at 590 E. Middlefield Road, Mountain View, California 94043. These communications will be reviewed by the Lead Independent Director, who will determine whether they should be presented to the Board. The purpose of this screening is to avoid having the Board consider irrelevant or inappropriate communications (such as advertisements, solicitations and hostile communications). The screening procedures have been approved by a majority of the independent members of the Board. All communications directed to the Audit Committee in accordance with the Company's "Open Door Policy for Reporting Complaints Regarding Accounting and Auditing Matters" (the "Omnicell Open Door Policy") that relate to questionable accounting or auditing matters involving the Company will be promptly and directly forwarded to the Audit Committee. The Omnicell Open Door Policy is available in the "Corporate Governance" section on the Company's corporate website atwww.omnicell.com, under "Investor Relations."

Code of Ethics

        Omnicell has adopted the Omnicell Code of Conduct, a code of ethics that applies to all officers, directors and employees of the Company. The Omnicell Code of Conduct is available in the "Corporate Governance" section on the Company's corporate website atwww.omnicell.com, under "Investor Relations." If the Company makes any substantive amendments to its Code of Conduct or grants any waiver from a provision of the Code to any executive officer or director, it will promptly disclose the nature of the amendment or waiver on our website.

Corporate Governance Guidelines

        The Board has reaffirmed the governance practices followed by the Company by readopting the Corporate Governance Guidelines to assure that the Board will have the necessary authority and practices in place to review and evaluate the Company's business operations as needed and to make decisions that are independent of the Company's management. The guidelines are also intended to align the interests of directors and management with those of the Company's stockholders. The Corporate Governance Guidelines set forth the practices the Board intends to follow with respect to board composition and selection, board meetings and involvement of senior management, Chief Executive Officer performance evaluation and succession planning, and board committees and compensation. The Corporate Governance Guidelines were adopted by the Board to, among other things, reflect changes to the NASDAQNasdaq listing standards and SEC rules adopted to implement provisions of the Sarbanes-Oxley Act of 2002. The Corporate Governance Guidelines, as well as the charters for each committee of the Board, are available in the "Corporate Governance" section on the Company's corporate website atwww.omnicell.com, under "Investor Relations."

PROPOSAL NO. 2

APPROVAL OF 2009 EQUITY INCENTIVE PLAN, AMENDED

Overview

        On March 27, our Board of Directors amended the Omnicell, Inc. 2009 Equity Incentive Plan, as amended (the "2009 Plan"), subject to stockholder approval, to among other things, increase the number of shares of common stock authorized for issuance under the 2009 Plan by 2,700,000 shares. We refer to the 2009 Plan, as amended by the Board of Directors on March 27, 2018 as the "Amended 2009 Plan" throughout this proxy statement. Awards granted pursuant to the terms of the 2009 Plan prior to this amendment shall continue to be governed by the terms of the 2009 Plan and not pursuant to this Amended 2009 Plan.

        A description of the material terms of the Amended 2009 Plan are summarized below. The key differences between the terms of the 2009 Plan and the Amended 2009 Plan are as follows:

•

The Amended 2009 Plan provides that an additional 2,700,000 shares may be issued pursuant to stock awards granted under the Amended 2009 Plan.



•

On or after March 27, 2018, the number of shares available for issuance under the Amended 2009 Plan will be reduced by one share for each share subject to a stock option or stock appreciation right and by 2.38 shares for each share subject to any other type of stock award issued pursuant to the Amended 2009 Plan, and such shares will return to the share reserve at the same rates upon cancellation or other forfeiture of such awards or shares.



•

The Amended 2009 Plan provides generally that dividends and dividend equivalents with respect to shares subject to a stock award will be subject to the same restrictions, including vesting restrictions, as the underlying stock award.



•

The Amended 2009 Plan eliminates references to Section 162(m) of the Internal Revenue Code of 1986, as amended (the "Code"), and the Amended 2009 Plan eliminates individual grant limits that applied under the 2009 Plan to awards that were intended to comply with the exemption for "performance-based compensation" under Code Section 162(m).



•

The Amended 2009 Plan eliminates references to performance cash awards, because those awards were included in the 2009 Plan in order to allow the Company to comply with the exemption for "performance-based compensation" under Section 162(m), which has been repealed, effective for taxable years beginning after December 31, 2017.

        Our Board of Directors is requesting stockholder approval of the Amended 2009 Plan to increase the number of shares of common stock authorized for issuance under the 2009 Plan by 2,700,000 shares. Our Board of Directors believes that the Amended 2009 Plan is an integral part of our long-term compensation philosophy and the Amended 2009 Plan is necessary to continue providing the appropriate levels and types of equity compensation for our employees.

Why We Are Asking Our Stockholders to Approve the Amended 2009 Plan

        As of March 1, 2018, approximately 754,023 shares were available for future issuance under the 2009 Plan, excluding the shares reserved for issuance upon exercise of outstanding options or vesting of restricted stock units and performance stock units (and without giving effect to the approval of the Amended 2009 Plan). Without replenishment, we believe such number of shares may be insufficient to meet our anticipated employee recruiting and retention needs beyond the third quarter of 2018.

        Our Amended 2009 Plan permits for a variety of equity awards, including stock options, stock appreciation rights and "Full Value Awards", which consist of restricted stock, restricted stock units, performance stock awards and other stock awards. We believe that Full Value Awards help us remain

competitive with the peer group of companies with which we compete for talent and this element of compensation is part of our competitive compensation package. In addition, we believe that Full Value Awards encourage employee retention during economic or market cycles when our stock price declines, because such awards retain a large portion of their value even if the stock price declines after the date of grant. An approval of an additional 2,700,000 shares to our 2009 Plan does not provide us with the right to issue an additional 2,700,000 Full Value Awards. As originally adopted, the 2009 Plan provided that the issuance of one share issued under a Full Value Award would reduce or deplete the number of shares of common stock available for future equity awards under the 2009 Plan by 1.4 shares. When we amended the 2009 Plan in December 2010, in order to balance our request for additional shares at that time with potential stockholder dilution concerns, we amended the 2009 Plan to provide for a depletion of the share reserve more rapidly—that is, at 1.8 shares for each share of common stock issued pursuant to a Full Value Award granted on and after October 1, 2010. Then again when we amended the 2009 Plan in 2015, we amended the 2009 Plan to provide for a depletion of the share reserve even more rapidly—that is, at 2.15 shares for each share of common stock issued pursuant to a Full Value Award granted on and after December 31, 2014. In order to balance this most recent request for additional shares with potential stockholder dilution concerns, we yet again amended the 2009 Plan to provide for a depletion of the share reserve even more rapidly—that is, at 2.38 shares for each share of common stock issued pursuant to a Full Value Award granted on and after March 27, 2018. Awards granted as stock options and stock appreciation rights would continue to reduce the number of shares available for issuance under the Amended 2009 Plan on a one-for-one basis because stock options and stock appreciation rights are viewed as transferring less value from the stockholders to our employees, directors and consultants. We expect to grant both stock options and Full Value Awards in the future.

        In connection with our stock-based compensation programs, we seek to balance the need to maintain a talented resource pool in a highly competitive business with efforts to closely monitor our stock award "burn rate," which we define as the number of shares subject to stock awards granted in a fiscal year divided by the weighted average common shares outstanding for that fiscal year.

Equity Awards Are an Integral Component of Our Compensation Program

        Equity awards have been historically and, we believe, will continue to be an integral component of our overall compensation program for all of our employees, officers and directors. Approval of the Amended 2009 Plan will allow us to continue to grant stock options and other equity awards at levels our Compensation Committee determines to be appropriate in order to attract new employees and directors, retain our existing employees and to provide incentives for such persons to exert maximum efforts for the Company's success and ultimately increase stockholder value. In addition, to the extent that we expand our business or product lines through the acquisition of other businesses, we anticipate that we would need to provide competitive equity compensation packages to any newly acquired employees. The Amended 2009 Plan allows the Company to continue to utilize a broad array of equity incentives with flexibility in designing such incentives, including traditional option grants, stock appreciation rights, restricted stock awards, restricted stock unit awards and performance stock awards.

        At March 1, 2018, stock awards covering an aggregate of 4,505,784 shares were outstanding under our 2009 Plan. In addition, 754,023 shares remained available for future grant under the 2009 Plan as of such date.

        The following table provides certain additional information regarding our equity incentive program, excluding our employee stock purchase plan.

The Size of Our Share Reserve Increase Request Is Reasonable

        If our request to increase the share reserve of the Amended 2009 Plan by 2,700,000 shares is approved, we expect to have approximately 3,454,023 shares available for grant after our Annual Meeting (based on shares available as of March 1, 2018), which we anticipate being a sufficient amount of equity for attracting, retaining, and motivating employees through the end of 2019. We anticipate seeking approval from our stockholders in 2019 of an additional increase to the share reserve under the Amended 2009 Plan.

        The size of our request is also reasonable in light of the equity granted to our employees and directors over the last three years.

We Manage Our Equity Incentive Award Use Carefully, and Dilution Is Reasonable

        We continue to believe that equity awards such as stock options and other types of stock awards are a vital part of our overall compensation program. Our compensation philosophy reflects broad-based eligibility for equity incentive awards, and we grant awards to a large portion of our employees. However, we recognize that equity awards dilute existing stockholders, and, therefore, we must responsibly manage the growth of our equity compensation program. We are committed to effectively monitoring our equity compensation share reserve, including our "burn rate," to ensure that we maximize stockholders' value by granting the appropriate number of equity incentive awards necessary to attract, reward, and retain employees.

        The following table shows our historical dilution and burn rate percentages for fiscal years 2015, 2016 and 2017.

Burn Rate

        The following table provides detailed information regarding the activity related to our equity incentive plans for fiscal years 2015, 2016 and 2017.

        The approval of the Amended 2009 Plan will allow us to continue to grant stock options and Full Value Awards, and would allow us to grant other awards described below, at levels determined appropriate by our Board of Directors or its delegate. The Amended 2009 Plan will continue to provide us with flexibility in designing equity incentives in an environment where a number of companies have moved from traditional option grants to other stock-based awards, including stock appreciation rights, restricted stock awards, restricted stock unit awards, and performance stock awards. The Amended 2009 Plan allows us to utilize multiple types of equity incentives in order to secure and retain the services of our employees, consultants and directors, and to provide long-term incentives that align the interests of our employees, consultants and directors with the interests of our stockholders.

Important Aspects of Our Amended 2009 Plan Designed to Protect Our Stockholders' Interests

        The Amended 2009 Plan includes certain provisions that are designed to protect our stockholders' interests and to reflect corporate governance best practices including:

•

Stockholder approval is required for additional shares.  The Amended 2009 Plan does not contain an annual "evergreen" provision. Thus, stockholder approval is required each time we need to increase the share reserve allowing our stockholders the ability to have a say on our equity compensation programs.



•

Repricing is not allowed.  The Amended 2009 Plan prohibits the repricing of outstanding equity awards and the cancellation of any outstanding equity awards that have an exercise price or strike price greater than the current fair market value of our common stock in exchange for cash or other stock awards under the Amended 2009 Plan.



•

Share counting provisions.  The share reserve under the Amended 2009 Plan is reduced one share for each share of common stock issued pursuant to an option or stock appreciation right and 2.38 shares for each share of common stock issued pursuant to a Full Value Award granted on and after March 27, 2018. This helps to ensure that management and our Compensation Committee are using the share reserve effectively and with regard to the value of each type of equity award.



•

Submission of amendments to Amended 2009 Plan to stockholders.  The Amended 2009 Plan requires stockholder approval for material amendments to the Amended 2009 Plan, including as noted above, any increase in the number of shares reserved for issuance under the Amended 2009 Plan.



•

Flexibility in designing equity compensation scheme.  The Amended 2009 Plan allows us to provide a broad array of equity incentives, including traditional option grants, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance stock awards and other stock awards. By providing this flexibility we can quickly and effectively react to trends in

compensation practices and continue to offer competitive compensation arrangements to attract and retain the talent necessary for the success of our business.

•

Broad-based eligibility for equity awards.  We grant equity awards to a large portion of our employees. By doing so, we tie our employees' interests with stockholder interests and motivate our employees to act as owners of the business.

General 2009 Plan Information

        The 2009 Plan was the successor to and continuation of the 1999 Equity Incentive Plan, 2003 Equity Incentive Plan and 2004 Equity Incentive Plan (together the "Prior Plans"). All outstanding stock awards granted under the Prior Plans continue to be subject to the terms and conditions as set forth in the agreements evidencing such stock awards and the terms of the Prior Plans, but no additional awards have been granted under the Prior Plans since May 19, 2009.

        As of March 1, 2018, the total number of shares of the Company's common stock reserved for issuance under the 2009 Plan is 10,400,000 sharesplus the number of shares subject to stock awards outstanding under the Prior Plans that terminate prior to exercise and would otherwise be returned to the share reserves under the Prior Plans. Of this number, approximately 754,023 shares remained available for future issuance under the 2009 Plan as of March 1, 2018. As of March 1, 2018, stock options to purchase approximately 3,662,692 shares were outstanding and Full Value Awards covering an aggregate of 879,153 were outstanding under the 2009 Plan and the Prior Plans. The weighted-average exercise price of all stock options outstanding as of March 1, 2018 was $34.33, and the weighted-average remaining term of such stock options was 7.85 years. A total of 38,800,091 shares of our common stock were outstanding as of March 1, 2018. As of March 1, 2018, the closing price of our common stock as reported on the NASDAQ Global Select Market was $42.45 per share.

Description of the Amended 2009 Plan

        The material features of the Amended 2009 Plan are outlined below. This summary is qualified in its entirety by reference to the complete text of the Amended 2009 Plan. Stockholders are urged to read the actual text of the Amended 2009 Plan in its entirety, which is appended to this proxy statement asAppendix A and may be accessed from the SEC's website at www.sec.gov.

Background and Purpose

        The Amended 2009 Plan provides for the grant of stock options, restricted stock, restricted stock units, stock appreciation rights, other stock awards, and performance awards that may be settled in cash, stock or other property.

        The purpose of the Amended 2009 Plan is to secure and retain the services of employees, directors, and consultants, to provide a means by which such persons may be given an opportunity to benefit from increases in the value of the Company's common stock, to assist the Company in recruiting new employees and directors, retaining the services of current employees and directors, and to provide incentives for such persons to exert maximum efforts for the Company's success.

Shares Available for Awards

        After giving effect to the approval of Proposal No. 2, the total number of shares of the Company's common stock reserved for issuance under the Amended 2009 Plan would be 13,100,000 as of March 1, 2018. This share reserve consists of (a) 10,400,000 shares currently reserved for issuance under the Amended 2009 Plan, plus (b) an additional 2,700,000 shares subject to approval of the stockholders at the Annual Meeting. In addition, the share reserve will be increased by the number of shares subject to stock awards outstanding under the Prior Plans that terminate prior to exercise and would otherwise be

returned to the share reserves under the Prior Plans less one share for each share of common stock issued pursuant to an option or stock appreciation right granted after December 31, 2008 under the Prior Plans with respect to which the strike price is at least 100% of the fair market value of the underlying common stock on the date of grant and 1.4 shares for each share of stock issued pursuant to an award other than an option or stock appreciation right granted after December 31, 2008 under the Prior Plans.

        This aggregate number is referred to as the "Share Reserve." The number of shares available for issuance under the Amended 2009 Plan is reduced by (i) one share for each share of common stock issued pursuant to an option or stock appreciation right with a strike price of at least 100% of the fair market value of the underlying common stock on the date of grant; (ii) prior to October 1, 2010, 1.4 shares for each share of common stock issued pursuant to restricted stock, restricted stock units, performance stock awards, or other stock awards granted under the 2009 Plan; (iii) on or after October 1, 2010 but prior to December 31, 2014, 1.8 shares for each share of common stock issued pursuant to restricted stock, restricted stock units, performance stock awards, or other stock awards granted under the 2009 Plan; (iv) on or after December 31, 2014 but prior to March 27, 2018, 2.15 shares for each share of common stock issued pursuant to restricted stock, restricted stock units, performance stock awards, or other stock awards granted under the 2009 Plan; and (v) on or after March 27, 2018, 2.38 shares for each share of common stock issued pursuant to restricted stock, restricted stock units, performance stock awards, or other stock awards granted under the Amended 2009 Plan.

        If a stock award expires or otherwise terminates without having been exercised in full or is settled in cash, such expiration, termination or settlement will not reduce (or otherwise offset) the number of shares of the common stock that may be issued pursuant to the Amended 2009 Plan. If any shares of common stock issued pursuant to a stock award are forfeited back to the Company because of the failure to meet a contingency or condition required to vest such shares in the participant, then the shares which are forfeited will revert to and again become available for issuance under the Amended 2009 Plan. Any shares withheld or reacquired by the Company pursuant to the exercise of an option or stock appreciation right under its withholding obligations or as consideration for the exercise of an option or stock appreciation right will not again become available for issuance under the Amended 2009 Plan. In addition, if the exercise price of any award is satisfied by the tender of shares of common stock to us (whether by actual delivery or attestation), the shares tendered will not again be available for issuance under the Amended 2009 Plan.

        To the extent there is a share of common stock issued pursuant to (i) a stock award granted under the 2009 Plan or the Amended 2009 Plan or (ii) an award other than an option or stock appreciation right granted under the Prior Plans, and such share of common stock again becomes available for issuance under the Amended 2009 Plan, then on or after March 27, 2018, the number of shares of common stock available for issuance under the Amended 2009 Plan will increase by 2.38 shares.

Eligibility

        Incentive stock options may be granted under the Amended 2009 Plan only to the Company's employees and employees of Omnicell's affiliates. The Company's employees, consultants and directors and employees and consultants of Omnicell's affiliates are eligible to receive all other types of awards under the Amended 2009 Plan. As of March 1, 2018, approximately 2,350 employees, directors and consultants were eligible to participate in the Amended 2009 Plan.

Administration

        The Amended 2009 Plan is administered by our Board of Directors, which may in turn delegate authority to administer the plan to a committee. Our Board of Directors has delegated administration

of the Amended 2009 Plan to the Compensation Committee. Subject to the terms of the Amended 2009 Plan, the Compensation Committee determines recipients, the numbers and types of stock awards to be granted, the terms and conditions of the stock awards, including the period of their exercisability and vesting. Subject to the limitations set forth below, the Compensation Committee also determines the fair market value applicable to a stock award and the exercise price of options granted under the Amended 2009 Plan.

Repricing

        The Amended 2009 Plan expressly provides that, without the approval of the stockholders within 12 months prior to such event, the Compensation Committee shall not have the authority to reduce the exercise price of any outstanding stock awards under the plan or cancel any outstanding stock awards that have an exercise price or strike price greater than the current fair market value of the common stock in exchange for cash or other stock awards under the Amended 2009 Plan.

Vesting

        Shares subject to awards under the Amended 2009 Plan generally vest in accordance with the stock award agreement for such stock award.

Stock Options

        If stock options are granted, they are granted pursuant to stock option agreements. The Amended 2009 Plan permits the grant of options that qualify as incentive stock options, or ISOs, and nonstatutory stock options, or NSOs. Generally, the exercise price for an option cannot be less than 100% of the fair market value of the common stock subject to the option on the date of grant. Options granted under the Amended 2009 Plan will vest at the rate specified in the option agreement.

        In general, the term of stock options granted under the Amended 2009 Plan may not exceed ten years. Except as explicitly provided otherwise in an optionholder's award agreement, options granted under the Amended 2009 Plan generally terminate three months after termination of the participant's service unless (i) termination is due to the participant's disability, in which case the option may be exercised (to the extent the option was exercisable at the time of the termination of service) at any time within 12 months following termination; (ii) the participant dies before the participant's service has terminated, or within the period (if any) specified in the stock option agreement after termination of service for a reason other than death, in which case the option may be exercised (to the extent the option was exercisable at the time of the participant's death) within 18 months following the participant's death by the person or persons to whom the rights to such option have passed; (iii) the participant is terminated for cause in which case the option will cease to be exercisable immediately upon the participant's termination, or (iv) the option by its terms specifically provides otherwise. An option term may be extended in the event that exercise of the option following termination of service is prohibited by applicable securities laws. The amount of time allowable after termination to exercise an option may be extended if a sale of the shares received by the participant upon exercise would be in violation of the registration requirements under the Securities Act or Omnicell's insider trading policy. In such cases, the applicable period within which a participant may exercise an option after termination is extended to the time in which the exercise of the option would not be in violation of such laws or policies. In no event may an option be exercised after its expiration date.

        Acceptable forms of consideration for the purchase of Omnicell common stock issued under the Amended 2009 Plan will be determined by the Compensation Committee and may include cash, check, bank draft or money order made payable to the Company, common stock previously owned by the optionholder, payment through a broker assisted exercise or, for NSOs only, a net exercise feature, or other legal consideration approved by the Compensation Committee.

        Generally, an optionholder may not transfer a stock option other than by will or the laws of descent and distribution or a domestic relations order. However, to the extent permitted under the terms of the applicable stock option agreement, an optionholder may designate a beneficiary who may exercise the option following the optionholder's death.

Limitations

        The aggregate fair market value, determined at the time of grant, of shares of Omnicell common stock with respect to ISOs that are exercisable for the first time by an optionholder during any calendar year under all of the Company's equity compensation plans may not exceed $100,000. The options or portions of options that exceed this limit are treated as NSOs. No ISO may be granted to any person who, at the time of the grant, owns or is deemed to own stock possessing more than 10% of the Company's total combined voting power or that of any affiliate unless the following conditions are satisfied:

•

the optionexercise price must be at least 110% of the fair market value of the stock subject to the option on the date of grant; and



•

the term of any ISO award must not exceed five years from the date of grant.

        The aggregate maximum number of shares of common stock that may be issued pursuant to the exercise of ISOs will be the number of shares of common stock in the Share Reserve.

Restricted Stock Awards

        If restricted stock awards are granted, they are granted pursuant to restricted stock award agreements. A restricted stock award may be granted in consideration for cash, check, bank draft or money order payable to the Company, the recipient's past or future services performed for the Company or an affiliate of the Company, or any other form of legal consideration acceptable to the Compensation Committee. Shares of Omnicell common stock acquired under a restricted stock award may be subject to forfeiture to us in accordance with a vesting schedule to be determined by the Compensation Committee. Rights to acquire shares of Omnicell common stock under a restricted stock award may be transferred only upon such terms and conditions as are set forth in the restricted stock award agreement.

Restricted Stock Unit Awards

        If restricted stock unit awards are granted, they are granted pursuant to restricted stock unit award agreements. Payment of any purchase price may be made in any legal form acceptable to the Compensation Committee. The Company will settle a payment due to a recipient of a restricted stock unit award by delivery of shares of our common stock, by cash, by a combination of cash and stock as deemed appropriate by our Compensation Committee, or in any other form of consideration determined by the Compensation Committee and set forth in the restricted stock unit award agreement. Dividend equivalents may be credited in respect of shares of Omnicell common stock covered by a restricted stock unit award. Restricted stock unit awards may be subject to vesting in accordance with a vesting schedule to be determined by the Compensation Committee. Except as otherwise provided in the applicable restricted stock unit award agreement, restricted stock units that have not vested will be forfeited upon the participant's termination of continuous service for any reason.

Stock Appreciation Rights

        If stock appreciation rights are granted, they are granted pursuant to a stock appreciation rights agreement. Each stock appreciation right is denominated in common stock share equivalents. The

strike price of each stock appreciation right is determined by the Compensation Committee, and will in no event be less than 100% of the fair market value of the stock subject to the stock appreciation right at the time of grant. In general, the term of the stock appreciation rights granted under the Amended 2009 Plan may not exceed ten years. The Compensation Committee may also impose restrictions or conditions upon the vesting of stock appreciation rights that it deems appropriate. Stock appreciation rights may be paid in Omnicell common stock, in cash, in any combination of the two, or any other form of legal consideration approved by the Compensation Committee and contained in the stock appreciation right agreement. Stock appreciation rights will be subject to the same conditions upon termination and restrictions on transfer as stock options under the Amended 2009 Plan.

Performance Awards

        The Amended 2009 Plan provides for the grant of performance stock awards. If performance awards are granted, they will vest or be exercised based upon the attainment during a certain period of time of certain performance goals. The length of any performance period, the performance goals to be achieved during the performance period, and the measure of whether and to what degree such performance goals have been attained will be determined by the Compensation Committee.

        Performance goals under the Amended 2009 Plan are determined by our Board of Directors or the Compensation Committee, based on any one or more of the following performance criteria: (i) earnings (including earnings per share and net earnings); (ii) earnings before interest, taxes and depreciation; (iii) earnings before interest, taxes, depreciation and amortization; (iv) total stockholder return; (v) return on equity or average stockholder's equity; (vi) return on assets, investment, or capital employed; (vii) stock price; (viii) margin (including gross margin); (ix) income (before or after taxes); (x) operating income; (xi) operating income after taxes; (xii) pre-tax profit; (xiii) operating cash flow; (xiv) sales, backlog or revenue targets; (xv) increases in revenue or product revenue; (xvi) expenses and cost reduction, or other budgetary goals; (xvii) improvement in or attainment of working capital levels; (xviii) economic value added (or an equivalent metric); (xix) market share; (xx) cash flow; (xxi) cash flow per share; (xxii) share price performance; (xxiii) debt reduction; (xxiv) implementation or completion of projects or processes; (xxv) customer satisfaction, service, or personal visitations; (xxvi) stockholders' equity; (xxvii) capital expenditures; (xxviii) debt levels; (xxix) operating profit or net operating profit; (xxx) workforce diversity; (xxxi) growth of net income or operating income; (xxxii) billings; (xxxiii) completion of strategic, business, development, financial, employee or integration plan (or equivalent type of plan); (xxxiv) manufacturing, production, research and development, product launch or product objective goals; (xxxv) litigation, arbitration or other conflict achievements or resolutions; (xxxvi) hiring or reduction in headcount; (xxxvii) timely completion of internal and external analysis, or audits; (xxxviii) completion of performance goals by direct reports; and (xxxix) other measures of performance selected by our Board of Directors.

        Performance goals may be based on a company-wide basis, with respect to one or more business units, divisions, affiliates, or business segments, and in either absolute terms or relative to the performance of one or more comparable companies or the performance of one or more relevant indices. In establishing a performance goal, our compensation committee may provide that performance will be appropriately adjusted as follows: (i) to exclude restructuring and/or other nonrecurring charges; (ii) to exclude exchange rate effects, as applicable, for non-U.S. dollar denominated net sales and operating earnings; (iii) to exclude the effects of changes to generally accepted accounting principles; (iv) to exclude the effects of any statutory adjustments to corporate tax rates; and (v) to exclude the effects of any items that are "unusual" in nature or occur "infrequently" as determined under generally accepted accounting principles. In addition, our Board of Directors retains the discretion to reduce or eliminate the compensation or economic benefit due upon attainment of performance goals and to define the manner of calculating the performance criteria it selects to use for a performance period.

Other Stock Awards

        Other forms of stock awards valued in whole or in part with reference to Omnicell common stock may be granted either alone or in addition to other stock awards under the Amended 2009 Plan. The Compensation Committee has sole and complete authority to determine the persons to whom and the time or times at which such other stock awards will be granted, the number of shares of Omnicell common stock to be granted and all other conditions of such other stock awards. Other forms of stock awards may be subject to vesting in accordance with a vesting schedule to be determined by the Compensation Committee.

Clawback/Recovery

        Stock awards granted under the Amended 2009 Plan will be subject to recoupment in accordance with any clawback policy that we may be required to adopt pursuant to applicable law and listing requirements. In addition, the Board of Directors may impose such other clawback, recovery or recoupment provisions in any stock award agreement as it determines necessary or appropriate.

Changes to Capital Structure

        In the event that there is a specified type of change in our capital structure not involving the receipt of consideration by the Company, such as a stock split or stock dividend, the class and number of shares reserved under the Amended 2009 Plan (including share limits) and the class and number of shares and exercise price or strike price, if applicable, of all outstanding stock awards will be appropriately adjusted.

Corporate Transactions

        In the event of a corporate transaction, unless otherwise provided in a written agreement between the Company or any of its affiliates and the holder of the stock award, or expressly provided by the Board or the Compensation Committee at the time of grant of a stock award, in the event of a corporate transaction (as specified in the Amended 2009 Plan and described below), all outstanding stock awards under the Amended 2009 Plan shall be assumed, continued or substituted for by any surviving or acquiring entity (or its parent company). If the surviving or acquiring entity (or its parent company) elects not to assume, continue or substitute for such stock awards, then (i) with respect to any such stock awards that are held by individuals whose continuous service with us or an affiliate has not terminated prior to the effective date of the corporate transaction, the vesting and exercisability provisions of such stock awards will be accelerated in full and such awards will terminate if not exercised prior to the effective date of the corporate transaction, and (ii) with respect to any stock awards that are held by individuals whose continuous service with the Company or an affiliate of the Company has terminated prior to the effective date of the corporate transaction, the vesting and exercisability provisions of such stock awards will not be accelerated and such awards will terminate if not exercised prior to the effective date of the corporate transaction (except that any reacquisition or repurchase rights held by the Company with respect to such stock awards shall not terminate and may continue to be exercised notwithstanding the corporate transaction).

        A stock award may be subject to additional acceleration of vesting and exercisability upon or after a change in control, as provided in the stock award agreement or in any other written agreement between the Company or any affiliate of the Company and the participant, but in the absence of such provision, no acceleration shall occur.

Plan Amendments/ Plan Termination

        The Compensation Committee has the authority to amend or terminate the Amended 2009 Plan at any time. However, no amendment or termination of the Amended 2009 Plan will adversely affect any

rights under awards already granted to a participant unless agreed to by the affected participant. The Company will obtain stockholder approval of any amendment to the Amended 2009 Plan as required by applicable law. No ISOs will be granted after March 27, 2028.

U.S. Federal Income Tax Consequences

        The information set forth below is a summary only and does not purport to be complete. The information is based upon current federal income tax rules and therefore is subject to change when those rules change. Because the tax consequences to any recipient may depend on his or her particular situation, each recipient should consult the recipient's tax adviser regarding the federal, state, local, and other tax consequences of the grant or exercise of an award or the disposition of stock acquired as a result of an award. The Amended 2009 Plan is not qualified under the provisions of Section 401(a) of the Code, and is not subject to any of the provisions of the Employee Retirement Income Security Act of 1974. The Company's ability to realize the benefit of any tax deductions described below depends on its generation of taxable income.

Nonstatutory Stock Options

        Generally, there is no taxation upon the grant of a NSO where the option is granted with an exercise price equal to the fair market value of the underlying stock on the grant date. On exercise, an optionholder will recognize ordinary income equal to the excess, if any, of the fair market value on the date of exercise of the stock over the exercise price. If the optionholder is employed by us or one of our affiliates, that income will be subject to withholding tax. The optionholder's tax basis in those shares will be equal to their fair market value on the date of exercise of the option, and the optionholder's capital gain holding period for those shares will begin on that date.

        Subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code and the satisfaction of a tax reporting obligation, we will generally be entitled to a tax deduction equal to the taxable ordinary income realized by the optionholder.

Incentive Stock Options

        The Amended 2009 Plan provides for the grant of stock options that qualify as "incentive stock options," as defined in Section 422 of the Code. Under the Code, an optionholder generally is not subject to ordinary income tax upon the grant or exercise of an ISO. If the optionholder holds a share received on exercise of an ISO for more than two years from the date the option was granted and more than one year from the date the option was exercised, which is referred to as the required holding period, the difference, if any, between the amount realized on a sale or other taxable disposition of that share and the holder's tax basis in that share will be long-term capital gain or loss.

        If, however, an optionholder disposes of a share acquired on exercise of an ISO before the end of the required holding period, which is referred to as a disqualifying disposition, the optionholder generally will recognize ordinary income in the year of the disqualifying disposition equal to the excess, if any, of the fair market value of the share on the date the ISO was exercised over the exercise price. However, if the sales proceeds are less than the fair market value of the share on the date of exercise of the option, the amount of ordinary income recognized by the optionholder will not exceed the gain, if any, realized on the sale. If the amount realized on a disqualifying disposition exceeds the fair market value of the share on the date of exercise of the option, that excess will be short-term or long-term capital gain, depending on whether the holding period for the share exceeds one year.

        For purposes of the alternative minimum tax, the amount by which the fair market value of a share of stock acquired on exercise of an ISO exceeds the exercise price of that option generally will be an adjustment included in the optionholder's alternative minimum taxable income for the year in which the option is exercised. In computing alternative minimum taxable income, the tax basis of a share

acquired on exercise of an ISO is increased by the amount of the adjustment taken into account with respect to that share for alternative minimum tax purposes in the year the option is exercised.

        Omnicell is not allowed an income tax deduction with respect to the grant or exercise of an ISO or the disposition of a share acquired on exercise of an ISO after the required holding period. If there is a disqualifying disposition of a share, however, Omnicell is allowed a deduction in an amount equal to the ordinary income includible in income by the optionholder, subject to Section 162(m) of the Code and provided that amount constitutes an ordinary and necessary business expense for the Company and is reasonable in amount, and either the employee includes that amount in income or the Company timely satisfies its reporting requirements with respect to that amount.

Restricted Stock Awards

        Generally, the recipient of a restricted stock award will recognize ordinary compensation income at the time the stock is received equal to the excess, if any, of the fair market value of the stock received over any amount paid by the recipient in exchange for the stock. If, however, the stock is not vested when it is received (for example, if the employee is required to work for a period of time in order to have the right to sell the stock), the recipient generally will not recognize income until the stock becomes vested, at which time the recipient will recognize ordinary compensation income equal to the excess, if any, of the fair market value of the stock on the date it becomes vested over any amount paid by the recipient in exchange for the stock. A recipient may, however, file an election with the Internal Revenue Service, within 30 days of his or her receipt of the stock award, to recognize ordinary compensation income, as of the date the recipient receives the award, equal to the excess, if any, of the fair market value of the stock on the date the award is granted over any amount paid by the recipient in exchange for the stock.

        The recipient's basis for the determination of gain or loss upon the subsequent disposition of shares acquired from stock awards will be the amount paid for such shares plus any ordinary income recognized either when the stock is received or when the stock becomes vested.

        Subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code and the satisfaction of a tax reporting obligation, Omnicell will generally be entitled to a tax deduction equal to the taxable ordinary income realized by the recipient of the stock award.

Restricted Stock Units

        Generally, the recipient of a stock unit structured to conform to the requirements of Section 409A of the Code or an exception to Section 409A of the Code will recognize ordinary compensation income at the time the stock is delivered equal to the excess, if any, of the fair market value of the shares of Omnicell common stock received over any amount paid by the recipient in exchange for the shares of Omnicell common stock. To conform to the requirements of Section 409A of the Code, the shares of Omnicell common stock subject to a stock unit award may generally only be delivered upon one of the following events: a fixed calendar date (or dates), separation from service, death, disability or a change in control. If delivery occurs on another date, unless the stock units otherwise comply with or qualify for an exception to the requirements of Section 409A of the Code, in addition to the tax treatment described above, the recipient will owe an additional 20% federal tax and interest on any taxes owed.

        The recipient's basis for the determination of gain or loss upon the subsequent disposition of shares acquired from stock units will be the amount paid for such shares plus any ordinary income recognized when the stock is delivered.

        Subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code and the satisfaction of a tax reporting obligation, we will generally be entitled to a tax deduction equal to the taxable ordinary income realized by the recipient of the stock award.

Stock Appreciation Rights

        The Company may grant under the Amended 2009 Plan stock appreciation rights separate from any other award or in tandem with other awards under the Amended 2009 Plan.

        Where the rights are granted with a strike price equal to the fair market value of the underlying stock on the grant date and where the recipient may only receive the appreciation inherent in the stock appreciation rights in shares of Omnicell common stock, the recipient will recognize ordinary compensation income equal to the fair market value of the stock received upon such exercise. If the recipient may receive the appreciation inherent in the stock appreciation rights in cash or other property and the stock appreciation right has been structured to conform to the requirements of Section 409A of the Code, then the cash will be taxable as ordinary compensation income to the recipient at the time that the cash is received. Subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code and the satisfaction of a tax reporting obligation, Omnicell will generally be entitled to a tax deduction equal to the taxable ordinary income realized by the recipient of the stock appreciation right.

Section 162 Limitations

        Compensation of persons who are "covered employees" of the Company is subject to the tax deduction limits of Section 162(m) of the Code. The exemption from Section 162(m)'s deduction limit for performance-based compensation has been repealed, effective for taxable years beginning after December 31, 2017, such that compensation paid to our covered employees in excess of $1 million will not be deductible unless it qualifies for transition relief applicable to certain arrangements in place as of November 2, 2017.

New Plan Benefits

        The Company cannot currently determine the benefits or number of shares subject to awards that may be granted in the future to executive officers, directors, and employees under the Amended 2009 Plan. We do not presently have any current plans, proposals or arrangements, written or otherwise, to issue any of the newly available authorized shares under the Amended 2009 Plan, except pursuant to our non-employee director compensation plan. Awards granted in 2018 to our non-employee directors are discretionary and are not subject to set benefits or amounts under the terms of our non-employee director compensation plan. Pursuant to our compensation policy for non-employee directors, however, (A) each of our current non-employee directors is eligible to receive a quarterly retainer of $22,500 for serving on the Board plus, (B) our independent lead director is eligible to receive annual compensation for service in such capacity as (I) $4,375 in cash each quarter, and (II) an annual restricted stock grant valued at $17,500, plus (C) the chairperson of our Audit Committee is eligible to receive (I) a quarterly retainer of $5,000, and (II) an annual restricted stock grant valued at $20,000, plus (D) each non-chair member of our Audit Committee is eligible to receive (I) a quarterly retainer of $2,500, and (II) a restricted stock grant valued at $10,000, (E) the chairperson of our Corporate Governance Committee is eligible to receive (I) a quarterly retainer of $2,750, and (II) an annual restricted stock grant valued at $11,000, plus (F) each non-chair member of our Corporate Governance Committee is eligible to receive (I) a quarterly retainer of $1,875, and (II) a restricted stock grant valued at $7,500, plus (G) the chairperson of our Compensation Committee is eligible to receive (I) a quarterly retainer of $5,000, and (II) an annual restricted stock grant valued at $20,000, plus (D) each non-chair member of our Compensation Committee is eligible to receive (I) a quarterly retainer of $2,500, and (II) a restricted stock grant valued at $10,000, plus (H) each member of our Mergers & Acquisitions Committee is eligible to receive a cash compensation fee in the amount of $1,250 for each meeting duly convened and held that such member attends. Any non-employee director who is first elected to the Board will be entitled to receive a grant of options to purchase shares of our common stock valued at $150,000. All such option grants will have an exercise price per share equal to the fair market value of our

common stock on the date of grant. In addition, on the date of each annual meeting, each person who continues to serve as a non-employee member of the Board of Directors following such annual meeting will be granted a restricted stock grant valued at $120,000. Each initial grant for a non-employee director will vest over a three year period, and each annual grant for a non-employee director will vest on the next subsequent annual meeting, in each case subject to the director's continuing service on our Board of Directors (or as the Lead Independent Director or member of chairman of a committee, as applicable). After the date of the Annual Meeting, any such awards will be granted under our non-employee director compensation plan if this Proposal No. 2 is approved by our stockholders. For additional information regarding our compensation policy for non-employee directors, see the "Director Compensation" section below.

Plan Benefits Table

        The following table sets forth, for each of the individuals and groups indicated, the total number of shares of our common stock subject to awards that have been granted (even if not currently outstanding) under the 2009 Plan and the Amended 2009 Plan through December 31, 2017.

2009 Plan and Amended 2009 Plan

Required Vote and Recommendation of the Board of Directors

        Approval of Proposal No. 2 requires the affirmative vote of a majority of the shares present in person or represented by proxy and entitled to vote at the Annual Meeting. Abstentions will be counted toward the tabulation of votes cast on Proposal No. 2 and will have the same effect as "Against" votes. Broker non-votes will have no effect on the outcome of the vote.

        Our Board of Directors believes that approval of Proposal No. 2 is in the best interest of the Company and the best interests of the stockholders for the reasons stated above.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS
A VOTE "FOR" PROPOSAL NO. 2.

PROPOSAL NO. 3

ADVISORY VOTE ON EXECUTIVE COMPENSATION

        At each of our 2011 and 2017 Annual MeetingMeetings of Stockholders, our stockholders indicated their preference that we solicit a non-binding advisory vote on the compensation of our named executive officers, commonly referred to as a "say-on-pay vote," every year. Our Board has adopted a policy that is consistent with that preference. In accordance with that policy, this year, we are again asking our stockholders to approve, on an advisory basis, the compensation of our named executive officersNamed Executive Officers as disclosed in this Proxy Statementproxy statement in accordance with SEC rules. This vote is not intended to address any specific item of compensation, but rather the overall compensation of our named executive officersNamed Executive Officers and the philosophy, policies and practices described in this proxy statement.

        The compensation of our named executive officersNamed Executive Officers is disclosed in the Compensation Discussion and Analysis, the compensation tables and the related narrative disclosure contained on pages 2840 to 4368 of this proxy statement. As discussed in those disclosures, we believe that our compensation policies and decisions are appropriately designed to align the interests of our executive officers with those of our stockholders, to emphasize strong pay-for-performance principles and to enable us to attract and retain talented and experienced executives to lead the Company in a competitive environment.

        Applying these philosophies, the Compensation Committee of our Board has set specific compensation goals designed to help the Company achieve our short- and long-term business and performance goals. The Compensation Committee believes that our executive officers should have the potential to earn total cash compensation at approximately the 75^th percentile of our peer group's total cash compensation if our executive officers accomplish specific performance goals that the Compensation Committee sets to help the Company achieve its performance goals. The Compensation Committee has used an objective of base salary compensation at the 50^th percentile of our peer group as guidance in its decision-making.

        The base salaries of the named executive officersNamed Executive Officers in 20162017 ranged from the 25^th to 50^th percentile to above the 50^th to 75^th percentile of our peer group. The total target cash compensation of our named executive officersNamed Executive Officers in 2016,2017, assuming achievement of performance goals, ranged from the 50^th to 75^th percentile to above the 75^th percentile of our peer group.

        With regard to long-term equity incentive compensation (not including special equity awards granted in recognition of performance during 2016), the value of such compensation awarded to the named executive officers,Named Executive Officers, calculated using Black-Scholes-Merton valuation methodology for stock option awards, ranged from below the 50^th percentile to betweenabove the 50^th and 75^th percentile of our peer group in 2016.2017. Such a valuation is necessarily sensitive to movement in the stock price of the target stock, but in 2016 our average compensation value for long-term equity incentive grants to our executives was at approximately between the 50^th and 75^th percentile of the comparator group.stock.

        Beginning in 2011, the Board implemented a policy of declaring half of the equity incentive grants to executives to vest upon the successful achievement of certain market-based performance metrics by the Company. The market-based performance comparison adopted by the Company compares the total stockholder return of its common stock to that of the companies in the Nasdaq Health Care Index (the "Index").Index.

        In summary, the elements of our compensation package as well as the amount of compensation paid to our named executive officersNamed Executive Officers emphasize strong pay-for-performance principles and provide reasonable compensation to our named executive officers.Named Executive Officers.

        For these reasons, the Board is asking stockholders to support the compensation of the Company's named executive officersNamed Executive Officers as described in this proxy statement by casting a non-binding advisory vote "FOR" the following resolution:

        "RESOLVED, that the Company's stockholders approve, on an advisory basis, the compensation of the named executive officers,Named Executive Officers, as disclosed in the Company's Proxy Statementproxy statement for the 20172018 Annual Meeting of Stockholders pursuant to the compensation disclosure rules of the

Securities and Exchange Commission, including the Compensation Discussion and Analysis, the 20162017 Summary Compensation Table and the other related tables and disclosure."

        While the advisory vote we are asking you to cast is non-binding, the Compensation Committee and the Board value the views of our stockholders and will take into account the outcome of the vote when considering future compensation decisions for our named executive officers.

        Advisory approval of this proposal requires the vote of the holders of a majority of the shares present in person or represented by proxy and entitled to vote at the Annual Meeting.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS
A VOTE "FOR" PROPOSAL NO. 2.3.

PROPOSAL NO. 3

ADVISORY VOTE ON THE FREQUENCY OF SOLICITATION OF ADVISORY VOTES
TO APPROVE EXECUTIVE COMPENSATION

        The Dodd-Frank Wall Street Reform and Consumer Protection Act and Section 14A of the Exchange Act enable the Company's stockholders, at least once every six years, to indicate their preference regarding how frequently the Company should solicit a say-on-pay vote/non-binding advisory vote on the compensation of the Company's named executive officers as disclosed in the Company's proxy statement. Currently, consistent with the preference expressed by the stockholders at the Company's 2011 Annual Meeting of Stockholders, the policy of the Board is to solicit a say-on-pay vote/ non-binding advisory vote on the compensation of the named executive officers every year. The Company is again asking its stockholders to indicate whether they would prefer an advisory vote every year, every other year or every three years. Alternatively, stockholders may abstain from casting a vote. For the reasons described below, the Board recommends that the stockholders select a frequency of one year.

        Although we recognize the potential benefits of having less frequent advisory votes on named executive officer compensation (including allowing the Company additional time to conduct a more detailed review of its pay practices in response to the outcome of stockholder advisory votes), we recognize that the widely adopted standard, both among our peer companies as well as outside our industry, is to hold "say-on-pay" votes annually. We also acknowledge current stockholder expectations regarding having the opportunity to express their views on the Company's compensation of its named executive officers on an annual basis. In light of investor expectations and prevailing market practice, the Board of Directors recommends that the advisory vote on executive compensation occur every year.

        The proxy card provides for four choices and stockholders are entitled to vote on whether the advisory vote on executive compensation should be held every year, every two years or every three years, or to abstain from voting.

        The result of this advisory vote on the frequency of the vote on named executive officer compensation is not binding on the Company, the Board or the Compensation Committee, and will not be construed as overruling a decision by the Company, the Board or the Compensation Committee or creating or implying any additional fiduciary duty for the Company, the Board or the Compensation Committee. However, the Board values the opinions that stockholders express in their votes. The Board will consider the outcome of the vote and stockholder feedback when deciding how frequently to conduct the advisory vote on named executive officer compensation. Notwithstanding the Board's recommendation and the outcome of the stockholder vote, the Board may in the future decide to conduct "say-on-pay" votes on a more or less frequent basis and may vary its practice based on factors such as discussions with stockholders and the adoption of material changes to its executive compensation programs.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE
TO HOLD THE ADVISORY VOTE ON EXECUTIVE COMPENSATIONEVERY YEAR.

PROPOSAL NO. 4

RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        The Audit Committee of the Board has selected Deloitte & Touche LLP ("Deloitte") as the Company's independent registered public accounting firm for the year ending December 31, 20172018 and has further directed that management submit the selection of the independent registered public accounting firm for ratification by the stockholders at the Annual Meeting. Representatives of Deloitte are expected to be present at the Annual Meeting. They will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions. Deloitte has served as our independent registered public accounting firm since April 7,fiscal year 2014.

        Neither the Company's Bylawsbylaws nor other governing documents or law require stockholder ratification of the selection of Deloitte as the Company's independent registered public accounting firm. However, the Audit Committee of the Board is submitting the selection of Deloitte to the stockholders for ratification as a matter of good corporate practice. If the stockholders fail to ratify the selection, the Audit Committee of the Board will reconsider whether or not to retain that firm. Even if the selection is ratified, the Audit Committee of the Board in its discretion may direct the appointment of a different independent registered public accounting firm at any time during the year if they determine that such a change would be in the best interests of the Company and its stockholders.

Principal Accountant Fees and Services

        The following table represents aggregate fees billed to the Company for the fiscal years ended December 31, 20162017 and December 31, 20152016 by Deloitte.

        Audit Fees.    Consists of fees billed for professional services rendered for the audit of the Company's annual consolidated financial statements included in the Annual Report on Form 10-K and review of the interim consolidated financial statements included in quarterly reports on Form 10-Q, professional services associated with SEC registration statements and other documents filed with the SEC, consultations with the Company's management as to the accounting treatment of transactions or events and/or the actual or potential impact of final or proposed rules, standards or interpretations by the SEC, the Financial Accounting Standards Board or other standard- setting bodies, and other services that are normally provided by the Company's independent registered public accounting firms in connection with statutory and regulatory filings or engagements.

        Audit-Related Fees.    Consists of 2016 fees also include $340,000 billed for professional services rendered in connection with the Company's acquisitions of Aesynt and Ateb during the year ended December 31, 2016. Professional services rendered included review2016, including audits of the valuation reportsvaluations and purchase price allocations of the acquired entities.business combination accounting.

        Tax Fees.    Consists of fees billed for professional services for tax compliance, tax advice and tax planning outside of the audit of the income tax accounts.

        All Other Fees.    Consists of fees billed for subscriptions to an on-line accounting and financial reporting research assistance service post-closingservice. 2016 fees also include advisory services related to an integration consulting work.and culture survey.

Pre-Approval Policies and Procedures

        The Audit Committee has adopted a policy and procedures for the pre-approval of audit and non-audit services rendered by the Company's independent registered public accounting firm. The policy generally pre-approves specified services in the defined categories of audit services, audit-related services, tax services and other non-audit services up to specified amounts. Pre-approval may also be given as part of the Audit Committee's approval of the scope of the engagement of the independent registered public accounting firm or on an individual explicit case-by-case basis before the independent registered public accounting firm is engaged to provide each service. The pre-approval of services may be delegated to one or more of the Audit Committee's members, but the decision must be reported to the full Audit Committee at its next scheduled meeting.

        The Audit Committee has determined that the rendering of the services other than audit services by Deloitte was compatible with maintaining their independence.

        In 2016,2017, the Audit Committee pre-approved the fees set forth on the previous page in their entirety.

Required Vote and Recommendation of the Board of Directors

        Approval of Proposal No. 4 requires the affirmative vote of a majority of the shares present in person or represented by proxy and entitled to vote at the Annual Meeting. Abstentions will be counted toward the tabulation of votes cast on Proposal No. 4 and will have the same effect as "Against" votes. Broker non-votes will have no effect on the outcome of the vote.

        The Board believes that approval of Proposal No. 4 is in the best interest of the Company and the best interests of the stockholders for the reasons stated above.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS
A VOTE "FOR" PROPOSAL NO. 4.

SECURITY OWNERSHIP OF
CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

        The following table sets forth certain information regarding the ownership of the Company's common stock as of March 15, 20176, 2018 by: (i) each director and nominee for director; (ii) each of the executive officers named in the Summary Compensation Table; (iii) all current executive officers and directors of the Company as a group; and (iv) all those known by the Company to be beneficial owners of more than 5% of its common stock.

SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

        Section 16(a) of the Exchange Act requires the Company's directors and executive officers, and persons who own more than 10% of a registered class of the Company's equity securities, to file with the SEC initial reports of ownership and reports of changes in ownership of common stock and other equity securities of the Company. Officers,Executive officers, directors and greater than 10% stockholders are required by SEC regulation to furnish the Company with copies of all Section 16(a) forms they file.

        The Company submits all applicable Section 16(a) filing requirements on behalf of its executive officers and directors. To the Company's knowledge, based on the reports filed by the Company, copies of such reports furnished to the Company and written representations that no other reports were required during the fiscal year ended December 31, 2016,2017, all Section 16(a) filing requirements applicable to its executive officers and directors were complied with, except for one Form 4 filing for Jorge Tabora, the Company's Executive Vice President, Engineering, covering the vesting, and related tax withholding, of restricted stock unit shares, which was filed late.with.

EXECUTIVE COMPENSATION

COMPENSATION DISCUSSION AND ANALYSIS

        This Compensation Discussion and Analysis provides information regarding compensation paid to our President and Chief Executive Officer, our Chief Financial Officer and our three other most highly compensated executive officers (the "Named Executive Officers") as of December 31, 2016.2017. These individuals are:

•

Randall A. Lipps, Chairman, President and Chief Executive Officer;



•

Peter J. Kuipers, Executive Vice President, Chief Financial Officer;



•

Robin G. Seim, President, Global Automation and Medication Adherence;



•

J. Christopher Drew⁽¹⁾, former President, North American Automation and Analytics; and



•

Nhat H. Ngo,Dan S. Johnston, Executive Vice President, StrategyChief Legal and Business Development.Administrative Officer.

        The compensation programs described hereinin this Compensation Discussion and Analysis are available to all of Omnicell's executive officers.

Overview

        Our executive compensation program is designed to provide our executive officers incentives and rewards, while effectively balancing the short-term and long-term interests of our stockholders with our ability to attract and retain talented executives. The Compensation Committee of our Board (the "Committee") has the primary responsibility for establishing our executive compensation philosophy and determining the specific components and levels of each executive's compensation. Our executive compensation program is based on four guiding principles, as set forth by the Committee. We have created a compensation program that combines short-term and long-term components, cash and equity and fixed and performance-based contingent payments, in the proportions we believe achieve these four guiding principles:

•

Enhance stockholder value by aligning the financial interests of our executive officers with those of our stockholders;



•

Enable us to attract, motivate and retain the people needed to define and create industry-leading products and services;



•

Integrate compensation closely with the achievement of our business and performance objectives; and



•

Reward individual performance that contributes to our short-term and long-term success.

        An important element of our compensation philosophy is to provide executives with compensation packages that are competitive with compensation packages for executives in comparable positions at technology companies of similar size and industriesindustry to us in order to attract, motivate and retain dynamic and innovative executives to lead our strategic initiatives. As such, the Committee utilizes and relies significantly on a benchmarking analysis when determining the size, components and mix of the executive officers' compensation elements.

        Our executive officers' target annual compensation consists of threeThe table below describes the principal components: (a) base salary, (b) a performance-based cash bonus and (c) long-term equity incentive compensation. In addition, eachelements of our executive officers is eligible for an additional componentcompensation program, including the primary objectives of compensation in the form of cash bonuses that are paid only in the event of significant overachievement of annualized measurements over oneeach element and two year time horizons. Long-term equity incentive compensation includes both time-based and performance-based components. The base salary component is primarily designed to provide a predictable level of financial stability. The performance-based cash bonus is designed to reward the achievement of short-term goals. The additional cash bonuses are designed to provide

incentive to overachieve short-term and long-term goals. The base salary, performance-based cash bonus, and additional cash bonuses are referred to as the cash component of the compensation plan.

        The equity compensation component is primarily designed to incentivize and retain our executives and to reward the achievement of our long-term financial success.any associated performance measures. The Committee utilizes a benchmarking analysis when determining total cash compensation, allocating cash

⁽¹⁾

As previously disclosed, Mr. Drew departed the Company as of April 2, 2018.

compensation between base salary and performance-based bonus, and in awarding long-term equity compensation.

        In May 2016,2017, we held a stockholder advisory vote on the compensation of our Named Executive Officers. Our stockholders approved, on an advisory basis, the compensation of our Named Executive Officers, with approximately 99% of stockholder votes cast in favor of our "Say on Pay" resolution. In evaluating our compensation practices during fiscal 20162017 and in early 2017,2018, we were mindful of the support our stockholders expressed for our philosophy of linking compensation to our operating and organizational objectives and the enhancement of stockholder value. As a result, the Committee retains our general approach to executive compensation, and continued to apply the same general principles and philosophy as in the prior fiscal year in determining executive compensation. The Committee will continue to consider stockholder concerns and feedback in the future.

Role of the Compensation Committee

        Our Board has delegated to the Committee the responsibility for developing our compensation philosophy, establishing our executive compensation program and overseeing equity awards under our equity incentive plans. On an annual basis, the Committee approves the individual compensation packages for each of our executive officers. Although the Committee maintains ultimate authority over our executive officers' compensation, the Committee considers the input and evaluations of our President and Chief Executive Officer, Randall A. Lipps, as it relates to executive officers other than Mr. Lipps. In conjunction with the Committee's annual review, Mr. Lipps develops cash and equity compensation proposals for each executive (other than himself) to present to the Committee for

discussion and approval. Mr. Lipps does not participate in the final determination of his own compensation.

Benchmarking / Compensation Consultant

        The Committee engaged the services of Radford in late 20152016 and again in late 20162017 to serve as an independent advisor to the Committee to assist in reviewing the compensation of the Company's executive officers, including identifying companies for competitive analysis and benchmarking. As part of its engagements, Radford worked closely with the Committee to identify comparable peer companies, provided the Committee with reports summarizing a comparison of ourthe total compensation of our executive officers with such peer companies and provided an assessment of the specific elements of our executive compensation components in relation to the peer companies. The Committee believes benchmarking of executive compensation is crucial to maintaining compensation levels competitive with other leading technology companies with which we compete for personnel. Additionally, benchmarking provides guideposts, which the Committee uses to determine the size, mix and components of executive compensation.

        Historically it has been and continues to be challenging to find appropriately-sized industry competitors for comparison. Therefore, the Committee and its compensation consultants have developed a group of comparable publicly-traded companies based on such factors as revenue growth, market capitalization and, to the extent possible, industry similarity, that we believe provides a meaningful cross-section from which to benchmark executive compensation. The Committee and its compensation consultants also, to the extent possible,reasonable, have included companies in the peer group with which Omnicell believes that it may compete for personnel. This peer group focuses primarily on three industry subcategories that are representative of portions of our business: the healthcare information management software industry, the medical equipment and supplies industry, and the supply chain

management and logistics software and manufacturing industry. The CommitteeSoftware companies are also considered and its compensation consultants strive to maintain a consistent peer group year over year for comparability of competitive analysis; however, on a yearly basis the peer group is reviewed and refined to take into consideration comparability of financial performance relative to Omnicell, as well as the acquisition of or any fundamental changes in the peer companies' operating businesses.included where appropriate. For all compensation decisions in 2016,2017, including the long-term equity compensation awards made in February 2016,2017, the Committee utilized a report prepared by Radford in late 20152016 (the "Radford Report"). To the extent that there are statements relating to percentiles included in this Compensation Discussion and Analysis, they are intended to reference performance against peer companies as identified in the Radford Report.

        The companies identified for benchmark comparison in each of the 2015Radford Report and 2016 reports were:selected by the Committee as our 2017 peer group were as follows:

        The Committee and its compensation consultants strive to maintain a consistent peer group year over year for comparability of competitive analysis. However, on a yearly basis the peer group is reviewed and refined to take into consideration comparability of peer companies' financial performance relative to Omnicell, as well as the acquisition of or any fundamental changes in the peer companies' operating businesses. As part of this review process, the Committee made the following changes to the 2016 peer group in determining the 2017 peer group:

•

Removed Cyberonics, Inc., MedAssets, Inc., Merge Healthcare, Inc. and Thoratec Corp., each of which was acquired in the second half of 2015 or early 2016;

•

Removed Abaxis, Inc., Accuracy, Inc. and Computer Programs & Systems, Inc., as the revenues and/or market capitalization of each of these companies no longer fell within the revised selection criteria ranges;



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Removed Merit Medical Systems, Inc., as this company is based in a lower cost-of-living market and was therefore considered an outlier among the other companies in the peer group; and



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Added four healthcare and medical device companies (AllScripts Healthcare Solutions, Inc., Analagic Corporation, Inovalon Holdings, Inc. and NuVasive, Inc.) and three software companies (Silver Springs Network, Inc., Synchronoss Technologies, Inc. and Tableau Software, Inc.). The revenues and market capitalization of each of these seven companies fell within the selection criteria ranges, and they were added in part to replace the removal of the eight companies discussed above and to maintain our target peer group size.

Elements of Compensation and 20162017 Determinations

        Our executive compensation program consists of three principal components: a base salary, a performance-based cash bonus plan (together with base salary, the "total cash compensation"), and long-term equity incentive compensation. The long-term equity incentive compensation is further divided into two components of equal grant date value: stock options and restricted stock units that vest over time if the executive remains employed with the Company; and performance-based restricted stock units that only initially vest only upon the achievement of certain Company performance metrics, and thereafter vest over time if the executive remains employed with the Company. We also provide our executive officers with certain other benefits including severance and change-of-control benefits and the ability to participate in our 401(k) plan and other employee benefit plans with all other eligible employees. The philosophy underlying each of the components of compensation and the specific factors weighing on the compensation determinations for 20162017 are discussed in each section below.

Cash Compensation.

        Overview.    The cash component of our executive compensation program serves a two-fold purpose. Base salaries are intended to provide financial stability, predictability and security of compensation for our executive officers for fulfilling their core job responsibilities, while the performance-based cash bonus plan is intended to incentivize and reward the achievement of predetermined corporate and individual short-term objectives. In addition, short-term and long-term performance cash incentives are utilized to further motivate and reward our executive officers for achieving short and long-term corporate growth and financial performance goals that exceed industry benchmarks and maximize stockholder value in accordance with the Company's long term strategic plans. Long-term incentives also serve to encourage the long-term employment of our executive officers. The Committee's objective has been and continues to be for each executive officer to be able to achieve approximately the 75^th percentile for comparable positions identified in the Radford Report in total cash compensation, assuming achievement of each of his or her performance objectives, resulting in payment in full of the executive's total performance-based cash bonus, and for base salary compensation at the 50^th percentile for comparable positions identified in the Radford Report as guidance in its decision-making. In determining the level of base salary and the potential maximum performance-based bonus for each