AEHR Aehr Test Systems

Headquartered in Fremont, California, Aehr Test Systems is a worldwide provider of test systems for burning-in and testing logic, optical and memory integrated circuits and has over 2,500 systems installed worldwide. Increased quality and reliability needs of the Automotive and Mobility integrated circuit markets are driving additional test requirements, incremental capacity needs, and new opportunities for Aehr Test products in package, wafer level, and singulated die/module level test. Aehr Test has developed and introduced several innovative products, including the ABTSTM and FOX-PTM families of test and burn-in systems and FOX WaferPakTM Aligner, FOX-XP WaferPak Contactor, FOX DiePak® Carrier and FOX DiePak Loader. The ABTS system is used in production and qualification testing of packaged parts for both lower power and higher power logic devices as well as all common types of memory devices. The FOX-XP and FOX-NP systems are full wafer contact and singulated die/module test and burn-in systems used for burn-in and functional test of complex devices, such as leading-edge memories, digital signal processors, microprocessors, microcontrollers, systems-on-a-chip, and integrated optical devices. The FOX-CP system is a new low-cost single-wafer compact test and reliability verification solution for logic, memory and photonic devices and the newest addition to the FOX-P product family. The WaferPak contactor contains a unique full wafer probe card capable of testing wafers up to 300mm that enables IC manufacturers to perform test and burn-in of full wafers on Aehr Test FOX systems. The DiePak Carrier is a reusable, temporary package that enables IC manufacturers to perform cost-effective final test and burn-in of both bare die and modules.

Company profile

Gayn Erickson
Fiscal year end
IRS number

AEHR stock data


Investment data

Data from SEC filings
Securities sold
Number of investors


13 Apr 21
2 Aug 21
31 May 22
Quarter (USD)
Feb 21 Nov 20 Aug 20 May 20
Cost of revenue
Operating income
Operating margin
Net income
Net profit margin
Cash on hand
Change in cash
Diluted EPS
Annual (USD)
May 20 May 19 May 18 May 17
Cost of revenue
Operating income
Operating margin
Net income
Net profit margin
Cash on hand
Change in cash
Diluted EPS

Financial data from company earnings reports.

Cash burn rate (estimated) Burn method: Change in cash Burn method: Operating income/loss Burn method: FCF (opex + capex)
Last Q Avg 4Q Last Q Avg 4Q Last Q Avg 4Q
Cash on hand (at last report) 4.82M 4.82M 4.82M 4.82M 4.82M 4.82M
Cash burn (monthly) (positive/no burn) 26.67K 233.67K 643.75K 85.33K 324.58K
Cash used (since last report) n/a 138.21K 1.21M 3.34M 442.27K 1.68M
Cash remaining n/a 4.68M 3.61M 1.48M 4.38M 3.14M
Runway (months of cash) n/a 175.5 15.4 2.3 51.3 9.7

Beta Read what these cash burn values mean

Date Owner Security Transaction Code Indirect 10b5-1 $Price #Shares $Value #Remaining
22 Jul 21 Spink Kenneth B. Common Stock Sell Dispose S No No 8.0781 6,500 52.51K 114,054
21 Jul 21 Posedel Rhea J Common Stock Sell Dispose S Yes No 5.9246 100,000 592.46K 847,055
21 Jul 21 Geoffrey Gates Scott Common Stock Sell Dispose S Yes No 7.16 20,000 143.2K 250,000
21 Jul 21 Geoffrey Gates Scott Common Stock Sell Dispose S No No 6.13 3,000 18.39K 352,594
21 Jul 21 Oliphant Laura Common Stock Sell Dispose S Yes No 5.75 18,456 106.12K 30,376
19 Jul 21 Richmond Donald P. Ii Common Stock Option exercise Aquire M No No 2.1 10,000 21K 134,265
19 Jul 21 Richmond Donald P. Ii Common Stock Option exercise Aquire M No No 2.71 15,000 40.65K 124,265
19 Jul 21 Richmond Donald P. Ii Incentive Stock Option Common Stock Option exercise Dispose M No No 2.71 15,000 40.65K 0
19 Jul 21 Richmond Donald P. Ii Incentive Stock Option Common Stock Option exercise Dispose M No No 2.1 10,000 21K 0

Data for the last complete 13F reporting period. To see the most recent changes to ownership, click the ownership history button above.

20.6% owned by funds/institutions
13F holders
Current Prev Q Change
Total holders 22 22
Opened positions 4 5 -20.0%
Closed positions 4 7 -42.9%
Increased positions 7 7
Reduced positions 4 4
13F shares
Current Prev Q Change
Total value 12.23M 12.6M -3.0%
Total shares 4.85M 4.98M -2.6%
Total puts 0 0
Total calls 0 0
Total put/call ratio
Largest owners
Shares Value Change
AWM Investment 1.9M $4.78M 0.0%
Royce & Associates 1.05M $2.64M 0.0%
Vanguard 1M $2.53M +9.3%
Janney Montgomery Scott 178K $449K -8.1%
Geode Capital Management 147.9K $372K +30.9%
Raymond James Financial Services Advisors 120.3K $303K +0.5%
Advisor 104.25K $263K -15.3%
BLK Blackrock 80.71K $203K +10.9%
Dimensional Fund Advisors 70.41K $177K +430.3%
Heritage Investors Management 58.1K $146K 0.0%
Largest transactions
Shares Bought/sold Change
Manatuck Hill Partners 0 -128.2K EXIT
Vanguard 1M +85.52K +9.3%
Millennium Management 0 -75.26K EXIT
Dimensional Fund Advisors 70.41K +57.13K +430.3%
Renaissance Technologies 0 -40.6K EXIT
GS Goldman Sachs 35.36K +35.36K NEW
Geode Capital Management 147.9K +34.93K +30.9%
Advisor 104.25K -18.8K -15.3%
Janney Montgomery Scott 178K -15.6K -8.1%

Financial report summary

  • The effects of the COVID-19 pandemic have disrupted, and may continue to significantly disrupt, our operations, including our ability to manufacture and supply products and perform research and development activities, and our customers’ usage of our products, all of which have had and are expected to continue to have a material and adverse effect on our business, future revenues and financial condition. We are unable to predict the extent to which the pandemic and related impacts will continue to adversely impact our business operations, financial performance, results of operations and the achievement of our strategic objectives.
  • We have incurred indebtedness under the CARES Act which may be subject to audit, may not be forgivable and may eventually have to be repaid. Any repayment of such indebtedness may limit the funds available to us and may restrict our flexibility in operating our business or otherwise adversely affect our results of operations.
  • We generate a large portion of our sales from a small number of customers. If we were to lose one or more of our large customers, operating results could suffer dramatically.
  • The semiconductor equipment industry is intensely competitive. In each of the markets we serve, we face competition from established competitors and potential new entrants, many of which have greater financial, engineering, manufacturing and marketing resources than us.
  • We rely on increasing market acceptance for our FOX system, and we may not be successful in attracting new customers or maintaining our existing customers.
  • We rely on continued market acceptance of our ABTS system and our ability to complete certain enhancements.
  • A substantial portion of our net sales is generated by relatively small volume, high value transactions.
  • We may experience increased costs associated with new product introductions.
  • We sell our products and services worldwide, and our business is subject to risks inherent in conducting business activities in geographic regions outside of the United States.
  • We purchase materials from suppliers worldwide, which subjects the Company to increased risk.
  • The Company is exposed to cybersecurity threats or incidents.
  • Our industry is subject to rapid technological change and our ability to remain competitive depends on our ability to introduce new products in a timely manner.
  • Our dependence on subcontractors and sole source suppliers may prevent us from delivering our products on a timely basis and expose us to intellectual property infringement.
  • Periodic economic and semiconductor industry downturns could negatively affect our business, results of operations and financial condition.
  • Future changes in semiconductor technologies may make our products obsolete.
  • If we are not able to reduce our operating expenses sufficiently during periods of weak revenue, or if we utilize significant amounts of cash to support operating losses, we may erode our cash resources and may not have sufficient cash to operate our business.
  • Our stock price may fluctuate.
  • We depend on our key personnel and our success depends on our ability to attract and retain talented employees.
  • We may be subject to litigation relating to intellectual property infringement which would be time-consuming, expensive and a distraction from our business.
  • While we believe we have complied with all applicable environmental laws, our failure to do so could adversely affect our business as a result of having to pay substantial amounts in damages or fees.
  • If we fail to maintain effective internal control over financial reporting in the future, the accuracy and timing of our financial reporting may be adversely affected.
  • Our common stock may be delisted from The NASDAQ Capital Market if we cannot maintain compliance with NASDAQ’s continued listing requirements.
Content analysis
H.S. sophomore Avg
New words: criteria, Peso, Philippine, reliability, replacement, settle, submission, voluntary, withheld
Removed: applicable, denominated, designed, hedge, incur, invested, lengthy, order, restructuring, ultimate