained or incorporated by reference in this prospectus and any prospectus supplement.  For any securities offered under this prospectus, we will include risk factors, if appropriate, in the applicable prospectus supplement relating to those securities.  Each of these risks could adversely affect our business, operating results and financial condition, which may result in the loss of all or part of your investment.

DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus and the documents incorporated by reference hereinalso contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 27A of the Securities Act of 1933, as amended, or the Securities Act or otherwise.  These forward-looking statementsthat are based on ourmanagement's current expectations and beliefs, including estimates and projections about our industry. Forward-looking statements may be identified by usecompany, industry, financial condition, results of terms such as “anticipates”, “expects”, “intends”, “plans”, “seeks”, “estimates”, “believes”operations and similar expressions, although some forward-looking statements are expressed differently. Statements concerning our financial position, business strategy and plans or objectives for future operations are forward-looking statements.other matters. These statements are not guarantees of future performance and are subject to certainnumerous risks, uncertainties, and assumptions that are difficult to predictpredict.

        Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, you should not rely upon forward-looking statements as predictions of future events. The events and circumstances reflected in the forward-looking statements may causenot be achieved or occur and actual results tocould differ materially from management’s current expectations. Such risks and uncertainties include those set forth aboveprojected in the caption “Risk Factors.”  Theforward-looking statements. Except as required by applicable law, including the securities laws of the United States and the rules and regulations of the SEC, we do not plan to publicly update or revise any forward-looking statements incontained herein after we distribute this prospectus, speak only as of the time they are made and do not necessarily reflect our outlook at any other point in time.  We undertake no obligation to update publicly any forward-looking statements, whether as a result of any new information, future events or for any other reason. However, you should carefully review the risk factors set forth in other reports or documents we file from time to time with the Securities and Exchange Commission.otherwise.


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RATIO OF EARNINGS TO FIXED CHARGES

        The following table sets forth our ratio of earnings to fixed charges on a historical basis for each of the periods indicated. You should read these ratios in connection with our consolidated financial statements, including the notes to those statements, incorporated by reference in this prospectus.

 
 Fiscal Year Ended December 31, Three Months
ended
March 31,
2011
 
 
 2006 2007 2008 2009 2010 
 
 (dollars in thousands)
 

Ratio of earnings to fixed charges

 (7.64)16.63 0.84 (23.94)273.76 1,294.00 

Deficiency of earnings to fixed charges

 ($3,680) ($38)($1,596)  

Ratio of earnings to combined fixed charges and preference dividends

 (5.40)10.93 0.47 (6.35)80.62 132.21 

Deficiency of earnings to combined fixed charges and preference dividends

 ($3,057) ($215)($1,773)  

        The ratio of earnings to fixed charges has been computed on a consolidated basis. "Earnings" consist of income or loss from continuing operations before income taxes plus fixed charges. Fixed charges consist of interest expense and an estimate of the interest component of rent expense.


USE OF PROCEEDS

        

WeUnless otherwise indicated in the prospectus supplement, we will retain broad discretion over the use of the net proceeds from the sale of our securities offered hereby. Except as described in anyby this prospectus supplement, we currently anticipate using the net proceeds from the sale of our securities hereby primarily for general corporate purposes, for researchwhich may include working capital, capital expenditures, other corporate expenses and development,acquisitions of complementary products, technologies or businesses. The timing and generalamount of our actual expenditures will be based on many factors, including cash flows from operations and administrative expenses. The amounts and timingthe anticipated growth of our business. As a result, unless otherwise indicated in the expenditures may vary significantly. We may also use a portion ofprospectus supplement, our management will have broad discretion to allocate the net proceeds to acquire or invest in complementary businesses, products, technologies and joint ventures. Although we have no specific agreements, commitments or understandings with respect to any acquisition or investment, we evaluate acquisition and investment opportunities and engage in related discussions with other companies from time to time.

Pending the use of the net proceeds,offerings. Pending their ultimate use, we intend to invest the net proceeds in short-term, investment-grade, interest-bearing investment-grade securities.instruments.


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DESCRIPTION OF CAPITAL STOCK

        

DIVIDEND POLICY

We have never paid cash dividends onThe following information describes our common stock. We currently intend to retain earnings for use in our businessstock and do not anticipate paying any cash dividend in the foreseeable future. Any future declaration and payment of dividends will be subject to the discretionpreferred stock, as well as certain provisions of our boardamended and restated certificate of directors, will be subjectincorporation and bylaws. This description is only a summary. You should also refer to applicable lawour certificate of incorporation and will depend onbylaws, which have been filed with the SEC as exhibits to our resultsregistration statement, of operations, earnings, financial condition, contractual limitations, cash requirements, future prospects and other factors deemed relevant by our board of directors.which this prospectus forms a part.

General

        

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DESCRIPTION OF SECURITIES

Our authorized capital stock consists of 70,000,000 shares of common stock with a $0.001 par value per share, authorized, and 2,000,000 shares of preferred stock with a $0.001 par value per share, 1,000,000 shares of which are designated as "Series A Preferred Stock". Our board of directors may establish the rights and preferences of the preferred stock from time to time. As of April 29, 2011, there were 31,973,288 shares of common stock issued and outstanding and there were 883,000 shares of our series A preferred stock issued and outstanding.

        The following is a summary of the material provisions of the common stock and preferred stock provided for in our amended and restated certificate of incorporation and bylaws. For additional detail about our capital stock, please refer to our certificate of incorporation and bylaws, each as amended.

Common Stock

        Each holder of our common stock is entitled to one vote for each share on all matters to be voted upon by the stockholders. Subject to any preferential rights of any outstanding preferred stock, holders of our common stock are entitled to receive ratably the dividends, if any, as may be declared from time to time by the board of directors out of funds legally available therefore. We have never declared or paid any cash dividend on our capital stock and do not anticipate paying any cash dividends in the foreseeable future. If there is a liquidation, dissolution or winding up of our company, holders of our common stock would be entitled to share in our assets remaining after the payment of liabilities and any preferential rights of any outstanding preferred stock.

        Holders of our common stock have no preemptive or conversion rights or other subscription rights, and there are no redemption or sinking fund provisions applicable to the common stock. The outstanding shares of common stock are fully paid and non-assessable. The rights, preferences and privileges of the holders of our common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate and issue in the future.

        Our common stock is listed on the NASDAQ Global Select Market under the symbol "AXTI." The transfer agent and registrar for the common stock is Registrar and Transfer Company. Its address is 10 Commerce Drive, Cranford, NJ 07016, and its telephone number is (800) 368-5948.

Preferred Stock

        Our amended and restated certificate of incorporation provides that we may issue up to 2,000,000 shares of preferred stock, $0.001 par value per share, authorized, of which 883,000 shares have been designated as Series Aor preferred stock. TheAs of March 31, 2011, 883,000 shares of $0.001 par value Seriesour series A preferred stock were issued and outstanding at December 31, 2005and are non-voting and non-convertible preferred stock with a 5.0% cumulative annual dividend rate payable when declared by the board of directors and $4 per share liquidation preference over common stock. Thesestock, and must be paid before any distribution is made to common stockholders. Other than the series A preferred shares were issued when we completed our acquisition of Lyte Optronics, Inc. on May 28, 1999.

The following is a summary description of our common stock.

Voting Rights

Holders of our common stock, are entitled to one vote per share for the election of directors and on all other matters that require stockholder approval. Except as otherwise provided by law, and subject to any voting rights provided to holdersno shares of preferred stock are currently outstanding.

        The following description of preferred stock and the description of the terms of any particular series of preferred stock that we choose to issue hereunder and that will be set forth in the related prospectus supplement are not complete. These descriptions are qualified in their entirety by reference


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to our amended and restated certificate of incorporation and the certificate of designation relating to any series of preferred stock. The rights, preferences, privileges and restrictions of the preferred stock of each series will be fixed by the certificate of designation relating to that series. The prospectus supplement also will contain a description of certain United States federal income tax consequences relating to the purchase and ownership of the series of preferred stock that is described in the prospectus supplement.

        Under the terms of our amended and restated certificate of incorporation, our board of directors is authorized to issue shares of preferred stock in one or more series without stockholder approval. Our board of directors has the discretion to determine the rights, preferences, privileges and restrictions, including voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of each series of preferred stock. There are no restrictions presently on the repurchase or redemption of any shares of our preferred stock.

        The prospectus supplement for a series of preferred stock will specify:

    the maximum number of shares;

    the designation of the shares;

    the annual dividend rate, if any, whether the dividend rate is fixed or variable, the date or dates on which dividends will accrue, the dividend payment dates, and whether dividends will be cumulative;

    the price and the terms and conditions for redemption, if any, including redemption at our option or at the option of the holders, including the time period for redemption, and any accumulated dividends or premiums;

    the liquidation preference, if any, and any accumulated dividends upon the liquidation, dissolution or winding up of our affairs;

    any sinking fund or similar provision, and, if so, the terms and provisions relating to the purpose and operation of the fund;

    the terms and conditions, if any, for conversion or exchange of shares of any other class or classes of our capital stock or any series of any other class or classes, or of any other series of the same class, or any other securities or assets, including the price or the rate of conversion or exchange and the method, if any, of adjustment;

    the voting rights; and

    any or all other preferences and relative, participating, optional or other special rights, privileges or qualifications, limitations or restrictions.

        The issuance of additional shares of preferred stock will affect, and may adversely affect, the rights of holders of our common stock have exclusive voting rights on all matters requiring a votestock. It is not possible to state the actual effect of stockholders.  Stockholders are not entitled to vote cumulatively for the electionissuance of directors. Our outstandingany additional shares of preferred stock has no votingon the rights other than such voting rights required by law.

Dividends and Liquidation

Subject to any preferential rights of any outstanding preferred stock, holders of common stock until our board of directors determines the specific rights attached to that preferred stock. The effects of issuing additional preferred stock could include one or more of the following:

    restricting dividends on the common stock;

    diluting the voting power of the common stock;

    impairing the liquidation rights of the common stock; or

    delaying or preventing changes in control or management of our company.

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Effect of Certain Provisions of our Amended and Restated Certificate of Incorporation and Bylaws and the Delaware Anti-Takeover Statute

        Some provisions of Delaware law and our amended and restated certificate of incorporation and bylaws contain provisions that could make the following transactions more difficult:

    acquisition of us by means of a tender offer;

    acquisition of us by means of a proxy contest or otherwise; or

    removal of our incumbent officers and directors.

        Those provisions, summarized below, are expected to discourage coercive takeover practices and inadequate takeover bids and to promote stability in our management. These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with our board of directors.

    Amended and Restated Certificate of Incorporation and Bylaws

        Our amended and restated certificate of incorporation and our bylaws provide for the following:

    Undesignated Preferred Stock.  The ability to authorize undesignated preferred stock makes it possible for our board of directors to issue one or more series of preferred stock with voting or other rights or preferences that could impede the success of any attempt to change control of our company. These and other provisions may have the effect of deferring hostile takeovers or delaying changes in control or management of our company.

    Stockholder Meetings.  Our bylaws provide that in general a right to receive dividends when and if declaredspecial meeting of stockholders may be called only by our board of directors, outits chairman or our president.

    Requirements for Advance Notification of funds legally available. InStockholder Nominations and Proposals.  Our bylaws establish advance notice procedures with respect to stockholder proposals and the eventnomination of candidates for election as directors, other than nominations made by or at the direction of our liquidation, dissolutionboard of directors or winding up,a committee of the board of directors.

    Board Classification.  Our board of directors is divided into three classes. The directors in each class are elected to serve for a three-year term, one class being elected each year by our stockholders. This system of electing and removing directors may tend to discourage a third party from making a tender offer or otherwise attempting to obtain control of us, because it generally makes it more difficult for stockholders to replace a majority of the directors.

    Limits on Ability of Stockholders to Act by Written Consent.  We have provided in our bylaws that our stockholders may not act by written consent. This limit on the ability of our stockholders to act by written consent may lengthen the amount of time required to take stockholder actions. As a result, a holder controlling a majority of our capital stock would not be able to amend our bylaws or remove directors without holding a meeting of our stockholders called in accordance with our bylaws.

    Amendment of Certificate of Incorporation and Bylaws.  The amendment of the above provisions of our amended and restated certificate of incorporation and bylaws requires approval by holders of commonat least two-thirds of our outstanding capital stock are entitled to share ratablyvote generally in the assets remaining after paymentelection of liabilities and the liquidation preferences of any outstanding preferred stock.directors.

    Delaware Anti-Takeover Statute

        

Antitakeover Provisions

Delaware Law

AXT isWe are subject to Section 203 of the Delaware General Corporation Law regulating corporate takeovers,of the State of Delaware, which prohibits a Delaware corporation from engaging in any business combination with an “interested stockholder”any interested


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stockholder for a period of three years unless:

                  prior toafter the timedate that asuch stockholder became an interested stockholder, with the following exceptions:

        

Except as otherwise specified inIn general, Section 203 an “interested stockholder” is defineddefines business combination to include (a) the following:

        In general, Section 203 defines interested stockholder as an entity or person that iswho, together with affiliates and associates, beneficially owns, or within three years prior to the ownerdetermination of interested stockholder status did own, 15% or more of the outstanding voting stock of the corporation.


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DESCRIPTION OF THE DEPOSITARY SHARES

General

        At our option, we may elect to offer fractional shares of preferred stock, rather than full shares of preferred stock. If we do elect to offer fractional shares of preferred stock, we will issue receipts for depositary shares and each of these depositary shares will represent a fraction of a share of a particular series of preferred stock, as specified in the applicable prospectus supplement. Each owner of a depositary share will be entitled, in proportion to the applicable fractional interest in shares of preferred stock underlying that depositary share, to all rights and preferences of the preferred stock underlying that depositary share. These rights may include dividend, voting, redemption and liquidation rights.

        The shares of preferred stock underlying the depositary shares will be deposited with a bank or trust company selected by us to act as depositary, under a deposit agreement by and among us, the depositary and the holders of the depositary receipts. The depositary will be the transfer agent, registrar and dividend disbursing agent for the depositary shares.

        The depositary shares will be evidenced by depositary receipts issued pursuant to the depositary agreement. Holders of depositary receipts agree to be bound by the deposit agreement, which requires holders to take certain actions such as filing proof of residence and paying certain charges.

        The summary of terms of the depositary shares contained in this prospectus is not complete, and is subject to modification in any prospectus supplement for any issuance of depositary shares. You should refer to the forms of the deposit agreement, our certificate of incorporation and the certificate of designation that are, or will be, filed with the SEC for the applicable series of preferred stock.

Dividends

        The depositary will distribute cash dividends or other cash distributions, if any, received in respect of the series of preferred stock underlying the depositary shares to the record holders of depositary receipts in proportion to the number of depositary shares owned by those holders on the relevant record date. The relevant record date for depositary shares will be the same date as the record date for the preferred stock.

        In the event of a distribution other than in cash, the depositary will distribute property received by it to the record holders of depositary receipts that are entitled to receive the distribution, unless the depositary determines that it is not feasible to make the distribution. If this occurs, the depositary, with our approval, may adopt another method for the distribution, including selling the property and distributing the net proceeds to the holders.

Liquidation preference

        If a series of preferred stock underlying the depositary shares has a liquidation preference, in the event of our voluntary or involuntary liquidation, dissolution or winding up, holders of depositary shares will be entitled to receive the fraction of the liquidation preference accorded each share of the applicable series of preferred stock, as set forth in the applicable prospectus supplement.

Redemption

        If a series of preferred stock underlying the depositary shares is subject to redemption, the depositary shares will be redeemed from the proceeds received by the depositary resulting from the redemption, in whole or in part, of the preferred stock held by the depositary. Whenever we redeem any preferred stock held by the depositary, the depositary will redeem, as of the same redemption date, the number of depositary shares representing the preferred stock so redeemed. The depositary will mail


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the notice of redemption to the record holders of the depositary receipts promptly upon receiving the notice from us and not fewer than 20 or more than 60 days, unless otherwise provided in the applicable prospectus supplement, prior to the date fixed for redemption of the preferred stock.

Voting

        Upon receipt of notice of any meeting at which the holders of preferred stock are entitled to vote, the depositary will mail the information contained in the notice of meeting to the record holders of the depositary receipts underlying the preferred stock. Each record holder of those depositary receipts on the record date will be entitled to instruct the depositary as to the exercise of the voting rights pertaining to the amount of preferred stock underlying that holder's depositary shares. The record date for the depositary will be the same date as the record date for the preferred stock. The depositary will, to the extent practicable, vote the preferred stock underlying the depositary shares in accordance with these instructions. We will agree to take all action that may be deemed necessary by the depositary in order to enable the depositary to vote the preferred stock in accordance with these instructions. The depositary will not vote the preferred stock to the extent that it does not receive specific instructions from the holders of depositary receipts.

Withdrawal of preferred stock

        Owners of depositary shares will be entitled to receive upon surrender of depositary receipts at the principal office of the depositary and payment of any unpaid amount due to the depositary, the number of whole shares of preferred stock underlying their depositary shares.

        Partial shares of preferred stock will not be issued. Holders of preferred stock will not be entitled to deposit the shares under the deposit agreement or to receive depositary receipts evidencing depositary shares for the preferred stock.

Amendment and termination of the deposit agreement

        The form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement may be amended by agreement between the depositary and us. However, any amendment which materially and adversely alters the rights of the holders of depositary shares, other than fee changes, will not be effective unless the amendment has been approved by at least a majority of the outstanding depositary shares. The deposit agreement may be terminated by the depositary or us only if:

Charges of depositary

        We will pay all transfer and other taxes and governmental charges arising solely from the existence of the depositary arrangement. We will also pay charges of the depositary in connection with:


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        Holders of depositary receipts will pay transfer, income and other taxes and governmental charges and other specified charges as provided in the deposit agreement for their accounts. If these charges have not been paid, the depositary may:

Miscellaneous

        The depositary will forward to the holders of depositary receipts all reports and communications we deliver to the depositary that we are required to furnish to the holders of the preferred stock. In addition, the depositary will make available for inspection by holders of depositary receipts at the principal office of the depositary, and at such other places as it may from time to time deem advisable, any reports and communications we deliver to the depositary as the holder of preferred stock.

        Neither the depositary nor we will be liable if either the depositary or we are prevented or delayed by law or any circumstance beyond the control of either the depositary or us in performing our respective obligations under the deposit agreement. Our obligations and the depositary's obligations will be limited to the performance in good faith of our or the depositary's respective duties under the deposit agreement. Neither the depositary nor we will be obligated to prosecute or defend any legal proceeding in respect of any depositary shares or preferred stock unless satisfactory indemnity is furnished. The depositary and we may rely on:

Resignation and removal of depositary

        The depositary may resign at any time by delivering a notice to us. We may remove the depositary at any time. Any such resignation or removal will take effect upon the appointment of a successor depositary and its acceptance of such appointment. The successor depositary must be appointed within 60 days after delivery of the notice for resignation or removal. The successor depositary must be a bank and trust company having its principal office in the United States of America and having a combined capital and surplus of at least $100,000,000.

Federal income tax consequences

        Owners of the depositary shares will be treated for U.S. federal income tax purposes as if they were owners of the preferred stock underlying the depositary shares. As a result, owners will be entitled to take into account for U.S. federal income tax purposes and deductions to which they would be entitled if they were holders of such preferred stock. No gain or loss will be recognized for U.S. federal income tax purposes upon the withdrawal of preferred stock in exchange for depositary shares. The tax basis of each share of preferred stock to an exchanging owner of depositary shares will, upon such exchange, be the same as the aggregate tax basis of the depositary shares exchanged. The holding period for preferred stock in the hands of an exchanging owner of depositary shares will include the period during which such person owned such depositary shares.


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DESCRIPTION OF THE WARRANTS

General

        We may issue warrants for the purchase of our debt securities, preferred stock or common stock, or any combination thereof. Warrants may be issued independently or together with our debt securities, preferred stock or common stock and may be attached to or separate from any offered securities. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and a bank or trust company, as warrant agent. The warrant agent will act solely as our agent in connection with the warrants. The warrant agent will not have any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. This summary of certain provisions of the warrants is not complete. For the terms of a particular series of warrants, you should refer to the prospectus supplement for that series of warrants and the warrant agreement for that particular series.

Debt warrants

        The prospectus supplement relating to a particular issue of warrants to purchase debt securities will describe the terms of the debt warrants, including the following:

        Debt warrant certificates will be exchangeable for new debt warrant certificates of different denominations. Debt warrants may be exercised at the corporate trust office of the warrant agent or


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any other office indicated in the prospectus supplement. Prior to the exercise of their debt warrants, holders of debt warrants will not have any of the rights of holders of the debt securities purchasable upon exercise and will not be entitled to payment of principal or any premium, if any, or interest on the debt securities purchasable upon exercise.

Equity warrants

        The prospectus supplement relating to a particular series of warrants to purchase our common stock or preferred stock will describe the terms of the warrants, including the following:

        Holders of equity warrants will not be entitled:


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DESCRIPTION OF THE DEBT SECURITIES

        The debt securities may be either secured or unsecured and will either be our senior debt securities or our subordinated debt securities. The debt securities will be issued under one or more separate indentures between us and a trustee to be specified in an accompanying prospectus supplement. Senior debt securities will be issued under a senior indenture and subordinated debt securities will be issued under a subordinated indenture. Together, the senior indenture and the subordinated indenture are called indentures in this description. This prospectus, together with the applicable prospectus supplement, will describe the terms of a particular series of debt securities.

        The following is a summary of selected provisions and definitions of the indentures and debt securities to which any prospectus supplement may relate. The summary of selected provisions of the indentures and the debt securities appearing below is not complete and is subject to, and qualified entirely by reference to, all of the provisions of the applicable indenture and certificates evidencing the applicable debt securities. For additional information, you should look at the applicable indenture and the certificate evidencing the applicable debt security that is filed as an exhibit to the registration statement that includes the prospectus. In this description of the debt securities, the words "we," "us," or "our" refer only to AXT, Inc. and not to any of our subsidiaries, unless we expressly state or the context otherwise requires.

        The following description sets forth selected general terms and provisions of the applicable indenture and debt securities to which any prospectus supplement may relate. Other specific terms of the applicable indenture and debt securities will be described in the applicable prospectus supplement. If any particular terms of the indenture or debt securities described in a prospectus supplement differ from any of the terms described below, then the terms described below will be deemed to have been superseded by that prospectus supplement.

General

        Debt securities may be issued in separate series without limitation as to aggregate principal amount. We may specify a maximum aggregate principal amount for the debt securities of any series.

        We are not limited as to the amount of debt securities we may issue under the indentures. Unless otherwise provided in a prospectus supplement, a series of debt securities may be reopened to issue additional debt securities of such series.

        The prospectus supplement relating to a particular series of debt securities will set forth:


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        Unless otherwise specified in the prospectus supplement, the debt securities will be registered debt securities. Debt securities may be sold at a substantial discount below their stated principal amount, bearing no interest or interest at a rate which at time of issuance is below market rates. The U.S. federal income tax considerations applicable to debt securities sold at a discount will be described in the applicable prospectus supplement.

Exchange and transfer

        Debt securities may be transferred or exchanged at the office of the security registrar or at the office of any transfer agent designated by us.

        We will not impose a service charge for any transfer or exchange, but we may require holders to pay any tax or other governmental charges associated with any transfer or exchange.


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        In the event of any partial redemption of debt securities of any series, we will not be required to:

        We will appoint the trustee as the initial security registrar. Any transfer agent, in addition to the security registrar initially designated by us, will be named in the prospectus supplement. We may designate additional transfer agents or change transfer agents or change the office of the transfer agent. However, we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.

Global securities

        The debt securities of any series may be represented, in whole or in part, by one or more global securities. Each global security will:

        No global security may be exchanged in whole or in part for debt securities registered in the name of any person other than the depositary or any nominee unless:

        As long as the depositary, or its nominee, is the registered owner of a global security, the depositary or nominee will be considered the sole owner and holder of the debt securities represented by the global security for all purposes under the indentures. Except in the above limited circumstances, owners of beneficial interests in a global security will not be:

        Payments on a global security will be made to the depositary or its nominee as the holder of the global security. Some jurisdictions have laws that require that certain purchasers of securities take physical delivery of such securities in definitive form. These laws may impair the ability to transfer beneficial interests in a global security.

        Institutions that have accounts with the depositary or its nominee are referred to as "participants." Ownership of beneficial interests in a global security will be limited to participants and to persons that may hold beneficial interests through participants. The depositary will credit, on its book-entry registration and transfer system, the respective principal amounts of debt securities represented by the global security to the accounts of its participants.


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        Ownership of beneficial interests in a global security will be shown on and effected through records maintained by the depositary, with respect to participants' interests, or any participant, with respect to interests of persons held by participants on their behalf.

        Payments, transfers and exchanges relating to beneficial interests in a global security will be subject to policies and procedures of the depositary. The depositary policies and procedures may change from time to time. Neither any trustee nor we will have any responsibility or liability for the depositary's or any participant's records with respect to beneficial interests in a global security.

Payment and paying agents

        Unless otherwise indicated in a prospectus supplement, the provisions described in this paragraph will apply to the debt securities. Payment of interest on a debt security on any interest payment date will be made to the person in whose name the debt security is registered at the close of business on the regular record date. Payment on debt securities of a particular series will be payable at the office of a paying agent or paying agents designated by us. However, at our option, we may pay interest by mailing a check to the record holder. The trustee will be designated as our initial paying agent.

        We may also name any other paying agents in a prospectus supplement. We may designate additional paying agents, change paying agents or change the office of any paying agent. However, we will be required to maintain a paying agent in each place of payment for the debt securities of a particular series.

        All moneys paid by us to a paying agent for payment on any debt security that remain unclaimed for a period ending the earlier of:

will be repaid to us thereafter. The holder may look only to us for such payment.

No protection in the event of a change of control

        Unless otherwise indicated in a prospectus supplement with respect to a particular series of debt securities, the debt securities will not contain any provisions that may afford holders of the debt securities protection in the event we have a change in control or in the event of a highly leveraged transaction, whether or not such transaction results in a change in control.

Covenants

        Unless otherwise indicated in a prospectus supplement with respect to a particular series of debt securities, the debt securities will not contain any financial or restrictive covenants.

Consolidation, merger and sale of assets

        Unless we indicate otherwise in a prospectus supplement with respect to a particular series of debt securities, we may not consolidate with or merge into any other person (other than a subsidiary of us), in a transaction in which we are not the surviving corporation, or convey, transfer or lease our properties and assets substantially as an entirety to, any person (other than a subsidiary of AXT), unless:


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Events of default

        Unless we indicate otherwise in a prospectus supplement, the following will be events of default for any series of debt securities under the indentures:

        Additional or different events of default applicable to a series of debt securities may be described in a prospectus supplement. An event of default of one series of debt securities is not necessarily an affiliateevent of default for any other series of debt securities.

        The trustee may withhold notice to the holders of any default, except defaults in the payment of principal, premium, if any, interest, any sinking fund installment on, or associatewith respect to any conversion right of, the debt securities of such series. However, the trustee must consider it to be in the interest of the holders of the debt securities of such series to withhold this notice.

        Unless we indicate otherwise in a prospectus supplement, if an event of default, other than an event of default described in clause (5) above, shall occur and be continuing with respect to any series of debt securities, either the trustee or the holders of at least 25 percent in aggregate principal amount of the outstanding securities of that series may declare the principal amount and premium, if any, of the debt securities of that series, or if any debt securities of that series are original issue discount securities, such other amount as may be specified in the applicable prospectus supplement, in each case together with accrued and unpaid interest, if any, thereon, to be due and payable immediately.

        Unless we indicate otherwise in a prospectus supplement, if an event of default described in clause (5) above shall occur, the principal amount and premium, if any, of all the debt securities of that series, or if any debt securities of that series are original issue discount securities, such other amount as may be specified in the applicable prospectus supplement, in each case together with accrued and unpaid interest, if any, thereon, will automatically become immediately due and payable. Any payment by us on the subordinated debt securities following any such acceleration will be subject to the subordination provisions described below under "Subordinated debt securities."

        Notwithstanding the foregoing, each indenture will provide that we may, at our option, elect that the sole remedy for an event of default relating to our failure to comply with our obligations described under the section entitled "Reports" below or our failure to comply with the requirements of Section 314(a)(1) of the Trust Indenture Act will for the first 180 days after the occurrence of such an event of default consist exclusively of the right to receive additional interest on the relevant series of debt securities at an annual rate equal to (i) 0.25% of the principal amount of such series of debt securities for the first 90 days after the occurrence of such event of default and (ii) 0.50% of the principal amount of such series of debt securities from the 91st day to, and including, the 180th day after the occurrence of such event of default, which we call "additional interest." If we so elect, the additional interest will accrue on all outstanding debt securities from and including the date on which such event of default first occurs until such violation is cured or waived and shall be payable on each


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relevant interest payment date to holders of record on the regular record date immediately preceding the interest payment date. On the 181st day after such event of default (if such violation is not cured or waived prior to such 181st day), the debt securities will be subject to acceleration as provided above. In the event we do not elect to pay additional interest upon any such event of default in accordance with this paragraph, the debt securities will be subject to acceleration as provided above.

        In order to elect to pay the additional interest as the sole remedy during the first 180 days after the occurrence of any event of default relating to the failure to comply with the reporting obligations in accordance with the preceding paragraph, we must notify all holders of debt securities and the trustee and paying agent of such election prior to the close of business on the first business day following the date on which such event of default occurs. Upon our failure to timely give such notice or pay the additional interest, the debt securities will be immediately subject to acceleration as provided above.

        After acceleration, the holders of a majority in aggregate principal amount of the outstanding securities of that series may, under certain circumstances, rescind and annul such acceleration if all events of default, other than the non-payment of accelerated principal, or other specified amounts or interest, have been cured or waived.

        Other than the duty to act with the required care during an event of default, the trustee will not be obligated to exercise any of its rights or powers at the request of the holders unless the holders shall have offered to the trustee reasonable indemnity. Generally, the holders of a majority in aggregate principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee.

        A holder of debt securities of any series will not have any right to institute any proceeding under the indentures, or for the appointment of a receiver or a trustee, or for any other remedy under the indentures, unless:

        Holders may, however, sue to enforce the payment of principal, premium or interest on any debt security on or after the due date or to enforce the right, if any, to convert any debt security (if the debt security is convertible) without following the procedures listed in (1) through (3) above.

        We will furnish the trustee an annual statement from our officers as to whether or not we are in default in the performance of the conditions and covenants under the indenture and, if so, specifying all known defaults.

Modification and waiver

        Unless we indicate otherwise in a prospectus supplement, the applicable trustee and we may make modifications and amendments to an indenture with the consent of the holders of a majority in aggregate principal amount of the outstanding securities of each series affected by the modification or amendment.


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        We may also make modifications and amendments to the indentures for the benefit of holders without their consent, for certain purposes including, but not limited to:

        However, neither the trustee nor we may make any modification or amendment without the consent of the holder of each outstanding security of that series affected by the modification or amendment if such modification or amendment would:

Satisfaction and discharge; defeasance

        We may be discharged from our obligations on the debt securities, subject to limited exceptions, of any series that have matured or will mature or be redeemed within one year if we deposit enough money with the trustee to pay all the principal, interest and any premium due to the stated maturity date or redemption date of the debt securities.

        Each indenture contains a provision that permits us to elect either or both of the following:


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        To make either of the above elections, we must irrevocably deposit in trust with the trustee enough money to pay in full the principal, interest and premium on the debt securities. This amount may be made in cash and/or U.S. government obligations or, in the case of debt securities denominated in a currency other than U.S. dollars, cash in the currency in which such series of securities is denominated and/or foreign government obligations. As a condition to either of the above elections, for debt securities denominated in U.S. dollars we must deliver to the trustee an opinion of counsel that the holders of the debt securities will not recognize income, gain or loss for U.S. federal income tax purposes as a result of the action.

        With respect to debt securities of any series that are denominated in a currency other than United States dollars, "foreign government obligations" means:

Reports

        The indentures provide that any reports or documents that we file with the SEC pursuant to Section 13 or 15(d) of the Exchange Act will be filed with the trustee within 15 days after the same is filed with the SEC. Documents filed by us with the SEC via the EDGAR system will be deemed filed with the trustee as of the time such documents are filed with the SEC.

Notices

        Notices to holders will be given by mail to the addresses of the holders in the security register.

Governing law

        The indentures and the debt securities will be governed by, and construed under, the laws of the State of New York.

No personal liability of directors, officers, employees and stockholders

        No incorporator, stockholder, employee, agent, officer, director or subsidiary of ours will have any liability for any obligations of ours, or because of the creation of any indebtedness under the debt securities, the indentures or supplemental indentures. The indentures provide that all such liability is expressly waived and released as a condition of, and as a consideration for, the execution of such indentures and the issuance of the debt securities.


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Regarding the trustee

        The indentures limit the right of the trustee, should it become our creditor, to obtain payment of claims or secure its claims.

        The trustee will be permitted to engage in certain other transactions with us. However, if the trustee acquires any conflicting interest, and there is a default under the debt securities of any series for which it is trustee, the trustee must eliminate the conflict or resign.

Subordinated debt securities

        The following provisions will be applicable with respect to each series of subordinated debt securities, unless otherwise stated in the prospectus supplement relating to that series of subordinated debt securities.

        The indebtedness evidenced by the subordinated debt securities of any series is subordinated, to the extent provided in the subordinated indenture and the applicable prospectus supplement, to the prior payment in full, in cash or other payment satisfactory to the holders of senior debt, of all senior debt, including any senior debt securities.

        Upon any distribution of our assets upon any dissolution, winding up, liquidation or reorganization, whether voluntary or involuntary, marshalling of assets, assignment for the benefit of creditors, or in bankruptcy, insolvency, receivership or other similar proceedings, payments on the subordinated debt securities will be subordinated in right of payment to the prior payment in full in cash or other payment satisfactory to holders of senior debt of all senior debt.

        In the event of any acceleration of the subordinated debt securities of any series because of an event of default with respect to the subordinated debt securities of that series, holders of any senior debt would be entitled to payment in full in cash or other payment satisfactory to holders of senior debt of all senior debt before the holders of subordinated debt securities are entitled to receive any payment or distribution.

        In addition, the subordinated debt securities will be structurally subordinated to all indebtedness and other liabilities of our subsidiaries, including trade payables and lease obligations. This occurs because our right to receive any assets of our subsidiaries upon their liquidation or reorganization, and your right to participate in those assets, will be effectively subordinated to the claims of that subsidiary's creditors, including trade creditors, except to the extent that we are recognized as a creditor of such subsidiary. If we are recognized as a creditor of that subsidiary, our claims would still be subordinate to any security interest in the assets of the subsidiary and any indebtedness of the subsidiary senior to us.

        We are required to promptly notify holders of senior debt or their representatives under the subordinated indenture if payment of the subordinated debt securities is accelerated because of an event of default.

        Under the subordinated indenture, we may also not make payment on the subordinated debt securities if:


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        We will resume payments on the subordinated debt securities:

        No new payment blockage period may commence on the basis of a nonpayment default unless 365 days have elapsed from the effectiveness of the immediately prior payment blockage notice. No nonpayment default that existed or was continuing on the date of delivery of any payment blockage notice to the trustee shall be the basis for a subsequent payment blockage notice.

        As a result of these subordination provisions, in the event of our bankruptcy, dissolution or reorganization, holders of senior debt may receive more, ratably, and holders of the subordinated debt securities may receive less, ratably, than our other creditors. The subordination provisions will not prevent the occurrence of any event of default under the subordinated indenture.

        The subordination provisions will not apply to payments from money or government obligations held in trust by the trustee for the payment of principal, interest and premium, if any, on subordinated debt securities pursuant to the provisions described under the section entitled "Satisfaction and discharge; defeasance," if the subordination provisions were not violated at the time the money or government obligations were deposited into trust.

        If the trustee or any holder receives any payment that should not have been made to them in contravention of subordination provisions before all senior debt is paid in full in cash or other payment satisfactory to holders of senior debt, then such payment will be held in trust for the holders of senior debt.

        Senior debt securities will constitute senior debt under the subordinated indenture.

        Additional or different subordination provisions may be described in a prospectus supplement relating to a particular series of debt securities.

Definitions

        "Designated senior debt" means our obligations under any particular senior debt in which the instrument creating or evidencing the same or the assumption or guarantee thereof, or related agreements or documents to which we are a party, expressly provides that such indebtedness shall be designated senior debt for purposes of the subordinated indenture. The instrument, agreement or other document evidencing any designated senior debt may place limitations and conditions on the right of such senior debt to exercise the rights of designated senior debt.

        "Indebtedness" means the following, whether absolute or contingent, secured or unsecured, due or to become due, outstanding on the date of the indenture for such series of securities or thereafter created, incurred or assumed:


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        "Senior debt" means the principal of, premium, if any, and interest, including all interest accruing subsequent to the commencement of any bankruptcy or similar proceeding, whether or not a claim for post-petition interest is allowable as a claim in any such proceeding, and rent payable on or in connection with, and all fees and other amounts payable in connection with, our indebtedness. However, senior debt shall not include:

        "Subsidiary" means a corporation and was the owner of 15% or more than 50% of the outstanding voting stock of the corporation at any time within three years immediately prior to the date of determination and (b) the affiliates and associates of any such person.

4



Certificate of Incorporation and Bylaw Provisions

Provisions of our certificate of incorporation and bylaws may have the effect of making it more difficult for a third party to acquire,which is owned, directly or of discouraging a third party from attempting to acquire, control of AXT. These provisions could cause the price of our common stock to decrease. Some of these provisions allowindirectly, by us to issue up to 2,000,000 shares of preferred stock without any vote or further action by the stockholders, eliminate the right of stockholders to act by written consent without a meeting and eliminate cumulative voting in the election of directors.  In addition, these provisions include the right of our board to elect a director to fill a space created by a board vacancy or the expansion of the board, the ability of our board to alter our bylaws, and the requirement that only our board or the holders of at least 10% of our outstanding shares may call a special meeting of our stockholders.  These provisions may make it more difficult for stockholders to take specific corporate actions and could have the effect of delaying or preventing a change in control of AXT.

Our certificate of incorporation provides that the board of directors will be divided into three classes of directors, with each class serving a staggered three-year term. The classification system of electing directors may discourage a third party from making a tender offer or otherwise attempting to obtain control of us and may maintain the incumbency of the board of directors, because the classification of the board of directors generally increases the difficulty of replacing a majority of the directors.

Stockholder Rights Plan

During fiscal 2001, we adopted a Stockholder Rights Plan (the “Rights Agreement”). Pursuant to the Rights Agreement, rights were distributed at the rate of one right for each share of common stock owned by our stockholders of record on May 30, 2001. The rights expire on April 24, 2011 unless extended or earlier redeemed or exchanged by us.

Under the Rights Agreement, each right entitles the registered holder to purchase one one-thousandth of a share of our Series A preferred stock at a price of $131.00 per share. The rights will become exercisable only if a person or group acquires beneficial ownership of 15% or more of our commonother subsidiaries or by a combination of us and our other subsidiaries. For purposes of this definition, "voting stock" means stock or commences a tender offerother similar interests which ordinarily has or exchange offer upon consummationhave voting power for the election of whichdirectors, or persons performing similar functions, whether at all times or only so long as no senior class of stock or other interests has or have such person or group would beneficially own 15%voting power by reason of any contingency.


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DESCRIPTION OF THE UNITS

        We may issue units comprised of one or more of our common stock.the other classes of securities described in this prospectus in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The units may be issued under unit agreements to be entered into between us and a unit agent, as detailed in the prospectus supplement relating to the units being offered. The prospectus supplement will describe:

        The descriptions of the units in this prospectus and in any prospectus supplement are summaries of the material provisions of the applicable agreements. These descriptions do not restate those agreements in their entirety and may not contain all the information that you may find useful. We urge you to read the applicable agreements because they, and not the summaries, define your rights as holders of the units. For more information, please review the forms of the relevant agreements, which will be filed with the SEC promptly after the offering of units and will be available as described under the heading "Where You Can Find More Information."


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Transfer Agent and Registrar

The transfer agent and registrar for our common stock is Registrar and Transfer Company.

5



PLAN OF DISTRIBUTION

We may sell our common stock underthe securities offered through this prospectus from time(1) to time. Registration of the securities covered by this prospectus does not mean, however, that those securities will necessarily be offered or sold.

We may sell our common stock in one or more offerings:

        •through one or more underwriters or dealers, in a public offering and sale by them;

        •(2) directly to investors;purchasers, including our affiliates, (3) through agents, or

        • (4) through agents.

Wea combination of any these methods. The securities may sell our common stock from time to time:

        •  in one or more transactionsbe distributed at a fixed price or prices, which may be changed, from time to time;

        •  at market prices prevailing at the timestime of sale;

        •  atsale, prices related to suchthe prevailing market prices;prices, or

        •  at negotiated prices.

We, and our underwriters or agents, reserve The prospectus supplement will include the right to accept or reject all or part of any proposed purchase of our common stock. We will describe the method of distribution of our common stock and following information:

Sale through underwriters or agents, we will include in the applicable prospectus supplement:

        •  the names of those underwriters or agents;dealers

        

        •  applicable fees, discounts and commissions to be paid to them;

        •  details regarding over-allotment options, if any; and

        •  the net proceeds to us.

If underwriters are used in the sale, of our common stock,the underwriters will acquire the securities will be acquired by the underwriters for their own account, andincluding through underwriting, purchase, security lending or repurchase agreements with us. The underwriters may be resoldresell the securities from time to time in one or more transactions, described above. The common stockincluding negotiated transactions. Underwriters may be either offeredsell the securities in order to facilitate transactions in any of our other securities (described in this prospectus or otherwise), including other public or private transactions and short sales. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Generally,Unless otherwise indicated in the underwriters’prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, precedent and the underwriters will be obligated to purchase all of the offered securities if they purchase any of the securities. Wethem. The underwriters may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement, naming the underwriter, the nature ofchange from time to time any such relationship.

We may authorize underwriters, dealers or agents to solicit offers by certain purchasers to purchase our common stock from us at the public offering price set forth in the prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a specified date in the future. The contracts will be subject only to those conditions set forth in the prospectus supplement, and the prospectus supplement will set forth any commissions we pay for solicitation of these contracts.

Underwriters, dealers and agents may contract for or otherwise be entitled to indemnification by us against certain civil liabilities, including liabilities under the 1933 Act, or to contribution with respect to payments made by the underwriters, dealers or agents, under agreements between us and the underwriters, dealers and agents.

We may grant underwriters who participate in the distribution of our common stock an option to purchase additional common stock to cover over-allotments, if any, in connection with the distribution.

6



Underwriters, dealers or agents may receive compensation in the form of discounts, concessions or commissions from us or our purchasers, as their agents in connection with the sale of our common stock. These underwriters, dealers or agents may be considered to be underwriters under the 1933 Act. As a result, discounts, commissions or profits on resale received by the underwriters, dealers or agents may be treated as underwriting discounts and commissions. The prospectus supplement will identify any such underwriter, dealer or agent and describe any compensation received by them from us. Anyinitial public offering price and any discounts or concessions allowed or re-allowedreallowed or paid to dealers. The prospectus supplement will include the names of the principal underwriters the respective amount of securities underwritten, the nature of the obligation of the underwriters to take the securities and the nature of any material relationship between an underwriter and us.

        If dealers are used in the sale of securities offered through this prospectus, we will sell the securities to them as principals. They may then resell those securities to the public at varying prices determined by the dealers at the time of resale. The prospectus supplement will include the names of the dealers and the terms of the transaction.

Direct sales and sales through agents

        We may sell the securities offered through this prospectus directly. In this case, no underwriters or agents would be changedinvolved. Such securities may also be sold through agents designated from time to time.

Any common stock sold pursuant to a The prospectus supplement will be includedname any agent involved in the Nasdaq Global Market.offer or sale of the offered securities and will describe any commissions payable to the agent by us. Unless otherwise indicated in


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the prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

        We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. The terms of any such sales will be described in the prospectus supplement.

Market making, stabilization and other transactions

        Unless the applicable prospectus supplement states otherwise, each series of offered securities will be a new issue and will have no established trading market. We may elect to list any series of offered securities on an exchange. Any underwriters that we use in the sale of offered securities may make a market in such securities, but may discontinue such market making at any time without notice. Therefore, we cannot assure you that the securities will have a liquid trading market.

Any underwriter may also engage in over-allotment transactions, stabilizing transactions, short-coveringsyndicate covering transactions and penalty bids in accordance with Regulation MRule 104 under the Securities Exchange Act. Over-allotment involves sales in excessAct of the offering size, which create a short position.1934, as amended. Stabilizing transactions permitinvolve bids to purchase the underlying security so long asin the stabilizing bids do not exceed a specified maximum. Shortopen market for the purpose of pegging, fixing or maintaining the price of the securities. Syndicate covering transactions involve purchases of our common stockthe securities in the open market after the distribution ishas been completed in order to cover syndicate short positions.

        Penalty bids permit the underwriters to reclaim a selling concession from a dealersyndicate member when the securities originally sold by the dealersyndicate member are purchased in a syndicate covering transaction to cover syndicate short positions. Those activitiesStabilizing transactions, syndicate covering transactions and penalty bids may cause the price of the securities to be higher than it would otherwise be. If commenced,be in the absence of the transactions. The underwriters may, if they commence these transactions, discontinue them at any time.

Derivative transactions and hedging

        We, the underwriters or other agents may discontinue anyengage in derivative transactions involving the securities. These derivatives may consist of short sale transactions and other hedging activities. The underwriters or agents may acquire a long or short position in the activities at any time. We make no representationsecurities, hold or prediction asresell securities acquired and purchase options or futures on the securities and other derivative instruments with returns linked to the direction or magnitude of any effect that such transactions may have onrelated to changes in the price of our common stock. For athe securities. In order to facilitate these derivative transactions, we may enter into security lending or repurchase agreements with the underwriters or agents. The underwriters or agents may effect the derivative transactions through sales of the securities to the public, including short sales, or by lending the securities in order to facilitate short sale transactions by others. The underwriters or agents may also use the securities purchased or borrowed from us or others (or, in the case of derivatives, securities received from us in settlement of those derivatives) to directly or indirectly settle sales of the securities or close out any related open borrowings of the securities.

Electronic auctions

        We may also make sales through the Internet or through other electronic means. Since we may from time to time elect to offer securities directly to the public, with or without the involvement of agents, underwriters or dealers, utilizing the Internet or other forms of electronic bidding or ordering systems for the pricing and allocation of such securities, you should pay particular attention to the description of these activities, seethat system we will provide in a prospectus supplement.

        Such electronic system may allow bidders to directly participate, through electronic access to an auction site, by submitting conditional offers to buy that are subject to acceptance by us, and which


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may directly affect the price or other terms and conditions at which such securities are sold. These bidding or ordering systems may present to each bidder, on a so-called "real-time" basis, relevant information to assist in making a bid, such as the clearing spread at which the offering would be sold, based on the bids submitted, and whether a bidder's individual bids would be accepted, prorated or rejected. For example, in the case of a debt security, the clearing spread could be indicated as a number of "basis points" above an index treasury note. Of course, many pricing methods can and may also be used.

        Upon completion of such an electronic auction process, securities will be allocated based on prices bid, terms of bid or other factors. The final offering price at which securities would be sold and the allocation of securities among bidders would be based in whole or in part on the results of the Internet or other electronic bidding process or auction.

General information

        Agents, underwriters, and dealers may be entitled, under agreements entered into with us, to indemnification by us against certain liabilities, including liabilities under the heading “Underwriting” in the applicable prospectus supplement.Securities Act.


Underwriters, broker-dealers or agents who may become involved in the saleTable of our common stock may engage in transactions with and perform other services for us for which they receive compensation.Contents


LEGAL MATTERS

        

LEGAL MATTERS

The validity of the shares of common stocksecurities offered herebyby this prospectus will be passed upon for us by DLA Piper Rudnick Gray Cary US LLP, EastWilson Sonsini Goodrich & Rosati, Professional Corporation, Palo Alto, California.

EXPERTS
EXPERTS

The consolidated financial statements and the effectiveness of internal control over financial reporting of AXT, Inc. as of December 31, 2005 and 2004 and for each of the two years in the period ended December 31, 2005, incorporated in this prospectus by reference to AXT, Inc.’s Annual Report on Form 10-Ksubsidiaries for the year ended December 31, 2005,2010 have been so incorporated by reference herein in reliance onupon the report of Burr Pilger & Mayer, LLP,Inc., an independent registered public accounting firm, given onand upon the authority of said firm as experts in auditingaccounting and accounting.auditing.

The consolidated financial
WHERE YOU CAN FIND MORE INFORMATION

        We file annual, quarterly and other reports, proxy statements forand other information with the year ended December 31, 2003, incorporated in this prospectus by referenceSEC. Our SEC filings are available to the public over the Internet at the SEC's website at http://www.sec.gov. You may also read and copy any document we file at the SEC's Public Reference Room at 100 F Street, NE, Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the Public Reference Room. Our Annual Report on Form 10-K, forQuarterly Reports on Form 10-Q, and Current Reports on Form 8-K, including any amendments to those reports, and other information that we file with or furnish to the year ended December 31, 2005SEC pursuant to Section 13(a) or 15(d) of the Exchange Act can also be accessed free of charge through the Internet. These filings will be available as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC.

        We have been sofiled with the SEC a registration statement under the Securities Act of 1933 relating to the offering of these securities. The registration statement, including the attached exhibits, contains additional relevant information about us and the securities. This prospectus does not contain all of the information set forth in the registration statement. You can obtain a copy of the registration statement, at prescribed rates, from the SEC at the address listed above. The registration statement and the documents referred to below under "Incorporation by Reference" are also available on our Internet website, www.axt.com. We have not incorporated in relianceby reference into this prospectus the information on the reportour website, and you should not consider it to be a part of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authoritythis prospectus.


Table of said firm as experts in auditing and accounting.Contents


INCORPORATION OF CERTAIN INFORMATION INCORPORATED BY REFERENCE

The SEC allows us to incorporate by reference into this prospectus thecertain information contained in other documents we file with the SEC,it, which means that we can disclose important information to you by referring you to those documents. Any statement contained in any document incorporated or deemed to beThe information incorporated by reference herein shallis considered to be a part of this prospectus, and information that we file later with the SEC will automatically update and supersede information contained in this prospectus and any accompanying prospectus supplement. We incorporate by reference the documents listed below that we have previously filed with the SEC (excluding any portions of any Form 8-K that are not deemed "filed" pursuant to the General Instructions of Form 8-K):

    Annual Report on Form 10-K for the fiscal year ended December 31, 2010, including the information specifically incorporated by reference into the Form 10-K from our definitive proxy statement for the 2011 Annual Meeting of Stockholders;

    Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2011;

    Current Report on Form 8-K filed May 23, 2011; and

    The description of our common stock contained in the Registration Statement on Form 8-A relating thereto, including any amendment or report filed for the purpose of updating such description.

        We also incorporate by reference into this prospectus additional documents that we may file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the completion or termination of the offering, including all such documents we may file with the SEC after the date of the initial registration statement and prior to the effectiveness of the registration statement, but excluding any information deemed furnished and not filed with the SEC. Any statements contained in a previously filed document incorporated by reference into this prospectus is deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus, or in any othera subsequently filed document which also is or is deemed to be incorporated by reference herein, modifies or supersedes suchthat statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus. We incorporate by reference the documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the 1934 Act until the offering is completed (other than current reports or portions thereof furnished under Item 2.02 or Item 7.01 of Form 8-K):

        

7



1.

Our Annual Report on Form 10-K for the year ended December 31, 2005, filed March 30, 2006;

2.

Our Definitive Proxy Statement on Schedule 14A, filed April 25, 2006;

3.

Our Quarterly Report on Form 10-Q for the quarter ended March 31, 2006, filed on May 12, 2006; and

4.

The description of our common stock contained in our registration statement on Form 8-A filed with the SEC on April 24, 1998, including any amendment or report filed for the purpose of updating such description.

Upon writtenThis prospectus may contain information that updates, modifies or oral request, we will provide without chargeis contrary to each person to whom a copy of the prospectus is delivered a copyinformation in one or more of the documents incorporated by reference herein (other than exhibits to such documents unless such exhibits are specificallyin this prospectus. You should rely only on the information incorporated by reference herein). You may request a copy of these filings, at no cost, by writing or telephoning us at the following address: AXT, Inc., 4281 Technology Drive, Fremont, California 94538, Attention: Chief Financial Officer, telephone: (510) 683-5900.provided in this prospectus. We have not authorized no oneanyone else to provide you with different information. You should not assume that the information in this prospectus is accurate as of any date other than the date of this prospectus or the date of the documents incorporated by reference in this prospectus.

        We will provide to each person, including any beneficial owner, to whom this prospectus is delivered, upon written or oral request, at no cost to the requester, a copy of any and all of the information that differs from that containedis incorporated by reference in this prospectus.

        Requests for such documents should be directed to:

AXT, Inc.
4281 Technology Drive
Fremont, California 94538
Attn: Investor Relations

        You may also access the documents incorporated by reference in this prospectus through our website at www.axt.com. Except for the specific incorporated documents listed above, no information available on or through our website shall be deemed to be incorporated in this prospectus or any applicable prospectus supplement. Accordingly, you should not rely on any information that is not contained in this prospectus or any applicable prospectus supplement.

WHERE YOU CAN FIND MORE INFORMATION

We are a reporting company and file annual, quarterly and current reports, proxy statements and other information with the SEC. We have filed with the SEC a registration statement on Form S-3 under the Securities Act with respect to the securities we are offering under this prospectus.  This prospectus does not contain all of the information set forth in the registration statement and the exhibits to the registration statement.  For further information with respect to us and the securities we are offering under this prospectus, we refer you to the registration statement and the exhibits and schedules filed asof which it forms a partpart.


Table of the registration statement.  You may read and copy the registration statement, as well as our reports, proxy statements and other information, at the SEC’s public reference rooms at 100 F Street, N.E., Washington, D.C. 20549, as well as at the SEC’s regional offices at 500 West Madison Street, Suite 1400, Chicago, IL 60661 and at 233 Broadway, New York, NY 10279.  You can request copies of these documents by writing to the SEC and paying a fee for the copying cost.  Please call the SEC at 1-800-SEC-0330 for more information about the operation of the public reference rooms.  Our SEC filings are also available at the SEC’s web site at “http://www.sec.gov.” In addition, you can read and copy our SEC filings at the office of the National Association ofContents

$60,000,000

AXT, Inc.

Common Stock
Preferred Stock
Depositary Shares
Warrants
Debt Securities Dealers, Inc. at 1735 K Street, N.W., Washington, D.C. 20006.
Units


PROSPECTUS


                    , 2011


* * *

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PART II

INFORMATION NOT REQUIRED IN THE PROSPECTUS

ITEM Item 14.    OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.Other Expenses of Issuance and Distribution

The following table sets forth the feescosts and expenses, other than underwriting discounts and commissions, payable by the registrant in connection with the issuance and distributionsale of the securities being registered hereunder. Except for

Securities and Exchange Commission registration fee

 $6,966.00 

Nasdaq Global Market listing fee

   *

Accounting fees and expenses

   *

Legal fees and expenses

   *

Printing and engraving

   *

Fees and expenses of the transfer agent or trustee

   *

Miscellaneous

   *
    
 

Total

 $ *
    

*
To be provided by amendment or as an exhibit to a filing with the SEC registration fee, all amounts are estimates.

SEC registration fee

 

$

2,675.00

 

Accounting fees and expenses

 

25,500.00

 

Legal fees and expenses

 

10,000.00

 

Printing and engraving expenses

 

2,500.00

 

Miscellaneous expenses

 

2,325.00

 

 

 

 

 

Total

 

$

43,000.00

 

under Section 13(a), 13(c) or 15(d) of the Securities Exchange Act of 1934, as amended.

Item 15.    Indemnification of Directors and Officers

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

Section 102(b)(7)145(a) of the Delaware General Corporation Law permitsprovides that a Delaware corporation may indemnify any person who was or is a party or is threatened to limitbe made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the personal liabilityright of the corporation) by reason of the fact that such person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation or enterprise, against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or proceeding if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no cause to believe his or her conduct was unlawful.

        Section 145(b) of the Delaware General Corporation Law provides that a Delaware corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its directorsfavor by reason of the fact that such person acted in accordanceany of the capacities set forth above, against expenses (including attorneys' fees) actually and reasonably incurred by such person in connection with the provisions set forth therein. Our amendeddefense or settlement of such action or suit if he or she acted under similar standards, except that no indemnification may be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and restated certificate of incorporation, as amended, providesonly to the extent that the personalcourt in which such action or suit was brought shall determine that, despite the adjudication of liability but in view of our directorsall the circumstances of the case, such person is fairly and reasonably entitled to be indemnified for such expenses which the court shall be limited to the fullest extent permitted by applicable law.deem proper.

Section 145 of the Delaware General Corporation Law authorizesfurther provides that: (i) to the extent that a courtformer or present director or officer of a corporation has been successful in the defense of any action, suit or proceeding referred to award,in subsections (a) and (b) or a corporation’s boardin the defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorneys' fees) actually and reasonably incurred by him or her in connection therewith; (ii) indemnification provided for by Section 145 shall not be deemed exclusive of any other rights to which the indemnified party may be

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entitled; and (iii) the corporation may purchase and maintain insurance on behalf of any present or former director, officer, employee or agent of the corporation or any person who at the request of the corporation was serving in such capacity for another entity against any liability asserted against such person and incurred by him or her in any such capacity or arising out of his or her status as such, whether or not the corporation would have the power to indemnify him or her against such liabilities under Section 145.

        Our certificate of incorporation (Exhibit 3.1 hereto and any amendments thereto) provides for the indemnification of directors to grant, indemnity tothe fullest extent permissible under Delaware General Corporation Law. Article VIII of our Bylaws (Exhibit 3.2 hereto) provides indemnification of our directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities including reimbursement for expenses incurred arising under the Securities Act of 1933. Our amended and restated certificate of incorporation, as amended, and our Bylaws permit indemnification of directors, officers, employees and other agents to the maximum extent permitted by the Delaware law.General Corporation Law. In addition, we have entered into Indemnification Agreementsindemnification agreements with each of our directors and officers, and directors. We alsowe maintain aninsurance policies insuring our directors and officers against certain liabilities that they may incur in their capacity as officers and directors liability insurance policy.  These indemnification provisions may be sufficiently broadof our company.

        See also the undertakings set out in response to permit indemnification of the Registrant’s officers, directors and other corporate agents for liabilities (including reimbursement of expenses incurred) arising under the Securities Act of 1933.Item 17 herein.

The foregoing may reduce the likelihood of a derivative litigation against the registrant’s directors and executive officers and may discourage or deter stockholders or management from suing directors or executive officers for breaches of their duty of care, even though such actions, if successful, might otherwise benefit the registrant and its stockholders.

The underwriting agreement that we may enter into, Exhibit 1.1 to this Registration Statement, will provide for indemnification by any underwriters of the registrant, its directors, its officers who sign the registration statement and its controlling persons for some liabilities, including liabilities arising under the Securities Act.

ITEM Item 16.    EXHIBITS.Exhibits

Exhibits:

Exhibit
Number

Description

1.1

Form of Underwriting Agreement*

4.1

Rights Agreement dated April 24, 2001 by and between AXT, Inc. and ComputerShare Trust Company, Inc. (1)

5.1

Opinion of DLA Piper Rudnick Gray Cary US LLP

23.1

Consent of DLA Piper Rudnick Gray Cary US LLP (contained in Exhibit 5.1)

23.2

Consent of Burr, Pilger & Mayer LLP, Independent Registered Public Accounting Firm

23.3

Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm

24

Power of Attorney (contained in the signature page hereof)


*

If applicable, to be filed by amendment or as an exhibit to a Current Report on Form 8-K and incorporated herein by reference.

(1)

Incorporated by reference to exhibit 4.2 filed with the SEC in our Form 8-K on May 30, 2001.

        A list of exhibits filed herewith is contained in the exhibit index that immediately precedes such exhibits and is incorporated herein by reference.

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ITEM Item 17.    UNDERTAKINGS.Undertakings

(A)

(a)
The undersigned registrant hereby undertakes:



(1)
To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:



(i)
To include any prospectus required by sectionSection 10(a)(3) of the Securities Act of 1933;



(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information in the registration statement.
To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the CommissionSEC pursuant to Rule 424(b) (§ 230.424(b) of this chapter) if, in the aggregate, the changes in volume and price represent no more than a 20%20 percent change in the maximum aggregate offering price set forth in the “Calculation"Calculation of Registration Fee”Fee" table in the effective registration statement;

and

(iii)
To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;



provided, howeverProvided, however, , that paragraphs (a)(1)(i) and (a)(1)(ii) of this section do not apply if the registration statement is on Form S-3 (§239.13 of this chapter), and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the CommissionSEC by the registrant pursuant to sectionSection 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement; and

Provided, however, that Paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the registration statement is on Form S-3 (§239.13 of this chapter) or Form F-3 (§239.33 of this chapter) and the information required to be included in a posteffective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to section 13 or sectionSection 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) (§230.424(b) of this chapter) that is part of the registration statement.

(2)
That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the

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      securities offered therein, and the offering of such securities at that time shall be deemed to be the initialbona fide offering thereof.

    (3)
    To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

    (5)

    (4)
    That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:



    (i)
    If the registrant is relying on Rule 430B, (§230.430B of this chapter):



    (A)
    Each prospectus filed by the registrant pursuant to Rule 424(b)(3) (§230.424(b)(3) of this chapter) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and



    (B)
    Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) (§230.424(b)(2), (b)(5), or (b)(7) of this chapter) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) (§230.415(a)(1)(i), (vii), or (x) of this chapter) for the purpose of providing the information required by sectionSection 10(a) of the Securities Act of 1933 shall be deemed to be part of and

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included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initialbona fide offering thereof.Provided,however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to suchthe effective date; or



(ii)
If the registrant is subject to Rule 430C, (§230.430C of this chapter), each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, (§230.430A of this chapter), shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness.Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.

(6)

(5)
That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities:

Thesecurities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the

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      following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer orand sell such securities to such purchaser:

      (i)
      Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424 (§230.424 of this chapter);

      424;

      (ii)
      Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;



      (iii)
      The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and



      (iv)
      Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

      (B) That,

(b)
The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the Registrant’sregistrant's annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’splan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initialbona fide offering thereof.

(C)

(c)
Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the SEC this form ofSecurities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against thesesuch liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding), is asserted by asuch director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

(d)
The undersigned registrant hereby undertakes that:

(1)
For purposes of determining any liability under the Securities Act of 1933, the information omitted from the form of prospectus filed as part of this issue.registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time it was declared effective.

(2)
For the purpose of determining any liability under the Securities Act of 1933, each post-effective amendment that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(e)
The undersigned registrant hereby undertakes to file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the SEC under Section 305(b)(2) of the Trust Indenture Act.

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SIGNATURES

        

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statementregistration statement on Form S-3 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Fremont, State of California, on June 29, 2006.July 27, 2011.

AXT, INC.

AXT, INC.



By:



/s/ PHILIP C. S. YIN

Philip C.S. Yin

RAYMOND A. LOW


Raymond A. Low
Chief ExecutiveFinancial Officer

and Corporate Secretary
(Principal Financial Officer)


POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Philip C.S. YinMorris S. Young and Wilson W. Cheung,Raymond A. Low, and each of them individually, as his or her true and lawful attorneys-in-fact and agents with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities to sign the Registration Statement filed herewith and any andor all amendments to said Registration Statement (including post-effective amendments)amendments and registration statements filed pursuant to this Registration Statement on Form S-3,Rule 462(b) under the Securities Act of 1933, as amended, and otherwise), and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission granting unto said attorneys-in-fact and agents and each of them,the full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith,and about the foregoing, as fullyfull to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or eitherany of them, or theirhis or hisher substitute, or substitutes, may lawfully do or cause to be done by virtue hereof.thereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statementregistration statement has been signed by the following persons in the capacities and on the dates indicated:

Name

Signature
Title

Date








/s/ PHILIP C.MORRIS S. YIN

YOUNG

Morris S. Young

Chief Executive Officer, and Director (Principal Executive

Officer)

June 29, 2006

July 27, 2011

Philip C.S. Yin


/s/ RAYMOND A. LOW

Raymond A. Low


Officer)
Chief Financial Officer and MemberCorporate Secretary (Principal Financial Officer and Principal Accounting Officer)




July 27, 2011


/s/ JESSE CHEN

Jesse Chen


Chairman of the Board of directors

Directors




July 27, 2011

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Signature
TitleDate







/s/ WILSON W. CHEUNG

Chief Financial Officer and Corporate

June 29, 2006

Wilson W. Cheung

Secretary (Principal Financial and Accounting Officer)

/s/ JESSE CHEN

Director and Chairman of the Board

June 28, 2006

Jesse Chen

/s/ LEONARD LEBLANC

Director

June 28, 2006

Leonard LeBlanc

/s/ DAVID C. CHANG

Director

June 29, 2006



David C. Chang

Director

July 27, 2011


/s/ LEONARD LEBLANC

Leonard LeBlanc



Director




July 27, 2011


/s/ MORRIS S. YOUNG

NAI-YU PAI

Nai-yu Pai


Chief Technology Officer and
Director


June 29, 2006

Morris S. Young



July 27, 2011


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II-4Exhibit Index


Exhibit Number Description
 1.1 Form of Underwriting Agreement*

 

3.1

(1)

Restated Certificate of Incorporation

 

3.2

(2)

Certificate of Amendment of Certificate of Incorporation

 

3.3

(3)

Certificate of Amendment to the Restated Certificate of Incorporation

 

3.4

(4)

Certificate of Designation, Preferences and Rights of Series A Preferred Stock

 

3.5

(5)

Second Amended and Restated By Laws

 

3.6

(6)

Amended and Restated Section 5.1 of Article V of the Second Amended and Restated Bylaws of AXT, Inc.

 

3.7

(7)

Certificate of Amendment to By Laws

 

4.1

(8)

Rights Agreement dated April 24, 2001 by and between AXT, Inc. and ComputerShare Trust Company, Inc.

 

4.2

 

Form of Senior Indenture

 

4.3

 

Form of Subordinated Indenture

 

4.4

 

Form of Subordinated Debt Security (included in Exhibit 4.3)

 

4.5

 

Form of Senior Debt Security (included in Exhibit 4.2)

 

4.6

 

Form of Certificate of Designation*

 

4.7

 

Form of Preferred Stock Certificate*

 

4.8

 

Form of Deposit Agreement*

 

4.9

 

Form of Depositary Receipt (included in Exhibit 4.8)

 

4.10

 

Form of Warrant Agreement*

 

4.11

 

Form of Warrant Certificate*

 

4.12

 

Form of Unit Agreement*

 

5.1

 

Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation

 

12.1

 

Computation of Ratio of Earnings to Fixed Charges

 

23.1

 

Consent of Independent Registered Public Accounting Firm

 

23.2

 

Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation (included in Exhibit 5.1)

 

24.1

 

Power of Attorney (see signature page)

 

25.1

 

Form T-1 Statement of Eligibility of Trustee for Senior Indenture under the Trust Indenture Act of 1939*

 

25.2

 

Form T-1 Statement of Eligibility of Trustee for Subordinated Indenture under the Trust Indenture Act of 1939*

*
To be filed by amendment or as an exhibit to a report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and incorporated herein by reference.

(1)
Incorporated by reference to exhibit 3.1 to registrant's Form 10-K filed with the SEC on March 31, 1999.

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(2)
Incorporated by reference to exhibit 3.1 to registrant's Form 10-Q filed with the SEC on August 14, 2000.

(3)
Incorporated by reference to exhibit 3.4 to registrant's Form 10-Q filed with SEC on August 5, 2004.

(4)
Incorporated by reference to exhibit 3.1 to registrant's Form 8-K filed with the SEC on June 14, 1999.

(5)
Incorporated by reference to exhibit 3.4 to registrant's Form 8-K filed with the SEC on May 30, 2001.

(6)
Incorporated by reference to exhibit 99.2 to registrant's Form 8-K filed with the SEC on August 1, 2007.

(7)
Incorporated by reference to exhibit 3.1 to registrant's Form 8-K filed with the SEC on October 26, 2010.

(8)
Incorporated by reference to exhibit 4.2 to registrant's Form 8-K filed with the SEC on May 30, 2001.

INDEX TO EXHIBITS

Exhibit
Number

Description

1.1

Form of Underwriting Agreement*

4.1

Rights Agreement dated April 24, 2001 by and between AXT, Inc. and ComputerShare Trust Company, Inc. (1)

5.1

Opinion of DLA Piper Rudnick Gray Cary US LLP

23.1

Consent of DLA Piper Rudnick Gray Cary US LLP (contained in Exhibit 5.1)

23.2

Consent of Burr, Pilger & Mayer LLP, Independent Registered Public Accounting Firm

23.3

Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm

24

Power of Attorney (contained in the signature page hereof)


*

If applicable, to be filed by amendment or as an exhibit to a Current Report on Form 8-K and incorporated herein by reference.

(1)

Incorporated by reference to exhibit 4.2 filed with the SEC in our Form 8-K on May 30, 2001.