UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the
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Molecular Devices Corporation


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MOLECULAR DEVICES CORPORATION
1311 Orleans Drive
Sunnyvale, CA 94089
NOTICE OF ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON MAY 24, 2001 TO THE STOCKHOLDERS OF MOLECULAR DEVICES CORPORATION: NOTICE IS HEREBY GIVEN that
To Be Held on May 26, 2005
Dear Stockholder:
      You are cordially invited to attend the Annual Meeting of Stockholders of MOLECULAR DEVICES CORPORATION,Molecular Devices Corporation, a Delaware corporation (the "Company"),corporation. The meeting will be held on Thursday, May 24, 2001 at 10:30 a.m. local time at the Company'sMolecular Devices’ corporate headquarters, located at 1311 Orleans Drive, Sunnyvale, California 94089, on Thursday, May 26, 2005 at 10:30 a.m. local time, for the following purposes: 1. To elect directors to serve for the ensuing year and until their successors are elected. 2. To approve the Company's 1995 Stock Option Plan, as amended, to increase the aggregate number of shares of Common Stock authorized for issuance under such plan by 1,000,000 shares (resulting in a net increase in the shares authorized for issuance under the Company's employee equity incentive plans of 470,991 shares based on a concurrent reduction in the number of shares authorized under LJL BioSystems' 1994 Equity Incentive Plan, 1997 Stock Plan and 1998 Directors' Stock Plan, as described in the Proxy Statement accompanying this Notice). 3. To approve an amendment to the Company's Certificate of Incorporation to increase the authorized number of shares of Common Stock from 30,000,000 to 60,000,000 shares. 4. To ratify the selection of Ernst & Young LLP as independent auditors of the Company for its fiscal year ending December 31, 2001. 5. To transact such other business as may properly come before the meeting or any adjournment or postponement thereof. The foregoing
1. To elect directors to serve for the ensuing year and until their successors are elected.
2. To approve the Molecular Devices Corporation 2005 Equity Incentive Plan.
3. To ratify the selection by the Audit Committee of the Board of Directors of Ernst & Young LLP as Molecular Devices’ independent registered public accounting firm for the fiscal year ending December 31, 2005.
4. To conduct any other business properly brought before the meeting.
      These items of business are more fully described in the Proxy Statement accompanying this Notice.
      The Boardrecord date for the Annual Meeting is March 31, 2005. Only stockholders of Directors has fixedrecord at the close of business on that date may vote at the meeting or any adjournment thereof.
By Order of the Board of Directors
-s- James C. Kitch
James C. Kitch
Secretary
Sunnyvale, California
April 23, 2001,22, 2005
You are cordially invited to attend the meeting in person. Whether or not you expect to attend the meeting, please complete, date, sign and return the enclosed proxy as promptly as possible in order to ensure your representation at the meeting. A return envelope (which is postage prepaid if mailed in the United States) is enclosed for your convenience. Even if you have voted by proxy, you may still vote in person if you attend the meeting. Please note, however, that if your shares are held of record date for the determination of stockholders entitled to notice ofby a broker, bank or other nominee and you wish to vote at this Annual Meeting and at any adjournment or postponement thereof. By Order of the Board of Directors /s/ James C. Kitch ----------------------------- James C. Kitch Secretary Sunnyvale, California April 26, 2001 - -------------------------------------------------------------------------------- ALL STOCKHOLDERS ARE CORDIALLY INVITED TO ATTEND THE MEETING IN PERSON. WHETHER OR NOT YOU EXPECT TO ATTEND THE MEETING, PLEASE COMPLETE, DATE, SIGN AND RETURN THE ENCLOSED PROXY AS PROMPTLY AS POSSIBLE IN ORDER TO ENSURE YOUR REPRESENTATION AT THE MEETING. A RETURN ENVELOPE (WHICH IS POSTAGE PREPAID IF MAILED IN THE UNITED STATES) IS ENCLOSED FOR THAT PURPOSE. EVEN IF YOU HAVE GIVEN YOUR PROXY, YOU MAY STILL VOTE IN PERSON IF YOU ATTEND THE MEETING. PLEASE NOTE, HOWEVER, THAT IF YOUR SHARES ARE HELDmeeting, you must obtain a proxy issued in your name from that record holder.


TABLE OF RECORD BY A BROKER, BANK OR OTHER NOMINEE AND YOU WISH TO VOTE AT THE MEETING, YOU MUST OBTAIN FROM THE RECORD HOLDER A PROXY ISSUED IN YOUR NAME. - -------------------------------------------------------------------------------- CONTENTS

QUESTIONS AND ANSWERS ABOUT THIS PROXY MATERIAL AND VOTING
PROPOSAL 1 ELECTION OF DIRECTORS
REPORT OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS
PROPOSAL 2 APPROVAL OF THE MOLECULAR DEVICES CORPORATION 2005 EQUITY INCENTIVE PLAN
PROPOSAL 3 RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
EXECUTIVE OFFICERS OF THE COMPANY
EXECUTIVE COMPENSATION
Summary Compensation Table
REPORT OF THE COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS ON EXECUTIVE COMPENSATION
CERTAIN TRANSACTIONS
PERFORMANCE MEASUREMENT COMPARISON
OTHER MATTERS


MOLECULAR DEVICES CORPORATION
1311 Orleans Drive
Sunnyvale, CA 94089
PROXY STATEMENT
FOR THE 2005 ANNUAL MEETING OF STOCKHOLDERS
MAY 24, 2001 INFORMATION CONCERNING SOLICITATION26, 2005
QUESTIONS AND ANSWERS ABOUT THIS PROXY MATERIAL AND VOTING GENERAL The
Why am I receiving these materials?
      We sent you this proxy statement and the enclosed proxy is solicited on behalf ofcard because the Board of Directors of Molecular Devices Corporation a Delaware corporation ("is soliciting your proxy to vote at Molecular Devices" or the "Company"), for use atDevices’ 2005 Annual Meeting of Stockholders. You are invited to attend the Annual Meeting, of Stockholdersand we request that you vote on the proposals described in this proxy statement. You do not need to be held on May 24, 2001, at 10:30 a.m. local time (the "Annual Meeting"), or at any adjournment or postponement thereof, forattend the purposes set forth hereinmeeting to vote your shares, however. Instead, you may simply complete, sign and inreturn the accompanying Notice of Annual Meeting. The Annual Meeting will be held at the Company's corporate headquarters, located at 1311 Orleans Drive, Sunnyvale, California 94089. The Companyenclosed proxy card.
      Molecular Devices intends to mail this proxy statement and the accompanying proxy card on or about April 26, 2001,2005, to all stockholders of record entitled to vote at the Annual Meeting. SOLICITATION The Company will bear
Who can vote at the entire costAnnual Meeting?
      Only stockholders of solicitation of proxies, including preparation, assembly, printing and mailing of this proxy statement, the proxy card and any additional information furnished to stockholders. Copies of solicitation materials will be furnished to banks, brokerage houses, fiduciaries and custodians holding in their names shares of Common Stock beneficially owned by others to forward to such beneficial owners. The Company may reimburse persons representing beneficial owners of Common Stock for their costs of forwarding solicitation materials to such beneficial owners. Original solicitation of proxies by mail may be supplemented by telephone, telegram or personal solicitation by directors, officers or other regular employees of the Company. No additional compensation will be paid to directors, officers or other regular employees for such services. VOTING RIGHTS AND OUTSTANDING SHARES Only holders of record of Common Stock at the close of business on April 23, 2001March 31, 2005 will be entitled to notice of and to vote at the Annual Meeting. AtOn this record date, there were 16,920,474 shares of common stock outstanding and entitled to vote.
Stockholder of Record: Shares Registered in Your Name
      If on March 31, 2005, your shares were registered directly in your name with Molecular Devices’ transfer agent, EquiServe Trust Company, N.A., then you are a stockholder of record. As a stockholder of record, you may vote in person at the meeting or vote by proxy. Whether or not you plan to attend the meeting, we urge you to fill out and return the enclosed proxy card to ensure your vote is counted.
Beneficial Owner: Shares Registered in the Name of a Broker or Bank
      If on March 31, 2005, your shares were held not in your name, but rather, in an account at a brokerage firm, bank, dealer, or other similar organization, then you are the beneficial owner of shares held in “street name” and these proxy materials are being forwarded to you by that organization. The organization holding your account is considered to be the stockholder of record for purposes of voting at the Annual Meeting. As a beneficial owner, you have the right to direct your broker or other agent on how to vote the shares in your account. You are also invited to attend the Annual Meeting. Since you are not the stockholder of record, however, you may not vote your shares in person at the meeting unless you request and obtain a valid proxy from your broker or other agent.
What am I voting on?
      There are three matters scheduled for a vote:
• Election of eight directors;
• The approval of the Molecular Devices Corporation 2005 Equity Incentive Plan; and
• The ratification of Ernst & Young LLP as Molecular Devices’ independent registered public accounting firm for the fiscal year ending December 31, 2005.

1


How do I vote?
      You may either vote “For” all the nominees to the Board of Directors or you may “Withhold” your vote for any nominee you specify. For each of the other matters to be voted on, you may vote “For” or “Against” or abstain from voting. The procedures for voting are fairly simple:
Stockholder of Record: Shares Registered in Your Name
      If you are a stockholder of record, you may vote in person at the Annual Meeting, or vote by proxy using the enclosed proxy card. If you vote by proxy, your shares will be voted as you specify on the proxy card. Whether or not you plan to attend the meeting, we urge you to vote by proxy to ensure your vote is counted. You may still attend the Annual Meeting and vote in person if you have already voted by proxy.
• To vote in person, come to the Annual Meeting and we will give you a ballot when you arrive.
• To vote using the enclosed proxy card, simply complete, sign and date the enclosed proxy card and return it promptly in the envelope provided. If you return your signed proxy card to us before the Annual Meeting, we will vote your shares as you direct.
Beneficial Owner: Shares Registered in the Name of Broker or Bank
      If you are a beneficial owner of shares registered in the name of your broker, bank, or other agent, you should have received a proxy card and voting instructions with these proxy materials from that organization rather than from Molecular Devices. Simply complete and mail the proxy card to ensure that your vote is counted. To vote in person at the Annual Meeting, you must obtain a valid proxy from your broker, bank, or other agent. Follow the instructions from your broker or bank included with these proxy materials, or contact your broker or bank to request a proxy form.
How many votes do I have?
      On each matter to be voted upon, you have one vote for each share of common stock you own as of March 31, 2005.
What if I return a proxy card but do not make specific choices?
      If you return a signed and dated proxy card without marking any voting selections, your shares will be voted “For” all the nominees to the Board of Directors and “For” proposals 2 and 3. If any other matter is properly presented at the meeting, your proxy (i.e., one of the individuals named on your proxy card) will vote your shares using his best judgment.
Who is paying for this proxy solicitation?
      We will pay for the entire cost of soliciting proxies. In addition to these mailed proxy materials, our directors and employees may also solicit proxies in person, by telephone, or by other means of communication. Directors and employees will not be paid any additional compensation for soliciting proxies. We may also reimburse brokerage firms, banks and other agents for the cost of forwarding proxy materials to beneficial owners.
What does it mean if I receive more than one proxy card?
      If you receive more than one proxy card, your shares are registered in more than one name or are registered in different accounts. Please complete, sign and returneachproxy card to ensure that all of your shares are voted.

2


Can I change my vote after submitting my proxy?
      Yes. You may revoke your proxy at any time before the final vote at the meeting. If you are the record holder of your shares, you may revoke your proxy in any one of three ways:
• You may submit another properly completed proxy card with a later date.
• You may send a written notice that you are revoking your proxy to Molecular Devices’ Secretary at 1311 Orleans Drive, Sunnyvale, California 94089.
• You may attend the Annual Meeting and vote in person. Simply attending the meeting will not, by itself, revoke your proxy.
      If your shares are held by your broker or bank as a nominee or agent, you should follow the instructions provided by your broker or bank.
When are stockholder proposals due for next year’s Annual Meeting?
      To be considered for inclusion in next year’s proxy materials, your proposal must be submitted in writing by December 27, 2005, to Molecular Devices’ Secretary at 1311 Orleans Drive, Sunnyvale, California 94089. However, if Molecular Devices’ 2006 Annual Meeting of Stockholders is not held between April 26, 2006 and June 25, 2006, then the deadline will be a reasonable time prior to the time we begin to print and mail our proxy materials. If you wish to bring a proposal before the stockholders at next year’s annual meeting that is not included in next year’s proxy materials, you must notify Molecular Devices’ Secretary, in writing, not later than the close of business on April 23, 2001March 27, 2006, nor earlier than the Company had outstandingclose of business on February 25, 2006. We also advise you to review Molecular Devices’ Bylaws, which contain additional requirements about advance notice of stockholder proposals and entitleddirector nominations. If you do not comply with these requirements, you will not be able to vote 16,532,862 shares of Common Stock. Each holder of record of Common Stock on such datemake a stockholder proposal or director nomination at next year’s annual meeting.
How are votes counted?
      Votes will be entitled to one vote for each share held on all matters to be voted upon at the Annual Meeting. All votes will be tabulatedcounted by the inspector of election appointed for the meeting, who will separately tabulate affirmativecount “For” and, negativewith respect to proposals other than the election of directors, “Against” votes, abstentions and broker non-votes. In addition, with respect to the election of directors, the inspector of election will count the number of “Withhold” votes received by each nominee. A “broker non-vote” occurs when a nominee holding shares for a beneficial owner does not vote on a particular proposal because the nominee does not have discretionary voting power with respect to that proposal and has not received instructions with respect to that proposal from the beneficial owner (despite voting on at least one other proposal for which it does have discretionary authority or for which it has received instructions). Abstentions will be counted towards the tabulation of votes cast on proposals presented to the stockholdersvote total for each proposal, and will have the same effect as negative“Against” votes. Except for Proposal 3, brokerBroker non-votes arehave no effect and will not be counted towards a quorum, but are not countedthe vote total for any purposeproposal.
      If your shares are held by your broker as your nominee (that is, in determining whether“street name”), you will need to obtain a matter has been approved. Withproxy form from the institution that holds your shares and follow the instructions included on that form regarding how to instruct your broker to vote your shares. If you do not give instructions to your broker, your broker can vote your shares with respect to Proposal “discretionary” items, but not with respect to “non-discretionary” items. Discretionary items are proposals considered routine under the rules of the New York Stock Exchange on which your broker may vote shares held in street name in the absence of your voting instructions. On non-discretionary items for which you do not give your broker instructions, the shares will be treated as broker non-votes.
How many votes are needed to approve each proposal?
• For the election of directors, the eight nominees receiving the most “For” votes (among votes properly cast in person or by proxy) will be elected. Broker non-votes will count towards the quorum but will have no effect.

3 abstentions


• Proposal No. 2, the approval of the Molecular Devices Corporation 2005 Equity Incentive Plan, must receive a “For” vote from the majority of shares present and entitled to vote either in person or by proxy to be approved. If you “Abstain” from voting, it will have the same effect as an “Against” vote. Broker non-votes will have no effect.
• Proposal No. 3, the ratification of Ernst & Young LLP as Molecular Devices’ independent registered public accounting firm for the fiscal year ending December 31, 2005, must receive a “For” vote from the majority of shares present and entitled to vote either in person or by proxy to be approved. If you “Abstain” from voting, it will have the same effect as an “Against” vote. Broker non-votes will have no effect.
What is the quorum requirement?
      A quorum of stockholders is necessary to hold a valid meeting. A quorum will be present if at least a majority of the outstanding shares entitled to vote are represented by votes at the meeting or by proxy. On the record date, there were 16,920,474 shares outstanding and entitled to vote.
      Your shares will be counted towards the quorum only if you submit a valid proxy (or one is submitted on your behalf by your broker, bank or other nominee) or if you vote in person at the meeting. Abstentions and broker non-votes will havebe counted towards the same effect as negative votes. REVOCABILITY OF PROXIES Any person giving a proxy pursuant to this solicitation hasquorum requirement. If there is no quorum, the power to revoke it at any time before it is voted. It may be revoked by filing with the Secretarychairman of the Company at the Company's principal executive office, 1311 Orleans Drive, Sunnyvale, California 94089, a written notice of revocationmeeting or a duly executed proxy bearing a later date, or it may be revoked by attendingmajority of the meeting and voting in person. Attendancevotes present at the meeting may adjourn the meeting to another date.
How can I find out the results of the voting at the Annual Meeting?
      Preliminary voting results will not, by itself, revoke a proxy. STOCKHOLDER PROPOSALS The deadline for submitting a stockholder proposal for inclusionbe announced at the Annual Meeting. Final voting results will be published in the Company's proxy statement and form of proxyMolecular Devices’ quarterly report on Form 10-Q for the Company's 2002 annual meetingsecond quarter of stockholders pursuant to Rule 14a-8 of the Securities and Exchange Commission is December 13, 2001. Stockholders wishing to submit proposals or director nominations that are not to be included in such proxy statement and proxy must do so by February 11, 2002. Such proposal or nomination, however, may not be submitted before January 12, 2002. Stockholders are also advised to review the Company's Bylaws, which contain additional requirements with respect to advance notice of stockholder proposals and director nominations. 2005.

4


PROPOSAL 1
ELECTION OF DIRECTORS
      There are eight nominees for the nine Boardeight director positions presently authorized by Molecular Devices’ Board of Directors and Molecular Devices’ Certificate of Incorporation. The names of the persons who are nominees for director and their positions and offices with Molecular Devices are set forth in the Company's Bylaws.table below. Each director to be elected will hold office until the next annual meeting2006 Annual Meeting of stockholdersStockholders and until his successor is elected and has qualified, or until such director'sdirector’s earlier death, resignation or removal. Each nominee listed below is currently a director of the Company,Molecular Devices, having been previously elected by the stockholders. Lev J. Leytes, who joinedAlthough there is no formal policy, Molecular Devices encourages its directors to attend Molecular Devices’ annual meetings. Other than Dr. Keegan, none of Molecular Devices’ directors attended the Board in August 2000 in connection with the Company's acquisition of LJL BioSystems, has decided to resign from his position as a director of the Company, effective as of the date of the Annual Meeting. (Currently, the Company's Bylaws authorize nine directors; however, the Board intends to amend the Company's Bylaws, effective as of the date of the2004 Annual Meeting to reduce the authorized size of the Board to eight directors).Stockholders.
      Directors are elected by a plurality of the votes present in person or represented by proxy and entitled to vote.vote at the Annual Meeting. Shares represented by executed proxies will be voted, if authority to do so is not withheld, for the election of the eight nominees named below. In the event that any nominee should be unavailable for election as a result of an unexpected occurrence, suchyour shares will be voted for the election of such substitute nominee as management may propose. Proxies may not be voted for more than eight directors, however. Each personof the current directors has been nominated for electionand has agreed to serve if electedstand for election and management has no reason to believe that any nominee will be unable to serve. NOMINEES
      The namesfollowing is a brief biography of the nominees and certain information about them are set forth below: each nominee for director, including their respective ages as of March 31, 2005.
NAME AGE PRINCIPAL OCCUPATION/POSITION HELD WITH THE COMPANY - ---- --- ---------------------------------------------------
NameAgePosition Held with Molecular Devices
Joseph D. Keegan, Ph.D.................. 47 President, Chief Executive Officer Moshe H. Alafi.......................... 72 General Partner, Alafi Capital Company David L. Anderson....................... 57 Managing Director, Sutter Hill Ventures A. Blaine Bowman........................ 54 President, Chief Executive Officer, Dionex Corporation Paul Goddard, Ph.D...................... Ph.D.51President and Chief Executive Officer, Elan Pharmaceuticals AndreOfficer; Director
Moshe H. Alafi76Director
David L. Anderson61Director
A. Blaine Bowman58Director
Paul Goddard, Ph.D.55Director
André F. Marion......................... 65 Independent Investor Marion69Director
Harden M. McConnell, Ph.D............... 73 Robert Eckles Swain Professor of Physical Chemistry at Stanford University, Management Consultant Ph.D.77Director
J. Allan Waitz, Ph.D.................... 65 Independent Investor Ph.D.69Director
Joseph D. Keegan, Ph.D., was appointed as President and Chief Executive Officer of the CompanyMolecular Devices effective March 30, 1998. From 1992 to 1998, Dr. Keegan served in various positions at Becton Dickinson and Company, a research and diagnostic company, including the positions of Vice President, Sales and Service, Vice President, General Manager of the Immunocytometry Systems Division and, most recently, President of the Worldwide Tissue Culture Business. From 1987 to 1992, he was employed by LEICA, Inc., a microscope manufacturer, where he held various senior management positions. Dr. Keegan is a memberdirector of the Board of Directors of Argonex,Essen Instruments, Inc. Dr. Keegan holds a Ph.D. in Chemistry from Stanford University. 2
Moshe H. Alafihas been a director of the CompanyMolecular Devices since 1985. Mr. Alafi has been the general partnerGeneral Partner of Alafi Capital Company, which specializes in forming new companies in the medical, pharmaceutical and biological fields, since January 1984.
David L. Andersonhas been a director of the CompanyMolecular Devices since 1983. Mr. Anderson has been managing directora Managing Director of the General Partner of Sutter Hill Ventures, aA California limited partnership,Limited Partnership, a venture capital investment partnership,company, since 1974. Mr. Anderson is also a director of Dionex Corporation, (Dionex), a leading supplier of analytical instrumentation, and Broadvision,BroadVision, Inc., a software company.
A. Blaine Bowmanhas been a director of the CompanyMolecular Devices since 1985. Mr. Bowman is and has been since 1980,Chairman of the board of Dionex Corporation, a leading supplier of analytical instrumentation. Prior to that, he was President, Chief Executive Officer and a director of Dionex. Dionex Corporation from 1980 to 2002.

5


Paul Goddard, Ph.D., has been a director of the CompanyMolecular Devices since September 1995. Since November 2000, Dr. Goddard ishas served as the Chairman of Advanced Polymer Systems,A.P. Pharma, Inc., which develops, manufactures and sells patented delivery systems to enhance the safety and effectiveness of prescription products, and Alchemia Inc., a private Australian company.products. Dr. Goddard served as President and Chief Executive Officer of Elan Pharmaceuticals, a division of Elan PLC, from 20001998 through 1998.2000. Dr. Goddard served as Chairman, Chief Executive Officer and Director of Neurex Corporation from 1991 through 1998 when Neurex Corporation was acquired by Elan PLC. From 1976 through February 1991, Dr. Goddard was employed by SmithKline Beecham Corp., a pharmaceutical company, and its predecessors in various positions, most recently as Senior Vice President and Director, Japan-Pacific. In addition to his position at A.P. Pharma, Inc., he is also the Chairman of the board of Xenoport Inc. and Aryx Pharmaceuticals. He is also a director of Onyx PharmaceuticalPharmaceuticals, Inc. Andreand Adolor Corporation.
André F. Marionhas been a director of the CompanyMolecular Devices since September 1995. Mr. Marion was a founder of Applied Biosystems, Inc., a supplier of instruments for biotechnology research, and served as its Chief Operating Officer from 1983 to 1986, its President from 1985 to 1993, its Chief Executive Officer from 1986 to 1993 and its Chairman of the Boardboard from 1987 to February 1993, when it merged with the Perkin-Elmer Corporation, a manufacturer of analytical instruments. Mr. Marion served as Vice President of Perkin-Elmer Corporation and President of its Applied Biosystems Division until his retirement in February 1995. Mr. Marion is presently a management consultant and also a director of Cygnus, Inc., Applied Imaging Corp., Alpha M.O.S., Aclara Biosciences Corp., Integrated Biosystems Inc. and Quantum Dot Corp. of several privately held corporations.
Harden M. McConnell, Ph.D., founder of the Company,Molecular Devices, has been a director of and a consultant to the CompanyMolecular Devices since the Company'sits inception in July 1983. He is the Robert Eckles Swain Professor of Physical Chemistry, Emeritus at Stanford University and a member of the National Academy of Sciences. Dr. McConnell has received many awards in recognition of his scientific work, mostwork. Most recently these include the 1987 Pauling Medal for Chemistry and, in 1988, the National Academy of Sciences Award in Chemical Sciences. Dr. McConnell has also received the Wolf Prize (1984), the Wheland Medal (1988), the National Medal of Science (1989), the Peter Debeye Award in Physical Chemistry (1990) and, the Bruker Prize of the Royal Society of Chemistry (1995) and the Welch Award (2002). Dr. McConnell holds a Ph.D. degree from the California Institute of Technology.
J. Allan Waitz, Ph.D., has been a director of the CompanyMolecular Devices since 1990. Dr. Waitz is currently retired. Until 1992, Dr. Waitz was President and Chief Executive Officer of DNAX Research Institute of Molecular and Cellular Biology, Inc., a subsidiary of Schering-Plough Corporation, a pharmaceutical company. From 1991 through December 1996, Dr. Waitz served as chairperson of the Area Committee on Microbiology of the National Committee for Clinical Laboratory Standards. THE BOARD OF DIRECTORS RECOMMENDS A VOTE IN FAVOR OF EACH NAMED NOMINEE. DIRECTOR WHOSE TERM EXPIRES AT THE ANNUAL MEETING Lev J. Leytes, age 45, has been a director
Independence of the Company since August 2000. He co-founded LJL BioSystems, Inc.Board of Directors
      As required under the Nasdaq Stock Market (“Nasdaq”) listing standards, a majority of the members of a listed company’s board of directors must qualify as “independent,” as affirmatively determined by the board of directors. Molecular Devices’ Board of Directors consults with Molecular Devices’ counsel to ensure that the Board’s determinations are consistent with all relevant securities and servedother laws and regulations regarding the definition of “independent,” including those set forth in pertinent listing standards of the Nasdaq, as in effect time to time.
      Consistent with these considerations, after review of all relevant transactions or relationships between each director, or any of his or her family members, and Molecular Devices, its senior management and its independent registered public accounting firm, the Board has affirmatively determined that all of Molecular Devices’ directors are independent directors within the meaning of the applicable Nasdaq listing standards, except Dr. Keegan, the President and Chief Executive Officer and Chairman since its inception in 1988 until it merged with the Company in August 2000. Prior to the founding of LJL BioSystems, Mr. Leytes worked in various technical and management positions at Beckman Instruments, Inc., a life sciences company, as well as the Company. Mr. Leytes holds an M.S. in engineering from the Moscow Engineering Institute. 3 BOARD COMMITTEES AND MEETINGS During the fiscal year ended December 31, 2000Molecular Devices.

6


Information Regarding the Board of Directors held six meetings. Theand its Committees
      Molecular Devices’ Board of Directors has an Audit Committee, a Compensation Committee and a CompensationNominating Committee. The following table provides membership information for 2004 for each of these committees:
NameAuditCompensationNominating
Moshe H. AlafiX
David L. AndersonXX
A. Blaine BowmanXX
Paul Goddard, Ph.D. XX
André F. MarionXXX
J. Allan Waitz, Ph.D. XX
      Below is a description of each committee of the Board does not have a nominating committee.of Directors. Each of the committees has authority to engage legal counsel or other experts or consultants, as it deems appropriate to carry out its responsibilities. The Board of Directors has determined that each member of each committee meets the applicable rules and regulations regarding “independence” and that each member is free of any relationship that would interfere with his individual exercise of independent judgment with regard to Molecular Devices.
Audit Committee
      The Audit Committee meets with the Company'sMolecular Devices’ independent auditorsregistered public accounting firm at least annually to review, the resultsupon completion of the annual audit, and discussfinancial results for the year, as reported in Molecular Devices’ financial statements; recommends toretains Molecular Devices’ independent registered public accounting firm; is responsible for the Boardengagement of Molecular Devices’ independent registered public accounting firm, including the independent auditorsscope, extent and procedures of the audit and the compensation to be retained; overseespaid therefor; assists and interacts with Molecular Devices’ independent registered public accounting firm so that it may carry out its duties in the most efficient and cost effective manner; maintains a log of complaints regarding accounting or auditing matters submitted by employees and conducts the appropriate investigation; and determines and approves all professional services provided to Molecular Devices by its independent registered public accounting firm, prior to commencement of the engagement, and considers the possible effect of such services on the independence of theMolecular Devices’ independent auditors; evaluates the independent auditors' performance; and receives and considers the independent auditors' comments as to controls, adequacy of staff and management performance and procedures in connection with audit and financial controls.registered public accounting firm. The Audit Committee meets at least quarterly. The Audit Committee is governed by a written Audit Committee Charter adopted by the Board of Directors. The Audit Committee charter can be found in the Corporate Governance section of the Investor Relations section of Molecular Devices’ website atwww.moleculardevices.com. The Audit Committee is currently composed of three directors: Dr. McConnell,Mr. Bowman, Dr. Goddard and Mr. Bowman. It met one timeMarion. The Audit Committee held seven meetings during the fiscal year ended December 31, 2000. All2004. The Board of Directors annually reviews the Nasdaq listing standards definition of independence for Audit Committee members and has determined that all members of the Company'sMolecular Devices’ Audit Committee are independent (as independence is currently defined in Rule 4200(a)(14)4350(d)(2)(A)(i) and (ii) of the NASDNasdaq listing standards). The Board of Directors has also determined that each member of the Audit Committee has adopted a written Audit Committee Charter that is attached heretoqualifies as Appendix A.an “audit committee financial expert,” as defined in the Securities and Exchange Commission rules.
Compensation Committee
      The Compensation Committee makes recommendations concerning salaries and incentive compensation, awards stock options to employees and consultants under the Company'sMolecular Devices’ stock option plans and otherwise determines compensation levels and performs such other functions regarding compensation as the Board may delegate. The Compensation Committee is currently composed of three outside directors: Mr. Anderson, Mr. Marion and Dr. Waitz. It met one timeThe Compensation Committee held three meetings during the fiscal year ended December 31, 2000. During2004. All members of Molecular Devices’ Compensation Committee are independent (as independence is defined in Rule 4200(a)(15) of the Nasdaq listing standards).

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Nominating Committee
      The Nominating Committee is responsible for (1) identifying, reviewing and evaluating candidates to serve as directors of Molecular Devices; (2) serving as a focal point for communication between such candidates, non-committee directors and Molecular Devices’ management; (3) recommending such candidates to the Board; and (4) making other recommendations to the Board regarding affairs relating to the directors of Molecular Devices, including director compensation. In this regard, the Nominating Committee recommended to the full Board that each of the nominees for director at the Annual Meeting be nominated for director and be submitted to the stockholders for election at the Annual Meeting. The Nominating Committee charter can be found in the Corporate Governance section of the Investor Relations section of Molecular Devices’ website atwww.moleculardevices.com. The Nominating Committee is currently composed of Mr. Bowman, Dr. Goddard, Mr. Alafi, Mr. Marion, Dr. Waitz and Mr. Anderson. All members of Molecular Devices’ Nominating Committee are independent (as independence is defined in Rule 4200(a)(15) of the Nasdaq listing standards). The Nominating Committee did not hold any meetings during the fiscal year ended December 31, 2000,2004, as all previous decisions regarding director nominations were made by the Board as a whole. The Nominating Committee met on February 16, 2005 to review and recommend director nominations submitted in this proxy statement, which nominations were subsequently approved by the Board.
      The Nominating Committee believes that candidates for director should have certain minimum qualifications, including being able to read and understand basic financial statements, being over 21 years of age and having the highest personal integrity and ethics. The Committee also intends to consider such factors as possessing relevant expertise upon which to be able to offer advice and guidance to management, having sufficient time to devote to the affairs of Molecular Devices, demonstrated excellence in his or her field, having the ability to exercise sound business judgment and having the commitment to rigorously represent the long-term interests of Molecular Devices’ stockholders. However, the Committee retains the right to modify these qualifications from time to time. Candidates for director nominees are evaluated by the Nominating Committee in the context of the current composition of the Board, the operating requirements of Molecular Devices and the long-term interests of Molecular Devices’ stockholders. In conducting this assessment, the Committee considers the criteria for director qualifications set by the Board of Directors, as well as diversity, age, skills, and such other factors as it deems appropriate given the current needs of the Board and Molecular Devices to maintain a balance of knowledge, experience and capability. In the case of incumbent directors whose terms of office are set to expire, the Nominating Committee reviews such directors’ overall service to Molecular Devices during their term, including the number of meetings attended, level of participation, quality of performance, and any other relationships and transactions that might impair such directors’ independence. In the case of new director candidates, the Nominating Committee will also determine whether the nominee must be independent for Nasdaq purposes, which determination is based upon applicable Nasdaq listing standards, applicable SEC rules and regulations and the advice of counsel, if necessary. The Nominating Committee may also use its network of contacts to compile a list of potential candidates, but may also engage, if it deems appropriate, a professional search firm. To date, Molecular Devices has not paid a fee to any third party to assist in the process of identifying or evaluating director candidates. The Nominating Committee conducts any appropriate and necessary inquiries into the backgrounds and qualifications of possible candidates after considering the function and needs of the Board. The Nominating Committee meets to discuss and consider such candidates’ qualifications and then selects a nominee for recommendation to the Board by majority vote.
      The Nominating Committee will consider director candidates recommended by stockholders. The Nominating Committee does not intend to alter the manner in which it evaluates candidates, including the minimum criteria set forth above, based on whether the candidate was recommended by a stockholder or not. Stockholders who wish to recommend individuals for consideration by the Nominating Committee to become nominees for election to the Board for inclusion in the proxy statement for Molecular Devices’ annual meeting of stockholders are welcome to deliver a written recommendation to the Nominating Committee at the following address: 1311 Orleans Drive, Sunnyvale, California 94089 at least 120 days prior to the anniversary date of the mailing of Molecular Devices’ proxy statement for the last annual meeting of stockholders. Please

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include with all submissions the full name of the proposed nominee, a description of the proposed nominee’s business experience for at least the previous five years, complete biographical information, a description of the proposed nominee’s qualifications as a director and a representation that the nominating stockholder is a beneficial or record owner of Molecular Devices’ stock. Any such submission must be accompanied by the written consent of the proposed nominee to be named as a nominee and to serve as a director if elected. To date, the Nominating Committee has not received any such submission from a stockholder of Molecular Devices.
Meetings of the Board of Directors
      The Board of Directors met six times during the last fiscal year and acted twice by unanimous written consent. All directors except for Mr. Alafi Dr. Goddard and Dr. McConnellGoddard attended at least 75% of the aggregatemeetings of the Board held during the period for which they were a director, and all directors except for Dr. Goddard attended at least 75% of the meetings of the Board and of the committees on which they served held during the period for which they were a committee member. Dr. Goddard attended four meetings of the Board and five meetings of the Audit Committee held during the fiscal year ended December 31, 2004; however, he was unable to attend two meetings of the Board and two meetings of the Audit Committee due to scheduling conflicts. Mr. Alafi attended three meetings of the Board held during the fiscal year ended December 31, 2004; however, he was unable to attend three meetings of the Board due to scheduling conflicts.
Stockholder Communications with the Board of Directors
      Molecular Devices’ Board of Directors has adopted a formal process by which stockholders may communicate with the Board or any of its directors. This information is available in the Corporate Governance section of the Investor Relations section of Molecular Devices’ website atwww.moleculardevices.com.
Code of Conduct
      Molecular Devices has adopted the Molecular Devices Corporation Code of Conduct that applies to all officers, directors and employees. The Code of Conduct is available in the Corporate Governance section of the Investor Relations section of Molecular Devices’ website atwww.moleculardevices.com. If Molecular Devices makes any substantive amendments to the Code of Conduct or grants any waiver from a provision of the Code to any executive officer or director, Molecular Devices will promptly disclose the nature of the amendment or committee member, respectively. 4 waiver on its website at the location and address specified above.
REPORT OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS (1)1
      The audit committeeAudit Committee oversees the Company'sMolecular Devices’ financial reporting process on behalf of the boardBoard of directors.Directors. Management has the primary responsibility for the financial statements and the reporting process, including the systems of internal controls.control over financial reporting and disclosure controls and procedures. In fulfilling its oversight responsibilities, the committeeAudit Committee reviewed the audited consolidated financial statements included in theMolecular Devices’ Annual Report on Form 10-K for the year ended December 31, 2004 with management, including a discussion of the quality, not just the acceptability, of the accounting principles, the reasonableness of significant judgments, and the clarity of disclosures in the financial statements.
      The committee reviewed with the independent auditors, who areAudit Committee is responsible for expressing an opinion onreviewing, approving and managing the conformityengagement of those audited financial statements withMolecular Devices’ independent registered public accounting principles generally accepted infirm, including the United States, their judgments as to the quality, not just the acceptability,scope, extent and procedures of the Company's accounting principlesannual audit and suchcompensation to be paid therefor, and all other matters as are required to be discussed with the committee under auditing standards generally accepted in the United States, including those described in Statement on Auditing Standards No. 61, as amended, "Communication with Audit Committees" and discussed and reviewed results of the independent auditors' examination of the financial statements. In addition, the committee has discussed with the independent auditors the auditors' independence from management and the Company and received a letter and other written disclosures from independent auditors, as required by the Independence Standards Board Standard No. Committee deems
1 "Independence Discussions with Audit Committees." The committee also considered whether provision of non-audit services are compatible with maintaining auditor's independence. The committee discussed with the Company's independent auditors the overall scope and plans for their audits. The committee meets with the independent auditors, with and without management present, to discuss the results of their examinations, their evaluations of the Company's internal controls, and the overall quality of the Company's financial reporting. The committee held one meeting during fiscal year 2000. In reliance on the reviews and discussions referred to above, the committee recommended to the board of directors (and the board has approved) that the audited financial statements be included in the Annual Report on Form 10-K for the year ended December 31, 2000 for filing with the Securities and Exchange Commission. The committee has recommended to the board or directors the selection of the Company's independent auditors. AUDIT COMMITTEE A. Blaine Bowman Paul Goddard, Ph.D. Harden M. McConnell, Ph.D. - -------- (1) This material in this report is not "soliciting“soliciting material," is not deemed "filed"“filed” with the SEC and is not to be incorporated by reference ininto any filing of the CompanyMolecular Devices under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing. 5 PROPOSAL 2 APPROVAL OF 1995 STOCK OPTION PLAN, AS AMENDED

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appropriate, including Molecular Devices’ independent registered public accounting firm’s accountability to the Board and the Audit Committee. The Audit Committee reviewed with Molecular Devices’ independent registered public accounting firm, which is responsible for expressing an opinion on the conformity of audited financial statements with generally accepted accounting principles, its judgment as to the quality, not just the acceptability, of Molecular Devices’ accounting principles and such other matters as are required to be discussed with the Audit Committee under auditing standards generally accepted in the United States, including those described in Statement on Auditing Standards No. 61, as amended,“Communication with Audit Committees,” and discussed and reviewed the results of Molecular Devices’ independent registered public accounting firm’s examination of the financial statements. In October 1995,addition, the Audit Committee discussed with Molecular Devices’ independent registered public accounting firm the independent registered public accounting firm’s independence from management and Molecular Devices, including the matters in the written disclosures required by the Independence Standards Board Standard No. 1,“Independence Discussions with Audit Committees.” The Audit Committee also considered whether the provision of non-audit services was compatible with maintaining the independent registered public accounting firm’s independence.
      The Audit Committee discussed with Molecular Devices’ independent registered public accounting firm the overall scope and plans for its audits. The Audit Committee meets with Molecular Devices’ independent registered public accounting firm, with and without management present, to discuss the results of its examinations, its evaluations of Molecular Devices’ internal control over financial reporting and the overall quality of Molecular Devices’ financial reporting. The Audit Committee held seven meetings during the fiscal year ended December 31, 2004.
      In reliance on the reviews and discussions referred to above, the Audit Committee recommended to the Board of Directors (and the Board has approved) that the audited consolidated financial statements be included in Molecular Devices’ Annual Report on Form 10-K for the year ended December 31, 2004 for filing with the Securities and Exchange Commission. The Audit Committee has also retained, subject to stockholder ratification described in Proposal 3, Ernst & Young LLP as Molecular Devices’ independent registered public accounting firm for the fiscal year ending December 31, 2005.
Audit Committee
A. Blaine Bowman
Paul Goddard, Ph.D.
André F. Marion

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PROPOSAL 2
APPROVAL OF THE MOLECULAR DEVICES CORPORATION
2005 EQUITY INCENTIVE PLAN
      On April 13, 2005, the Board adopted the Molecular Devices Corporation 2005 Equity Incentive Plan (the “2005 Equity Plan”), subject to stockholder approval. The 2005 Equity Plan is an amendment and the stockholders subsequently approved, the Company'srestatement of Molecular Devices’ 1995 Stock Option Plan (the "Option Plan"“1995 Option Plan”). In January 1999,The 1995 Option Plan was adopted by the Board amendedin October 1995 and was approved by the stockholders. The Board adopted the 2005 Equity Plan in connection with the upcoming termination of the 1995 Option Plan, which will terminate according to make certain technical amendmentsits terms in October 2005 if this Proposal 2 is not approved by the stockholders. Options granted under the 1995 Option Plan prior to its amendment and restatement will continue to be subject to the terms and conditions as set forth in the agreements evidencing such options and the terms of the 1995 Option Plan. The key terms of the 1995 Option Plan are similar to those of the 2005 Equity Plan, except as noted otherwise.
      There is an aggregate of 4,333,011 shares of common stock reserved for issuance under the 2005 Equity Plan. This Proposal 2 does not seek an increase in the number of shares ofthat may be issued under the Company's Common Stock authorized2005 Equity Plan beyond those reserved for issuance to 2,750,000 shares. The stockholders subsequently approved such amendment. As of February 15, 2001,under the 1995 Option Plan. At December 31, 2004, options (net of canceledcancelled or expired options) covering an aggregate of 1,235,5633,162,461 shares of the Company's Common Stock had been granted andunder the 1995 Option Plan, of which options covering an aggregate of 2,577,427 shares were outstanding, under the Option Plan, and only 313,2111,170,550 shares of Common Stock (plus any shares that might in the future be returned to the 1995 Option Plan as a result of cancellations or expiration of options or the reacquisition by the Company of issued shares)options) remained available for future grant under the 1995 Option Plan. In August 2000, the Company completed its acquisition of LJL BioSystems, Inc. As part
      The approval of the merger, the Company assumed LJL BioSystems' 19942005 Equity Incentive Plan 1997 Stock Plan and 1998 Directors' Stock Option Plan (the "LJL Plans"), and all outstanding optionswill allow Molecular Devices to purchase shares of LJL BioSystems common stock were converted into options to purchase Common Stock of the Company. As of February 15, 2001, options to acquire 260,406 shares of the Company's Common Stock were outstanding under the LJL Plans, and an aggregate of 529,009 shares of the Company's Common Stock remained available for grant under the LJL Plans. In February 2001, the Board amended the Company's Option Plan, subject to stockholder approval, to increase the number of shares of Common Stock authorized for issuance under the Option Plan by 1,000,000 shares. The Board has approved, subject to stockholder approval of this Proposal 2, an amendment to the LJL Plans to prohibit future grants under the plans and to decrease the aggregate number of shares authorized for issuance under the plan to the number of shares subject to outstanding options under the plan. Because the integration of LJL BioSystems with the Company has been completed, the Board believes it to be in the best interests of the Company to grant options in the future to employees under a single plan, the Company's Option Plan. However, the amendment of the LJL Plans will not become effective unless Proposal 2 is approved by the stockholders. Based on the number of shares subject to outstanding options as of February 15, 2001, the net effect of the amendment of the Company's Option Plan and the amendment of the LJL Plans is an increase in the number of shares authorized under the Company's employee equity incentive plans of 470,991 shares. The Board adopted these amendments in order to ensure that the Company can continue to grant stock options and other awards at levels determined appropriate by the Board. In April 2001,The 2005 Equity Plan will also provide Molecular Devices with greater flexibility in designing equity incentives in an environment where a number of companies have moved from traditional option grants to other stock or stock-based awards, including stock appreciation rights, stock purchase awards, stock bonus awards and stock unit awards. Accordingly, the Board approved an amendment2005 Equity Plan will allow Molecular Devices to utilize a broad array of equity incentives in order to secure and retain the Option Planservices of employees of Molecular Devices and its affiliates and directors of Molecular Devices, and to eliminate certain provisions that concernprovide incentives for such persons to exert maximum efforts for the repricingsuccess of options granted thereunder. These provisions had expressly conferred authority on the Board to offer optionholders the opportunity to replace outstanding higher priced options with new lower priced options in the event of a decline in the value of the Company's Common Stock.Molecular Devices and its affiliates.
      Stockholders are requested in this Proposal 2 to approve the Company's 1995 Stock Option Plan, as amended, to increase the aggregate number of shares of Common Stock authorized for issuance under such plan by 1,000,000 shares (resulting in a net increase in the shares authorized for issuance under the Company's employee equity incentive plans of 470,991 shares based on a concurrent reduction in the number of shares authorized under the LJL Plans, as described above). To summarize, if this proposal is approved: a) The aggregate number of shares of common stock authorized for issuance under the 1995 Stock Option Plan will be increased by 1,000,000 shares, b) the LJL Plans will be amended to decrease the aggregate number of shares of common stock authorized for issuance under the plans by 529,009, and c) the net increase in shares authorized for issuance under the Company's employee equity incentive plans will be 470,991.2005 Equity Plan. The affirmative vote of the holders of a majority of the shares present in person or represented by proxy and entitled to vote at the meeting will be required to approve the amendment to the Company's Option2005 Equity Plan. Abstentions will be counted toward the tabulation of votes cast on proposals presented to the stockholders and will have the same effect as negative votes. Broker non-votes are counted towards a quorum, but are not counted for any purpose in determining whether this matter has been approved. For purposes of this vote abstentions and broker non-votes will not be counted for any purpose in determining whether this matter has been approved.
THE BOARD OF DIRECTORS RECOMMENDS
A VOTE IN FAVOR OF PROPOSAL 2. 6
      The essential features of the Option2005 Equity Plan are outlined below: GENERAL
General
      The Option2005 Equity Plan provides for the grant of bothincentive stock options, nonstatutory stock options, stock appreciation rights, stock purchase awards, stock bonus awards, stock unit awards, and other forms of equity compensation (collectively, “stock awards”). By contrast, the 1995 Option Plan provides only for the grant of incentive and nonstatutory stock options. Incentive stock options granted under the Option2005 Equity Plan are intended to qualify as "incentive“incentive stock options"options” within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the "Code"“Code”). Nonstatutory stock options granted under the Option2005 Equity Plan are not intended to qualify as incentive stock options under the Code. See "Federal“Federal Income Tax Information"Information” for a discussion of the tax treatment of options. PURPOSEstock awards.

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Purpose
      The Board adopted the Option2005 Equity Plan to provide a means by which employees, directors and consultants of the Company and its affiliates may be given an opportunity to purchase stock in the Company, to assist in retaining the services of such persons, to secure and retain the services of persons capable of filling such positionsemployees (including officers) and non-employee directors eligible to receive stock awards, to provide incentives for such personsindividuals to exert maximum efforts for the success of the Company and its affiliates. All of the approximately 370 employees, directors and consultants of the CompanyMolecular Devices and its affiliates, areand to provide a means by which such eligible individuals may be given an opportunity to participatebenefit from increases in the Option Plan. ADMINISTRATIONvalue of Molecular Devices’ common stock through the grant of stock awards.
Administration
      The Board administers the Option2005 Equity Plan. Subject to the provisions of the Option2005 Equity Plan, the Board has the powerauthority to construe and interpret the Option Plan andplan, to determine the persons to whom and the dates on which optionsstock awards will be granted, the number of shares of Common Stockcommon stock to be subject to each option,stock award, the time or times during the term of each optionstock award within which all or a portion of such optionthe award may be exercised, the exercise, purchase, or strike price of each stock award, the type of consideration permitted to exercise or purchase each stock award, and other terms of the option.stock awards.
      The Board has the powerauthority to delegate some or all of the administration of the Option2005 Equity Plan to a committee composed of not fewer than two members of the Board.or committees. In the discretion of the Board, a committee may consist solely of two or more outside directors in accordance with Section 162(m)“non-employee directors” within the meaning of Rule 16b-3 of the CodeExchange Act or solely of two or more non-employee directors in accordance with Rule 16b-3“outside directors” within the meaning of Section 162(m) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The Board has notCode. If administration is delegated administration of the Option Plan to a committee, the committee has the authority to delegate certain administrative powers to a subcommittee of the Board.one or more members. As used herein with respect to the Option2005 Equity Plan, the "Board"“Board” refers to any committee the Board appoints or, if applicable, any subcommittee, as well as to the Board itself. The regulations under Section 162(m) of the Code require that the directors who serve as members of the committee must be "outside directors." The Option Plan provides that, in the Board's discretion, directors serving on the committee may be "outside directors" within the meaning of Section 162(m). This limitation would exclude from the committee directors who are (i) current employees of the Company or an affiliate, (ii) former employees of the Company or an affiliate receiving compensation for past services (other than benefits under a tax-qualified pension Option Plan), (iii) current and former officers of the Company or an affiliate, (iv) directors currently receiving direct or indirect remuneration from the Company or an affiliate in any capacity (other than as a director), and (v) any other person who is otherwise considered an "outside director" for purposes of Section 162(m). The definition of an "outside director" under Section 162(m) is generally narrower than the definition of a "non-employee director" under Rule 16b-3 of the Exchange Act. ELIGIBILITY
Eligibility
      Incentive stock options may be granted under the Option2005 Equity Plan only to employees (including officers) of the CompanyMolecular Devices and its affiliates. Employees (including officers), directors and consultants of both the CompanyMolecular Devices and its affiliates, and non-employee directors of Molecular Devices, are eligible to receive all other types of stock awards under the 2005 Equity Plan. By contrast, under the 1995 Stock Option Plan, nonstatutory stock options undermay be granted to employees, directors and consultants. All of the Optionapproximately 545 employees of Molecular Devices and its affiliates and seven non-employee directors of Molecular Devices are eligible to participate in the 2005 Equity Plan.
      No incentive stock option may be granted under the Option2005 Equity Plan to any person who, at the time of the grant, owns (or is deemed to own) stock possessing more than 10% of the total combined voting power of the CompanyMolecular Devices or any affiliate of the Company,its affiliates, unless the exercise price of such option is at least 110% of the fair market value of the stock subject to the option on the date of grant and the term of the option does not exceed five years from the date of grant. In addition, the aggregate fair market value, determined aton the timedate of grant, of the shares of Common Stockcommon stock with respect to 7 which incentive stock options are exercisable for the first time by an optionholdera participant during any calendar year (under the Option2005 Equity Plan and allany other such plans of the CompanyMolecular Devices and its affiliates) may not exceed $100,000. No
      Under the 2005 Equity Plan, no person may be granted optionsstock awards whose value is determined by reference to an increase over an exercise or strike price of at least 100% of the fair market value of the common stock on the date of grant under the Option2005 Equity Plan exercisable forcovering more than 500,000 shares of Common Stockcommon stock during any calendar fiscal year (the "Section“Section 162(m) Limitation"Limitation”). STOCK SUBJECT TO THE OPTION PLAN
Stock Subject to this Proposal, an aggregatethe 2005 Equity Plan
      A maximum of 2,750,0004,333,011 shares of Common Stock, plus up to 1,000,000 shares issuable in connection withcommon stock are available for issuance under the Company's terminated 1988 Stock Option2005 Equity Plan, (the "1988 Plan"), isall of which were previously reserved for issuance under the 1995 Option Plan. If optionsa stock award granted under the Option2005 Equity Plan or the 1988 Plan expireexpires or otherwise terminateterminates without being exercised in full, or if any shares of common stock issued pursuant to a stock award are forfeited to or repurchased by Molecular Devices, including, but not limited to, any repurchase or forfeiture caused by the failure to meet a contingency or

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condition required for the vesting of such shares, then the shares of Common Stockcommon stock not acquired pursuantissued under such stock award, or forfeited to such optionsor repurchased by Molecular Devices shall revert to and again becomesbecome available for issuance under the Option2005 Equity Plan. If any shares subject to a stock award are not delivered to a participant because such shares are withheld for the payment of taxes or the stock award is exercised through a reduction of shares subject to the stock award (i.e., “net exercised”), the number of shares that are not delivered shall remain available for issuance under the 2005 Equity Plan. If the Company reacquires unvestedexercise price of any stock award is satisfied by tendering shares of common stock held by the participant, then the number of shares so tendered shall remain available for issuance under the 2005 Equity Plan. Under the 1995 Option Plan, if any option granted under the 1995 Option Plan or Molecular Devices’ 1988 Stock Option Plan expires or otherwise terminates without having been exercised in full, the shares not acquired under the option will revert to and become available for issuance under the 1995 Option Plan.
      The aggregate maximum number of shares of common stock that may be issued under the Option2005 Equity Plan pursuant to the reacquiredexercise of incentive stock will not again becomeoptions is 4,333,011 shares plus the amount of any future increase in the number of shares that may be available for reissuanceissuance under the Option2005 Equity Plan. TERMS OF OPTIONS
Terms of Options
      Options may be granted under the 2005 Equity Plan pursuant to stock option agreements. The following is a description of the permissible terms of options under the Option2005 Equity Plan. Individual stock option grantsagreements may be more restrictive as to any or all of the permissible terms described below. EXERCISE PRICE; PAYMENT.Molecular Devices’ Board of Directors has adopted resolutions setting the terms of options granted to non-employee directors. For a description of these terms, please see “Terms of Options Granted to Non-Employee Directors” below.
Exercise Price. The exercise price of incentive stock options may not be less than 100% of the fair market value of the stock subject to the option on the date of the grant and, in some cases (see "Eligibility"“Eligibility” above), may not be less than 110% of such fair market value. The exercise price of nonstatutory stock options may not be less than 100% of the fair market value of the stock on the date of grant. Accordingly, if this Proposal 2 is approved by the stockholders, all options granted by Molecular Devices under the 2005 Equity Plan must carry an exercise price of at least 100% of the fair market value of the stock on the date of grant. By contrast, the exercise price of nonstatutory stock options under the 1995 Option Plan may not be less than 85% of the fair market value of the stock on the date of grant and, in some cases (see "Eligibility" above), may not be less than 110% of such fair market value. If options were granted with exercise prices below market value, deductions for compensation attributable to the exercise of such options could be limited by Section 162(m) of the Code. See "Federal Income Tax Information."grant. As of March 26, 2001,April 15, 2005, the closing price of the Company's Common StockMolecular Devices’ common stock as reported on the Nasdaq National Market System was $45.50$18.74 per share.
Consideration. The exercise price of options granted under the Option2005 Equity Plan must be paid, either in cash atto the time the option is exercised orextent permitted by applicable law and at the discretion of the Board, (i) by delivery of other Common Stock of the Company,cash or check, (ii) pursuant to a deferred paymentbroker-assisted cashless exercise, (iii) by delivery of other common stock of Molecular Devices, (iv) pursuant to a net exercise arrangement, or (iii)(iv) in any other form of legal consideration acceptable to the Board. OPTION EXERCISE.Under the 1995 Option Plan, the exercise price shall be paid either (i) in cash at the time the option is exercised, or (ii) at the discretion of the Board at the time of the grant (A) by delivery of other common stock of Molecular Devices, (B) according to a deferred payment or other arrangement, or (C) in any other form of legal consideration that may be acceptable to the Board.
Vesting. Options granted under the Option2005 Equity Plan may become exercisable in cumulative increments, ("vest")or “vest,” as determined by the Board. Vesting typically will occur during the optionholder’s continued service with Molecular Devices or an affiliate, whether such service is performed in the capacity of an employee or director (collectively, “service”) and regardless of any change in the capacity of the service performed. Shares covered by currently outstandingdifferent options granted under the Option Plan typically vest at the rate of 20-25% per year during the optionholder's employment by, or service as a director or consultant to, the Company or an affiliate (collectively, "service"). Shares covered by options granted in the future under the Option2005 Equity Plan may be subject to different vesting terms. The Board has the powerauthority to accelerate the time during which an option may vest or be exercised. In addition, options granted under the Option2005 Equity Plan may permit exercise prior to vesting, but investing. However, any unvested shares acquired under such event the optionholder may be required to enter into an early exercise stock purchase agreement that allows the Companyarrangement will be subject to repurchase unvested shares, generally at their exercise price,by Molecular Devices, should the optionholder'sparticipant’s service terminate before vesting.
Tax Withholding. To the extent provided by the terms of ana stock option an optionholderagreement, a participant may satisfy any federal, state or local tax withholding obligation relating to the exercise of suchthe option by a cash

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payment upon exercise, by authorizing the CompanyMolecular Devices to withhold a portion of the stock otherwise issuable to the optionholder,participant, by delivering already-owned Common Stockcommon stock of the CompanyMolecular Devices, or by a combination of these means. TERM.
Term. The maximum term of options granted under the Option2005 Equity Plan is 10 years, except that in certain cases (see "Eligibility")“Eligibility” above) the maximum term is five years.
Termination of Service. Options granted under the Option2005 Equity Plan generally terminate three months after termination of the optionholder'sparticipant’s service unless (i) such termination is due to the optionholder'sparticipant’s disability, in which case the option may, but need not, provide that it may be exercised (to the extent the option was exercisable at the 8 time of the termination of service) at any time within 12 months of such termination; (ii) the optionholder dies before the optionholder's service has terminated, or within a period specified in the option after termination of such service, in which case the option may, but need not, provide that it may be exercised (to the extent the option was exercisable at the time of the optionholder'stermination of service) at any time within 12 months following termination; (ii) the participant dies before the participant’s service has terminated, or within generally three months after termination of service, 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 offollowing the optionholder'sparticipant’s death by the person or persons to whom the rights to such option pass by will or by the laws of descent and distribution;have passed; or (iii) the option by its terms specifically provides otherwise. An optionholderUnder the 2005 Equity Plan, the option term may designate a beneficiary who maybe extended in the event that exercise of the option following the optionholder's death. Individual option grants by their terms may provide for exercise within a longer period of time following termination of service. RESTRICTIONS ON TRANSFER The optionholderservice is prohibited by applicable securities laws, whereas there is no such provision in the 1995 Option Plan. In no event, however, may an option be exercised beyond the expiration of its term.
Restrictions on Transfer. Unless provided otherwise by the Board, a participant in the 2005 Equity Plan may not transfer an incentive stock option otherwiseother than by will or by the laws of descent and distribution.distribution or pursuant to a domestic relations order. During the lifetime of the optionholder,participant, only the optionholderparticipant (or the transferee pursuant to a domestic relations order) may exercise an incentive stock option. In addition to transfers effective on death,A participant may also designate a beneficiary who may exercise an optionee may transfer a nonstatutory stock option pursuant to certain domestic relations orders andfollowing the transferee may then exercise such option according to its terms. Except as noted above, options granted under the Option Plan are generally nontransferable.participant’s death. Shares subject to repurchase by the Company underMolecular Devices pursuant to an early exercise stock purchase agreementarrangement may be subject to restrictions on transfer that the Board deems appropriate. ADJUSTMENT PROVISIONS Transactions not involving receipt
Terms of Options Granted to Non-Employee Directors
      If this Proposal 2 is approved by the stockholders, Molecular Devices’ 1995 Non-Employee Directors’ Stock Option Plan (the “Directors’ Plan”) will be terminated and no further option grants will be made under the Directors’ Plan. All grants of stock options to non-employee directors will thereafter be made under the 2005 Equity Plan. However, all outstanding option grants under the Directors’ Plan will continue in effect in accordance with their existing terms and conditions. In connection with the adoption of the 2005 Equity Plan, Molecular Devices’ Board of Directors adopted resolutions setting forth the terms of options to be granted to Molecular Devices’ non-employee directors, which are described below. Molecular Devices’ Board may at any time, however, adopt resolutions modifying, amending or otherwise changing the terms of the options to be granted to non-employee directors under the 2005 Equity Plan, subject to any applicable stockholder approval requirements.
Initial Grant. Each person who is, after the date of the adoption of the 2005 Equity Plan, elected for the first time to be a non-employee director automatically will, at the time of his or her initial election to the Board, receive an option to purchase 10,000 shares of Molecular Devices’ common stock.
Annual Grant. Following the date of the adoption of the 2005 Equity Plan, each non-employee director will automatically receive an additional option to purchase 4,000 shares of common stock immediately following each annual meeting of stockholders.
Exercise Price; Consideration. The exercise price of each option granted to the non-employee directors is 100% of the fair market value of the common stock subject to the option on the date of grant. The exercise price may be paid with any type of consideration permitted for other options granted under the 2005 Equity Plan.
Vesting. The options granted to non-employee directors under the 2005 Equity Plan will become exercisable in installments over a period of four years from the date of grant in equal annual installments commencing on the date one year after the date of the grant. However, attendance at no less than two-thirds (2/3) of the regularly scheduled Board meetings occurring during a vesting installment period is required for

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the options to become vested with respect to such installment. Failure to satisfy this requirement during any particular installment period will result in an abatement of the vesting of the options during the applicable installment period and the aggregate vesting period of the options will be increased by one additional year. In the event of certain change in control events (as specified in the 2005 Equity Plan), any outstanding options to a non-employee director will be fully accelerated and the option will terminate if not exercised prior to such event. Vesting will cease upon the termination of service of a non-employee director.
Term. The maximum term of options granted to the non-employee directors under the 2005 Equity Plan is ten years.
Termination of Service. If a non-employee director’s service on the Board terminates, vested options granted to such director may terminate or may be exercised for some period following termination, depending on the reasons for termination. Non-employee directors generally have twelve months after termination of service in which to exercise their options or eighteen months in the event of their death. The option term may be extended in the event that exercise of the option following termination of service is prohibited by applicable securities laws. In no event, however, may an option be exercised beyond the expiration of its term.
Terms of Stock Appreciation Rights
      Stock appreciation rights may be granted under the 2005 Equity Plan pursuant to stock appreciation rights agreements.
Exercise. Each stock appreciation right is denominated in shares of common stock equivalents. Upon exercise of a stock appreciation right, Molecular Devices will pay the participant an amount equal to the excess of (i) the aggregate fair market value of Molecular Devices’ common stock on the date of exercise, over (ii) the strike price determined by the Company,Board on the date of grant.
Settlement of Awards. The appreciation distribution upon exercise of a stock appreciation right may be paid in cash, shares of Molecular Devices’ common stock, or any other form of consideration determined by the Board.
Vesting. Stock appreciation rights vest and become exercisable at the rate specified in the stock appreciation right agreement as determined by the Board.
Termination of Service. Upon termination of a participant’s service, the participant generally may exercise any vested stock appreciation right for three months (or such aslonger or shorter period specified in the stock appreciation right agreement) after the date such service relationship ends. In no event may a merger, consolidation, reorganization, stock dividendappreciation right be exercised beyond the expiration of its term.
Terms of Stock Purchase Awards and Stock Bonus Awards
      Stock purchase awards and stock bonus awards may be granted under the 2005 Equity Plan pursuant to stock purchase award agreements and stock bonus award agreements, respectively.
Purchase Price. The purchase price for stock purchase awards must be at least the par value of Molecular Devices’ common stock.
Consideration. The purchase price for stock purchase awards may be payable either (i) in cash or by check, (ii) by past service rendered to Molecular Devices, or (iii) in any other form of legal consideration acceptable to the Board. The Board may grant stock bonus awards in consideration for past services rendered to Molecular Devices or in exchange for any other form of legal consideration acceptable to the Board, without the payment of a purchase price.
Vesting. Shares of stock acquired under a stock purchase or stock split,bonus award may, changebut need not, be subject to a repurchase option in favor of Molecular Devices or forfeiture to Molecular Devices in accordance with a vesting schedule as determined by the classBoard. The Board has the authority to accelerate the vesting of stock acquired pursuant to a stock purchase or stock bonus award.

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Termination of Service. Upon termination of a participant’s service, Molecular Devices may repurchase or otherwise reacquire any forfeited shares of stock that have not vested as of such termination under the terms of the applicable stock purchase award or stock bonus award agreement.
Restrictions on Transfer. Rights to acquire shares under a stock purchase or stock bonus award may be transferred only upon such terms and conditions as determined by the Board.
Terms of Stock Unit Awards
      Stock unit awards may be granted under the 2005 Equity Plan pursuant to stock unit award agreements.
Consideration. The purchase price, if any, for stock unit awards may be paid in any form of legal consideration acceptable to the Board.
Settlement of Awards. A stock unit award may be settled by the delivery of shares of Molecular Devices’ common stock, in cash, or by any combination of these means as determined by the Board.
Vesting. Stock unit awards vest at the rate specified in the stock unit award agreement as determined by the Board. However, at the time of grant, the Board may impose additional restrictions or conditions that delay the delivery of stock or cash subject to the stock unit award after vesting.
Dividend Equivalents. Dividend equivalent rights may be credited with respect to shares covered by a stock unit award. Molecular Devices does not anticipate paying cash dividends on its common stock for the foreseeable future, however.
Termination of Service. Except as otherwise provided in the applicable award agreement, stock units that have not vested will be forfeited upon the participant’s termination of service.
Terms of Other Equity Awards
      The Board may grant other equity awards that are valued in whole or in part by reference to Molecular Devices’ common stock. Subject to the provisions of the 2005 Equity Plan, the Board has the authority to determine the persons to whom and the dates on which such other equity awards will be granted, the number of shares of Common Stockcommon stock (or cash equivalents) to be subject to each award, and other terms and conditions of such awards.
Performance-Based Stock Awards
      Under the Option2005 Equity Plan, a stock award may be granted, vest or be exercised based upon certain service conditions or upon the attainment during a certain period of time of certain performance goals. All employees of Molecular Devices and its affiliates and directors of Molecular Devices are eligible to receive performance-based stock awards under the 2005 Equity Plan. 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 shall be determined by the Board. The maximum amount to be received by any individual in any calendar year attributable to such performance-based stock awards may not exceed 500,000 shares of Molecular Devices’ common stock.
      In granting a performance-based stock award, the Board will set a period of time (a “performance period”) over which the attainment of one or more goals (“performance goals”) will be measured for the purpose of determining whether the award recipient has a vested right in or to such stock award. Within the time period prescribed by Section 162(m) of the Code (typically before the 90th day of a performance period), the Board will establish the performance goals, based upon one or more pre-established criteria (“performance criteria”) enumerated in the 2005 Equity Plan and described below. As soon as administratively practicable following the end of the performance period, the Board will certify (in writing) whether the performance goals have been satisfied.
      Performance goals under the 2005 Equity Plan shall be determined by the Board, based on a service condition or on one or more of the following performance criteria: (i) earnings per share; (ii) earnings before

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interest, taxes and depreciation; (iii) earnings before interest, taxes, depreciation and amortization (EBITDA); (iv) net earnings; (v) total shareholder return; (vi) return on equity; (vii) return on assets, investment, or capital employed; (viii) operating margin; (ix) gross margin; (x) operating income; (xi) net income (before or after taxes); (xii) net operating income; (xiii) net operating income after tax; (xiv) pre- and after-tax income; (xv) pre-tax profit; (xvi) operating cash flow; (xvii) sales or revenue targets; (xviii) increases in revenue or product revenue; (xix) expenses and cost reduction goals; (xx) improvement in or attainment of expense levels; (xxi) improvement in or attainment of working capital levels; (xxii) economic value added (or an equivalent metric); (xxiii) market share; (xxiv) cash flow; (xxv) cash flow per share; (xxvi) share price performance; (xxvii) debt reduction; (xxviii) implementation or completion of projects or processes; (xxix) customer satisfaction; (xxx) total stockholder return; (xxxi) stockholders’ equity; and (xxxii) other measures of performance selected by the Board.
      The Board is authorized at any time in its sole discretion, to adjust or modify the calculation of a performance goal for a performance period in order to prevent the dilution or enlargement of the rights of participants, (a) in the event of, or in anticipation of, any unusual or extraordinary corporate item, transaction, event or development; (b) in recognition of, or in anticipation of, any other unusual or nonrecurring events affecting Molecular Devices, or the financial statements of Molecular Devices, or in response to, or in anticipation of, changes in applicable laws, regulations, accounting principles, or business conditions; or (c) in view of the Board’s assessment of the business strategy of Molecular Devices, performance of comparable organizations, economic and business conditions, and any other circumstances deemed relevant. Specifically, the Board is authorized to make adjustment in the method of calculating attainment of performance goals and objectives for a performance period as follows: (i) to exclude the dilutive effects of acquisitions or joint ventures; (ii) to assume that any business divested by Molecular Devices achieved performance objectives at targeted levels during the balance of a performance period following such divestiture; and (iii) to exclude the effect of any change in the outstanding options.shares of common stock of Molecular Devices by reason of any stock dividend or split, stock repurchase, reorganization, recapitalization, merger, consolidation, spin-off, combination or exchange of shares or other similar corporate change, or any distributions to common shareholders other than regular cash dividends. In that event,addition, the OptionBoard is authorized to make adjustment in the method of calculating attainment of performance goals and objectives for a performance period 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 standards required by the Financial Accounting Standards Board; (iv) to exclude the effects to any statutory adjustments to corporate tax rates; (v) to exclude the impact of any “extraordinary items” as determined under generally accepted accounting principles; and (vi) to exclude any other unusual, non-recurring gain or loss or other extraordinary item.
      If this Proposal 2 is approved by the stockholders, compensation attributable to performance-based stock awards under the 2005 Equity Plan will be appropriately adjustedqualify as performance-based compensation, provided that: (i) the award is granted by a compensation committee comprised solely of “outside directors,” (ii) the award is granted (or exercisable) only upon the achievement of an objective performance goal established in writing by the compensation committee while the outcome is substantially uncertain, (iii) the Compensation Committee certifies in writing prior to the class andgranting (or exercisability) of the award that the performance goal has been satisfied.
Changes to Capital Structure
      If any change is made to the outstanding shares of Molecular Devices’ common stock without Molecular Devices’ receipt of consideration (whether through a stock split or other specified change in the capital structure of Molecular Devices), appropriate adjustments will be made to: (i) the maximum number and/or class of sharessecurities issuable under the 2005 Equity Plan, (ii) the maximum number and/or class of Common Stock subjectsecurities for which any one person may be granted options and/or stock appreciation rights or performance-based stock awards per calendar year pursuant to the Option Plan and the Section 162(m) Limitation, and outstanding options will be adjusted as to(iii) the number and/or class number of sharessecurities and the price per share in effect under each outstanding stock award under the 2005 Equity Plan.

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Corporate Transactions; Changes in Control
      Under the 2005 Equity Plan, unless otherwise provided in a written agreement between Molecular Devices or any affiliate and the holder of Common Stock subject to such options. EFFECT OF CERTAIN CORPORATE EVENTS The Option Plan provides that,the stock award, in the event of a corporate transaction (as specified in the 2005 Equity Plan and described below), all outstanding stock awards under the 2005 Equity Plan may 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 Molecular Devices or its affiliates 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 Molecular Devices or its affiliates 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 Molecular Devices with respect to such stock awards shall not terminate and may continued to be exercised notwithstanding the corporate transaction). In the event a stock award will terminate if not exercised, the Board may provide, in its sole discretion, that the holder of such stock award may not exercise such stock award but will receive a payment equal to the excess of the value of the property the holder would have received upon exercise over any exercise price.
      Other stock awards, such as stock purchase awards, may have their repurchase or forfeiture rights assigned to the surviving or acquiring entity (or its parent company) in the corporate transaction. If such repurchase or forfeiture rights are not assigned, then such stock awards will become fully vested.
      For purposes of the 2005 Equity Plan, a corporate transaction will be deemed to occur in the event of (i) a sale of all or substantially all of the consolidated assets of Molecular Devices and its subsidiaries, (ii) the sale of at least 90% of the outstanding securities of Molecular Devices, (iii) the consummation of a merger or consolidation in which Molecular Devices is not the surviving corporation, or (iv) the consummation of a merger or consolidation in which Molecular Devices is the surviving corporation but shares of Molecular Devices’ outstanding common stock are converted into other property by virtue of the transaction.
      The Board has the discretion to provide that a stock award under the 2005 Equity Plan will immediately vest as to all or any portion of the shares subject to the stock award (i) immediately upon the occurrence of certain specified change in control transactions, whether or not such stock award is assumed, continued, or substituted by a surviving or acquiring entity in the transaction, or (ii) in the event a participant’s service with Molecular Devices or a successor entity is terminated, actually or constructively, within a designated period following the occurrence of certain specified change in control transactions (as defined in the 2005 Equity Plan). Stock awards held by participants under the 2005 Equity Plan will not vest on such an accelerated basis unless specifically provided by the participant’s applicable award agreement.
      Under the 1995 Option Plan, in the event of (i) a dissolution, liquidation or sale of substantially all of the assets of the Company, specified types ofMolecular Devices; (ii) a merger or consolidation in which Molecular Devices is not the surviving corporation; or (iii) a reverse merger in which Molecular Devices is the surviving corporation but the shares of Molecular Devices’ common stock outstanding immediately preceding the merger are converted by virtue of the merger into other corporate reorganization ("change in control"),property, then to the extent permitted by applicable law, any surviving corporation will be required to eithershall assume any options outstanding under the 1995 Option Plan or shall substitute similar options for those outstanding under the 1995 Option Plan, or such outstanding options willshall continue in full force and effect. IfIn the event any surviving corporation declinesrefuses to assume or continue such options, outstanding under the Option Plan, or to substitute similar options, then, with respect to optionholders whose service hasoptions held by persons then performing services as employees, directors or consultants, such options shall be terminated if not terminated, the vesting andexercised prior to such event; provided, however, that the time during which such options may be exercised may, at the discretion of the Board, be accelerated. An outstanding option will terminateaccelerated and the options terminated if the optionholder does not exercise it before a change in control.exercised prior to such event.
      The acceleration of an optionvesting of a stock award in the event of an acquisitiona corporate transaction or similar corporate eventchange in the ownership or control of Molecular Devices under the 2005 Equity Plan may be viewed as an anti-takeover

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provision, which may have the effect of discouraging a proposal to acquire or otherwise obtain control of the Company. DURATION, AMENDMENT AND TERMINATIONMolecular Devices.
Duration, Termination and Amendment
      The Board may suspend or terminate the Option2005 Equity Plan without stockholder approval or ratification at any time or from time to time. Unless sooner terminated, the 2005 Equity Plan will terminate on April 12, 2015. The 1995 Option Plan will terminate on October 29, 2005.2005 in the event that the stockholders do not approve this Proposal 2.
      The Board may also amend or modify the Option2005 Equity Plan at any time or from time to time. However, no amendment willshall be effective unless approved by the stockholders of the Company within 12 months before or after its adoption by the Board if the amendment would (i) modify the requirements asMolecular Devices to eligibility for participation (to the extent such modification requires stockholder approval in order for the Option Planis necessary to satisfy Section 422 of the Code, if applicable or Rule 16b-3 of the Exchange Act); (ii) increase the number of shares reserved for issuance upon exercise of options; or (iii) change any other provision of the Option Plan in any other way if such modification requires stockholder approval in order to comply with Rule 16b-3 of the Exchange Act or satisfy the requirements of Section 422 of the Code or any securities exchange listing requirements.law.
      The Board also may submit any other amendment to the Option2005 Equity Plan for stockholder approval, including, but not limited to, amendments intended to 9 satisfy the requirements of Section 162(m) of the Code regarding the exclusion of performance-based compensation from the limitation on the deductibility of compensation paid to certain employees. FEDERAL INCOME TAX INFORMATION Long-term capital gains currently are
      The Board may not, under the 2005 Equity Plan, without obtaining the prior approval of the stockholders of Molecular Devices, (i) reduce the exercise price of any outstanding option under the 2005 Equity Plan; (ii) cancel or accept any outstanding option under the 2005 Equity Plan and grant in substitution or exchange therefor a new option or other stock award under the 2005 Equity Plan or another equity plan of Molecular Devices covering the same or a different number of shares of common stock; (iii) cancel or accept any outstanding option under the 2005 Equity Plan and grant in substitution or exchange therefor cash or any other valuable consideration; or (iv) conduct any other action that is treated as a repricing under generally subject to lower tax rates than ordinary income or short-term capital gains.accepted accounting principles.
Federal Income Tax Information
      The maximum long-term capital gains rate forfollowing is a summary of the principal United States federal income taxation consequences to employees and Molecular Devices with respect to participation in the 2005 Equity Plan. This summary is not intended to be exhaustive, and does not discuss the income tax purposes is currently 20% while the maximum ordinary income rate and short-term capital gains rate is 39.6%. Slightly different ruleslaws of any city, state or foreign jurisdiction in which a participant may apply to optionholders who acquire stock subject to certain repurchase options or who are subject to Section 16(b) of the Exchange Act. INCENTIVE STOCK OPTIONS.reside.
Incentive Stock Options. Incentive stock options granted under the Option2005 Equity Plan are intended to be eligible for the favorable federal income tax treatment accorded "incentive“incentive stock options"options” under the Code. There generally are no federal income tax consequences to the optionholderparticipant or the CompanyMolecular Devices by reason of the grant or exercise of an incentive stock option. However, the exercise of an incentive stock option may increase the optionholder'sparticipant’s alternative minimum tax liability, if any.
      If an optionholdera participant holds stock acquired through exercise of an incentive stock option for at leastmore than two years from the date on which the option iswas granted and at leastmore than one year fromafter the date on which the shares are transferred to the optionholder upon exercise of the option was exercised for those shares, any gain or loss on a disposition of such stockthose shares (a “qualifying disposition”) will be a long-term capital gain or loss. Upon such a qualifying disposition, Molecular Devices will not be entitled to any income tax deduction.
Generally, if the optionholderparticipant disposes of the stock before the expiration of either of these holding periods (a "disqualifying disposition"“disqualifying disposition”), then at the time of disposition the optionholderparticipant will realize taxable ordinary income equal to the lesser of (i) the excess of the stock'sstock’s fair market value on the date of exercise over the exercise price, or (ii) the optionholder'sparticipant’s actual gain, if any, on the purchase and sale. The optionholder'sparticipant’s additional gain or any loss upon the disqualifying disposition will be a capital gain or loss, which will be long-term or short-term depending on whether the stock was held for more than one year.
      To the extent the optionholderparticipant recognizes ordinary income by reason of a disqualifying disposition, the Companygenerally Molecular Devices will generally be entitled (subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code, and the satisfaction of a tax reporting obligation) to a corresponding business expenseincome tax deduction in the tax year in which the disqualifying disposition occurs. NONSTATUTORY STOCK OPTIONS.

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Nonstatutory stock options granted under the Option Plan generally have the following federalStock Options. No taxable income tax consequences: There are no tax consequences to the optionholder or the Companyis recognized by reason ofa participant upon the grant of a nonstatutory stock option. Upon exercise of a nonstatutory stock option, the optionholder normallyparticipant will recognize taxable ordinary income equal to the excess, if any, of the stock's fair market value of the purchased shares on the exercise date of exercise over the option exercise price. However, to the extent the stock is subject to certain types of vesting restrictions, the taxable eventprice paid for those shares. Generally, Molecular Devices will be delayed until the vesting restrictions lapse unless the participant elects to be taxed on receipt of the stock. With respect to employees, the Company is generally required to withhold from regular wages or supplemental wage payments an amount based on the ordinary income recognized. Subjectentitled (subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code, and the satisfaction of a tax reporting obligation, the Company will generally be entitledobligation) to a business expensecorresponding income tax deduction in the tax year in which such ordinary income is recognized by the participant.
      However, if the shares acquired upon exercise of the nonstatutory stock option are unvested and subject to repurchase by Molecular Devices in the event of the participant’s termination of service prior to vesting in those shares, the participant will not recognize any taxable income at the time of exercise, but will have to report as ordinary income, as and when Molecular Devices’ repurchase right lapses, an amount equal to the taxableexcess of (i) the fair market value of the shares on the date the repurchase right lapses, over (ii) the exercise price paid for the shares. The participant may, however, elect under Section 83(b) of the Code to include as ordinary income realized byin the optionholder.year of exercise of the option an amount equal to the excess of (i) the fair market value of the purchased shares on the exercise date, over (ii) the exercise price paid for such shares. If the Section 83(b) election is made, the participant will not recognize any additional income as and when the repurchase right lapses.
      Upon disposition of the stock, the optionholderparticipant will recognize a capital gain or loss equal to the difference between the selling price and the sum of the amount paid for such stock plus any amount recognized as ordinary income upon exerciseacquisition (or vesting) of the option (or vesting of the stock).stock. Such gain or loss will be long-term or short-term depending on whether the stock was held for more than one year. Slightly different rules may apply
Stock Appreciation Rights. No taxable income is realized upon the receipt of a stock appreciation right. Upon exercise of the stock appreciation right, the fair market value of the shares (or cash in lieu of shares) received is recognized as ordinary income to optionholders who acquirethe participant in the year of such exercise. Generally, with respect to employees, Molecular Devices is required to withhold from the payment made on exercise of the stock appreciation right or from regular wages or supplemental wage payments an amount based on the ordinary income recognized. Subject to the requirement of reasonableness, Section 162(m) of the Code and the satisfaction of a reporting obligation, Molecular Devices will be entitled to an income tax deduction equal to the amount of ordinary income recognized by the participant.
Stock Purchase Awards and Stock Bonus Awards. Upon receipt of a stock purchase or stock bonus award, the participant will recognize ordinary income equal to the excess, if any, of the fair market value of the shares on the date of issuance over the purchase price, if any, paid for those shares. Molecular Devices will be entitled (subject to the requirement of reasonableness, the provisions of Section 162(m) of the Code, and the satisfaction of a tax reporting obligation) to a corresponding income tax deduction in the tax year in which such ordinary income is recognized by the participant.
      However, if the shares issued upon the grant of a stock purchase or stock bonus award are unvested and subject to certain repurchase optionsby Molecular Devices in the event of the participant’s termination of service prior to vesting in those shares, the participant will not recognize any taxable income at the time of issuance, but will have to report as ordinary income, as and when Molecular Devices’ repurchase right lapses, an amount equal to the excess of (i) the fair market value of the shares on the date the repurchase right lapses, over (ii) the purchase price, if any, paid for the shares. The participant may, however, elect under Section 83(b) of the Code to include as ordinary income in the year of issuance an amount equal to the excess of (x) the fair market value of the shares on the date of issuance, over (y) the purchase price, if any, paid for such shares. If the Section 83(b) election is made, the participant will not recognize any additional income as and when the repurchase right lapses.
      Upon disposition of the stock acquired upon the receipt of a stock purchase or who arestock bonus award, the participant will recognize a capital gain or loss equal to the difference between the selling price and the sum of the amount paid for such stock plus any amount recognized as ordinary income upon issuance (or vesting) of the stock. Such gain or loss will be long-term or short-term depending on whether the stock was held for more than one year.

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Stock Unit Awards. No taxable income is recognized upon receipt of a stock unit award. The participant will recognize ordinary income in the year in which the shares subject to Section 16(b)that unit are actually issued to the participant in an amount equal to the fair market value of the Exchange Act. 10 POTENTIAL LIMITATION ON COMPANY DEDUCTIONS.shares on the date of issuance. The participant and Molecular Devices will be required to satisfy certain tax withholding requirements applicable to such income. Subject to the requirement of reasonableness, Section 162(m) of the Code and the satisfaction of a tax reporting obligation, Molecular Devices will be entitled to an income tax deduction equal to the amount of ordinary income recognized by the participant at the time the shares are issued. In general, the deduction will be allowed for the taxable year in which such ordinary income is recognized by the participant.
Potential Limitation on Company Deductions. Section 162(m) of the Code denies a deduction to any publicly heldpublicly-held corporation for compensation paid to certain "covered employees"“covered employees” in a taxable year to the extent that compensation to such covered employee exceeds $1 million. It is possible that compensation attributable to stock options,awards, when combined with all other types of compensation received by a covered employee from the Company,Molecular Devices, may cause this limitation to be exceeded in any particular year.
      Certain kinds of compensation, including qualified "performance-based“performance-based compensation," are disregarded for purposes of the deduction limitation. In accordance with Treasury regulationsRegulations issued under Section 162(m), of the Code, compensation attributable to stock options and stock appreciation rights will qualify as performance-based compensation if the option is grantedsuch awards are approved by a compensation committee comprised solely of "outside directors"“outside directors” and either (i) the plan contains a per-employee limitation on the number of shares for which optionssuch awards may be granted during a specified period, the per-employee limitation is approved by the stockholders, and the exercise or strike price of the optionaward is no less than the fair market value of the stock on the date of grant.
      Compensation attributable to stock options or stock appreciation rights with exercise or strike prices less than fair market value on the date of grant, orstock purchase awards, stock bonus awards, and stock unit awards will qualify as performance-based compensation, provided that: (i) the award is approved by a compensation committee comprised solely of “outside directors,” (ii) the optionaward is granted (or exercisable) only upon the achievement (as certified in writing by the compensation committee) of an objective performance goal established in writing by the compensation committee while the outcome is substantially uncertain, (iii) the Compensation Committee certifies in writing prior to the granting (or exercisability) of the award that the performance goal has been satisfied, and (iv) prior to the granting (or exercisability) of the award, stockholders have approved the material terms of the award (including the class of employees eligible for such award, the business criteria on which the performance goal is based, and the option is approved by stockholders. PROPOSAL 3 APPROVAL OF INCREASE IN NUMBER OF AUTHORIZED SHARES OF COMMON STOCK The Board of Directors has adopted, subjectmaximum amount, or formula used to stockholder approval, an amendment tocalculate the Company's Restated Certificate of Incorporation to increase the Company's authorized number of shares of Common Stock from 30,000,000 shares to 60,000,000 shares. The additional Common Stock to be authorized by adoptionamount, payable upon attainment of the amendment would have rights identicalperformance goal).
New Plan Benefits
      The following table presents certain information with respect to the currently outstanding Common Stock of the Company. Adoption of the proposed amendment and issuance of the Common Stock would not affect the rights of the holders of currently outstanding Common Stock of the Company, except for effects incidentaloptions to increasing the number of shares of the Company's Common Stock outstanding, such as dilution of the earnings per share and voting rights of current holders of Common Stock. If the amendment is adopted, it will become effective upon filing of a Certificate of Amendment of the Company's Restated Certificate of Incorporation with the Secretary of State of the State of Delaware. In addition to the 16,331,167 shares of Common Stock outstanding at December 31, 2000, the Board has reserved 2,881,278 shares for issuance upon exercise of options and rightsbe granted under the Company's stock option and stock purchase plans. Although at present the Board of Directors has no other plans2005 Equity Plan to issue the additional shares of Common Stock, it desires to have such shares available to provide additional flexibility to use its capital stock for business and financial purposes in the future. The additional shares may be used, without furtherall non-employee directors as a group immediately following this year’s Annual Meeting, assuming stockholder approval for various purposes including, without limitation, raising capital, providing equity incentives to employees, officers or directors, establishing strategic relationships with other companies and expanding the company's business or product lines through the acquisition of other businesses or products. The additional shares of Common Stock that would become available for issuance if the proposal were adopted could also be used by the Company to oppose a hostile takeover attempt or delay or prevent changes in control or management of the Company. For example, without further stockholder approval, the Board could strategically sell shares of Common Stock in a private transaction to purchasers who would oppose a takeover or favor the current Board. Although this proposal to increase the authorized Common Stock has been prompted by business and financial considerations and not by the threat of any hostile takeover attempt (nor is the Board currently aware of any such attempts directed at the Company), nevertheless, stockholders should be aware that approval of proposal could facilitate future efforts by the Company to deter or prevent changes in control of the Company, including transactions in which the stockholders might otherwise receive a premium for their shares over then current market prices. 11 The Company's audited consolidated financial statements, management's discussion and analysis of financial condition and results of operations, and certain supplementary financial information are incorporated by reference to pages 22 through 52 of the Company's 2000 annual report to stockholders. The affirmative vote of the holders of a majority of the shares of the Common Stock will be required to approve this amendment to the Company's Restated Certificate of Incorporation. As a result, abstentions and broker non-votes will have the same effect as negative votes. THE BOARD OF DIRECTORS RECOMMENDS A VOTE IN FAVOR OF Proposal 2:
Molecular Devices Corporation 2005 Equity Incentive Plan
Number of Shares
Underlying
Name and PositionOptions Granted
Non-employee directors as a group28,000

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PROPOSAL 3. 12 PROPOSAL 4 3
RATIFICATION OF SELECTION OF INDEPENDENT AUDITORS
REGISTERED PUBLIC ACCOUNTING FIRM
      The Audit Committee of the Board of Directors has selected Ernst & Young LLP as the Company'sMolecular Devices’ independent auditorsregistered public accounting firm for the fiscal year ending December 31, 20012005, and has further directed that management submit the selection of Ernst & Young LLP as Molecular Devices’ independent auditorsregistered public accounting firm for ratification by the stockholders at the Annual Meeting. Ernst & Young LLP has audited the Company'sMolecular Devices’ financial statements since its inception in 1983. Representatives of Ernst & Young LLP are expected to be present at the Annual Meeting,annual meeting, will have an opportunity to make a statement if they so desire and will be available to respond to appropriate questions.
      Stockholder ratification of the selection of Ernst & Young LLP as the Company'sMolecular Devices’ independent auditorsregistered public accounting firm is not required by the Company'sMolecular Devices’ Bylaws or otherwise. However the Board of Directors, on behalf of the Audit Committee, is submitting the selection of Ernst & Young LLP to the stockholders for ratification as a matter of good corporate practice. If the stockholders fail to ratify the selection, the Audit Committee and the Board will reconsider whether or not to retain that firm. Even if the selection is ratified, the Audit Committee and the Board in theirits discretion may direct the appointment of different independent auditorsregistered public accounting firm at any time during the year if they determine that such a change would be in the best interests of the CompanyMolecular Devices and its stockholders.
      The affirmative 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 will be required to ratify the selection of Ernst & Young LLP. Abstentions will be counted toward the tabulation of votes cast on proposals presented to the stockholders and will have the same effect as negative votes. Broker non-votes are counted towards a quorum, but are not counted for any purpose in determining whether this matter has been approved. DISCLOSURE
THE BOARD OF AUDITOR FEES In addition to retaining Ernst & Young LLP,DIRECTORS RECOMMENDS
A VOTE IN FAVOR OF PROPOSAL 3.
Principal Accountant Fees
      The following is a summary of the Company's independent auditors, to audit the consolidated financial statements for fiscal year 2000, the Company and its subsidiaries retained Ernst & Young LLP to provide other services and expect to continue to do so in the future. The aggregate fees incurred for professional services renderedbilled to Molecular Devices by Ernst & Young LLP relatingfor professional services rendered during the fiscal years ended December 31, 2004 and 2003.
          
  Fiscal Year Ended
  December 31,
   
  2004 2003
     
Audit Fees $959,000  $260,000 
Audit-Related Fees  313,000   229,000 
Tax Fees     199,000 
All Other Fees      
       
 Total Fees $1,272,000  $688,000 
       
Audit Fees. Consists of fees billed for professional services rendered for the audit of Molecular Devices’ financial statements and review of the interim financial statements included in quarterly reports and services that are normally provided by Ernst & Young LLP in connection with statutory and regulatory filings or engagements.
Audit-Related Fees. Consists of fees billed for assurance and related services that are reasonably related to the performance of the audit or review of Molecular Devices’ financial statements and are not reported under “Audit Fees.” During the fiscal years ended December 31, 2004 and 2003, these services included assurance and related services associated with potential and completed business development transactions, as well as audits of Molecular Devices’ 401(k) plan.

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Tax Fees. Consists of fees billed for professional services for tax compliance, tax advice and tax planning. During the fiscal year ended December 31, 2000 were: AUDIT FEES: $207,234 for2004, Ernst & Young LLP did not provide tax services rendered relating to the annual audit of the Company's consolidated financial statements forMolecular Devices. During the fiscal year ended December 31, 20002003, these services included tax compliance services, preparation of income tax returns and the quarterly reviewsinternational tax advice and planning services.
All Other Fees. During each of the consolidated financial statements included in the Company's quarterly reports on Form 10-Q filed during fiscal year 2000. FINANCIAL INFORMATION SYSTEMS DESIGN AND IMPLEMENTATION FEES: The Company did not engageyears ended December 31, 2004 and 2003, no fees were billed by Ernst & Young LLP other than as set forth under “Audit Fees,” “Audit-Related Fees” and “Tax Fees” above.
Pre-Approval of Audit and Non-Audit Services
      Our Audit Committee pre-approves all audit and permissible non-audit services provided by Molecular Devices’ independent registered public accounting firm. These services may include audit services, audit-related services, tax services and other services. Pre-approval may 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. The Chairman of the Audit Committee is also authorized to provide advice topre-approve any services, provided the Company regarding financial information systems design and implementation during fiscal year 2000. ALL OTHER FEES: $376,000 for allAudit Committee is advised at its next meeting of any services pre-approved by the Chairman.
      The Audit Committee has determined that the rendering of the services other than audit services rendered during fiscal year 2000. Of these fees, $229,000 relate to audit related services (which typically include fees for accounting consultations, SEC Registration Statements, and statutorily required audits in certain locations outsideby Ernst & Young LLP is compatible with maintaining the United States where the Company has operations). THE BOARD OF DIRECTORS RECOMMENDS A VOTE IN FAVOR OF PROPOSAL 4. 13 principal accountant’s independence.

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SECURITY OWNERSHIP OF
CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
      The following table sets forth certain information regarding the ownership of the Company's Common StockMolecular Devices’ common stock as of FebruaryMarch 15, 20012005 (except as noted) by: (i) each director and nominee for director; (ii) each of the executive officers named in the Summary Compensation Table;Table presented later in this proxy statement; (iii) all executive officers and directors of the CompanyMolecular Devices as a group; and (iv) all those known by the CompanyMolecular Devices to be beneficial owners of more than five percent of its Common Stock. common stock.
         
  Beneficial Ownership(1)
   
  Number of Percent of
Beneficial Owner Shares Total
     
Brown Capital Management, Inc.(2)
1201 North Calvert Street
Baltimore, Maryland 21202
  2,066,070   12.2%
Wellington Management Company, LLP(3)
75 State Street
Boston, Massachusetts 02109
  1,043,700   6.2%
Joseph D. Keegan, Ph.D.(4)  372,216   2.2%
Moshe H. Alafi(5)  348,540   2.1%
Harden M. McConnell, Ph.D.(6)  247,467   1.5%
Timothy A. Harkness(7)  189,165   1.1%
Robert J. Murray(8)  134,399   * 
A. Blaine Bowman(9)  120,666   * 
Patricia C. Sharp(10)  130,042   * 
David L. Anderson(11)  69,407   * 
Paul Goddard, Ph.D.(12)  42,500   * 
J. Allan Waitz, Ph.D.(13)  39,000   * 
Thomas J. O’Lenic(14)  43,306   * 
André F. Marion(15)  27,000   * 
All directors and executive officers as a group (17 persons)(16)  2,226,881   12.3%
BENEFICIAL OWNERSHIP
*Less than one percent.
(1) NUMBER OF SHARES PERCENT OF CLASS ---------------- ---------------- Kopp Investment Advisors, Inc............................. 2,140,457 13.0% 7701 France Ave. South, Ste. 500 Edina, Minnesota 55435 T. Rowe Price Associates, Inc............................. 1,183,849 7.2% 100 E. Pratt Street Baltimore, Maryland 21202 Scudder Kemper Investments, Inc........................... 877,670 5.3% 345 Park Avenue New York, New York 10154 Pilgrim Baxter & Associates, Ltd.......................... 843,100 5.1% 825 Duportail Road Wayne, Pennsylvania 19087 Moshe H. Alafi(2)......................................... 333,540 2.0%This table is based upon information supplied by officers, directors and principal stockholders and Schedules 13G filed with the SEC. Unless otherwise indicated in the footnotes to this table and subject to community property laws where applicable, Molecular Devices believes that each of the stockholders named in this table has sole voting and investment power with respect to the shares indicated as beneficially owned. Applicable percentages are based on 16,914,149 shares outstanding on March 15, 2005, adjusted as required by rules promulgated by the SEC. Unless otherwise indicated, the address of each of the individuals and entities listed in this table is c/o Molecular Devices at the address on the first page of this proxy statement.
(2) Based upon a Schedule 13G filed with the SEC on February 9, 2005 by Brown Capital Management, Inc. (“BCM”) in its capacity as a registered investment adviser. Such shares are owned by various investment advisory clients of BCM, which is deemed to be a beneficial owner of such shares, due to its discretionary power to make investment decisions over such shares for its clients and its ability to vote such shares. BCM has sole dispositive power over such shares and has sole voting power over 779,920 of such shares. Persons other than BCM have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, such shares. Schedule 13G provides information only as of December 31, 2004 and, consequently, BCM’s beneficial ownership of Molecular Devices’ common stock may have changed between December 31, 2004 and March 15, 2005.

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(3) Based upon a Schedule 13G filed with the SEC on February 14, 2005 by Wellington Management Company, LLP (“WMC”) in its capacity as an investment adviser. Such shares are owned of record by clients of WMC which clients have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, such shares. In its capacity as an investment adviser, WMC may be deemed to beneficially own such shares. WMC has shared dispositive power over such shares and shared voting power over 723,500 of such shares. Schedule 13G provides information only as of December 31, 2004 and, consequently, WMC’s beneficial ownership of Molecular Devices’ common stock may have changed between December 31, 2004 and March 15, 2005.
(4) Includes 5,766 shares held by the Keegan 1990 Revocable Trust UAD 4/27/90, of which Dr. Keegan is a trustee, and includes 351,968 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(5) Includes 306,040 shares beneficially owned by Alafi Capital Company, of which Mr. Alafi, a director of Molecular Devices, is a general partner, and includes 42,500 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(6) Includes 221,467 shares held by the Harden M. McConnell Ph.D.(3)............................. 262,000 1.6% A. Blaine Bowman(4)....................................... 67,500 * David L. Anderson(5)...................................... 54,407 * Joseph D. Keegan, Ph.D.(6)................................ 44,902 * Robert J. Murray(7)....................................... 34,259 * Paul Goddard, Ph.D.and Sophia G. McConnell Trust DTD 3/29/82, of which Dr. McConnell is a co-trustee, and includes 26,000 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(7) Includes 182,654 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(8).................................... 27,500 * J. Allan Waitz, Ph.D.Includes 106,279 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(9).................................. 17,500 * Timothy A. Harkness(10)................................... 14,942 * Tony M. Lima(11).......................................... 14,646 * Andre F. Marion(12)....................................... 12,000 * John S. Senaldi(13)....................................... 7,918 * Lev J. Leytes 1,412 * AllIncludes 48,166 shares beneficially owned by Dionex Corporation, of which Mr. Bowman is Chairman of the board, and includes 32,500 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options. Mr. Bowman disclaims beneficial ownership of the shares held by Dionex Corporation within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).
(10) Includes 126,717 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(11) Includes 26,907 shares held by the Anderson Living Trust UAD 1/22/98, of which Mr. Anderson is a trustee, and includes 42,500 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options. Mr. Anderson disclaims beneficial ownership of the shares held by the Anderson Living Trust UAD 1/22/98 within the meaning of Rule 13d-3 under the Exchange Act.
(12) Consists solely of shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(13) Includes 32,500 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(14) Includes 42,599 shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(15) Consists solely of shares that may be acquired within 60 days after March 15, 2005 pursuant to outstanding stock options.
(16) Includes 725,861 shares held by entities affiliated with certain directors and executive officers as a group (17 persons)(14).......................................... 961,939 5.8% and 1,214,361 shares that certain directors and officers have the right to acquire within 60 days after March 15, 2005 pursuant to outstanding stock options.
- --------------- * Less than one percent (1) This

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Equity Compensation Plan Information
      The following table is based uponprovides certain information supplied by officers, directors and principal stockholders and Schedules 13D and 13G filed with the Securities and Exchange Commission (the "SEC") . Unless otherwise indicated in the footnotes to this table and subject to community property laws where applicable, the Company believes that each of the stockholders named in this table has sole voting and investment power with respect to all of Molecular Devices’ equity compensation plans in effect as of December 31, 2004:
             
  Number of Securities   Number of Securities
  to be Issued Weighted-Average Remaining Available for
  upon Exercise Exercise Price Issuance under Equity
  of Outstanding of Outstanding Compensation Plans
  Options, Warrants Options, Warrants (Excluding Securities
  and Rights and Rights Reflected in Column (a))
Plan Category (a) (b) (c)
       
Equity compensation plans approved by security holders
  2,912,935  $25.35   1,224,349(1)
Equity compensation plans not approved by security holders(2)
  92,125  $17.99   6,032 
          
Total
  3,005,060  $25.12   1,230,381(1)
          
(1) Of these shares, 91,299 shares remained available for the grant of future rights under the Molecular Devices Corporation 1995 Employee Stock Purchase Plan.
(2) Represents shares issuable upon the exercise of outstanding options under the Molecular Devices Corporation 2001 Stock Option Plan and shares remaining available for issuance thereunder. The table does not include information with respect to shares subject to outstanding options granted under equity compensation arrangements assumed by Molecular Devices in connection with the acquisitions of LJL BioSystems, Inc. in August 2000 and Axon Instruments, Inc. in July 2004. As of December 31, 2004, a total of 508,592 shares of Molecular Devices’ common stock were issuable upon the exercise of outstanding options under those assumed arrangements at a weighted average exercise price of $21.63. No additional options may be granted under those assumed arrangements.
Molecular Devices Corporation 2001 Stock Option Plan
      The Molecular Devices Corporation 2001 Stock Option Plan, or 2001 Plan, was adopted by the Board in July 2001 without the approval of Molecular Devices’ security holders. An aggregate of 100,000 shares of Molecular Devices’ common stock have been reserved for issuance under the 2001 Plan. As of December 31, 2004, options to purchase 92,125 shares of common stock were outstanding under the 2001 Plan, and 6,032 shares (plus any shares that might in the future be returned to the 2001 Plan as a result of cancellations or expiration of options) remained available for grant. The 2001 Plan provides for the grant of nonstatutory stock options only to employees who, at the time of grant, are working or residing outside of the United States and are not officers or directors of Molecular Devices. The exercise price of nonstatutory stock options granted under the 2001 Plan may not be less than 85% of the fair market value of a share of Molecular Devices’ common stock on the date of grant. All stock options have a maximum term of twelve years and typically vest over a four-year period. Options may be exercised prior to vesting, subject to repurchase rights in favor of Molecular Devices that expire over the vesting period. The Board at any time, and from time to time, may amend the 2001 Plan, provided that the rights of an optionholder under the 2001 plan cannot be impaired without the optionholder’s consent. Certain amendments require stockholder approval, if necessary for the 2001 Plan to satisfy Nasdaq or other securities exchange listing requirements. In the event of: (1) a dissolution, liquidation or sale of substantially all of the assets of Molecular Devices; (2) a merger or consolidation in which Molecular Devices is not the surviving corporation; or (3) a reverse merger in which Molecular Devices is the surviving corporation but the shares indicated as beneficially owned. Applicable percentagesof Molecular Devices’ common stock outstanding immediately preceding the merger are based on 16,452,359 shares outstanding on February 15, 2001, adjusted as requiredconverted by rules promulgated by the SEC. (2) Includes 306,040 shares beneficially owned by Alafi Capital Company, of which Mr. Alafi, a directorvirtue of the Company, is a general partner, and 27,500 sharesmerger into other property, whether in the form of securities, cash or otherwise, then to the extent permitted by applicable law, any surviving corporation shall either assume the options or shall substitute similar options for those outstanding under the 2001 Plan, or such options shall terminate to the extent not exercised prior to such event; provided, however, that at the discretion of the Board, the options may be acquired within 60 days after February 15, 2001 pursuantaccelerated prior to outstanding stock options. (3) Includes 251,000 shares held by the Harden M. McConnell and Sophia G. McConnell Trust, of which Dr. McConnell is a co-trustee, and 11,000 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (4) Includes 27,500 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (5) Includes 26,907 shares beneficially owned by Anvest, L.P., of which Mr. Anderson is a general partner, and 27,500 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. Mr. Anderson disclaims beneficial ownership of shares held by Sutter Hill Ventures and Anvest, L.P., and individuals and entities associated with Sutter Hill Ventures and Anvest, L.P., except as to the shares held of record in his name and his proportionate partnership interest in the shares held of record by Sutter Hill Ventures and Anvest, L.P. (6) Includes 39,750 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (7) Includes 8,625 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (8) Includes 27,500 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (9) Includes 17,500 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (10) Includes 11,250 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (11) Includes 13,250 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (12) Includes 12,000 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options. (13) Includes 4,600 shares that may be acquired within 60 days after February 15, 2001 pursuant to outstanding stock options (14) Includes 583,947 shares held by entities affiliated with certain directors and 271,340 shares that certain directors and officers have the right to acquire within 60 days after February 15, 2001 pursuant to the exercise of outstanding stock options and/or periodic stock grant rights. See Footnotes (2) through (13). 14 such event.

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SECTION 16(A)16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
      Section 16(a) of the Securities Exchange Act of 1934 requires the Company'sMolecular Devices’ directors and executive officers, and persons who own more than ten percent of a registered class of the Company'sMolecular Devices’ equity securities, to file with the SEC initial reports of ownership and reports of changes in ownership of Common Stockcommon stock and other equity securities of the Company.Molecular Devices. Officers, directors and greater than ten percent stockholders are required by SEC regulation to furnish the CompanyMolecular Devices with copies of all Section 16(a) forms they file.
      To the Company'sMolecular Devices’ knowledge, based solely on a review of the copies of such reports furnished to the CompanyMolecular Devices and written representations that no other reports were required, during the fiscal year ended December 31, 2000,2004, all Section 16(a) filing requirements applicable to its officers, directors and greater than ten percent beneficial owners were complied with; except that one report on Form 4, covering four transactions, was filed late by Dr. ModlinKeegan, and one amendment, covering one transaction, was delinquent in reporting two transactions in Decebmer 2000 and reported an incorrect number of shares owned duefiled by Dr. Finkel to correct an error made in a previous year. This error was corrected by amending his previouspreviously timely filed report on Form 3 report. 4.

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EXECUTIVE OFFICERS OF THE COMPANY The
      Molecular Devices’ executive officers, and certain key employees of the Company and their ages and their positions as of February 15, 2000March 31, 2005, are as follows:
NAME AGE POSITION - ---- --- --------
NameAgePosition Held with Molecular Devices
Joseph D. Keegan, Ph.D.................. 47 Ph.D. 51President, Chief Executive Officer
Timothy A. Harkness..................... 34Harkness38Senior Vice President, Chief Financial Officer
Alan Finkel, Ph.D. 52Senior Vice President, Chief Technology Officer
Steven Davenport39Vice President, European Operations
Jan Hughes44Vice President, Worldwide Marketing
Gillian M.K. Humphries, Ph.D............ 63 Ph.D. 66Vice President, Strategic Affairs
Robert J. Murray56Vice President, Operations
Thomas J. O’Lenic41Vice President, North American Sales and Service
Patricia C. Sharp61Vice President, Human Resources
J. Richard Sportsman, Ph.D. 52Vice President, Assay and Reagent R&D Tony M. Lima............................ 42 Vice President, SalesResearch and Service Douglas N. Modlin, Ph.D. ............... 48 Vice President, Instrument Technology R&D Robert J. Murray........................ 53 Vice President, Operations John S. Senaldi......................... 36 Vice President, Marketing Patricia C. Sharp....................... 57 Vice President, Human Resources Andrew T. Zander, Ph.D. ................ 55 Vice President, Engineering Development
Joseph D. Keegan, Ph.D., was appointed as President and Chief Executive Officer of the CompanyMolecular Devices effective March 30, 1998. From 1992 to 1998, Dr. Keegan served in various positions at Becton Dickinson and Company, a research and diagnostic company, including the positions of Vice President, Sales and Service, Vice President, General Manager of the Immunocytometry Systems Division and, most recently, President of the Worldwide Tissue Culture Business. From 1987 to 1992, he was employed by LEICA, Inc., a microscope manufacturer, where he held various senior management positions. Dr. Keegan is a memberdirector of the Board of Directors of Argonex,Essen Instruments, Inc. Dr. Keegan holds a Ph.D. in Chemistry from Stanford University.
Timothy A. Harkness has served as Molecular Devices’ Chief Financial Officer since July 1998 and was appointed as Senior Vice President Finance and Chief Financial Officer of the Company since July 1998.effective August 1, 2004. From 1997 to 1998, Mr. Harkness was Vice President of Business Development at Vivra Specialty Partners, a physician practice management company. Previously, Mr. Harkness was with Montgomery Securities in the Health Care Investment Banking Group from 1994 to 1997 and with Arthur Andersen & Co. from 1989 to 1992. Mr. Harkness holds an MBA from Stanford University Graduate School of Business and is a CPA.
Alan Finkel, Ph.D. was appointed as Vice President and Chief Technical Officer effective July 1, 2004, and Senior Vice President and Chief Technology Officer, effective August 1, 2004. Dr. Finkel was the founder of Axon Instruments, Inc. and served as its CEO from 1983 to June 2004. From 2000 to 2003, Dr. Finkel was Adjunct Professor in the School of Biomedical Sciences at the University of Queensland and a Member of the John Curtin School of Medical Research Strategic Advisory Committee. From 1984 to 1987, Dr. Finkel was a Consulting Assistant Professor of Surgery, Stanford University. In 1981 and 1982, Dr. Finkel was a Research Fellow at the John Curtin School of Medical Research at the Australian National University in Canberra. Dr. Finkel received his doctorate in Electrical Engineering at Monash University, Australia, in 1981.
Steven Davenport was appointed as Vice President, European Operations of Molecular Devices on February 16, 2005. Mr. Davenport joined Molecular Devices in March 2002 and served as Molecular Devices’ General Manager European Operations. From 1989 to 2002, Mr. Davenport was employed by Amersham plc and Amersham Biosciences (now a part of GE Healthcare) in a variety of roles involving sales of technologies for genomics, proteomics and high throughput screening to pharmaceutical companies throughout Europe. From August 2001 to March 2002, Mr. Davenport held the post of European Business Director Technology Programs with Amersham Biosciences. Mr. Davenport holds a first class honors degree in Applied Chemistry from the University of Wales Institute of Science and Technology, Cardiff, UK.
Jan Hughes was appointed as Vice President, Worldwide Marketing of Molecular Devices on February 16, 2005. Mr. Hughes joined Molecular Devices in September 2003 as Director of Product Development, IonWorks and was subsequently promoted to Vice President of Product Development, IonWorks in March 2004. In 1994, Mr. Hughes co-founded Argonaut Technologies, Inc., a bioanalytical instrument company,

28


where he served in various capacities until September 2003, including most recently as Senior Vice President and Chief Technology Officer. Prior to co-founding Argonaut, Mr. Hughes was employed by Applied Biosystems, a bioanalytical instrument company, for approximately ten years where he led instrument product development efforts in protein sequencing, amino acid analysis and both DNA and protein synthesis. Mr. Hughes holds a BS in Mechanical Engineering from Cal Poly, San Luis Obispo.
Gillian M.K. Humphries, Ph.D., has served as a Vice President of the CompanyMolecular Devices since March 1990. Dr. Humphries served as a consultant to the CompanyMolecular Devices since its inception in 1983. In 1984, Dr. Humphries joined the CompanyMolecular Devices on a full time basis as a research scientist and, from 1985 to 1990, she served as Director of MAXline and Cytosensor Development. Dr. Humphries holds a Ph.D. in Biochemistry from Stanford University and an MS in Biochemistry from San Jose State University. Tony M. Lima
Robert J. Murray has served as Vice President, Sales and Service, of the Company since July 1998. Previously, Mr. Lima was Manager, Sales and Marketing at Cavro Scientific Instruments during a portion of 1998, 15 President/CEO of Aydius, Inc. from 1996 to 1997, and Vice President, Customer Services of Behring Diagnostics (formerly Syva Company) from May 1995 to March 1996. From 1981 to May 1995 he was employed by Syva Co., a global clinical diagnostics company, where he held various senior management positions in England, Belgium and the United States. Mr. Lima holds a higher TEC Degree in Electronics from Kingston College London, England. Douglas N. Modlin, Ph.D., joined the Company in August 2000 when it merged with LJL BioSystems, Inc., and was appointed as Vice President of Instrument Technology Research and Development in October 2000. Since October 1997, Dr. Modlin worked at LJL BioSystems as Vice President of Instrumentation Systems Research and Development and served as Senior Director of Research and Development since December 1996. Prior to that, Dr. Modlin was the Manager of Advanced Test Systems Development at Micro Module Systems, Inc., from November 1995 to December 1996, and was the Associate Technical Director of Research at the Company August 1993 to October 1995. From November 1991 to August 1993, Dr. Modlin was the Program Manager of Diagnostic Instrumentation for Affymax NV, a drug discovery company. Dr. Modlin holds a B.S. in electrical engineering from the California Polytechnic State University, San Luis Obispo, and an M.S. and Ph.D in electrical engineering from Stanford University. Robert J. Murray has served as a Vice President, in charge of Worldwide Operations since July 1995. Mr. Murray served as the Company'sMolecular Devices’ Director of Operations from 1993 to 1995. During 1993, Mr. Murray was a consultant to Tandem Computers, Incorporated, a computer manufacturer. From 1991 to 1993, Mr. Murray was Vice President of Marketing and Manufacturing at Electromer Corporation, an electronic component company, and from 1989 to 1991, as Vice President and General Manager of Comptronix Corp., a contract manufacturing company. Prior to that, Mr. Murray was Vice President of Operations of Gould, Inc., a diversified conglomerate. Mr. Murray holds an M.S. in Electrical Engineering from San Jose State University and a B.S. from the University of California at Davis. John S. Senaldi
Thomas J. O’Lenic has served as Vice President, in charge of Worldwide Marketing of the CompanyNorth American Sales and Service since August 1998.January 2002. From 19931995 to 1998,2002, Mr. SenaldiO’Lenic served in various managementSales Management positions at Becton Dickinson and Company, a research and diagnostic company, including the positions ofMolecular Devices, most recently as Director of Business DevelopmentNorth American Sales, Life Sciences Division. From 1994 to 1995, Mr. O’Lenic was with PerSeptive Biosystems, a bioanalytical instrument company. From 1990 to 1994, Mr. O’Lenic worked for Millipore Corporation, a multinational bioscience company, and Senior Product Manager in both Europe and North Americafrom 1989 to 1990, he worked for Becton's Diabetes Healthcare business. Most recently, he was inBios Corporation, a Program Management role for Becton's Immunocytometry Systems Division. Prior to joining Becton Dickinson,life science products company. Mr. Senaldi held various management positions in manufacturing and marketing with General Electric Company's Medical Systems Business Group and in engineering functions with several start-up medical diagnostic companies. Mr. SenaldiO’Lenic holds an MBA from Harvard Business School, an MSEE from Rensselaer Polytechnic Institute and a B.S. in EngineeringBiology from Trinity College. the University of South Florida.
Patricia C. Sharp was appointedhas served as Vice President, of Human Resources of the Company effectivesince September 2000. From 1997 to 2000, Ms. Sharp served as a Human Resources consultant at Sharp Associates Consulting specializing in Human Resources management, leadership and organizational development. Previously, Ms. Sharp was withworked at Apple Computer, Inc., as Senior Vice President, Human Resources. Ms. Sharp has a B.A. in Behavioral Sciences from San Jose State University. Andrew T. Zander,
J. Richard Sportsman, Ph.D., joined the Company has served as Vice President, Engineering in March 2000. Dr. Zander came to the Company from Transgenomic, where he was Vice President,Assay and Reagent Research and Development, and priorsince August 2002. From 2000 to that he was at Varian Associates for 12 years, where he was a2002, Dr. Sportsman served as Director of Research for Varian's corporate R&D activities. Before Varian, he had workedBiochemistry of Molecular Devices. From 1998 to 2000, Dr. Sportsman served as Senior Director, Assay Systems, at Perkin-Elmer and Beckman. As an Officer in the U.S. Naval Reserve, he worked with the Office of Naval ResearchLJL BioSystems. From 1993 to 1998, Dr. Sportsman served as a Scientific Liaison Officer. Dr. Zander hold a B.S. in Chemistry from the UniversityStaff Scientist and Director of Illinois and a Ph.D. in Analytical Chemistry from the UniversityMolecular Recognition at Telik, Inc. (formerly Terrapin Technologies, Inc.).

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EXECUTIVE COMPENSATION
Compensation of Maryland. EXECUTIVE COMPENSATION COMPENSATION OF DIRECTORS For the year 2001, eachDirectors
      Each member of the Company'sMolecular Devices’ Board of Directors, will receive $1,000other than Molecular Devices’ Chief Executive Officer, Dr. Keegan, receives an annual retainer of $10,000 (with the exception of Molecular Devices’ Audit Committee Chairman, Mr. Bowman, who receives $12,000) payable semiannually. Each director also receives $1,500 for each Board meeting attended in person by such director and $750 for each meeting attended via teleconference. Each Board committee member receives $1,000 for each committee meeting attended in person and $500 for each Board committee meeting attended.attended via teleconference. The total compensation paid to non-employee directors in fiscal year 2004 was $136,500. In addition, the members of the Board may be reimbursed for out-of-pocket and travel expenses incurred in connection with attendance at Board and committee meetings. 16 Since the Company was founded in 1983 through the end of fiscal year 2000, Dr. McConnell provided consulting services to the Company regarding, among other matters, the Company's research and development activities and business strategy. Dr. McConnell was paid $5,000 per month for such services. This consulting arrangement ended on December 31, 2000. During
      In September 1995, the Board adopted the 1995 Non-Employee Directors' Stock OptionDirectors’ Plan (the "Directors' Plan") to provide for the automatic grant of options to purchase shares of Common Stockcommon stock to non-employee directors of the Company ("Non-Employee Directors"). The maximum number of shares of Common Stock that may be issued pursuant to options granted under the Directors' Plan is 347,500.Molecular Devices. Pursuant to the terms of the Directors'Directors’ Plan, each Non-Employee Director isnon-employee director was automatically granted an option to purchase 16,50010,000 shares of Common Stockcommon stock on the date of his or her election to the Board. On the date of adoption of the Directors' Plan, each person who was then a Non-Employee Director of the Company was granted an option to purchase 16,500 shares of Common Stock of the Company under the Directors' Plan, at an exercise price of $5.25 per share. Thereafter, each Non-Employee Director isnon-employee director was automatically granted an option to purchase an additional 16,500 shares of Common Stock under the Directors' Plan upon full vesting of any stock option previously granted to such person under the Directors' Plan. Each newly elected Non-Employee Director is automatically granted an option to purchase 10,000 shares of Common Stock on the date of his or her initial election to the Board and each Non-Employee Director will be granted an option to purchase an additional 4,000 shares of Common Stockcommon stock immediately following each annual meeting of stockholders. The Company's currently existing non-employee directors will not receive any option grants under the Directors' Plan until September 2001 when their current options under the Directors' Plan fully vest, at which time they will be treated as first-time elected non-employee directors and receive the 10,000 share initial grant at that time, and will receive the 4,000 share grants at the annual meetings of stockholders thereafter. Outstanding options under the Directors'Directors’ Plan will vest over a period of threefour years from the date of grant in equal annual installments. The exercise price of options granted under the Directors'Directors’ Plan must equal or exceed the fair market value of the Common Stockcommon stock on the date of grant. No option granted under the Directors'Directors’ Plan may be exercised after the expiration of ten years from the date it was granted. Options granted under the Directors'Directors’ Plan are generally non-transferable. The Board may suspend or terminate the Directors' Plan at any time. In the event of a merger or consolidation, or a reverse merger or reorganization in which the CompanyMolecular Devices is not the surviving corporation, options outstanding under the Directors'Directors’ Plan will automatically become fully vested and will terminate if not exercised prior to such event. FutureThe Board may suspend or terminate the Directors’ Plan at any time. Assuming stockholder approval of the 2005 Equity Plan, the Directors’ Plan will be terminated, and all option grants to non-employee directors will thereafter be made under the Directors'2005 Equity Plan. For more information, please refer to the information under “Proposal 2 — Approval of the Molecular Devices Corporation 2005 Equity Incentive Plan.”
      As indicated above, the Directors’ Plan will vest over a periodprovides for the automatic grant of four years froman option to purchase 4,000 shares of common stock to each non-employee director immediately following each annual meeting of stockholders. However, during 2003 and 2004, no automatic grants of options were validly made to the non-employee directors under the Directors’ Plan because there were not sufficient shares of common stock available for issuance under the Directors’ Plan at the time of the 2003 and 2004 Annual Meetings of Stockholders. If sufficient shares of common stock had been available for issuance under the Directors’ Plan, each non-employee director would have received an option to purchase 4,000 shares of common stock at an exercise price of $16.91 per share in 2003 and an option to purchase 4,000 shares of common stock at an exercise price of $17.94 per share in 2004. Accordingly, on April 13, 2005, the Board approved the grant to each non-employee director under the 1995 Option Plan of options to purchase an aggregate of 8,000 shares of common stock at an exercise price of $19.25 per share, the fair market value of the common stock on the date of grant. 17 COMPENSATION OF EXECUTIVE OFFICERS SUMMARY OF COMPENSATIONThe vesting schedules, expiration date and other terms of these options generally reflect the vesting, expiration date and other terms that would have applied if the options had been granted as automatic grants under the Directors’ Plan in 2003 and 2004. In addition, the Board approved the payment of $14,600 in cash to each non-employee director, which amount was intended to compensate the non-employee directors for the difference in exercise prices between the exercise prices at which options would have been automatically granted under the Directors’ Plan in 2003 and 2004 and the exercise price of the options granted in April 2005.

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Compensation of Executive Officers
      The following table shows for the fiscalcalendar years ended December 31, 1998, 19992002, 2003 and 2000,2004, compensation awarded or paid to, or earned by, the Company'spersons who served as Molecular Devices’ Chief Executive Officer and its other four most highly compensated executive officers at December 31, 20002004 (the "Named“Named Executive Officers"Officers”): SUMMARY COMPENSATION TABLE .
Summary Compensation Table
                          
      Long-Term  
    Annual Compensation Compensation  
         
      Other Annual Securities All Other
      Bonus Compensation Underlying Compensation
Name and Principal Position Year Salary ($) ($)(1) ($) Options (#) ($)(2)
             
Joseph D. Keegan, Ph.D.   2004  $396,667  $645,000  $28,515(3)  60,000  $16,230 
 President and Chief  2003   377,445   468,084   13,130(4)  47,500   9,029 
 Executive Officer  2002   364,999   370,000   13,800(5)  60,000   11,887 
Timothy A. Harkness  2004   260,833   234,750   750(6)  35,000   10,930 
 Senior Vice President  2003   237,499   142,500      32,500   3,104 
 and Chief Financial Officer  2002   224,999   110,000   74,275(7)  35,000   4,560 
Robert J. Murray  2004   209,633   125,780      25,000   4,514 
 Vice President,  2003   201,500   90,675      22,500   8,234 
 Operations  2002   195,000   78,000      25,000   6,253 
Patricia C. Sharp  2004   209,633   125,780   13,659(7)  25,000   3,848 
 Vice President,  2003   201,500   100,750   13,659(7)  25,000   5,191 
 Human Resources  2002   195,000   87,750      27,500   5,293 
Thomas J. O’Lenic  2004   200,400   140,280   3,399(6)  25,000   4,485 
 Vice President, North  2003   191,167   95,583   2,152(6)  22,500   3,757 
 American Sales and  2002   185,000   65,167(8)  21,718(9)  40,000   3,396 
 Service                        
ANNUAL COMPENSATION LONG-TERM COMPENSATION AWARDS --------------------------------- ------------------------------ RESTRICTED SECURITIES NAME AND PRINCIPAL STOCK AWARDS UNDERLYING ALL OTHER POSITION YEAR SALARY ($) BONUS ($)
(1) ($) OPTIONS (#) COMPENSATION ($) -------- ---- ---------- ------------ --- ----------- ---------------- Joseph D. Keegan, Ph.D............ 2000 $325,000 $195,000 - 75,000 $14,651(3) 1999 296,670 165,000 - 50,000 14,540(4) PresidentRepresents amounts accrued by Molecular Devices in 2002, 2003 and Chief Executive Officer 1998 210,015 105,000 $577,500(2) 170,000 163,962(5) Timothy A. Harkness............... 2000 189,333 100,000 - 30,000 2,104(7) Vice President2004 but paid in 2003, 2004 and Chief Financial 1999 177,083 79,688 - 30,000 1,859(7) Officer 1998 74,479 35,750 $167,500(6) 75,000 89,124(8) Tony M. Lima...................... 2000 189,000 95,000 - 25,000 1,929(7) Vice President, Sales2005 at the election of Molecular Devices.
(2) Represents the taxable portion of group life insurance paid by Molecular Devices, supplemental health plan amounts reimbursed by Molecular Devices, and Service 1999 179,170 71,688 - 30,000 2,100(7) 1998 76,291 36,619 - 50,000 1,755(7) John S. Senaldi................... 2000 172,577 80,000 - 25,000 1,792(7) Vice President, Marketing 1999 164,170 65,668 - 30,000 1,792(7) 1998 64,707 31,000 $36,875(9) 46,000 31,622(10) Robert J. Murray.................. 2000 183,750 75,000 - 22,500 1,583(7) Vice President, Operations 1999 160,683 64,273 - 20,000 2,231(7) 1998 124,600 50,000 - - 2,161(7) Molecular Devices’ discretionary contributions to the executive officer’s 401(k) account.
(3) Consists of the following payments made by Molecular Devices: (i) $12,000 for the use of an automobile and (ii) $16,515 for professional services.
(4) Consists of the following payments made by Molecular Devices: (i) $12,000 for the use of an automobile and (ii) $1,130 for professional services.
(5) Consists of the following payments made by Molecular Devices: (i) $12,000 for the use of an automobile and (ii) $1,800 for professional services.
(6) Consists of payments made by Molecular Devices for the use of an automobile.
(7) Represents loan amount forgiven by Molecular Devices for the previous payment of certain taxes.
(8) Represents $9,567 in commissions earned and $55,600 in bonuses earned.
(9) Consists of the following payments made by Molecular Devices: (i) $1,118 for the use of an automobile, (ii) $12,496 for relocation costs, and (iii) $8,104 in reimbursement for taxes related to the payment of relocation costs.
(1) Represents amounts accrued by the Company in 1998, 1999 and 2000, but paid in 1999, 2000 and 2001 at the election of the Company. (2) Consists of an award of 30,000 shares of restricted stock valued at $577,500 on the date of grant. (3) Consists of the following payments made by the Company: (i) $1,151 for the taxable portion of the group life insurance, (ii) $1,500 for the Company's discretionary contribution to employee's 401(k) account, and (iii) $12,000 for use of automobile by employee. (4) Consists of the following payments made by the Company: (i) $1,040 for the taxable portion of group life insurance, (ii) $1,500 for the Company's discretionary contribution to employee's 401(k) account, and (iii) $12,000 for use of automobile by employee. (5) Consists of the following payments made by the Company: (i) $150,000 signing bonus upon employment with the Company on March 30, 1998, (ii) $780 for the taxable portion of group life insurance (iii) $1,500 for the Company's discretionary contribution to employee's 401(k) accounts, (iii) $2,682 for relocation costs reimbursed to the employee, and (iv) $9,000 for automobile costs reimbursed to the employee. (6) Consists of an award of 10,000 shares of restricted stock valued at $167,500 on the date of grant. (7) Represents the taxable portion of group life insurance paid by the Company and the Company's discretionary contribution to employee's 401(k) account. (8) Consists of the following payments made by the Company: (i) $87,500 signing bonus upon accepting a new position with the Company on July 9, 1998, and (ii) $1,624 for the taxable portion of group life insurance and the Company's discretionary contribution to employee's 401(k) account. (9) Consists of an award of 2,500 shares of restricted stock valued at $36,875 on the date of grant. (10) Consists of the following payments made by the Company: (i) $30,000 signing bonus upon accepting a position with the Company on August 6, 1998, (ii) $1,622 for the taxable portion of group life insurance and the Company's discretionary contribution to employee's 401(k) accounts. STOCK OPTION GRANTS AND EXERCISES The Company grants options to its executive officers under its 1995

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Stock Option Plan (the "Option Plan"). As of February 15, 2001, options to purchase a total of 1,235,563 shares were outstanding under the Option PlanGrants and options to purchase 313,211 shares remained available for grant thereunder. 18 Exercises
      The following tables show, for the fiscal year ended December 31, 2000,2004, certain information regarding options granted to, exercised by, and held at year end by, each of the Named Executive Officers:
OPTION GRANTS IN LAST FISCAL YEAR POTENTIAL REALIZABLE OPTION GRANTS IN LAST FISCAL YEAR VALUE AT ASSUMED ANNUAL --------------------------------- RATES OF STOCK PRICE % OF TOTAL APPRECIATION FOR OPTION NUMBER OF OPTIONS TERM (3) SECURITIES GRANTED TO EXERCISE ------------------------- UNDERLYING EMPLOYEES IN PRICE EXPIRATION NAME GRANTED (#) FISCAL YEAR(1) ($/SH) (2) DATE 5% ($) 10% ($) - ---- ----------- -------------- ---------- ---- ------ ------- Joseph D. Keegan, Ph.D.(4)....... 75,000 9.96% $48.00 02/07/10 $2,332,740 $5,846,897 Timothy A. Harkness(4)........... 30,000 3.99% 48.00 02/07/10 933,096 2,338,759 Tony M. Lima(4).................. 25,000 3.32% 48.00 02/07/10 777,580 1,948,966 John S. Senaldi(4)............... 25,000 3.32% 48.00 02/07/10 777,580 1,948,966 Robert J. Murray (4)............. 22,500 2.99% 48.00 02/07/10 699,822 1,754,069
(1) Based on 753,309 shares subjectOfficers. All options were granted pursuant to options granted to employees in 2000. (2) The exercise price is equal to 100% of the fair market value of the Common Stock on the date of the Grant. (3) The potential realizable value is calculated based on the term of the option at its time of grant (10 years) and is calculated by assuming that the stock price on the date of grant as determined by the Board of Directors appreciates at the indicated annual rate compounded annually for the entire term of the option and that the option is exercised and sold on1995 Option Plan. During the last day of its term for the appreciated price. The 5% and 10% assumed rates of appreciation are derived from the rules of the Securities and Exchange Commission and do not represent the Company's estimate or projection of the future Common Stock price. (4) The options have a ten-year term, subject to earlier termination upon death, disability or termination of employment. These options vest at the rate of 25% per year. AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND FISCAL YEAR-END OPTION VALUES
NUMBER OF SECURITIES UNDERLYING VALUE OF UNEXERCISED UNEXERCISED OPTIONS AT IN-THE-MONEY FY-END (#) OPTIONS AT FY-END SHARES ACQUIRED VALUE EXERCISABLE/ ($) EXERCISABLE/ NAME ON EXERCISE (#) REALIZED ($) UNEXERCISABLE UNEXERCISABLE(1) - ---- --------------- ------------ ------------- ---------------- Joseph A. Keegan, Ph.D......... 50,000 $ 2,546,875 56,000/189,000 $2,667,750/$6,873,188 Timothy A. Harkness............ 35,310 1,490,816 5,940/93,750 307,024/3,686,016 Tony M. Lima................... 4,300 153,725 27,500/75,000 1,238,381/2,849,063 John S. Senaldi................ 25,900 1,786,512 2,300/72,800 124,631/2,822,663 Robert J. Murray............... 34,999 823,227 24,500/40,000 2,151,572/1,559,928
- -------------------- (1) Represents the fair market value of the underlying shares on the last day of the fiscal year, ($68.4375 based onoptions were granted under the closing sales1995 Option Plan covering shares in the amounts as follows: all executive officers as a group totaled 271,000 shares, and all employees (excluding executive officers) as a group totaled 186,600 shares.
Option Grants in Last Fiscal Year
                         
  Individual Grants Potential Realizable Value
    at Assumed Annual Rates
  Number of Percentage of   of Stock Price
  Securities Total Options   Appreciation for Option
  Underlying Granted to Exercise or   Term(3)
  Options Employees in Base Price Expiration  
Name Granted (#)(1) Fiscal Year(2) ($/SH) Date 5% ($) 10% ($)
             
Joseph D. Keegan, Ph.D.   60,000   12.13% $19.66   02/11/14  $741,844  $1,879,979 
Timothy A. Harkness  35,000   7.08%  19.66   02/11/14   432,742   1,096,654 
Robert J. Murray  25,000   5.06%  19.66   02/11/14   309,102   783,324 
Patricia C. Sharp  25,000   5.06%  19.66   02/11/14   309,102   783,324 
Thomas J. O’Lenic  25,000   5.06%  19.66   02/11/14   309,102   783,324 
(1) The options have a ten-year term, subject to earlier termination upon death, disability or termination of employment. Options vest at the rate of 25% per year. The exercise price per share was equal to the fair market value of Molecular Devices’ common stock on the date of grant.
(2) Based upon options to purchase 494,500 shares granted to employees of Molecular Devices during the fiscal year ended December 31, 2004.
(3) The potential realizable value is calculated based on the term of the option at its time of grant, or ten years, compounded annually. Assumed stock price appreciation of 5% and 10% is used pursuant to rules promulgated by the SEC. The potential realizable value is calculated by assuming that the stock price on the date of grant appreciates at the indicated rate for the entire term of the option and that the option is exercised and sold on the last day of its term at the appreciated price. No gain to the optionee is possible unless the stock price increases over the option term.
Aggregated Option Exercises in Last Fiscal Year and Fiscal Year End Option Values
                         
      Number of Securities  
      Underlying Unexercised Value of Unexercised In-the
  Shares   Options at December 31, Money Options at
  Acquired on Value 2004 (#)(1) December 31, 2004 ($)(2)
  Exercise Realized    
Name (#) ($) Exercisable Unexercisable Exercisable Unexercisable
             
Joseph D. Keegan, Ph.D.         316,031   112,969  $162,907  $139,956 
Timothy A. Harkness        163,280   64,220   186,052   93,099 
Robert J. Murray        92,530   45,470   62,008   64,792 
Patricia C. Sharp        112,343   47,657   46,482   70,768 
Thomas J. O’Lenic  28,468  $139,287   29,474   47,658   6,902   64,792 
(1) Reflects shares vested and unvested at December 31, 2004.
(2) Value is based on the fair market value of Molecular Devices’ common stock at December 31, 2004 ($20.10) with respect to in-the-money options minus the exercise price of the options.

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Employment, Severance and Change of the Common Stock as reported on the Nasdaq National Market) less the exercise price of the options multiplied by the number of shares underlying the option. EMPLOYMENT AGREEMENTS AND CHANGE IN CONTROL ARRANGEMENTS CHIEF EXECUTIVE OFFICER KEY EMPLOYEE AGREEMENTControl Arrangements
Chief Executive Officer Key Employee Agreement
      On March 11, 1998,July 29, 2004, Molecular Devices entered into an Amended Key Employee Agreement with Joseph D. Keegan, Ph.D., entered into a Key Employee Agreement with the Company that provided for the following: o Dr. Keegan was appointed as President and Chief Executive Officer effective March 30, 1998 (the "Employment Date"). 19 oof Molecular Devices. The agreement supersedes and replaces Dr. Keegan’s original Key Employment Agreement with Molecular Devices and the Change in Control Severance Benefit Plan established by Molecular Devices for Dr. Keegan. Pursuant to the terms of the agreement, Dr. Keegan would be paid an annualwill receive a base salary of $280,000. o Dr. Keegan would receive$400,000, which will be reviewed annually, and will be eligible for a one time "signing bonus" of $150,000. Such bonus was subject to repayment if Dr. Keegan terminated his employment with the Company within the first year of his employment. o Dr. Keegan is eligible to receive an annualdiscretionary performance bonus of up to 50%100% of his base salary based on achievementthe attainment of certain corporate goals specified by the Board. o The Board granted Dr. Keegan options to purchase 170,000 shares of the Company's Common Stock with an exercise price equal to the fair market value of the Common Stock on the Employment Date. The Options will vest over five years with 34,000 shares vesting on the first anniversary of the Employment Date and 8,500 shares vesting every June 30, September 30, December 30, and March 30 thereafter. Vesting ceases if Dr. Keegan's employment terminates at any time for any reasonestablished in agreement with the following exceptions: (a) Dr. Keegan is retained by the Company in a post-employment consulting position, as specified, thus providing for an additional yearBoard of vesting, or (b) if Dr. Keegan is demoted without cause, as defined in the agreement, within two years following certain defined transactions, then vesting of the remaining unvested options will accelerate such that Dr. Keegan will be fully vested with respect to the options to purchase 170,000 shares of the Company's Common Stock. o The Board granted Dr. Keegan an aggregate of 30,000 shares of the Company's Common Stock subject to applicable securities laws restrictions, over two years. A total of 3,750 shares will be granted following the completion of each quarter of service with the Company as President and Chief Executive Officer on June 30, 1998 and 1999, September 30, 1998 and 1999, December 30, 1998 and 1999, and March 30, 1999 and 2000. Upon granting, each individual grant would fully earned and vested. Granting of stock would cease if Dr. Keegan's employment terminated at any time for any reason with the following exception: if Dr. Keegan was demoted without cause, as defined in the agreement, within two years following certain defined transactions, then granting of the remaining ungranted shares would accelerate such that Dr. Keegan would be granted a total of 30,000 shares of the Company's Common Stock. The Company agreed to loan Dr. Keegan amounts required for the payment of tax obligations related to these share grants. As of December 31, 2000, $378,825 was outstanding under these loans. oDirectors.
      In the event Dr. Keegan's employmentKeegan is terminated by the Company without cause as defined in the agreement, the Company shall provideor Dr. Keegan resigns from Molecular Devices for good reason, other than in connection with a one-year consulting agreement, as defined, and outplacement services. CHIEF FINANCIAL OFFICER EMPLOYEE AGREEMENTchange in control, Dr. Keegan will, subject to certain conditions, be entitled to receive certain severance benefits, including the following:
• Molecular Devices will retain Dr. Keegan as a consultant for a period of one year following his termination, during which time he will be entitled to a monthly cash payment equal to 1/12th of the sum of (i) his annual base salary in effect at the time of his termination plus (ii) the bonus amount Dr. Keegan would have earned at 100% of target for the year in which the termination occurs.
• The outstanding stock options held by Dr. Keegan as of the date of his termination will become fully vested and exercisable as of that date.
      In the event Dr. Keegan is terminated without cause or Dr. Keegan resigns from Molecular Devices for good reason within two months prior to, or 24 months after, a change in control, Dr. Keegan will, subject to certain conditions, be entitled to receive certain severance benefits (in lieu of the severance benefits described above), including the following:
• Dr. Keegan will be entitled to a single lump-sum payment equal to the sum of (i) 24 months of his annual base salary in effect at the time of his termination, plus (ii) a bonus amount equal to twice what Dr. Keegan would have earned at 100% of target for the year in which the termination occurs.
• The outstanding stock options held by Dr. Keegan as of the date of his termination will become fully vested and exercisable as of that date.
Chief Financial Officer Employment Agreement
      On July 8, 1998,December 17, 2004, Molecular Devices entered into an Amended Key Employee Agreement with Timothy A. Harkness, Senior Vice President and Chief Financial Officer of Molecular Devices. The agreement supersedes and replaces Mr. Harkness’ original offer letter agreement with Molecular Devices and the Change in Control Severance Benefit Plan established by Molecular Devices for Mr. Harkness. Pursuant to the terms of the agreement, Mr. Harkness will receive a base salary of $275,000, which will be reviewed annually, and will be eligible for a discretionary performance bonus of up to 60% of his base salary based on the attainment of certain corporate goals established in agreement with the Chief Executive Officer of Molecular Devices.
      In the event Mr. Harkness is terminated without cause or Mr. Harkness resigns from Molecular Devices for good reason, other than in connection with a change in control, Mr. Harkness will, subject to certain conditions, be entitled to receive certain severance benefits, including the following:
• Molecular Devices will retain Mr. Harkness as a consultant for a period of one year following his termination, during which time he will be entitled to a monthly cash payment equal to 1/12th of the sum of (i) his annual base salary in effect at the time of his termination plus (ii) the bonus amount Mr. Harkness would have earned at 100% of target for the year in which the termination occurs.
• The outstanding stock options held by Mr. Harkness as of the date of his termination will become fully vested and exercisable as of that date.

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      In the event Mr. Harkness is terminated without cause or Mr. Harkness resigns from Molecular Devices for good reason within two months prior to, or 24 months after, a change in control, Mr. Harkness will, subject to certain conditions, be entitled to receive certain severance benefits (in lieu of the severance benefits described above), including the following:
• Mr. Harkness will be entitled to a single lump-sum payment equal to the sum of (i) 18 months of his annual base salary in effect at the time of his termination, plus (ii) 1.5 times the bonus amount Mr. Harkness would have earned at 100% of target for the year in which the termination occurs.
• The outstanding stock options held by Mr. Harkness as of the date of his termination will become fully vested and exercisable as of that date.
Vice President Employment Agreements
      On July 25, 2000, Patricia C. Sharp, Vice President of Human Resources, entered into an Employee Agreementemployment letter agreement with the CompanyMolecular Devices that provided for the following: o Mr. Harkness was appointed as
• Ms. Sharp was eligible to receive an initial annual base salary of $185,000 per year and an initial bonus of $50,000. Ms. Sharp is also eligible to receive certain discretionary bonuses.
• Ms. Sharp was eligible to receive options to purchase 47,500 shares of Molecular Devices common stock. The options vest over four years with 11,875 shares vesting on each anniversary of the employment date.
• Ms. Sharp was eligible to receive an aggregate of 2,500 shares of restricted common stock. The shares would be granted ratably and quarterly over a period of two years. Molecular Devices also agreed to loan Ms. Sharp amounts required for the payment of tax obligations related to these share grants.
      On January 10, 2002, Tom O’Lenic, Vice President, of FinanceNorth America Sales and Chief Financial Officer, effective July 9, 1998 (the "Employment Date"). o Mr. Harkness would be paidService, entered into an employment letter agreement with Molecular Devices. The agreement provides for an annual base salary of $150,000. His salary would increase to $162,000$185,000 per year in 3 months and $175,000 per year in 6 months uponMr. O’Lenic’s eligibility to receive certain milestone achievements. odiscretionary bonuses. Pursuant to the agreement, Mr. Harkness would receive a one time hiring bonus of $87,500. o Mr. Harkness is eligible to participate in the Company's bonus plan at 40% of his base salary prorated for employment tenure. o Mr. HarknessO’Lenic was eligible to receive options to purchase 75,00040,000 shares of the Company's Common Stock.Molecular Devices’ common stock. The options will vest over five years with 15,000 shares vesting on the first anniversarya period of the Employment Date and 3,750 shares vesting every quarter thereafter. 20 o Mr. Harkness is eligible to receive an aggregate of 10,000 shares of the Company's Common Stock. A total of 1,250 shares would be granted following each quarter of service with the Company. Upon granting, each share will be fully earned and vested. If Mr. Harkness is terminated without cause within the first two years, then (i) the granting of shares will accelerate such that Mr. Harkness would receive 10,000 shares of the Company's Common Stock and (ii) Mr. Harkness would receive a one-time severance payment equal to the prior 6 months compensation. The Company agreed to loan Mr. Harkness amounts required for the payment of tax obligations related to these share grants. As of December 31, 2000, $148,549 was outstanding under these loans. o In the event of a change of control resulting in either termination or demotion, all of Mr. Harkness' stock options and shares will become fully vested on such date. In addition, Mr. Harkness would be granted a one-time severance payment equal to the last 12 months' compensation. VICE PRESIDENT EMPLOYMENT AGREEMENTfour years.
      On July 9, 1998, Tony M. Lima,October 4, 1993, Robert J. Murray, Vice President, of Worldwide Sales and Service,Operation, entered into an employment letter agreement with the Company that providedMolecular Devices. The agreement provides for the following: o Mr. Lima would be paid an annual base salary of $175,000. o$100,000 per year and Mr. Lima is eligibleMurray’s eligibility to participate inreceive certain discretionary bonuses. Pursuant to the Company's bonus plan at 40% of his base salary prorated from the time he has been employed, with a guaranteed minimum bonus of $30,000 under the plan for the 1998 plan year. oagreement, Mr. LimaMurray was eligible to receive options to purchase 50,00020,000 shares of Molecular Devices’ common stock with vesting pursuant to the Company's Common Stock. The options will vest over five years with 10,000 shares vesting on each of the first and second anniversary of the employment date and 2,500 shares vesting quarterly following the second anniversary of the employment date. VICE PRESIDENT EMPLOYMENT AGREEMENT On July 13, 1998, John S. Senaldi, Vice President of Worldwide Marketing, entered into an employment agreement with the Company that provided for the following: o Mr. Senaldi would be paid an annual base salary of $160,020. Mr. Senaldi would receive a one time signing bonus of $30,000. o Mr. Senaldi is eligible to participate in the Company's bonus plan at 40% of his base salary prorated from the time he has been employed, with a guaranteed minimum bonus of $30,000 under the plan for the 1998 plan year. o Mr. Senaldi was eligible to receive options to purchase 46,000 shares of the Company's Common Stock. The options will vest over five years with 10,000 shares vesting on each of the first and second anniversary of the employment date and 2,500 shares vesting quarterly following the second anniversary of the employment date. o Mr. Senaldi was eligible to receive an aggregate of 2,500 shares of the Company's Common Stock. The shares will be granted ratably and quarterly over a period of two years. The Company agreed to loan Mr. Senaldi amounts required for the payment of tax obligations related to these share grants. As of December 31, 2000, $36,219 was outstanding under these loans. o In the event of a Change of Control, all of Mr. Senaldi's stock options and shares will become fully vested at such date. 21 CHANGE IN CONTROL SEVERANCE BENEFIT PLAN1995 Option Plan.
Change in Control Severance Benefit Plan
      In February 2001, the Board of Directors adopted a Change in Control Severance Benefit Plan to provide certain benefits and protections to designated executive officers who have not entered into individual severance benefit or change in control agreements with the Company.Molecular Devices. The plan provides that in the event of a constructive or involuntarily termination without cause within 13 months after a Change in Control, as defined in the plan, such terminated executive officer will receive (i) a(1) lump sum payment equal to 12 months'months’ salary, (ii)(2) a bonus payment equal to what would have been earned at 100% of target for the year of termination, (iii)(3) continued health insurance benefits for 18 months, unless the executive officer obtains coverage from another employer during that time, (iv)(4) full acceleration of vesting for all outstanding options and (v)(5) payment for an executive assistance program lasting up to three months and not to exceed $7,500, provided that the executive officer enrolls within six months following termination. If the total amount of paymentspayment under the plan would cause the executive officer to incur "golden parachute"“golden parachute” excise tax liability in connection with the Change in Control, then the payments will be reduced to the extent necessary to leave him or her in a better after-tax position than if no such reduction had occurred. The plan provides these certain benefits and protections to the following current executive officers: Gillian M.K. Humphries, Ph.D., Robert J. Murray, Thomas J. O’Lenic, Patricia C. Sharp, and J. Richard Sportsman, Ph.D.

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Compensation Committee Interlocks and Insider Participation
      As previously noted, the Compensation Committee is composed of three non-employee directors: Dr. Waitz and Messrs. Anderson and Marion. Mr. Marion served as an interim chief executive officer of Molecular Devices from October 1997 to March 1998. No member of the Compensation Committee is or was formerly a permanent officer or employee of Molecular Devices. No interlocking relationship exists between Molecular Devices’ Board of Directors or Compensation Committee and the Board of Directors or compensation committee of any other company, nor has such interlocking relationship existed in the past.

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REPORT OF THE COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS ON EXECUTIVE COMPENSATION(1)COMPENSATION1
      The Compensation Committee of the Board of Directors (the "Committee"“Committee”) is comprised of Mr. Anderson, Mr. Marion and Dr. Waitz, none of whom has been a permanent officer or employee of the Company.Molecular Devices. The Committee is responsible for establishing the Company'sMolecular Devices’ compensation for executive officers.
Overview. The goals of theMolecular Devices’ executive compensation program are to align compensation with business objectives and performance and to enable the CompanyMolecular Devices to attract, retain and reward executive officers and other key employees who contribute to the long-term success of the CompanyMolecular Devices and to motivate them to enhance long-term stockholder value. To meetMolecular Devices’ executive compensation program for 2004 was designed with these goals in mind and was fundamentally a pay-for-performance program. As discussed below, the executive compensation program for 2004 consisted of, and was intended to strike a balance among, the following three elements:
• Base Salary. Salary for the Chief Executive Officer is based principally on the Committee’s evaluation of corporate and individual performance, as well as competitive pay practices. The salaries for all other executive officers are determined by the Committee on the basis of similar criteria.
• Bonus. Executive bonuses are primarily based on an evaluation of individual and company-wide performance against qualitative and quantitative measures.
• Long-Term Incentive Compensation. Long-term incentive awards, comprised of stock option grants, are designed to insure that incentive compensation is linked to the long-term performance of Molecular Devices.
      Molecular Devices also offers to its executive officers participation (with all other eligible employees of Molecular Devices) in its 401(k) Plan and certain other benefits available generally to employees of Molecular Devices, as well as certain perquisites.
Base Salary. The Committee has adopteddetermines the base salary of the Chief Executive Officer and reviews and approves base salaries for each of Molecular Devices’ other executive officers annually. In setting or adjusting base salaries, the Compensation Committee examines both qualitative and quantitative factors relating to corporate and individual performance, as well as general economic factors such as increases in the cost of living. In many instances, the qualitative factors necessarily involve a subjective assessment by the Compensation Committee. The Compensation Committee neither bases its considerations on any single factor nor does it specifically assign relative weights to factors but rather considers a mix of the compensation elements of salary, bonusfactors and stock options. BASE SALARY. The Committee meets at least annually to review and approve each executive officer's salary for the ensuing year. When reviewing base salaries, the Committee considers the following factors, in order of importance: competitive pay practices,evaluates individual performance against goals,that mix both in absolute terms and in relation to other company executives. The Committee also reviews the reported compensation levels for executive officers of certain peer companies in the life sciences industry to enable it to set base salaries based on each executive officer’s level of responsibility breadthand within the parameters of knowledge and prior experience. To providebase salaries reported by those peer companies. The peer companies reviewed by the Committee withincluded a more information for making compensation comparisons, the Company surveys adiverse group of comparablelife sciences companies withthan those companies included in the peer group index used in the performance measurement comparison graph included in this proxy statement.
Bonus. Molecular Devices maintains a capitalization similar to that of the Company. BONUS. The bonus program is a discretionary program forto reward executive officers and other key employees of the Company. The Committee meets in the first quarter following the year of the awards to be made to determine the amount of the bonuses.for attaining individual performance objectives, as well as company-wide objectives. The bonus award depends on the extent to which the Companythese company-wide and individual performance objectives are achieved. The Company'sCompany-wide objectives consist of operating, strategic and financial goals that are considered to be critical to the Company'sMolecular Devices’ fundamental long-term goal of building stockholder value. For fiscal year 2000,2004, these goalsobjectives were primarily related to specific increases in revenue, operating income and earnings per share over the prior years. STOCK OPTIONS.year, the
1 The material in this report is not “soliciting material,” is not deemed “filed” with the SEC and is not to be incorporated by reference into any filing of Molecular Devices under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.

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introduction of new products, and the successful integration of Axon Instruments, Inc. As with setting or adjusting base salaries, the Compensation Committee neither bases its considerations on any single individual or company-wide performance factor nor does it specifically assign relative weights to factors, but rather considers a mix of factors and evaluates individual performance against that mix both in absolute terms and in relation to other company executives. Commensurate with Molecular Devices’ philosophy of pay-for-performance, bonuses represent a greater component of overall cash compensation for executive officers than for other employees.
Long-Term Incentive Compensation. The 1995 Option Plan maintained by the CompanyMolecular Devices was established to provide employees of the CompanyMolecular Devices with an opportunity to share, along with stockholders of the Company,Molecular Devices, in the long-term performance of the Company.Molecular Devices. Initial grants of stock options are generally made to eligible employees upon commencement of employment, with additional grants being made to certain employees periodically or following a significant change in the job responsibilities, scope or title of such employment. Stock options under the Options1995 Option Plan generally vest over a four or five-year period and expire ten years from the date of grant. The exercise price of such options is usually 100% of the fair market value of the underlying stock on the date of grant. - ---------- 1 The material in this report is not "soliciting material," is not deemed "filed" with the SEC, and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language contained in such filing. 22
      Guidelines for the number of stock options for each participant under the 1995 Option Plan are generally determined by a formula established by the Committee wherebyapplying several factors are applied to the salary and performance level of each participant and then related to the approximate market price of the stock at the time of grant. In awarding stock options, the Committee considers individual performance, overall contribution to the Company,Molecular Devices, officer retention, the number of unvested stock options held by the officer and the total number of stock options to be awarded. In April 2005, the Board adopted the 2005 Equity Plan as an amendment and restatement of the 1995 Option Plan. If approved by the stockholders, the 2005 Equity Plan will provide Molecular Devices with greater flexibility in designing long-term equity compensation in an environment where a number of companies have moved from traditional option grants to other stock or stock-based awards, including stock appreciation rights, stock purchase awards, stock bonus awards and stock unit awards. Accordingly, the Committee believes that the 2005 Equity Plan will allow Molecular Devices to utilize a broad array of equity incentives in order to secure and retain the services of Molecular Devices’ executive officers and to provide incentives for such persons to exert maximum efforts for the success of the long-term performance of Molecular Devices.
      Additional long-term equity incentives are provided through Molecular Devices’ 1995 Employee Stock Purchase Plan in which all eligible employees, including eligible executive officers of Molecular Devices, may purchase stock of Molecular Devices, subject to specified limits, at 85% of fair market value.
Section 162(m) of the Internal Revenue Code of 1986 limits the CompanyMolecular Devices to a deduction for federal income tax purposes of up to $1 million of compensation paid to certain Named Executive Officersnamed executive officers in a taxable year. Compensation above $1 million may be deducted if it is "performance-based“performance-based compensation." The Compensation Committee has determined that stock options granted under the Company's1995 Option Plan with an exercise price at least equal to the fair market value of the Company'sMolecular Devices’ common stock on the date of grant shall be treated as "performance-based compensation"“performance-based compensation” and any compensation recognized by a Named Executive Officer as a result of the grant of such a stock options is deductible by the Company. Molecular Devices.
CEO COMPENSATION. TheCompensation. In setting Dr. Keegan’s compensation for 2004, the Committee used the same procedures described above in setting the annualbase salary, bonus and long-term incentive compensation. In addition, the Committee considered the status of Dr. Keegan as Molecular Devices’ most senior officer, reviewed reported cash and incentive compensation for chief executive officers of certain peer companies in the life sciences industry, and considered the important role he has in achieving overall corporate goals. The Committee also believes that the bonus component of Dr. Keegan’s overall cash compensation should represent a higher percentage of cash compensation than it is the case for the other executive officers.
      For fiscal year 2004, Dr. Keegan’s compensation package consisted primarily of an annual base salary of $400,000, a cash bonus award and an award of a stock option awards forto purchase 60,000 shares of Molecular Devices’ common stock under the CEO.1995 Option Plan at an at an exercise price of $19.66 per share. Dr. Keegan was awarded a cash bonus of $645,000 based primarily on Molecular Devices overall financial and corporate

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performance in 2004, as well as Dr. Keegan’s leadership in advancing Molecular Devices’ performance objectives in fiscal 2004.
      The grant of restricted stockCommittee also reviewed perquisites and other compensation paid to Dr. Keegan was arrived at through arms-length negotiations in connection with his initial hire as CEO. The CEO's salary is determined based on comparisons with companies with a capitalization similarfor 2004, and found these amounts to that of the Company. SUMMARY.be reasonable.
Summary. Through the planscompensation arrangements described above, a significant portion of the Company'sMolecular Devices’ compensation program for its executive officers (including the CEO) is contingent upon the individual'sindividual’s and Company'sCompany’s performance, and realization of benefits by the CEO and the other executive officers is closely linked to increases in long-term stockholder value. The CompanyMolecular Devices remains committed to this philosophy of pay for performance,pay-for-performance, recognizing that the competitive market for talented executives and the volatility of the Company'sMolecular Devices’ business may result in highly variable compensation during any given annual period. COMPENSATION COMMITTEE David L. Anderson Andre F. Marion J. Allan Waitz, Ph.D. COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION As noted above,
Compensation Committee
David L. Anderson
André F. Marion
J. Allan Waitz, Ph.D.
CERTAIN TRANSACTIONS
      Molecular Devices has entered into employment agreements and other agreements with certain of its executive officers. See “Executive Compensation — Employment, Severance and Change in Control Arrangements.
      Molecular Devices has entered into indemnity agreements with certain officers and directors which provide, among other things, that Molecular Devices will indemnify such officer or director, under the Compensation Committee is comprised of three non-employee directors: Mr. Anderson, Mr. Marioncircumstances and Dr. Waitz. Mr. Marion served as an interim chief executive officer ofto the Company between October 1997extent provided for therein, for expenses, damages, judgments, fines and March 1998. No member of the Compensation Committeesettlements he or she may be required to pay in actions or proceedings to which he or she is or was formerlymay be made a permanentparty by reason of his or her position as a director, officer or employeeother agent of Molecular Devices, and otherwise to the Company. No interlocking relationship exists between the Company's Board of Directors or Compensation Committeefullest extent permitted under Delaware law and the board of directors or compensation committee of any other company, nor has such interlocking relationship existed in the past. 23 Molecular Devices’ bylaws.

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PERFORMANCE MEASUREMENT COMPARISON(1)COMPARISON1
      The following graph shows the total stockholder return of an investment of $100 in cash on December 29, 199531, 1999 for (i) the Company's Common Stock,Molecular Devices’ common stock, (ii) the Nasdaq Stock Market (U.S.) Index and (iii) a peer group index comprised of all public companies using SIC Code 3826 (Laboratory Analytical Instruments) (the "Peer Group"“Peer Group”). All values assume reinvestment of the full amount of all dividends and are calculated as of December 31 of each year: [PERFORMANCE CHART]
FISCAL YEAR ENDING COMPANY/INDEX/MARKET 12/29/1995 12/31/1996 12/31/1997 12/31/1998 12/31/1999 12/29/2000 Molecular Devices 100 148.21 202.38 207.14 495.24 651.79 Analytical Instruments 100 119.67 141.97 178.27 288.43 453.27 NASDAQ Market Index 100 124.27 152.00 214.39 378.12 237.66
CERTAIN TRANSACTIONS The Company has entered into employment agreements with certain of its executive officers. See "Employment Agreements." - ---------- (1)
COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN
AMONG MOLECULAR DEVICES CORPORATION,
THE NASDAQ STOCK MARKET (U.S.) INDEX AND A PEER GROUP
PERFORMANCE GRAPH
1 This Section is not "soliciting“soliciting material," is not deemed "filed"“filed” with the SEC and is not to be incorporated by reference ininto any filing of the CompanyMolecular Devices under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing. 24

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HOUSEHOLDING OF PROXY MATERIALS
      The SEC has adopted rules that permit companies and intermediaries (e.g., brokers) to satisfy the delivery requirements for proxy statements and annual reports with respect to two or more stockholders sharing the same address by delivering a single proxy statement addressed to those stockholders. This process, which is commonly referred to as “householding,” potentially means extra convenience for stockholders and cost savings for companies.
      This year, a number of brokers with account holders who are Molecular Devices stockholders will be “householding” our proxy materials. A single proxy statement may be delivered to multiple stockholders sharing an address unless contrary instructions have been received from the affected stockholders. Once you have received notice from your broker that it will be “householding” communications to your address, “householding” will continue until you are notified otherwise or until you notify your broker or Molecular Devices that you no longer wish to participate in “householding.” If, at any time, you no longer wish to participate in “householding” and would prefer to receive a separate proxy statement and annual report in the future you may (1) notify your broker, (2) direct your written request to: Investor Relations, Molecular Devices Corporation, 1311 Orleans Drive, Sunnyvale, California 94089 or (3) contact our Investor Relations representatives at (408) 747-1700. Stockholders who currently receive multiple copies of the proxy statement at their address and would like to request “householding” of their communications should contact their broker. In addition, Molecular Devices will promptly deliver, upon written or oral request to the address or telephone number above, a separate copy of the annual report and proxy statement to a stockholder at a shared address to which a single copy of the documents was delivered.
OTHER MATTERS
      The Board of Directors knows of no other matters that will be presented for consideration at the Annual Meeting. If any other matters are properly brought before the meeting, it is the intention of the persons named in the accompanying proxy to vote on such matters in accordance with their best judgment.
By Order of the Board of Directors
(-sig- James C. Kitch)
James C. Kitch
Secretary
April 22, 2005
A copy of Molecular Devices’ Annual Report to the Board of Directors /s/ James C. Kitch ------------------------------ James C. Kitch Secretary April 26, 2001 A COPY OF THE COMPANY'S ANNUAL REPORT TO THE SECURITIES AND EXCHANGE COMMISSION ON FORMSecurities and Exchange Commission on Form 10-K FOR THE FISCAL YEAR ENDED DECEMBERfor the fiscal ended December 31, 2000 IS AVAILABLE WITHOUT CHARGE UPON WRITTEN REQUEST TO: INVESTOR RELATIONS, MOLECULAR DEVICES CORPORATION, 1311 ORLEANS DRIVE, SUNNYVALE, CALIFORNIA 94089. 25 APPENDIX A CHARTER OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS PURPOSE: The purpose of the Audit Committee (the "Committee") of the Board of Directors (the "Board") of2004 is available without charge upon written request to: Investor Relations, Molecular Devices Corporation, 1311 Orleans Drive, Sunnyvale, California 94089.

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APPENDIX A
Molecular Devices Corporation
2005 Equity Incentive Plan
ADOPTED: APRIL 13, 2005
APPROVED BY STOCKHOLDERS:, 2005
TERMINATION DATE: APRIL 12, 2015
1.General.
      (a) Amendment and Restatement. The Plan is a Delaware corporation (the "Company"), shall be to make such examinations as are necessary to monitor the corporate financial reportingcomplete amendment and the internal and external auditsrestatement of the Company, to provideCompany’s 1995 Stock Option Plan that was previously adopted on October 30, 1995 (as thereafter amended, the“Prior Plan”). All outstanding awards granted under the Prior Plan shall remain subject to the Boardterms of the results of its examinations and recommendations derived therefrom, to outlinePrior Plan. All Stock Awards granted subsequent to the Board improvements made, or to be made, in internal accounting controls, to nominate independent auditors, and to provide such additional information and materials as it may deem necessary to make the Board awareeffective date of significant financial matters which require the Board's attention. COMPOSITION: The Committee will be comprised of two or more members of the Board. The members of the Committee and its Chairman will be appointed by and serve at the discretion of the Board. FUNCTIONS AND AUTHORITY: The operation of the Committeethis Plan shall be subject to the terms of this Plan.
      (b) Eligible Stock Award Recipients. The persons eligible to receive Stock Awards are Employees and Directors.
      (c) Available Stock Awards. The Plan provides for the grant of the following Stock Awards: (i) Incentive Stock Options, (ii) Nonstatutory Stock Options, (iii) Stock Purchase Awards, (iv) Stock Bonus Awards, (v) Stock Appreciation Rights, (vi) Stock Unit Awards, and (vii) Other Stock Awards.
      (d) General Purpose. The Company, by means of the Plan, seeks to secure and retain the services of the group of persons eligible to receive Stock Awards as set forth in Section 1(a), to provide incentives for such persons to exert maximum efforts for the success of the Company and any Affiliate and to provide a means by which such eligible recipients may be given an opportunity to benefit from increases in value of the Common Stock through the granting of Stock Awards.
2.Definitions.
      As used in the Plan, the following definitions shall apply to the capitalized terms indicated below:
      (a) “Affiliate”means (i) any corporation (other than the Company) in an unbroken chain of corporations ending with the Company, provided each corporation in the unbroken chain (other than the Company) owns, at the time of the determination, stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain, and (ii) any corporation (other than the Company) in an unbroken chain of corporations beginning with the Company, provided each corporation (other than the last corporation) in the unbroken chain owns, at the time of the determination, stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. The Board shall have the authority to determine (i) the time or times at which the ownership tests are applied, and (ii) whether “Affiliate” includes entities other than corporations within the foregoing definition.
      (b) “Board”means the Board of Directors of the Company.
      (c) “Capitalization Adjustment”has the meaning ascribed to that term in Section 11(a).
      (d) “Change in Control”means the occurrence, in a single transaction or in a series of related transactions, of any one or more of the following events:
      (i) any Exchange Act Person becomes the Owner, directly or indirectly, of securities of the Company representing more than fifty percent (50%) of the combined voting power of the Company’s then outstanding securities other than by virtue of a merger, consolidation or similar transaction. Notwithstanding the foregoing, a Change in Control shall not be deemed to occur (A) on account of the acquisition of securities of the Company by an investor, any affiliate thereof or

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any other Exchange Act Person from the Company in a transaction or series of related transactions the primary purpose of which is to obtain financing for the Company through the issuance of equity securities or (B) solely because the level of Ownership held by any Exchange Act Person (the“Subject Person”) exceeds the designated percentage threshold of the outstanding voting securities as a result of a repurchase or other acquisition of voting securities by the Company reducing the number of shares outstanding, provided that if a Change in Control would occur (but for the operation of this sentence) as a result of the acquisition of voting securities by the Company, and after such share acquisition, the Subject Person becomes the Owner of any additional voting securities that, assuming the repurchase or other acquisition had not occurred, increases the percentage of the then outstanding voting securities Owned by the Subject Person over the designated percentage threshold, then a Change in Control shall be deemed to occur;
      (ii) there is consummated a merger, consolidation or similar transaction involving (directly or indirectly) the Company and, immediately after the consummation of such merger, consolidation or similar transaction, the stockholders of the Company immediately prior thereto do not Own, directly or indirectly, either (A) outstanding voting securities representing more than fifty percent (50%) of the combined outstanding voting power of the surviving Entity in such merger, consolidation or similar transaction or (B) more than fifty percent (50%) of the combined outstanding voting power of the parent of the surviving Entity in such merger, consolidation or similar transaction, in each case in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such transaction;
      (iii) the stockholders of the Company approve or the Board approves a plan of complete dissolution or liquidation of the Company, or a complete dissolution or liquidation of the Company shall otherwise occur;
      (iv) there is consummated a sale, lease, exclusive license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries, other than a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries to an Entity, more than fifty percent (50%) of the combined voting power of the voting securities of which are Owned by stockholders of the Company in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such sale, lease, license or other disposition; or
      (v) individuals who, on the date this Plan is adopted by the Board, are members of the Board (the“Incumbent Board”) cease for any reason to constitute at least a majority of the members of the Board;provided, however, that if the appointment or election (or nomination for election) of any new Board member was approved or recommended by a majority vote of the members of the Incumbent Board then still in office, such new member shall, for purposes of this Plan, be considered as a member of the Incumbent Board.

      The term Change in Control shall not include a sale of assets, merger or other transaction effected exclusively for the purpose of changing the domicile of the Company.
      Notwithstanding the foregoing or any other provision of this Plan, the definition of Change in Control (or any analogous term) in an individual written agreement between the Company or any Affiliate and the Participant shall supersede the foregoing definition with respect to Stock Awards subject to such agreement;provided, however, that if no definition of Change in Control or any analogous term is set forth in such an individual written agreement, the foregoing definition shall apply.
      (e) “Code”means the Internal Revenue Code of 1986, as amended.
      (f) “Committee”means a committee of one (1) or more members of the Board to whom authority has been delegated by the Board in accordance with Section 3(c).
      (g) “Common Stock”means the common stock of the Company.
      (h) “Company”means Molecular Devices Corporation, a Delaware corporation.

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      (i) “Continuous Service”means that the Participant’s service with the Company or an Affiliate, whether as an Employee or Director, is not interrupted or terminated. A change in the capacity in which the Participant renders service to the Company or an Affiliate as an Employee or Director or a change in the entity for which the Participant renders such service, provided that there is no interruption or termination of the Participant’s service with the Company or an Affiliate, shall not terminate a Participant’s Continuous Service. For example, a change in status from an employee of the Company to a Director shall not constitute an interruption of Continuous Service. To the extent permitted by law, the Board or the chief executive officer of the Company, in that party’s sole discretion, may determine whether Continuous Service shall be considered interrupted in the case of any leave of absence approved by that party, including sick leave, military leave or any other personal leave. Notwithstanding the foregoing, a leave of absence shall be treated as Continuous Service for purposes of vesting in a Stock Award only to such extent as may be provided in the Company’s leave of absence policy or in the written terms of the Participant’s leave of absence.
      (j) “Corporate Transaction”means the occurrence, in a single transaction or in a series of related transactions, of any one or more of the following events:
      (i) a sale or other disposition of all or substantially all, as determined by the Board in its sole discretion, of the consolidated assets of the Company and its Subsidiaries;
      (ii) a sale or other disposition of at least ninety percent (90%) of the outstanding securities of the Company;
      (iii) the consummation of a merger, consolidation or similar transaction following which the Company is not the surviving corporation; or
      (iv) the consummation of a merger, consolidation or similar transaction following which the Company is the surviving corporation but the shares of Common Stock outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other property, whether in the form of securities, cash or otherwise.
      (k) “Covered Employee”means the chief executive officer and the four (4) other highest compensated officers of the Company for whom total compensation is required to be reported to stockholders under the Exchange Act, as determined for purposes of Section 162(m) of the Code.
      (l) “Director”means a member of the Board.
      (m) “Disability”means the permanent and total disability of a person within the meaning of Section 22(e)(3) of the Code.
      (n) “Employee”means any person employed by the Company or an Affiliate. However, service solely as a Director, or payment of a fee for such services, shall not cause a Director to be considered an “Employee” for purposes of the Plan.
      (o) “Entity”means a corporation, partnership or other entity.
      (p) “Exchange Act”means the Securities Exchange Act of 1934, as amended.
      (q) “Exchange Act Person”means any natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” shall not include (i) the Company or any Subsidiary of the Company, (ii) any employee benefit plan of the Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of the Company or any Subsidiary of the Company, (iii) an underwriter temporarily holding securities pursuant to an offering of such securities, (iv) an Entity Owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their Ownership of stock of the Company; or (v) any natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the effective date of the Plan as set forth in Section 14, is the Owner,

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directly or indirectly, of securities of the Company representing more than fifty percent (50%) of the combined voting power of the Company’s then outstanding securities.
      (r) “Fair Market Value”means, as of any date, the value of the Common Stock determined as follows:

      (i) If the Common Stock is listed on any established stock exchange or traded on the Nasdaq National Market or the Nasdaq SmallCap Market, the Fair Market Value of a share of Common Stock shall be the closing sales price for such stock (or the closing bid, if no sales were reported) as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Common Stock) on the date of determination, as reported inThe Wall Street Journalor such other source as the Board deems reliable. Unless otherwise provided by the Board, if there is no closing sales price (or closing bid if no sales were reported) for the Common Stock on the date of determination, then the Fair Market Value shall be the closing selling price (or closing bid if no sales were reported) on the last preceding date for which such quotation exists.
      (ii) In the absence of such markets for the Common Stock, the Fair Market Value shall be determined by the Board in good faith.
      (s) “Incentive Stock Option”means an Option intended to qualify as an incentive stock option within the meaning of Section 422 of the Code and the regulations promulgated thereunder.
      (t) “Non-Employee Director”means a Director who either (i) is not a current employee or officer of the Company or an Affiliate, does not receive compensation, either directly or indirectly, from the Company or an Affiliate for services rendered as a consultant or in any capacity other than as a Director (except for an amount as to which disclosure would not be required under Item 404(a) of Regulation S-K promulgated pursuant to the Securities Act(“Regulation S-K”)), does not possess an interest in any other transaction for which disclosure would be required under Item 404(a) of Regulation S-K, and is not engaged in a business relationship for which disclosure would be required pursuant to Item 404(b) of Regulation S-K; or (ii) is otherwise considered a “non-employee director” for purposes of Rule 16b-3.
      (u) “Nonstatutory Stock Option”means an Option not intended to qualify as an Incentive Stock Option.
      (v) “Officer”means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act and the rules and regulations promulgated thereunder.
      (w) “Option”means an Incentive Stock Option or a Nonstatutory Stock Option to purchase shares of Common Stock granted pursuant to the Plan.
      (x) “Option Agreement”means a written agreement between the Company and an Optionholder evidencing the terms and conditions of an Option grant. Each Option Agreement shall be subject to the terms and conditions of the Plan.
      (y) “Optionholder”means a person to whom an Option is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Option.
      (z) “Other Stock Award”means an award based in whole or in part by reference to the Common Stock which is granted pursuant to the terms and conditions of Section 7(e).
      (aa)“Other Stock Award Agreement”means a written agreement between the Company and a holder of an Other Stock Award evidencing the terms and conditions of an Other Stock Award grant. Each Other Stock Award Agreement shall be subject to the terms and conditions of the Plan.
      (bb) “Outside Director”means a Director who either (i) is not a current employee of the Company or an “affiliated corporation” (within the meaning of Treasury Regulations promulgated under Section 162(m) of the Code), is not a former employee of the Company or an “affiliated corporation” who receives compensation for prior services (other than benefits under a tax-qualified retirement plan)

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during the taxable year, has not been an officer of the Company or an “affiliated corporation,” and does not receive remuneration from the Company or an “affiliated corporation,” either directly or indirectly, in any capacity other than as a Director, or (ii) is otherwise considered an “outside director” for purposes of Section 162(m) of the Code.
      (cc) “Own,” “Owned,” “Owner,” “Ownership”A person or Entity shall be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities.
      (dd) “Participant”means a person to whom a Stock Award is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Stock Award.
      (ee) “Performance Criteria”means the one or more criteria that the Board shall select for purposes of establishing the Performance Goals for a Performance Period. The Performance Criteria that shall be used to establish such Performance Goals may be based on any one of, or combination of, the following: (i) earnings per share; (ii) earnings before interest, taxes and depreciation; (iii) earnings before interest, taxes, depreciation and amortization (EBITDA); (iv) net earnings; (v) total shareholder return; (vi) return on equity; (vii) return on assets, investment, or capital employed; (viii) operating margin; (ix) gross margin; (x) operating income; (xi) net income (before or after taxes); (xii) net operating income; (xiii) net operating income after tax; (xiv) pre- and after-tax income; (xv) pre-tax profit; (xvi) operating cash flow; (xvii) sales or revenue targets; (xviii) increases in revenue or product revenue; (xix) expenses and cost reduction goals; (xx) improvement in or attainment of expense levels; (xxi) improvement in or attainment of working capital levels; (xxii) economic value added (or an equivalent metric); (xxiii) market share; (xxiv) cash flow; (xxv) cash flow per share; (xxvi) share price performance; (xxvii) debt reduction; (xxviii) implementation or completion of projects or processes; (xxix) customer satisfaction; (xxx) total stockholder return; (xxxi) stockholders’ equity; and (xxxii) other measures of performance selected by the Board. Partial achievement of the specified criteria may result in the payment or vesting corresponding to the degree of achievement as specified in the Stock Award Agreement. The Board shall, in its sole discretion, define the manner of calculating the Performance Criteria it selects to use for such Performance Period.
      (ff) “Performance Goals”means, for a Performance Period, the one or more goals established by the Board for the Performance Period based upon the Performance Criteria. The Board is authorized at any time in its sole discretion, to adjust or modify the calculation of a Performance Goal for such Performance Period in order to prevent the dilution or enlargement of the rights of Participants, (a) in the event of, or in anticipation of, any unusual or extraordinary corporate item, transaction, event or development; (b) in recognition of, or in anticipation of, any other unusual or nonrecurring events affecting the Company, or the financial statements of the Company, or in response to, or in anticipation of, changes in applicable laws, regulations, accounting principles, or business conditions; or (c) in view of the Board’s assessment of the business strategy of the Company, performance of comparable organizations, economic and business conditions, and any other circumstances deemed relevant. Specifically, the Board is authorized to make adjustment in the method of calculating attainment of Performance Goals and objectives for a Performance Period as follows: (i) to exclude the dilutive effects of acquisitions or joint ventures; (ii) to assume that any business divested by the Company achieved performance objectives at targeted levels during the balance of a Performance Period following such divestiture; and (iii) to exclude the effect of any change in the outstanding shares of common stock of the Company by reason of any stock dividend or split, stock repurchase, reorganization, recapitalization, merger, consolidation, spin-off, combination or exchange of shares or other similar corporate change, or any distributions to common shareholders other than regular cash dividends. In addition, the Board is authorized to make adjustment in the method of calculating attainment of Performance Goals and objectives for a Performance Period 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 standards required by

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the Financial Accounting Standards Board; (iv) to exclude the effects to any statutory adjustments to corporate tax rates; (v) to exclude the impact of any “extraordinary items” as determined under generally accepted accounting principles; and (vi) to exclude any other unusual, non-recurring gain or loss or other extraordinary item.
      (gg) “Performance Period”means the one or more periods of time, which may be of varying and overlapping durations, as the Board may select, over which the attainment of one or more Performance Goals will be measured for the purpose of determining a Participant’s right to and the payment of a Stock Award.
      (hh) “Plan”means this Molecular Devices Corporation 2005 Equity Incentive Plan.
      (ii) “Rule 16b-3”means Rule 16b-3 promulgated under the Exchange Act or any successor to Rule 16b-3, as in effect from time to time.
      (jj) “Securities Act”means the Securities Act of 1933, as amended.
      (kk) “Stock Appreciation Right”means a right to receive the appreciation on Common Stock that is granted pursuant to the terms and conditions of Section 7(d).
      (ll) “Stock Appreciation Right Agreement”means a written agreement between the Company and a holder of a Stock Appreciation Right evidencing the terms and conditions of a Stock Appreciation Right grant. Each Stock Appreciation Right Agreement shall be subject to the terms and conditions of the Plan.
      (mm) “Stock Award”means any right granted under the Plan, including an Option, a Stock Purchase Award, Stock Bonus Award, a Stock Appreciation Right, a Stock Unit Award, or any Other Stock Award.
      (nn) “Stock Award Agreement”means a written agreement between the Company and a Participant evidencing the terms and conditions of a Stock Award grant. Each Stock Award Agreement shall be subject to the terms and conditions of the Plan.
      (oo) “Stock Bonus Award”means an award of shares of Common Stock which is granted pursuant to the terms and conditions of Section 7(b).
      (pp) “Stock Bonus Award Agreement”means a written agreement between the Company and a holder of a Stock Bonus Award evidencing the terms and conditions of a Stock Bonus Award grant. Each Stock Bonus Award Agreement shall be subject to the terms and conditions of the Plan.
      (qq) “Stock Purchase Award”means an award of shares of Common Stock which is granted pursuant to the terms and conditions of Section 7(a).
      (rr) “Stock Purchase Award Agreement”means a written agreement between the Company and a holder of a Stock Purchase Award evidencing the terms and conditions of a Stock Purchase Award grant. Each Stock Purchase Award Agreement shall be subject to the terms and conditions of the Plan.
      (ss) “Stock Unit Award”means a right to receive shares of Common Stock which is granted pursuant to the terms and conditions of Section 7(c).
      (tt) “Stock Unit Award Agreement”means a written agreement between the Company and a holder of a Stock Unit Award evidencing the terms and conditions of a Stock Unit Award grant. Each Stock Unit Award Agreement shall be subject to the terms and conditions of the Plan.
      (uu) “Subsidiary”means, with respect to the Company, (i) any corporation of which more than fifty percent (50%) of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the time, stock of any other class or classes of such corporation shall have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (ii) any partnership in which the Company has a direct or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than fifty percent (50%).

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      (vv) “Ten Percent Stockholder”means a person who Owns (or is deemed to Own pursuant to Section 424(d) of the Code) stock possessing more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or any Affiliate.
3.Administration.
      (a) Administration by Board. The Board shall administer the Plan unless and until the Board delegates administration of the Plan to a Committee, as provided in Section 3(c).
      (b) Powers of Board. The Board shall have the power, subject to, and within the limitations of, the express provisions of the Plan:
      (i) To determine from time to time (1) which of the persons eligible under the Plan shall be granted Stock Awards; (2) when and how each Stock Award shall be granted; (3) what type or combination of types of Stock Award shall be granted; (4) the provisions of each Stock Award granted (which need not be identical), including the time or times when a person shall be permitted to receive Common Stock pursuant to a Stock Award; and (5) the number of shares of Common Stock with respect to which a Stock Award shall be granted to each such person.
      (ii) To construe and interpret the Plan and Stock Awards granted under it, and to establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan or in any Stock Award Agreement, in a manner and to the extent it shall deem necessary or expedient to make the Plan fully effective.
      (iii) To amend the Plan or a Stock Award as provided in Section 12.
      (iv) To terminate or suspend the Plan as provided in Section 13.
      (v) Generally, to exercise such powers and to perform such acts as the Board deems necessary or expedient to promote the best interests of the Company and that are not in conflict with the provisions of the Plan.
      (vi) To adopt such procedures and sub-plans as are necessary or appropriate to permit participation in the Plan by Employees who are foreign nationals or employed outside the United States.
      (c) Delegation to Committee.
      (i) General. The Board may delegate some or all of the administration of the Plan to a Committee or Committees. If administration is delegated to a Committee, the Committee shall have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to delegate to a subcommittee any of the administrative powers the Committee is authorized to exercise (and references in this Plan to the Board shall thereafter be to the Committee or subcommittee), subject, however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. The Board may retain the authority to concurrently administer the Plan with the Committee and may, at any time, revest in the Board some or all of the powers previously delegated.
      (ii) Section 162(m) and Rule 16b-3 Compliance. In the sole discretion of the Board, the Committee may consist solely of two or more Outside Directors, in accordance with Section 162(m) of the Code, and/or solely of two or more Non-Employee Directors, in accordance with Rule 16b-3. In addition, the Board or the Committee, in its sole discretion, may (1) delegate to a committee of one or more members of the Board who need not be Outside Directors the authority to grant Stock Awards to eligible persons who are either (a) not then Covered Employees and are not expected to be Covered Employees at the time of recognition of income resulting from such Stock Award, or (b) not persons with respect to whom the Company wishes to comply with Section 162(m) of the Code, and/or (2) delegate to a committee of one or more members of the Board who need not be Non-Employee Directors the authority to grant Stock Awards to eligible persons who are not then subject to Section 16 of the Exchange Act.

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      (d) Delegation to an Officer. The Board may delegate to one or more Officers of the Company the authority to do one or both of the following (i) designate Officers and Employees of the Company or any of its Subsidiaries to be recipients of Stock Awards and the terms thereof, and (ii) determine the number of shares of Common Stock to be subject to such Stock Awards granted to such Officers and Employees of the Company;provided, however, that the Board resolutions regarding such delegation shall specify the total number of shares of Common Stock that may be subject to the Stock Awards granted by such Officer and that such Officer may not grant a Stock Award to himself or herself. Notwithstanding anything to the contrary in this Section 3(d), the Board may not delegate to an Officer authority to determine the Fair Market Value of the Common Stock pursuant to Section 2(r)(ii) above.
      (e) Effect of Board’s Decision. All determinations, interpretations and constructions made by the Board in good faith shall not be subject to review by any person and shall be final, binding and conclusive on all persons.
4.Shares Subject to the Plan.
      (a) Share Reserve. Subject to the provisions of Section 11(a) relating to Capitalization Adjustments, the number of shares of Common Stock that may be issued pursuant to Stock Awards shall not exceed, in the aggregate, four million three hundred and thirty-three thousand and eleven (4,333,011) shares of Common Stock.
      (b) Reversion of Shares to the Share Reserve. If any Stock Award shall for any reason expire or otherwise terminate, in whole or in part, without having been exercised in full, or if any shares of Common Stock issued to a Participant pursuant to a Stock Award are forfeited to or repurchased by the Company, including, but not limited to, any repurchase or forfeiture caused by the failure to meet a contingency or condition required for the vesting of such shares, then the shares of Common Stock not issued under such Stock Award, or forfeited to or repurchased by the Company, shall revert to and again become available for issuance under the Plan. If any shares subject to a Stock Award are not delivered to a Participant because such shares are withheld for the payment of taxes or the Stock Award is exercised through a reduction of shares subject to the Stock Award (i.e., “net exercised”), the number of shares that are not delivered to the Participant shall remain available for issuance under the Plan. If the exercise price of any Stock Award is satisfied by tendering shares of Common Stock held by the Participant (either by actual delivery or attestation), then the number of shares so tendered shall remain available for issuance under the Plan. Notwithstanding anything to the contrary in this Section 4(b), subject to the provisions of Section 11(a) relating to Capitalization Adjustments the aggregate maximum number of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options shall be four million three hundred and thirty-three thousand and eleven (4,333,011) shares of Common Stock plus the amount of any increase in the number of shares that may be available for issuance pursuant to Stock Awards pursuant to Section 4(a).
      (c) Source of Shares. The stock issuable under the Plan shall be shares of authorized but unissued or reacquired Common Stock, including shares repurchased by the Company on the open market.
5.Eligibility.
      (a) Eligibility for Specific Stock Awards. Incentive Stock Options may be granted only to Employees. Stock Awards other than Incentive Stock Options may be granted to Employees and Directors.
      (b) Ten Percent Stockholders. A Ten Percent Stockholder shall not be granted an Incentive Stock Option unless the exercise price of such Option is at least one hundred ten percent (110%) of the Fair Market Value of the Common Stock on the date of grant and the Option is not exercisable after the expiration of five (5) years from the date of grant.
      (c) Section 162(m) Limitation on Annual Grants. Subject to the provisions of Section 11(a) relating to Capitalization Adjustments, at such time as the Company may be subject to the applicable provisions of Section 162(m) of the Code, no Employee shall be eligible to be granted Stock Awards whose value is determined by reference to an increase over an exercise or strike price of at least one hundred percent (100%)

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of the Fair Market Value of the Common Stock on the date the Stock Award is granted covering more than five hundred thousand (500,000) shares of Common Stock during any calendar year.
6.Option Provisions.
      Each Option shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. All Options shall be separately designated Incentive Stock Options or Nonstatutory Stock Options at the time of grant, and, if certificates are issued, a separate certificate or certificates shall be issued for shares of Common Stock purchased on exercise of each type of Option. The provisions of separate Options need not be identical;provided, however, that each Option Agreement shall include (through incorporation of provisions hereof by reference in the Option or otherwise) the substance of each of the following provisions:
      (a) Term. The Board shall determine the term of an Option;provided, however, that subject to the provisions of Section 5(b) regarding Ten Percent Stockholders, no Incentive Stock Option shall be exercisable after the expiration of ten (10) years from the date of grant.
      (b) Exercise Price of an Incentive Stock Option. Subject to the provisions of Section 5(b) regarding Ten Percent Stockholders, the exercise price of each Incentive Stock Option shall be not less than one hundred percent (100%) of the Fair Market Value of the Common Stock subject to the Option on the date the Option is granted. Notwithstanding the foregoing, an Incentive Stock Option may be granted with an exercise price lower than that set forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution for another option in a manner consistent with the provisions of Section 424(a) of the Code.
      (c) Exercise Price of a Nonstatutory Stock Option. The exercise price of each Nonstatutory Stock Option shall be not less than one hundred percent (100%) of the Fair Market Value of the Common Stock subject to the Option on the date the Option is granted. Notwithstanding the foregoing, a Nonstatutory Stock Option may be granted with an exercise price lower than that set forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution for another option in a manner consistent with the provisions of Section 424(a) of the Code.
      (d) Consideration. The purchase price of Common Stock acquired pursuant to the exercise of an Option shall be paid, to the extent permitted by applicable law and as determined by the Board in its sole discretion, by any combination of the methods of payment set forth below. The Board shall have the authority to grant Options that do not permit all of the following methods of payment (or otherwise restrict the ability to use certain methods) and to grant Options that require the consent of the Company to utilize a particular method of payment. The methods of payment permitted by this Section 6(d) are:
      (i) by cash or check;
      (ii) pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board that, prior to the issuance of Common Stock, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to the Company from the sales proceeds;
      (iii) by delivery to the Company (either by actual delivery or attestation) of shares of Common Stock;
      (iv) by a “net exercise” arrangement pursuant to which the Company will reduce the number of shares of Common Stock issued upon exercise by the largest whole number of shares with a Fair Market Value that does not exceed the aggregate exercise price;provided, however, the Company shall accept a cash or other payment from the Participant to the extent of any remaining balance of the aggregate exercise price not satisfied by such holding back of whole shares;provided, however, shares of Common Stock will no longer be outstanding under an Option and will not be exercisable thereafter to the extent that (i) shares are used to pay the exercise price pursuant to the “net exercise,” (ii) shares are delivered to the Participant as a result of such exercise, and (iii) shares are withheld to satisfy tax withholding obligations; or

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      (v) in any other form of legal consideration that may be acceptable to the Board.
      (e) Transferability of Options. The Board may, in its sole discretion, impose such limitations on the transferability of Options as the Board shall determine. In the absence of such a determination by the Board to the contrary, the following restrictions on the transferability of Options shall apply:
      (i) Restrictions on Transfer. An Option shall not be transferable except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Optionholder only by the Optionholder.
      (ii) Domestic Relations Orders. Notwithstanding the foregoing, an Option may be transferred pursuant to a domestic relations order.
 ��    (iii) Beneficiary Designation. Notwithstanding the foregoing, the Optionholder may, by delivering written notice to the Company, in a form provided by or otherwise satisfactory to the Company, designate a third party who, in the event of the death of the Optionholder, shall thereafter be entitled to exercise the Option.
      (f) Vesting Generally. The total number of shares of Common Stock subject to an Option may vest and therefore become exercisable in periodic installments that may or may not be equal. The Option may be subject to such other terms and conditions on the time or times when it may or may not be exercised (which may be based on performance or other criteria) as the Board may deem appropriate. The vesting provisions of individual Options may vary. The provisions of this Section 6(f) are subject to any Option provisions governing the minimum number of shares of Common Stock as to which an Option may be exercised.
      (g) Termination of Continuous Service. In the event that an Optionholder’s Continuous Service terminates (other than upon the Optionholder’s death or Disability), the Optionholder may exercise his or her Option (to the extent that the Optionholder was entitled to exercise such Option as of the date of termination of Continuous Service) but only within such period of time ending on the earlier of (i) the date three (3) months following the termination of the Optionholder’s Continuous Service (or such longer or shorter period specified in the Option Agreement), or (ii) the expiration of the term of the Option as set forth in the Option Agreement. If, after termination of Continuous Service, the Optionholder does not exercise his or her Option within the time specified herein or in the Option Agreement (as applicable), the Option shall terminate.
      (h) Extension of Termination Date. An Optionholder’s Option Agreement may provide that if the exercise of the Option following the termination of the Optionholder’s Continuous Service (other than upon the Optionholder’s death or Disability or upon a Change in Control) would be prohibited at any time solely because the issuance of shares of Common Stock would violate the registration requirements under the Securities Act, then the Option shall terminate on the earlier of (i) the expiration of a period of three (3) months after the termination of the Optionholder’s Continuous Service during which the exercise of the Option would not be in violation of such registration requirements, or (ii) the expiration of the term of the Option as set forth in the Option Agreement.
      (i) Disability of Optionholder. In the event that an Optionholder’s Continuous Service terminates as a result of the Optionholder’s Disability, the Optionholder may exercise his or her Option (to the extent that the Optionholder was entitled to exercise such Option as of the date of termination of Continuous Service), but only within such period of time ending on the earlier of (i) the date twelve (12) months following such termination of Continuous Service (or such longer or shorter period specified in the Option Agreement), or (ii) the expiration of the term of the Option as set forth in the Option Agreement. If, after termination of Continuous Service, the Optionholder does not exercise his or her Option within the time specified herein or in the Option Agreement (as applicable), the Option shall terminate.

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      (j) Death of Optionholder. In the event that (i) an Optionholder’s Continuous Service terminates as a result of the Optionholder’s death, or (ii) the Optionholder dies within the period (if any) specified in the Option Agreement after the termination of the Optionholder’s Continuous Service for a reason other than death, then the Option may be exercised (to the extent the Optionholder was entitled to exercise such Option as of the date of death) by the Optionholder’s estate, by a person who acquired the right to exercise the Option by bequest or inheritance or by a person designated to exercise the option upon the Optionholder’s death, but only within the period ending on the earlier of (i) the date eighteen (18) months following the date of death (or such longer or shorter period specified in the Option Agreement), or (ii) the expiration of the term of such Option as set forth in the Option Agreement. If, after the Optionholder’s death, the Option is not exercised within the time specified herein or in the Option Agreement (as applicable), the Option shall terminate.
      (k) Early Exercise. The Option may include a provision whereby the Optionholder may elect at any time before the Optionholder’s Continuous Service terminates to exercise the Option as to any part or all of the shares of Common Stock subject to the Option prior to the full vesting of the Option. Any unvested shares of Common Stock so purchased may be subject to a repurchase option in favor of the Company or to any other restriction the Board determines to be appropriate. The Company shall not be required to exercise its repurchase option until at least six (6) months (or such longer or shorter period of time necessary to avoid a charge to earnings for financial accounting purposes) have elapsed following exercise of the Option unless the Board otherwise specifically provides in the Option.
7.Provisions of Stock Awards other than Options.
      (a) Stock Purchase Awards. Each Stock Purchase Award Agreement shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. At the Board’s election, shares of Common Stock may be (i) held in book entry form subject to the Company’s instructions until any restrictions relating to the Stock Purchase Award lapse; or (ii) evidenced by a certificate, which certificate shall be held in such form and manner as determined by the Board. The terms and conditions of Stock Purchase Award Agreements may change from time to time, and the terms and conditions of separate Stock Purchase Award Agreements need not be identical,provided, however, that each Stock Purchase Award Agreement shall include (through incorporation of the provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions:
      (i) Purchase Price. At the time of the grant of a Stock Purchase Award, the Board will determine the price to be paid by the Participant for each share subject to the Stock Purchase Award. To the extent required by applicable law, the price to be paid by the Participant for each share of the Stock Purchase Award will not be less than the par value of a share of Common Stock.
      (ii) Consideration. At the time of the grant of a Stock Purchase Award, the Board will determine the consideration permissible for the payment of the purchase price of the Stock Purchase Award. The purchase price of Common Stock acquired pursuant to the Stock Purchase Award shall be paid either: (i) in cash or by check at the time of purchase, (ii) by past services rendered to the Company, or (iii) in any other form of legal consideration that may be acceptable to the Board in its sole discretion and permissible under applicable law.
      (iii) Vesting. Shares of Common Stock acquired under a Stock Purchase Award may be subject to a share repurchase right or option in favor of the Company in accordance with a vesting schedule to be determined by the Board.
      (iv) Termination of Participant’s Continuous Service. In the event that a Participant’s Continuous Service terminates, the Company shall have the right, but not the obligation, to repurchase or otherwise reacquire, any or all of the shares of Common Stock held by the Participant that have not vested as of the date of termination under the terms of the Stock Purchase Award Agreement. At the Board’s election, the price paid for all shares of Common Stock so repurchased or reacquired by the Company may be at the lesser of: (i) the Fair Market Value on the relevant date, or (ii) the Participant’s original cost for such shares. The Company shall not be required to exercise its repurchase or reacquisition option until at

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least six (6) months (or such longer or shorter period of time necessary to avoid a charge to earnings for financial accounting purposes) have elapsed following the Participant’s purchase of the shares of stock acquired pursuant to the Stock Purchase Award unless otherwise determined by the Board or provided in the Stock Purchase Award Agreement.
      (v) Transferability. Rights to purchase or receive shares of Common Stock granted under a Stock Purchase Award shall be transferable by the Participant only upon such terms and conditions as are set forth in the Stock Purchase Award Agreement, as the Board shall determine in its sole discretion, and so long as Common Stock awarded under the Stock Purchase Award remains subject to the terms of the Stock Purchase Award Agreement.

      (b) Stock Bonus Awards. Each Stock Bonus Award Agreement shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. At the Board’s election, shares of Common Stock may be (i) held in book entry form subject to the Company’s instructions until any restrictions relating to the Stock Bonus Award lapse; or (ii) evidenced by a certificate, which certificate shall be held in such form and manner as determined by the Board. The terms and conditions of Stock Bonus Award Agreements may change from time to time, and the terms and conditions of separate Stock Bonus Award Agreements need not be identical,provided, however, that each Stock Bonus Award Agreement shall include (through incorporation of provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions:
      (i) Consideration. A Stock Bonus Award may be awarded in consideration for (i) past services actually rendered to the Company or an Affiliate, or (ii) any other form of legal consideration that may be acceptable to the Board in its sole discretion and permissible under applicable law.
      (ii) Vesting. Shares of Common Stock awarded under the Stock Bonus Award Agreement may be subject to forfeiture to the Company in accordance with a vesting schedule to be determined by the Board.
      (iii) Termination of Participant’s Continuous Service. In the event a Participant’s Continuous Service terminates, the Company may receive via a forfeiture condition, any or all of the shares of Common Stock held by the Participant which have not vested as of the date of termination of Continuous Service under the terms of the Stock Bonus Award Agreement.
      (iv) Transferability. Rights to acquire shares of Common Stock under the Stock Bonus Award Agreement shall be transferable by the Participant only upon such terms and conditions as are set forth in the Stock Bonus Award Agreement, as the Board shall determine in its sole discretion, so long as Common Stock awarded under the Stock Bonus Award Agreement remains subject to the terms of the Stock Bonus Award Agreement.
      (c) Stock Unit Awards. Each Stock Unit Award Agreement shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. The terms and conditions of Stock Unit Award Agreements may change from time to time, and the terms and conditions of separate Stock Unit Award Agreements need not be identical,provided, however, that each Stock Unit Award Agreement shall include (through incorporation of the provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions:
      (i) Consideration. At the time of grant of a Stock Unit Award, the Board will determine the consideration, if any, to be paid by the Participant upon delivery of each share of Common Stock subject to the Stock Unit Award. The consideration to be paid (if any) by the Participant for each share of Common Stock subject to a Stock Unit Award may be paid in any form of legal consideration that may be acceptable to the Board in its sole discretion and permissible under applicable law.
      (ii) Vesting. At the time of the grant of a Stock Unit Award, the Board may impose such restrictions or conditions to the vesting of the Stock Unit Award as it, in its sole discretion, deems appropriate.
      (iii) Payment. A Stock Unit Award may be settled by the delivery of shares of Common Stock, their cash equivalent, any combination thereof or in any other form of consideration, as determined by the Board and contained in the Stock Unit Award Agreement.

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      (iv) Additional Restrictions. At the time of the grant of a Stock Unit Award, the Board, as it deems appropriate, may impose such restrictions or conditions that delay the delivery of the shares of Common Stock (or their cash equivalent) subject to a Stock Unit Award after the vesting of such Stock Unit Award.
      (v) Dividend Equivalents. Dividend equivalents may be credited in respect of shares of Common Stock covered by a Stock Unit Award, as determined by the Board and contained in the Stock Unit Award Agreement. At the sole discretion of the Board, such dividend equivalents may be converted into additional shares of Common Stock covered by the Stock Unit Award in such manner as determined by the Board. Any additional shares covered by the Stock Unit Award credited by reason of such dividend equivalents will be subject to all the terms and conditions of the underlying Stock Unit Award Agreement to which they relate.
      (vi) Termination of Participant’s Continuous Service. Except as otherwise provided in the applicable Stock Unit Award Agreement, such portion of the Stock Unit Award that has not vested will be forfeited upon the Participant’s termination of Continuous Service.
      (d) Stock Appreciation Rights. Each Stock Appreciation Right Agreement shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. The terms and conditions of Stock Appreciation Right Agreements may change from time to time, and the terms and conditions of separate Stock Appreciation Right Agreements need not be identical;provided, however, that each Stock Appreciation Right Agreement shall include (through incorporation of the provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions:
      (i) Strike Price and Calculation of Appreciation. Each Stock Appreciation Right will be denominated in shares of Common Stock equivalents. The appreciation distribution payable on the exercise of a Stock Appreciation Right will be not greater than an amount equal to the excess of (i) the aggregate Fair Market Value (on the date of the exercise of the Stock Appreciation Right) of a number of shares of Common Stock equal to the number of share of Common Stock equivalents in which the Participant is vested under such Stock Appreciation Right, and with respect to which the Participant is exercising the Stock Appreciation Right on such date, over (ii) an amount (the strike price) that will be determined by the Board at the time of grant of the Stock Appreciation Right.
      (ii) Vesting. At the time of the grant of a Stock Appreciation Right, the Board may impose such restrictions or conditions to the vesting of such Stock Appreciation Right as it, in its sole discretion, deems appropriate.
      (iii) Exercise. To exercise any outstanding Stock Appreciation Right, the Participant must provide written notice of exercise to the Company in compliance with the provisions of the Stock Appreciation Right Agreement evidencing such Stock Appreciation Right.
      (iv) Payment. The appreciation distribution in respect to a Stock Appreciation Right may be paid in Common Stock, in cash, in any combination of the two or in any other form of consideration, as determined by the Board and contained in the Stock Appreciation Right Agreement evidencing such Stock Appreciation Right.
      (v) Termination of Continuous Service. In the event that a Participant’s Continuous Service terminates, the Participant may exercise his or her Stock Appreciation Right (to the extent that the Participant was entitled to exercise such Stock Appreciation Right as of the date of termination) but only within such period of time ending on the earlier of (i) the date three (3) months following the termination of the Participant’s Continuous Service (or such longer or shorter period specified in the Stock Appreciation Right Agreement), or (ii) the expiration of the term of the Stock Appreciation Right as set forth in the Stock Appreciation Right Agreement. If, after termination, the Participant does not exercise his or her Stock Appreciation Right within the time specified herein or in the Stock Appreciation Right Agreement (as applicable), the Stock Appreciation Right shall terminate.

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      (e) Other Stock Awards. Other forms of Stock Awards valued in whole or in part by reference to, or otherwise based on, Common Stock may be granted either alone or in addition to Stock Awards provided for under Section 6 and the preceding provisions of this Section 7. Subject to the provisions of the Plan, the Board shall have 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 Common Stock (or the cash equivalent thereof) to be granted pursuant to such Other Stock Awards and all other terms and conditions of such Other Stock Awards.
8.Covenants of the Company.
      (a) Availability of Shares. During the terms of the Stock Awards, the Company shall keep available at all times the number of shares of Common Stock required to satisfy such Stock Awards.
      (b) Securities Law Compliance. The Company shall seek to obtain from each regulatory commission or agency having jurisdiction over the Plan such authority as may be required to grant Stock Awards and to issue and sell shares of Common Stock upon exercise of the Stock Awards;provided, however, that this undertaking shall not require the Company to register under the Securities Act the Plan, any Stock Award or any Common Stock issued or issuable pursuant to any such Stock Award. If, after reasonable efforts, the Company is unable to obtain from any such regulatory commission or agency the authority that counsel for the Company deems necessary for the lawful issuance and sale of Common Stock under the Plan, the Company shall be relieved from any liability for failure to issue and sell Common Stock upon exercise of such Stock Awards unless and until such authority is obtained.
9.Use of Proceeds from Sales of Common Stock.
      Proceeds from the sale of shares of Common Stock pursuant to Stock Awards shall constitute general funds of the Company.
10.Miscellaneous.
      (a) Acceleration of Exercisability and Vesting. The Board shall have the power to accelerate the time at which a Stock Award may first be exercised or the time during which a Stock Award or any part thereof will vest in accordance with the Plan, notwithstanding the provisions in the Stock Award stating the time at which it may first be exercised or the time during which it will vest.
      (b) Stockholder Rights. No Participant shall be deemed to be the holder of, or to have any of the rights of a holder with respect to, any shares of Common Stock subject to such Stock Award unless and until such Participant has satisfied all requirements for exercise of the Stock Award pursuant to its terms.
      (c) No Employment or Other Service Rights. Nothing in the Plan, any Stock Award Agreement or other instrument executed thereunder or any Stock Award granted pursuant thereto shall confer upon any Participant any right to continue to serve the Company or an Affiliate in the capacity in effect at the time the Stock Award was granted or shall affect the right of the Company or an Affiliate to terminate (i) the employment of an Employee with or without notice and with or without cause, or (ii) the service of a Director pursuant to the Bylaws of the Company or an Affiliate, and any applicable provisions of the corporate law of the state in which the Company or the Affiliate is incorporated, as the case may be.
      (d) Incentive Stock Option $100,000 Limitation. To the extent that the aggregate Fair Market Value (determined at the time of grant) of Common Stock with respect to which Incentive Stock Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company and any Affiliates) exceeds one hundred thousand dollars ($100,000), the Options or portions thereof that exceed such limit (according to the order in effectwhich they were granted) shall be treated as Nonstatutory Stock Options, notwithstanding any contrary provision of the applicable Option Agreement(s).
      (e) Investment Assurances. The Company may require a Participant, as a condition of exercising or acquiring Common Stock under any Stock Award, (i) to give written assurances satisfactory to the Company as to the Participant’s knowledge and experience in financial and business matters and/or to employ a purchaser representative reasonably satisfactory to the Company who is knowledgeable and experienced in

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financial and business matters and that he or she is capable of evaluating, alone or together with the purchaser representative, the merits and risks of exercising the Stock Award; and (ii) to give written assurances satisfactory to the Company stating that the Participant is acquiring Common Stock subject to the Stock Award for the Participant’s own account and not with any present intention of selling or otherwise distributing the Common Stock. The foregoing requirements, and any assurances given pursuant to such requirements, shall be inoperative if (i) the issuance of the shares upon the exercise or acquisition of Common Stock under the Stock Award has been registered under a then currently effective registration statement under the Securities Act, or (ii) as to any particular requirement, a determination is made by counsel for the Company that such requirement need not be met in the circumstances under the then applicable securities laws. The Company may, upon advice of counsel to the Company, place legends on stock certificates issued under the Plan as such counsel deems necessary or appropriate in order to comply with applicable securities laws, including, but not limited to, legends restricting the transfer of the Common Stock.
      (f) Withholding Obligations. To the extent provided by the terms of a Stock Award Agreement, the Company may, in its sole discretion, satisfy any federal, state or local tax withholding obligation relating to a Stock Award by any of the following means (in addition to the Company’s right to withhold from any compensation paid to the Participant by the Company) or by a combination of such means: (i) causing the Participant to tender a cash payment; (ii) withholding shares of Common Stock from the shares of Common Stock issued or otherwise issuable to the Participant in connection with the Stock Award; or (iii) by such other method as may be set forth in the Stock Award Agreement.
      (g) Electronic Delivery. Any reference herein to a “written” agreement or document shall include any agreement or document delivered electronically or posted on the Company’s intranet.
      (h) Performance Stock Awards. A Stock Award may be granted, may vest, or may be exercised based upon service conditions, upon the attainment during a Performance Period of certain Performance Goals, or both. 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 shall be conclusively determined by the Board in its sole discretion. The maximum benefit to be received by any individual in any calendar year attributable to Stock Awards described in this Section 10(h) shall not exceed the value of five hundred thousand (500,000) shares of Common Stock.
11.Adjustments upon Changes in Common Stock; Corporate Transactions.
      (a) Capitalization Adjustments. If any change is made in, or other events occur with respect to, the Common Stock subject to the Plan or subject to any Stock Award after the effective date of the Plan set forth in Section 14 without the receipt of consideration by the Company (through merger, consolidation, reorganization, recapitalization, reincorporation, stock dividend, dividend in property other than cash, stock split, liquidating dividend, combination of shares, exchange of shares, change in corporate structure or other transaction not involving the receipt of consideration by the Company (each a“Capitalization Adjustment”)), the Plan shall be appropriately adjusted in the class(es) and maximum number of securities subject to the Plan pursuant to Sections 4(a) and 4(b), the maximum number of securities that may be awarded to any person pursuant to Sections 5(c) and 10(h), and the outstanding Stock Awards will be appropriately adjusted in the class(es) and number of securities and price per share of stock subject to such outstanding Stock Awards. The Board shall make such adjustments, and its determination shall be final, binding and conclusive. (Notwithstanding the foregoing, the conversion of any convertible securities of the Company shall not be treated as a transaction “without receipt of consideration” by the Company.)
      (b) Dissolution or Liquidation. In the event of a dissolution or liquidation of the Company, all outstanding Stock Awards (other than Stock Awards consisting of vested and outstanding shares of Common Stock not subject to the Company’s right of repurchase) shall terminate immediately prior to the completion of such dissolution or liquidation, and the shares of Common Stock subject to the Company’s repurchase option may be repurchased by the Company notwithstanding the fact that the holder of such Stock Award is providing Continuous Service,provided, however, that the Board may, in its sole discretion, cause some or all Stock Awards to become fully vested, exercisable and/or no longer subject to repurchase or forfeiture (to the

A-15


extent such Stock Awards have not previously expired or terminated) before the dissolution or liquidation is completed but contingent on its completion.
      (c) Corporate Transaction. The following provisions shall apply to Stock Awards in the event of a Corporate Transaction unless otherwise provided in a written agreement between the Company or any Affiliate and the holder of the Stock Award:
      (i) Stock Awards May Be Assumed. In the event of a Corporate Transaction, any surviving corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume or continue any or all Stock Awards outstanding under the Plan or may substitute similar stock awards for Stock Awards outstanding under the Plan (including but not limited to, awards to acquire the same consideration paid to the stockholders of the Company pursuant to the Corporate Transaction), and any reacquisition or repurchase rights held by the Company in respect of Common Stock issued pursuant to Stock Awards may be assigned by the Company to the successor of the Company (or the successor’s parent company, if any), in connection with such Corporate Transaction. A surviving corporation or acquiring corporation may choose to assume or continue only a portion of a Stock Award or substitute a similar stock award for only a portion of a Stock Award. The terms of any assumption, continuation or substitution shall be set by the Board in accordance with the provisions of Section 3.
      (ii) Stock Awards Held by Current Participants. In the event of a Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue Stock Awards outstanding under the Plan or substitute similar stock awards for such outstanding Stock Awards, then with respect to Stock Awards that have not been assumed, continued or substituted and that are held by Participants whose Continuous Service has not terminated prior to the effective time of the Corporate Transaction (referred to as the“Current Participants”), the vesting of such Stock Awards (and, if applicable, the time at which such Stock Awards may be exercised) shall (contingent upon the effectiveness of the Corporate Transaction) be accelerated in full to a date prior to the effective time of such Corporate Transaction as the Board shall determine (or, if the Board shall not determine such a date, to the date that is five (5) days prior to the effective time of the Corporate Transaction), and such Stock Awards shall terminate if not exercised (if applicable) at or prior to the effective time of the Corporate Transaction, and any reacquisition or repurchase rights held by the Company with respect to such Stock Awards shall lapse (contingent upon the effectiveness of the Corporate Transaction).
      (iii) Stock Awards Held by Former Participants. In the event of a Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue Stock Awards outstanding under the Plan or substitute similar stock awards for such outstanding Stock Awards, then with respect to Stock Awards that have not been assumed, continued or substituted and that are held by persons other than Current Participants, the vesting of such Stock Awards (and, if applicable, the time at which such Stock Award may be exercised) shall not be accelerated and such Stock Awards (other than a Stock Award consisting of vested and outstanding shares of Common Stock not subject to the Company’s right of repurchase) shall terminate if not exercised (if applicable) prior to the effective time of the Corporate Transaction;provided, however, 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.
      (iv) Payment for Stock Awards in Lieu of Exercise. Notwithstanding the foregoing, in the event a Stock Award will terminate if not exercised prior to the effective time of a Corporate Transaction, the Board may provide, in its sole discretion, that the holder of such Stock Award may not exercise such Stock Award but will receive a payment, in such form as may be determined by the Board, equal in value to the excess, if any, of (i) the value of the property the holder of the Stock Award would have received upon the exercise of the Stock Award, over (ii) any exercise price payable by such holder in connection with such exercise.
      (d) Change in Control. A Stock Award may be subject to additional acceleration of vesting and exercisability upon or after a Change in Control as may be provided in the Stock Award Agreement for such

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Stock Award or as may be provided in any other written agreement between the Company or any Affiliate and the Participant, but in the absence of such provision, no such acceleration shall occur.
12.Amendment of the Plan and Stock Awards.
      (a) Amendment of Plan. Subject to the limitations, if any, of applicable law, the Board at any time, and from time to time, andmay amend the Plan. However, except as provided in Section 11(a) relating to Section 311Capitalization Adjustments, no amendment shall be effective unless approved by the stockholders of the California General Corporation Law.Company to the extent stockholder approval is necessary to satisfy applicable law.
      (b) Stockholder Approval. The CommitteeBoard, in its sole discretion, may submit any other amendment to the Plan for stockholder approval, including, but not limited to, amendments to the Plan intended to satisfy the requirements of Section 162(m) of the Code and the regulations thereunder regarding the exclusion of performance-based compensation from the limit on corporate deductibility of compensation paid to Covered Employees.
      (c) Contemplated Amendments. It is expressly contemplated that the Board may amend the Plan in any respect the Board deems necessary or advisable to provide eligible Employees with the maximum benefits provided or to be provided under the provisions of the Code and the regulations promulgated thereunder relating to Incentive Stock Options and/or to bring the Plan and/or Incentive Stock Options granted under it into compliance therewith.
      (d) No Impairment of Rights. Rights under any Stock Award granted before amendment of the Plan shall havenot be impaired by any amendment of the Plan unless (i) the Company requests the consent of the affected Participant, and (ii) such Participant consents in writing.
      (e) Amendment of Stock Awards. The Board, at any time and from time to time, may amend the terms of any one or more Stock Awards, including, but not limited to, amendments to provide terms more favorable than previously provided in the Stock Award Agreement, subject to any specified limits in the Plan that are not subject to Board discretion;provided, however, that the rights under any Stock Award shall not be impaired by any such amendment unless (i) the Company requests the consent of the affected Participant, and (ii) such Participant consents in writing.
      (f) Prior Stockholder Approval of Option Repricings. Notwithstanding anything to the contrary in the Plan, the Board shall not, without obtaining the prior approval of the stockholders of the Company, effect (i) the reduction of the exercise price of any outstanding Option under the Plan; (ii) the cancellation or acceptance of any outstanding Option under the Plan and the grant in substitution or exchange therefor of (a) a new Option under the Plan or another equity plan of the Company covering the same or a different number of shares of Common Stock, (b) a Stock Purchase Award, (c) a Stock Bonus Award, (d) a Stock Appreciation Right, (e) a Stock Unit Award, (f) an Other Stock Award, (g) cash, and/or (h) other valuable consideration (as determined by the Board, in its sole discretion); or (iii) any other action that is treated as a repricing under generally accepted accounting principles.
13.Termination or Suspension of the Plan.
      (a) Plan Term. The Board may suspend or terminate the Plan at any time. Unless sooner terminated, the Plan shall terminate on the day before the tenth (10th) anniversary of the date the Plan is adopted by the Board or approved by the stockholders of the Company, whichever is earlier. No Stock Awards may be granted under the Plan while the Plan is suspended or after it is terminated.
      (b) No Impairment of Rights. Suspension or termination of the Plan shall not impair rights and obligations under any Stock Award granted while the Plan is in effect except with the written consent of the affected Participant.

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14.Effective Date of Plan.
      This Plan (as an amendment and restatement of the Prior Plan) shall become effective on the date that the Plan is adopted by the Board, but no Stock Award shall be exercised (or, in the case of a Stock Purchase Award, Stock Bonus Award, Stock Unit Award, or Other Stock Award shall be granted) unless and until the Plan has been approved by the stockholders of the Company, which approval shall be within twelve (12) months before or after the date the Plan is adopted by the Board.
15.Choice of Law.
      The law of the State of Delaware shall govern all questions concerning the construction, validity and interpretation of this Plan, without regard to such state’s conflict of laws rules.

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DETACH HEREZMOD62

PROXY

MOLECULAR DEVICES CORPORATION

PROXY SOLICITED BY THE BOARD OF DIRECTORS
FOR THE ANNUAL MEETING OF STOCKHOLDERS
TO BE HELD ON MAY 26, 2005

     The undersigned hereby appoints Joseph D. Keegan, Ph.D., and Timothy A. Harkness, and each of them, as attorneys and proxies of the undersigned, with full power of substitution, to vote all shares of stock of Molecular Devices Corporation which the undersigned may be entitled to vote at the Annual Meeting of Stockholders of Molecular Devices Corporation to be held at the Company’s corporate headquarters, located at 1311 Orleans Drive, Sunnyvale, California 94089, on Thursday, May 26, 2005 at 10:30 a.m., local time, and authority to carry outat any and all postponements, continuations and adjournments thereof, with all powers that the undersigned would possess if personally present, upon and in respect of the following responsibilities: 1. To recommend annuallymatters and in accordance with the following instructions, with discretionary authority as to the full Board the firm of certified public accountants to be employed by the Company as its independent auditors for the ensuing year. 2. To review the engagement of the independent auditors, including the scope, extent and procedures of the audit and the compensation to be paid therefore,any and all other matters that may properly come before the Committee deems appropriate. 3. meeting.

UNLESS A CONTRARY DIRECTION IS INDICATED, THIS PROXY WILL BE VOTED FOR ALL NOMINEES LISTED IN PROPOSAL 1 AND FOR PROPOSALS 2 AND 3, AS MORE SPECIFICALLY DESCRIBED IN THE PROXY STATEMENT. IF SPECIFIC INSTRUCTIONS ARE INDICATED, THIS PROXY WILL BE VOTED IN ACCORDANCE THEREWITH.

   SEE REVERSE    
SIDE
CONTINUED AND TO BE SIGNED ON REVERSE SIDE   SEE REVERSE   
SIDE


MOLECULAR DEVICES CORPORATION

C/O EQUISERVE TRUST COMPANY, N.A.
P.O. BOX 8694
EDISON, NJ 08818-8694

DETACH HERE IF YOU ARE RETURNING YOUR PROXY CARD BY MAILZMOD61          
xPlease mark
votes as in
this example.
#MOD

THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE NOMINEES FOR DIRECTOR LISTED BELOW. THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSALS 2 AND 3 BELOW.

Proposal 1.To elect directors to serve for the ensuing year and until their successors are elected.
Nominees:
Joseph D. Keegan, Ph.D., Moshe H. Alafi, David L. Anderson,
A. Blaine Bowman, Paul Goddard, Ph.D., André F. Marion,
Harden M. McConnell, Ph.D., and J. Allan Waitz, Ph.D.
FOR ALL NOMINEES LISTED
ABOVE (EXCEPT AS MARKED TO
THE CONTRARY BELOW)
ooWITHHOLD AUTHORITY TO VOTE
FOR ALL NOMINEES

LISTED ABOVE

____________________________________________
To have familiarity, throughwithhold authority to vote for any nominee(s), write
such nominee(s)’ name(s) above.

FORAGAINSTABSTAIN
Proposal 2.To approve the Molecular Devices Corporation 2005 Equity Incentive Plan.ooo
Proposal 3.To ratify the selection of Ernst & Young LLP as Molecular Devices’ independent registered public accounting firm for the fiscal year ending December 31, 2005.ooo


Please sign exactly as your name appears hereon. If the individual efforts of its members, with the accounting and reporting principles and practices applied by the Company in preparing its financial statements, including, without limitation, the policies for recognition of revenues in financial statements. 4. To review with management and the independent auditors, upon completion of their audit, financial results for the year, as reportedstock is registered in the Company's financial statements,names of two or other disclosures. 5. To assistmore persons, each should sign. Executors, administrators, trustees, guardians and interact with the independent auditorsattorneys-in-fact should add their titles. If signer is a corporation, please give full corporate name and have a duly authorized officer sign, stating title. If signer is a partnership, please sign in order that they may carry out their dutiespartnership name by authorized person.

Please vote, date and promptly return this proxy in the most efficient and cost effective manner. 6. To evaluate the cooperation received by the independent auditors during their audit examination, including their access to all requested records, data and information, and elicit the comments of management regarding the responsiveness of the independent auditors to the Company's needs. 7. To review the Company's balance sheet, profit and loss statement and statements of cash flows and stockholders' equity for each interim period, and any changes in accounting policy that have occurred during the interim period. 8. To review and approve all professional services provided to the Company by its independent auditors and consider the possible effect of such services on the independence of such auditors. 9. To consult with the independent auditors and discuss with Company management the scope and quality of internal accounting and financial reporting controls in effect. 10. To investigate, review and report to the Board the propriety and ethical implications of any transactions, as reported or disclosed to the Committee by the independent auditors, employees, officers, members of the Board or otherwise, between (a) the Company and (b) any employee, officer or member of the Board of the Company, or any affiliates of the foregoing. 11. To perform such other functions and have such power as may be necessary or convenientenclosed return envelope which is postage prepaid if mailed in the efficient and lawful discharge of the foregoing. MEETINGS: The Committee will hold at least one regular meeting per year and additional meetings as the Chairman or Committee deem appropriate. The President and Chief Executive Officer, Vice President and Chief Financial Officer may attend any meeting of the Committee, except for portions of the meetings where his, her or their presence would be inappropriate, as determined by the Committee Chairman. MINUTES AND REPORTS: Minutes of each meeting shall be kept and distributed to each member of the Committee, members of the Board who are not members of the Committee and the Secretary of the Company. The Chairman of the Committee shall report to the Board from time to time, or whenever so requested by the Board.

United States.



Signature: ___________________________________  Date: ______________    Signature: ___________________________________   Date: ______________