Document:

<PAGE>

                                                                    EXHIBIT 10.1

                               FIRST AMENDMENT TO

                           STOCK RESTRICTION AGREEMENT

      This First Amendment (the "Amendment") to the Stock Restriction Agreement
(the "Agreement") dated as of April 17, 1998 by and among Charles River
Associates Incorporated, a Massachusetts corporation (the "Company"), and the
persons whose names and addresses appear on Schedule A thereto (including
persons made a party thereto through one or more accession agreements), is made
as of March 27, 2003 by the Company and the Pre-Offering Stockholders who have
executed this Amendment.

      WHEREAS, certain parties to the Agreement wish to modify the provisions of
the Agreement relating to restrictions on the Transfer of Pre-Offering Stock and
other matters;

      WHEREAS, the parties to this Amendment hold the requisite number of shares
of Pre-Offering Stock to effectuate this Amendment to the Agreement;

      NOW, THEREFORE, in consideration of the premises and mutual promises
contained herein, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto hereby agree as
follows:

      1. General. Capitalized terms used but not defined in this Amendment shall
have the meanings given to them in the Agreement.

      2. Definitions. Section 1 of the Agreement is hereby amended to add the
following paragraph immediately after the first paragraph of Section 1:

      "Additional Shares" shall have the meaning set forth in Section 9(i).

      3. Revisions to Restrictions on Transfer. Section 9 of the Agreement is
hereby deleted in its entirety and replaced by the following:

      "9. Restrictions on Transfer. During the term of this Agreement, no
Pre-Offering Stockholder may Transfer any Pre-Offering Stock except as follows:

            (a) During the Initial Restriction Period, no Pre-Offering
Stockholder shall Transfer any shares of Pre-Offering Stock, except that any
Pre-Offering Stockholder may Transfer up to 15% of such Pre-Offering
Stockholder's Pre-Offering Stock pursuant to one or more registration statements
declared effective by the Commission under the Securities Act. Nothing in this
Agreement shall be construed to entitle any Pre-Offering Stockholder to include
any shares of Common Stock in any such registration statement.

            (b) After the Initial Restriction Period, each Pre-Offering
Stockholder shall be entitled to Transfer shares of such Pre-Offering
Stockholder's Pre-Offering Stock until such Pre- Offering Stockholder's
remaining holdings of Pre-Offering Stock shall equal the First Unrestricted
Stock Limit.
<PAGE>
            (c) In the period commencing immediately after the sixth anniversary
of the Effective Date and ending on the seventh anniversary of the Effective
Date, each Pre-Offering Stockholder shall be entitled to Transfer shares of such
Pre-Offering Stockholder's Pre-Offering Stock until such Pre-Offering
Stockholder's remaining holdings of Pre-Offering Stock shall equal the Second
Unrestricted Stock Limit.

            (d) After the seventh anniversary of the Effective Date, each
Pre-Offering Stockholder shall be entitled to Transfer an amount of Pre-Offering
Stock equal to the greater of (i) two-thirds of the Pre-Offering Stock held by
such Pre-Offering Stockholder immediately after the seventh anniversary of the
Effective Date and (ii) twenty percent (20%) of the Pre-Offering Stock held by
such Pre-Offering Stockholder immediately before the Effective Date.

            (e) After the ninth anniversary of the Effective Date, each
Pre-Offering Stockholder shall be entitled, subject to the terms of this
Agreement, to Transfer all of his or her remaining shares of Pre-Offering Stock.

            (f) Notwithstanding any other provision of this Section 9, a
Pre-Offering Stockholder shall not be entitled to Transfer any shares of such
Pre-Offering Stockholder's Pre- Offering Stock during such Pre-Offering
Stockholder's Separation Period and for 30 days thereafter if such Transfer
would cause such Pre-Offering Stockholder's remaining holdings of Pre-Offering
Stock to be less than the relevant Purchase Amount (as defined below).

            (g) In the event of a purported Transfer of shares of Pre-Offering
Stock by a Pre- Offering Stockholder (or Pre-Offering Stockholder's legal
representative) (a "Defaulting Stockholder") in violation of this Section 9 (a
"Prohibited Transfer"), such Prohibited Transfer shall be null and void, such
Prohibited Transfer shall not be recognized on the books and records of the
Company, and the Defaulting Stockholder shall retain the right to vote and
receive distributions.

            (h) In the event of a Prohibited Transfer, the Company may, in its
sole discretion, repurchase all of the Pre-Offering Stock held by the Defaulting
Stockholder by delivering to such Defaulting Stockholder a Repurchase Notice and
paying the Purchase Price (as hereinafter defined) in accordance with Sections
10 and 11 hereof.

            (i) In addition to the foregoing, no Pre-Offering Stockholder shall
transfer any Additional Shares (as hereinafter defined) until after the sixth
anniversary of the Effective Date. "Additional Shares" shall mean, with respect
to any Pre-Offering Stockholder, all shares of Common Stock (other than
Pre-Offering Stock) held by the Pre-Offering Stockholder on February 28, 2003
and all shares of Common Stock acquired by the Pre-Offering Stockholder after
that date and on or before the sixth anniversary of the Effective Date, whether
by gift, grant, purchase, exercise of stock options or otherwise; provided,
however, that "Additional Shares" shall not include any shares of Common Stock
purchased by the Pre-Offering Stockholder on the open market."

      4. Public Offering Lock-up Agreement. Section 15(b) of the Agreement is
hereby amended to add the following at the end:

                                     - 2 -
<PAGE>
            "In addition, each Pre-Offering Stockholder hereby agrees that,
notwithstanding any other provision of this Agreement permitting the Transfer of
any Pre-Offering Stock (other than Section 16), if the Company shall on any one
or more occasions before the ninth anniversary of the Effective Date afford the
Pre-Offering Stockholder the opportunity to sell any shares of Pre-Offering
Stock held by such Pre-Offering Stockholder in a public offering registered by
the Company under the Securities Act, then for a period of six months after the
closing date of such public offering such Pre-Offering Stockholder shall not,
without the prior written consent of the Company, Transfer any shares of
Pre-Offering Stock (nor, if such closing date shall occur on or before the sixth
anniversary of the Effective Date, any Additional Shares)."

      5. Stock Options. Section 21 of the Agreement is hereby deleted in its
entirety and replaced by the following:

      "21. Stock Options. Shares of Common Stock acquired by a Pre-Offering
Stockholder upon the exercise of stock options shall, to the extent such shares
constitute Additional Shares, be subject to the restrictions imposed by this
Agreement on Additional Shares. Shares of Common Stock acquired by a
Pre-Offering Stockholder upon the exercise of stock options shall not otherwise
be subject to the restrictions on Pre-Offering Stock imposed by this Agreement
unless the Board of Directors shall in its sole discretion determine otherwise.
The Board of Directors shall not be required to make uniform or consistent
determinations regarding the imposition of restrictions on any shares of Common
Stock so acquired."

6. Effectiveness of this Amendment. This Amendment shall become effective as to
all Pre-Offering Stockholders when signed by parties to the Agreement holding
the minimum number of shares of Common Stock necessary to effectuate this
Amendment; provided, however, that the provisions of Section 9(i) of the
Agreement as amended by this Amendment shall not become effective until signed
by the Pre-Offering Stockholders listed on Exhibit A hereto. Any Pre-Offering
Stockholder who became a party to the Agreement through an accession agreement
shall continue to be bound by any additional terms set forth therein.

      7. Scope of Amendment. As amended by this Amendment, the Agreement shall
continue in full force and effect in accordance with its terms.

      8. Governing Law. This Amendment shall be governed by, and construed and
enforced in accordance with, the laws of The Commonwealth of Massachusetts
without regard to its principles of conflicts of laws.

      9. Counterparts. This Amendment may be executed in any number of
counterparts, each of which shall be an original, but all of which shall
together constitute one agreement.

                [Remainder of page is intentionally left blank.]

                                     - 3 -
<PAGE>
      IN WITNESS WHEREOF, the parties hereto have executed this Amendment under
seal as of the date first written above.

                                        CHARLES RIVER ASSOCIATES INCORPORATED

                                        By: /s/ James C. Burrows
                                            ------------------------------------
                                            James C. Burrows, President

                                        PRE-OFFERING STOCKHOLDERS:

                                        /s/ Jagdish C. Agarwal
                                        ----------------------------------------
                                        Jagdish C. Agarwal

                                        /s/ Gregory K. Bell
                                        ----------------------------------------
                                        Gregory K. Bell

                                        The Besen Family Trust u/i/d March 30,
                                        1998

                                        By: /s/ Marlene Besen
                                            ------------------------------------
                                            Marlene Besen, Trustee

                                        /s/ Stanley M. Besen
                                        ----------------------------------------
                                        Stanley M. Besen

                                        /s/ Douglas R. Bohi
                                        ----------------------------------------
                                        Douglas R. Bohi

                                        /s/ Daniel Brand
                                        ----------------------------------------
                                        Daniel Brand

                                        /s/ Steven R. Brenner
                                        ----------------------------------------
                                        Steven R. Brenner

                                        /s/ William B. Burnett
                                        ----------------------------------------
                                        William B. Burnett

                                     - 4 -
<PAGE>
                                        /s/ James C. Burrows
                                        ----------------------------------------
                                        James C. Burrows

                                        The James C. Burrows Qualified Annuity
                                        Trust - 1998

                                        By: /s/ Kenneth L. Grinnell
                                            ------------------------------------
                                            Kenneth L. Grinnell, Trustee

                                        Eads Family, LLC

                                        By: /s/ George C. Eads
                                            ------------------------------------
                                            George C. Eads, Managing Member

                                        /s/ Abigail S. Fisher
                                        ----------------------------------------
                                        Abigail S. Fisher

                                        The Abigail S. Fisher GST Trust

                                        By: /s/ Abigail S. Fisher
                                            ------------------------------------
                                            Abigail S. Fisher, Trustee

                                        /s/ Abraham S. Fisher
                                        ----------------------------------------
                                        Abraham S. Fisher

                                        The Abraham S. Fisher GST Trust

                                        By: /s/ Abraham S. Fisher
                                            ------------------------------------
                                            Abraham S. Fisher, Trustee

                                        /s/ Franklin M. Fisher
                                        ----------------------------------------
                                        Franklin M. Fisher

                                        The Salop Irrevocable GST - Exempt Trust
                                        1998

                                        By: /s/ Judith R. Gelman
                                            ------------------------------------
                                            Judith R. Gelman, Trustee

                                     - 5 -
<PAGE>
                                        The Salop Irrevocable GST - Taxable
                                        Trust 1998

                                        By: /s/ Judith R. Gelman
                                            ------------------------------------
                                            Judith R. Gelman, Trustee

                                        /s/ Joen E. Greenwood
                                        ----------------------------------------
                                        Joen E. Greenwood

                                        /s/ William R. Hughes
                                        ----------------------------------------
                                        William R. Hughes

                                        The William R. Hughes Irrevocable Trust
                                        1998

                                        By: /s/ Mary F. Hughes
                                            ------------------------------------
                                            Mary F. Hughes, Trustee

                                        /s/ Stephen H. Kalos
                                        ----------------------------------------
                                        Stephen H. Kalos

                                        /s/ Firoze E. Katrak
                                        ----------------------------------------
                                        Firoze E. Katrak

                                        /s/ Carl Kaysen
                                        ----------------------------------------
                                        Carl Kaysen

                                        /s/ Michael A. Kemp
                                        ----------------------------------------
                                        Michael A. Kemp

                                        Robert J. Larner and Anne M. Larner,
                                        joint tenants with right of survivorship

                                        By: /s/ Robert J. Larner
                                            ------------------------------------
                                            Robert J. Larner

                                        By: /s/ Anne M. Larner
                                            ------------------------------------
                                            Anne M. Larner

                                     - 6 -
<PAGE>
                                        /s/ Arnold J. Lowenstein
                                        ----------------------------------------
                                        Arnold J. Lowenstein

                                        /s/ C. Christopher Maxwell
                                        ----------------------------------------
                                        C. Christopher Maxwell

                                        /s/ Paul R. Milgrom
                                        ----------------------------------------
                                        Paul R. Milgrom

                                        /s/ Bridger M. Mitchell
                                        ----------------------------------------
                                        Bridger M. Mitchell

                                        /s/ W. David Montgomery
                                        ----------------------------------------
                                        W. David Montgomery

                                        /s/ Rowland T. Moriarty
                                        ----------------------------------------
                                        Rowland T. Moriarty

                                        The Rowland T. Moriarty Qualified
                                        Annuity Trust 1998

                                        By: /s/ Jenny Fitz Moriarty
                                            ------------------------------------
                                            Jenny Fitz Moriarty, Trustee

                                        /s/ Laurel E. Morrison
                                        ----------------------------------------
                                        Laurel E. Morrison

                                        /s/ Monica G. Noether
                                        ----------------------------------------
                                        Monica G. Noether

                                        /s/ Thomas R. Overstreet
                                        ----------------------------------------
                                        Thomas R. Overstreet

                                        /s/ John E. Parsons
                                        ----------------------------------------
                                        John E. Parsons

                                     - 7 -
<PAGE>
                                        /s/ Raju Patel
                                        ----------------------------------------
                                        Raju Patel

                                        /s/ Gary L. Roberts
                                        ----------------------------------------
                                        Gary L. Roberts

                                        Ruback Children's Family Trust

                                        By: /s/ Elaine M. Ruback
                                            ------------------------------------
                                            Elaine M. Ruback, as Trustee

                                        /s/ Richard S. Ruback
                                        ----------------------------------------
                                        Richard S. Ruback

                                        /s/ Steven C. Salop
                                        ----------------------------------------
                                        Steven C. Salop

                                        /s/ Robert M. Spann
                                        ----------------------------------------
                                        Robert M. Spann

                                        /s/ Alan R. Willens
                                        ----------------------------------------
                                        Alan R. Willens

                                        /s/ John R. Woodbury
                                        ----------------------------------------
                                        John R. Woodbury

                                        /s/ Naomi L. Zikmund-Fisher
                                        ----------------------------------------
                                        Naomi L. Zikmund-Fisher

                                        The Naomi L. Fisher GST Trust

                                        By: /s/ Naomi L. Zikmund-Fisher
                                            ------------------------------------
                                            Naomi L. Zikmund-Fisher, Trustee

                                     - 8 -
<PAGE>
                                                                       Exhibit A

Jagdish C. Agarwal
Gregory K. Bell
The Besen Family Trust,
   u/i/d March 30, 1998
Stanley M. Besen
Douglas R. Bohi
Daniel Brand
Steven R. Brenner
William B. Burnett
James C. Burrows
The James C. Burrows Qualified
   Annuity Trust - 1998
Eads Family, LLC
Abigail S. Fisher
The Abigail S. Fisher GST Trust
Abraham S. Fisher
The Abraham S. Fisher GST Trust
Franklin M. Fisher
The Salop Irrevocable GST
   - Exempt Trust 1998
The Salop Irrevocable GST
   - Taxable Trust 1998
Joen E. Greenwood
William R. Hughes
The William R. Hughes Irrevocable
   Trust 1998
Stephen H. Kalos
Firoze E. Katrak
Carl Kaysen
Michael A. Kemp
Robert J. Larner and Anne M. Larner,
   joint tenants with right of survivorship
Arnold J. Lowenstein
C. Christopher Maxwell
Paul R. Milgrom
Bridger M. Mitchell
W. David Montgomery
Rowland T. Moriarty
The Rowland T. Moriarty Qualified
   Annuity Trust 1998
Laurel E. Morrison
Monica G. Noether
Thomas R. Overstreet
John E. Parsons
Raju Patel
Gary L. Roberts
Ruback Children's Family Trust
Richard S. Ruback
Steven C. Salop
Robert M. Spann
Alan R. Willens
John R. Woodbury
Naomi L. Zikmund-Fisher
The Naomi L. Fisher GST Trust<PAGE>

                                                                   EXHIBIT 10.01

                              EMPLOYMENT AGREEMENT

         This Employment Agreement (the "Agreement") is made and entered into in
Chelmsford, Massachusetts by and between Brooks-PRI Automation, Inc., a Delaware
corporation (the "Company") and Robert W. Woodbury, Jr. ("Executive"), as of
February 26, 2003.

                                    RECITALS

         1.       The Company desires to employ Executive as Senior Vice
President and Chief Financial Officer of the Company upon the terms and
conditions set forth herein.

         2.       In consideration of the employment to be provided hereby and
the amounts to be paid as provided herein, Executive desires to be employed by
the Company and to agree with the Company as further provided herein.

         3.       In consideration of the employment to be provided hereby and
the amounts to be paid as provided herein, the Indemnification Agreement
attached hereto as Exhibit A, and the Change of Control Agreement attached
hereto as Exhibit B, the Executive has entered into the Executive
Non-Competition and Proprietary Information Agreement attached hereto as Exhibit
C.

         For and in consideration of the mutual promises, terms, provisions and
conditions contained in this Agreement, the parties hereby agree as follows:

1.       Duties. Beginning on February 26, 2003 (the "Effective Date"), the
Company shall employ Executive on an at will basis as Senior Vice President and
Chief Financial Officer of the Company (the actual period of Executive's
employment with the Company is referred to herein as the "Employment Term").
Executive shall report to the Company's President. Executive shall have such
reasonable and appropriate duties as may from time to time be assigned by the
President, which duties shall include, without limitation, responsibility for
internal accounting and control functions. Executive shall perform the duties of
such office as are provided for in the bylaws of the Company subject to the
general supervision and direction of the President and the Company's board of
directors (the "Board of Directors").

2.       Performance. During the Employment Term, Executive shall use his
business judgment, skill and knowledge for the advancement of the Company's
interests and to discharge his duties and responsibilities hereunder. Executive
shall perform and discharge his duties and responsibilities hereunder
faithfully, diligently and to the best of his ability. Executive shall devote
substantially all of his working time and efforts to the business and affairs of
the Company.

3.       Compensation and Benefits.

         3.1.     Base Salary. During the Employment Term, as consideration for
Executive's performance hereunder, the Company agrees to pay Executive a base
salary of $270,000 per year

<PAGE>

(the "Base Salary"), payable in accordance with the normal payroll practices of
the Company for its executives, and subject to federal and state tax
withholding. The Base Salary shall be reviewed annually by the compensation
committee of the Board of Directors (the "Compensation Committee") and adjusted
as determined by the Compensation Committee (the Base Salary as adjusted from
time to time shall be referred to as the "Current Base Salary").

         3.2.     Annual Management Bonus. During the Employment Term, Executive
shall be eligible to receive cash bonuses each year from the Company determined
by the President and the Compensation Committee (the "Annual Management Bonus").
The Annual Management Bonus shall be payable based upon achievement of the
Company's operating profit objectives to be agreed upon by Executive, the
President and COO and approved by the Compensation Committee. The Annual
Management Bonus may range from 0% to 150% of 70% of Current Base Salary and
shall be reviewed at least annually by the Compensation Committee. Any such
Annual Management Bonuses paid to Executive shall be in addition to the Current
Base Salary.

         3.3.     Option Grants. Subject to the approval of the Compensation
Committee, the Company will grant Executive an option to purchase 85,000 shares
of Company common stock (the "Common Stock"), effective as of the Effective Date
(the "Grant"). The Grant shall be exercisable at a price equal to the closing
price of the Common Stock on the Nasdaq National Market on the date the Grant is
approved by the Compensation Committee. The Grant shall be subject to the terms
and conditions set forth in the governing option agreement, provided that 25% of
the shares that are subject to the Grant shall vest on the one year anniversary
of the grant date. The remaining shares subject to the Grant shall vest at a
rate of 6.25% on the last day of each three month period following the first
year anniversary date of the grant, subject to the terms and conditions
contained herein. For example, if the Executive had become employed on February
13, 2003 and remains employed through May 30, 2004, he will have vested in a
total of 31.25% of the shares under the Grant; 25% of the shares will have
vested on February 13, 2004, and 6.25% will have vested on May 13, 2004. In
addition, the Company shall perform a formal review of your Long Term Incentive
compensation no later than the last day of the sixth month following the
Effective Date to evaluate your performance and determine whether or not an
adjustment is appropriate.

         3.4.     Benefits. During the Employment Term, Executive shall be
eligible for participation in and shall receive all medical benefits and
benefits available under the Brooks-PRI Automation, Inc. 401(k) Plan, the
Company's welfare benefit plans, practices, policies and programs (including
disability, salary continuance, group life, accidental death and travel accident
insurance plans and programs) normally available to other senior executives.

         3.5.     Business Expenses. Executive shall be entitled to receive
prompt reimbursement for all reasonable employment-related expenses incurred or
paid by him during the Employment Term in the performance of his services,
subject to reasonable substantiation and documentation.

         3.6.     Corporate Opportunities. During the Employment Term, Executive
agrees that he will first present to the President or the Board of Directors,
for acceptance or rejection on behalf of the Company, any opportunity to create
or invest in any company that is or will be involved in

                                        2

<PAGE>

providing or furnishing equipment, systems, components, products, software or
services to customers in industries that the Company serves (including, without
limitation, the semiconductor and flat panel display industries) that comes to
his attention and in which he, or any affiliate, might desire to participate. If
the Board of Directors rejects the same or fails to act thereon in a reasonable
time, Executive shall be free to invest in, participate or present such
opportunity to any other person or entity.

4.       Employment. Nothing contained in this Agreement shall be deemed to
modify or otherwise affect Executive's status as an employee at will, or any
other term or condition of Executive's employment by the Company, except as
expressly set forth herein.

5.       Indemnification. Concurrent with the execution of this Agreement,
Executive and the Company entered into the Indemnification Agreement attached
hereto as Exhibit A.

6.       Change of Control Agreement. Concurrent with the execution of this
Agreement, Executive and the Company entered into the Change of Control
Agreement attached hereto as Exhibit B.

7.       Non-Competition Agreement. Concurrent with the execution of this
Agreement, Executive and the Company entered into the Executive Non-Competition
and Proprietary Information Agreement attached hereto as Exhibit C.

8.       Assignment. Neither the Company nor Executive may make any assignment
of this Agreement or any interest herein, by operation of law or otherwise,
without the prior written consent of the other party; provided, however, that
the Company may assign its rights and obligations under this Agreement without
the consent of Executive if the Company shall hereafter effect a reorganization,
consolidate with, or merge into any other entity or transfer all or
substantially all of its properties or assets to any other person or entity.
This Agreement shall be binding upon and inure to the benefit of the Company,
Executive and their respective successors, executors, administrators, heirs and
permitted assigns.

9.       Waiver. The waiver by any party hereto of a breach of any provision of
this Agreement by any other party will not operate or be construed as a waiver
of any other or subsequent breach by such other party.

10.      Severability. The parties agree that each provision contained in this
Agreement shall be treated as a separate and independent clause, and the
unenforceability of any one clause shall in no way impair the enforceability of
any of the other clauses herein. Moreover, if one or more of the provisions
contained in this Agreement shall for any reason be held to be excessively broad
as to scope, activity or subject, such provisions shall be construed by the
appropriate judicial body by limiting and reducing it or them, so as to be
enforceable to the extent compatible with the applicable law.

                                        3

<PAGE>

11.      Notices. Any notice or other communication in connection with this
Agreement shall be deemed to be delivered if in writing, addressed as provided
below and actually delivered at said address:

         If to Executive, to him at the following address:

                  Robert W. Woodbury, Jr.
                  13 Plumbly Road
                  Upton, MA   01568

         If to the Company, to it at the following address:

                  Brooks-PRI Automation, Inc.
                  15 Elizabeth Drive
                  Chelmsford, MA 01824
                  Attn: Senior Vice President Human Resources

         or to such other person or address as to which either party may notify
the other in accordance with this Section 11.

12.      Applicable Law. This Agreement shall be interpreted and construed in
accordance with the laws of the Commonwealth of Massachusetts.

13.      Remedies. Executive acknowledges that a breach of any of the promises
or agreements contained herein could result in irreparable and continuing damage
to the Company for which there may be no adequate remedy at law, and the Company
shall be entitled to seek injunctive relief and/or a decree for specific
performance, and such other relief as may be proper (including monetary damages
if appropriate).

14.      Integration. This Agreement, the Indemnification Agreement attached
hereto as Exhibit A, the Change of Control Agreement attached hereto as Exhibit
B, and the Executive Non-Competition and Proprietary Information Agreement
attached hereto as Exhibit C together form the entire agreement between the
parties hereto with respect to the subject matter contained in this Agreement
and shall supersede all prior agreements, oral discussions, promises and
representations regarding employment, compensation, severance or other payments
contingent upon termination of employment, whether in writing or otherwise.

15.      Documents and Materials. Upon termination of the Employment Term or
this Agreement, or at any other time upon the Company's request, Executive will
promptly deliver to the Company, without retaining any copies, all documents and
other materials whether in paper or electronic form or resident on any other
media, furnished to him by the Company, prepared by him for the Company or
otherwise relating to the Company's business, including, without limitation, all
written and tangible material in his possession incorporating any proprietary
information.

                                        4

<PAGE>

16.      Absence of Conflicting Obligations. Executive represents that he is not
bound by any agreement or any other existing or previous business relationship
that conflicts with or prevents the full performance of his duties and
responsibilities during the Employment Term. Executive further represents that
his obligations under this Agreement do not breach and will not breach any
agreement to keep in confidence proprietary information, knowledge or data
acquired by him.

17.      Effect of Headings. Any title of a section heading contained herein is
for convenience of reference only, and shall not affect the meaning of
construction or any of the provisions hereof.

18.      Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original and all of which
together shall be considered one and the same agreement.

19.      Survival. Notwithstanding any provisions of this Agreement to the
contrary, the obligations of Executive and the Company pursuant to Sections 5
through 18 hereof shall each survive termination of this Agreement.

                            [SIGNATURE PAGE FOLLOWS]

                                        5

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have hereunto set their hands,
as of the date first above written.

                           EXECUTIVE

                           /s/ Robert W. Woodbury, Jr.
                           ---------------------------
                           Robert W. Woodbury, Jr.

                           BROOKS-PRI AUTOMATION, INC.

                           By: /s/ Edward C. Grady
                               -------------------
                               Edward C. Grady
                               President and Chief Operating Officer

                                       6

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