Document:

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                                                                    Exhibit 10.2

                          DIRECTOR COMPENSATION POLICY

This policy is only intended to cover compensation for Directors of NxStage
Medical, Inc. (the "Corporation") who are not employees of the Corporation or
have not been employees of the Corporation within the preceding 12 months
("Non-Employee Directors"). Directors who are not Non-Employee Directors shall
not receive compensation from the Corporation for their services as Directors.
All Directors shall receive reimbursement for reasonable travel expenses
incurred to attend Board and committee meetings.

Non-Employee Directors shall receive a $15,000 annual retainer, to be paid
quarterly, in four equal installments, in advance. In addition, the Chairperson
of the Audit Committee of the Board shall receive an additional $10,000 annual
retainer, each member of the Audit Committee, other than the Chairperson, shall
receive an additional $6,000 annual retainer, and each member of any other
committee of the Board shall receive an additional $4,000 annual retainer for
each committee (other than the Audit Committee) served on. Each such retainer
shall be paid quarterly, in four equal installments, in advance.

Each Non-Employee Director will also receive a fee for attending each Board
meeting, as recorded in the minutes of such meeting. For each meeting attended
in person, each Non-Employee Director will receive $2,500. For each meeting of
the Board attended telephonically or by videoconference, each Non-Employee
Director will receive $1,000. For each committee meeting attended, in person or
by telephone or videoconference on a day other than a date on which a Board
meeting is held, each Non-Employee Director will receive $1,000. Fees are
payable on a quarterly basis.

In no event will any Director receive in aggregate more than $50,000 cash
(exclusive of travel reimbursement) in Board fees in any calendar year without
the express approval of the Compensation Committee of the Board.

Each Non-Employee Director shall also receive on the date of each annual meeting
of the Corporation's stockholders at which such Non-Employee Director is
elected, an option to purchase 14,000 shares of the Corporation's Common Stock.
Each such option shall be granted under, and be subject to, the Corporation's
2005 Stock Incentive Plan or any successor plan (the "Plan") and shall (i) be
fully vested, (ii) have an exercise price equal to the closing sale price (for
the primary trading session) of the Common Stock on the Nasdaq Stock Market or
the national securities exchange on which the Common Stock is then traded on the
date of grant (and if the Common Stock is not then traded on a national
securities exchange, the fair market value of the Common Stock on such date as
determined by the Board), (iii) expire on the earlier to occur of five years
after the date of grant or three months following a Non-Employee Director's
cessation of service on the Board, and (iv) contain such other terms and
conditions as the Board shall determine.

For each Non-Employee Director initially elected at any time other than at an
annual meeting of the Corporation's stockholders, such Non-Employee Director
shall receive on the date of his or her election to the Board, an option, on the
same terms as set forth above, to purchase that

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number of shares of the Corporation's Common Stock equal to 14,000 shares
pro-rated for the period between the date he or she is first elected to the
Board and the following May 31st.

Such share amounts shall be automatically adjusted in the event of any stock
split, reverse stock split, stock dividend, recapitalization, combination of
shares, reclassification of shares, spin-off or other similar change in
capitalization or event effecting the Corporation's Common Stock, or any
distribution to holders of Common Stock other than an ordinary cash dividend.

Each Non-Employee Director shall have the option to elect to receive shares of
the Corporation's Common Stock in lieu of the cash compensation to be paid
hereunder (an "Equity Election"). Non-Employee Directors desiring to make an
Equity Election must do so in writing on the date of the annual meeting of the
Corporation's stockholders at which such Non-Employee Director is elected. The
Equity Election will apply to all cash compensation to be paid after the date of
the election and will remain in effect until the date of the next annual meeting
of stockholders. Equity Elections may not be revoked. Non-Employee Directors who
make an Equity Election shall receive quarterly grants of Common Stock, on the
last business day of any calendar quarter hereunder (a "Quarterly Grant Date"),
in an amount equal to the quotient of the total cash consideration such
Non-Employee Director earned during that quarter (quarterly retainers plus
meeting fees) divided by the closing price of the Corporation's Common Stock on
the Quarterly Grant Date on the Nasdaq Stock Market or the national securities
exchange on which the Common Stock is then traded (and if the Common Stock is
not then traded on a national securities exchange, the fair market value of the
Common Stock on such date as determined by the Board). Shares shall be granted
under, and be subject to, the Plan.

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                                                                    Exhibit 10.3

                              NxStage Medical, Inc.

                           Restricted Stock Agreement
                     Granted Under 2005 Stock Incentive Plan

      AGREEMENT made this 24th day of March, 2006, between NxStage Medical,
Inc., a Delaware corporation (the "Company"), and Philip R. Licari (the
"Participant").

      For valuable consideration, receipt of which is acknowledged, the parties
hereto agree as follows:

      1. Purchase of Shares.

      The Company shall issue and sell to the Participant, and the Participant
shall purchase from the Company, subject to the terms and conditions set forth
in this Agreement and in the Company's 2005 Stock Incentive Plan (the "Plan"),
13,027 shares (the "Shares") of common stock, $0.001 par value, of the Company
("Common Stock"), at a purchase price of $0.001 per share. The aggregate
purchase price for the Shares shall be paid by the Participant by check payable
to the order of the Company or such other method as may be acceptable to the
Company. Upon receipt by the Company of payment for the Shares, the Company
shall issue to the Participant one or more certificates in the name of the
Participant for that number of Shares purchased by the Participant. The
Participant agrees that the Shares shall be subject to the purchase options set
forth in Section 2 of this Agreement and the restrictions on transfer set forth
in Section 4 of this Agreement.

      2. Purchase Option.

            (a) In the event that the Participant ceases to be employed by the
Company for any reason or no reason, with or without cause, prior to October 24,
2008, the Company shall have the right and option (the "Purchase Option") to
purchase from the Participant, for a sum of $0.001 per share (the "Option
Price"), some or all of the Unvested Shares (as defined below).

      "Unvested Shares" means the total number of Shares multiplied by the
Applicable Percentage at the time the Purchase Option becomes exercisable by the
Company. The "Applicable Percentage" shall be (i) 100% on or after the date
hereof; (ii) 100% less 22.96% on or after January 1, 2007 through January 24,
2007, (iii) 77.04% less 3.502% for each month of employment completed from and
after January 25, 2007 through October 24, 2008, and (iii) zero on or after
October 24, 2008.

            (b) If the Participant is employed by a parent or subsidiary of the
Company, any references in this Agreement to employment with the Company or
termination of employment by or with the Company shall instead be deemed to
refer to such parent or subsidiary.

      3. Exercise of Purchase Option and Closing.

            (a) The Company may exercise the Purchase Option by delivering or
mailing to the Participant (or his estate), within 90 days after the termination
of the employment of the

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Participant with the Company, a written notice of exercise of the Purchase
Option. Such notice shall specify the number of Shares to be purchased. If and
to the extent the Purchase Option is not so exercised by the giving of such a
notice within such 90-day period, the Purchase Option shall automatically expire
and terminate effective upon the expiration of such 90-day period.

            (b) Within 10 days after delivery to the Participant of the
Company's notice of the exercise of the Purchase Option pursuant to subsection
(a) above, the Participant (or his estate) shall, pursuant to the provisions of
the Joint Escrow Instructions referred to in Section 7 below, tender to the
Company at its principal offices the certificate or certificates representing
the Shares which the Company has elected to purchase in accordance with the
terms of this Agreement, duly endorsed in blank or with duly endorsed stock
powers attached thereto, all in form suitable for the transfer of such Shares to
the Company. Promptly following its receipt of such certificate or certificates,
the Company shall pay to the Participant the aggregate Option Price for such
Shares (provided that any delay in making such payment shall not invalidate the
Company's exercise of the Purchase Option with respect to such Shares).

            (c) After the time at which any Shares are required to be delivered
to the Company for transfer to the Company pursuant to subsection (b) above, the
Company shall not pay any dividend to the Participant on account of such Shares
or permit the Participant to exercise any of the privileges or rights of a
stockholder with respect to such Shares, but shall, in so far as permitted by
law, treat the Company as the owner of such Shares.

            (d) The Option Price may be payable, at the option of the Company,
in cancellation of all or a portion of any outstanding indebtedness of the
Participant to the Company or in cash (by check) or both.

            (e) The Company shall not purchase any fraction of a Share upon
exercise of the Purchase Option, and any fraction of a Share resulting from a
computation made pursuant to Section 2 of this Agreement shall be rounded to the
nearest whole Share (with any one-half Share being rounded upward).

            (f) The Company may assign its Purchase Option to one or more
persons or entities.

      4. Restrictions on Transfer.

      The Participant shall not sell, assign, transfer, pledge, hypothecate or
otherwise dispose of, by operation of law or otherwise (collectively "transfer")
any Shares, or any interest therein, that are subject to the Purchase Option,
except that the Participant may transfer such Shares (i) to or for the benefit
of any spouse, children, parents, uncles, aunts, siblings, grandchildren and any
other relatives approved by the Board of Directors (collectively, "Approved
Relatives") or to a trust established solely for the benefit of the Participant
and/or Approved Relatives, provided that such Shares shall remain subject to
this Agreement (including without limitation the restrictions on transfer set
forth in this Section 4 and the Purchase Option) and such permitted transferee
shall, as a condition to such transfer, deliver to the Company a written
instrument confirming that such transferee shall be bound by all of the terms
and conditions of this Agreement or (ii) as

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part of the sale of all or substantially all of the shares of capital stock of
the Company (including pursuant to a merger or consolidation), provided that, in
accordance with the Plan, the securities or other property received by the
Participant in connection with such transaction shall remain subject to this
Agreement.

      5. Escrow.

      The Participant shall, upon the execution of this Agreement, execute Joint
Escrow Instructions in the form attached to this Agreement as Exhibit A. The
Joint Escrow Instructions shall be delivered to the Secretary of the Company, as
escrow agent thereunder. The Participant shall deliver to such escrow agent a
stock assignment duly endorsed in blank, in the form attached to this Agreement
as Exhibit B, and hereby instructs the Company to deliver to such escrow agent,
on behalf of the Participant, the certificate(s) evidencing the Shares issued
hereunder. Such materials shall be held by such escrow agent pursuant to the
terms of such Joint Escrow Instructions.

      6. Restrictive Legends.

      All certificates representing Shares shall have affixed thereto legends in
substantially the following form, in addition to any other legends that may be
required under federal or state securities laws:

            "The shares of stock represented by this certificate are subject to
            restrictions on transfer and an option to purchase set forth in a
            certain Restricted Stock Agreement between the corporation and the
            registered owner of these shares (or his predecessor in interest),
            and such Agreement is available for inspection without charge at the
            office of the Secretary of the corporation."

      7. Provisions of the Plan.

            (a) This Agreement is subject to the provisions of the Plan, a copy
of which is furnished to the Participant with this Agreement.

            (b) As provided in the Plan, upon the occurrence of a Reorganization
Event (as defined in the Plan), the repurchase and other rights of the Company
hereunder shall inure to the benefit of the Company's successor and shall apply
to the cash, securities or other property which the Shares were converted into
or exchanged for pursuant to such Reorganization Event in the same manner and to
the same extent as they applied to the Shares under this Agreement. If, in
connection with a Reorganization Event, a portion of the cash, securities and/or
other property received upon the conversion or exchange of the Shares is to be
placed into escrow to secure indemnification or similar obligations, the mix
between the vested and unvested portion of such cash, securities and/or other
property that is placed into escrow shall be the same as the mix between the
vested and unvested portion of such cash, securities and/or other property that
is not subject to escrow.

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      8. Withholding Taxes; Section 83(b) Election.

            (a) The Participant acknowledges and agrees that the Company has the
right to deduct from payments of any kind otherwise due to the Participant any
federal, state or local taxes of any kind required by law to be withheld with
respect to the purchase of the Shares by the Participant or the lapse of the
Purchase Option.

            (b) The Participant has reviewed with the Participant's own tax
advisors the federal, state, local and foreign tax consequences of this
investment and the transactions contemplated by this Agreement. The Participant
is relying solely on such advisors and not on any statements or representations
of the Company or any of its agents. The Participant understands that the
Participant (and not the Company) shall be responsible for the Participant's own
tax liability that may arise as a result of this investment or the transactions
contemplated by this Agreement. The Participant understands that it may be
beneficial in many circumstances to elect to be taxed at the time the Shares are
purchased rather than when and as the Company's Purchase Option expires by
filing an election under Section 83(b) of the Internal Revenue Code of 1986 with
the I.R.S. within 30 days from the date of purchase.

            THE PARTICIPANT ACKNOWLEDGES THAT IT IS SOLELY THE PARTICIPANT'S
RESPONSIBILITY AND NOT THE COMPANY'S TO FILE TIMELY THE ELECTION UNDER SECTION
83(b), EVEN IF THE PARTICIPANT REQUESTS THE COMPANY OR ITS REPRESENTATIVES TO
MAKE THIS FILING ON THE PARTICIPANT'S BEHALF.

      9. Miscellaneous.

            (a) No Rights to Employment. The Participant acknowledges and agrees
that the vesting of the Shares pursuant to Section 2 hereof is earned only by
continuing service as an employee at the will of the Company (not through the
act of being hired or purchasing shares hereunder). The Participant further
acknowledges and agrees that the transactions contemplated hereunder and the
vesting schedule set forth herein do not constitute an express or implied
promise of continued engagement as an employee or consultant for the vesting
period, for any period, or at all.

            (b) Severability. The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability of
any other provision of this Agreement, and each other provision of this
Agreement shall be severable and enforceable to the extent permitted by law.

            (c) Waiver. Any provision for the benefit of the Company contained
in this Agreement may be waived, either generally or in any particular instance,
by the Board of Directors of the Company.

            (d) Binding Effect. This Agreement shall be binding upon and inure
to the benefit of the Company and the Participant and their respective heirs,
executors, administrators,

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legal representatives, successors and assigns, subject to the restrictions on
transfer set forth in Sections 4 and 5 of this Agreement.

            (e) Notice. All notices required or permitted hereunder shall be in
writing and deemed effectively given upon personal delivery or five days after
deposit in the United States Post Office, by registered or certified mail,
postage prepaid, addressed to the other party hereto at the address shown
beneath his or its respective signature to this Agreement, or at such other
address or addresses as either party shall designate to the other in accordance
with this Section 12(e).

            (f) Pronouns. Whenever the context may require, any pronouns used in
this Agreement shall include the corresponding masculine, feminine or neuter
forms, and the singular form of nouns and pronouns shall include the plural, and
vice versa.

            (g) Entire Agreement. This Agreement and the Plan constitute the
entire agreement between the parties, and supersedes all prior agreements and
understandings, relating to the subject matter of this Agreement.

            (h) Amendment. This Agreement may be amended or modified only by a
written instrument executed by both the Company and the Participant.

            (i) Governing Law. This Agreement shall be construed, interpreted
and enforced in accordance with the internal laws of the State of Delaware
without regard to any applicable conflicts of laws.

            (j) Participant's Acknowledgments. The Participant acknowledges that
he or she: (i) has read this Agreement; (ii) has been represented in the
preparation, negotiation, and execution of this Agreement by legal counsel of
the Participant's own choice or has voluntarily declined to seek such counsel;
(iii) understands the terms and consequences of this Agreement; (iv) is fully
aware of the legal and binding effect of this Agreement; and (v) understands
that the law firm of Wilmer Cutler Pickering Hale and Dorr LLP, is acting as
counsel to the Company in connection with the transactions contemplated by the
Agreement, and is not acting as counsel for the Participant.

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      IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

                                             NXSTAGE MEDICAL, INC.

                                             By:_______________________________
                                                Title:_________________________
                                             Address: _________________________
                                                      _________________________

                                             __________________________________
                                             Philip R. Licari

                                             Address: _________________________
                                                      _________________________

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                                    Exhibit A

                              NxStage Medical, Inc.

                            Joint Escrow Instructions

                                 March 24, 2006

Secretary
NxStage Medical, Inc.
439 South Union Street
Lawrence, MA 01843

Dear Sir:

      As Escrow Agent for NxStage Medical, Inc., a Delaware corporation, and its
successors in interest under the Restricted Stock Agreement (the "Agreement") of
even date herewith, to which a copy of these Joint Escrow Instructions is
attached (the "Company"), and the undersigned person ("Holder"), you are hereby
authorized and directed to hold the documents delivered to you pursuant to the
terms of the Agreement in accordance with the following instructions:

      1. Appointment. Holder irrevocably authorizes the Company to deposit with
you any certificates evidencing Shares (as defined in the Agreement) to be held
by you hereunder and any additions and substitutions to said Shares. For
purposes of these Joint Escrow Instructions, "Shares" shall be deemed to include
any additional or substitute property. Holder does hereby irrevocably constitute
and appoint you as his attorney-in-fact and agent for the term of this escrow to
execute with respect to such Shares all documents necessary or appropriate to
make such Shares negotiable and to complete any transaction herein contemplated.
Subject to the provisions of this Section 1 and the terms of the Agreement,
Holder shall exercise all rights and privileges of a stockholder of the Company
while the Shares are held by you.

      2. Closing of Purchase.

            (a) Upon any purchase by the Company of the Shares pursuant to the
Agreement, the Company shall give to Holder and you a written notice specifying
the purchase price for the Shares, as determined pursuant to the Agreement, and
the time for a closing hereunder (the "Closing") at the principal office of the
Company. Holder and the Company hereby irrevocably authorize and direct you to
close the transaction contemplated by such notice in accordance with the terms
of said notice.

            (b) At the Closing, you are directed (i) to date the stock
assignment form or forms necessary for the transfer of the Shares, (ii) to fill
in on such form or forms the number of

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Shares being transferred, and (iii) to deliver same, together with the
certificate or certificates evidencing the Shares to be transferred, to the
Company against the simultaneous delivery to you of the purchase price for the
Shares being purchased pursuant to the Agreement.

      3. Withdrawal. The Holder shall have the right to withdraw from this
escrow any Shares as to which the Purchase Option (as defined in the Agreement)
has terminated or expired.

      4. Duties of Escrow Agent.

            (a) Your duties hereunder may be altered, amended, modified or
revoked only by a writing signed by all of the parties hereto.

            (b) You shall be obligated only for the performance of such duties
as are specifically set forth herein and may rely and shall be protected in
relying or refraining from acting on any instrument reasonably believed by you
to be genuine and to have been signed or presented by the proper party or
parties. You shall not be personally liable for any act you may do or omit to do
hereunder as Escrow Agent or as attorney-in-fact of Holder while acting in good
faith and in the exercise of your own good judgment, and any act done or omitted
by you pursuant to the advice of your own attorneys shall be conclusive evidence
of such good faith.

            (c) You are hereby expressly authorized to disregard any and all
warnings given by any of the parties hereto or by any other person or entity,
excepting only orders or process of courts of law, and are hereby expressly
authorized to comply with and obey orders, judgments or decrees of any court. If
you are uncertain of any actions to be taken or instructions to be followed, you
may refuse to act in the absence of an order, judgment or decrees of a court. In
case you obey or comply with any such order, judgment or decree of any court,
you shall not be liable to any of the parties hereto or to any other person or
entity, by reason of such compliance, notwithstanding any such order, judgment
or decree being subsequently reversed, modified, annulled, set aside, vacated or
found to have been entered without jurisdiction.

            (d) You shall not be liable in any respect on account of the
identity, authority or rights of the parties executing or delivering or
purporting to execute or deliver the Agreement or any documents or papers
deposited or called for hereunder.

            (e) You shall be entitled to employ such legal counsel and other
experts as you may deem necessary properly to advise you in connection with your
obligations hereunder and may rely upon the advice of such counsel.

            (f) Your rights and responsibilities as Escrow Agent hereunder shall
terminate if (i) you cease to be Secretary of the Company or (ii) you resign by
written notice to each party. In the event of a termination under clause (i),
your successor as Secretary shall become Escrow Agent hereunder; in the event of
a termination under clause (ii), the Company shall appoint a successor Escrow
Agent hereunder.

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            (g) If you reasonably require other or further instruments in
connection with these Joint Escrow Instructions or obligations in respect
hereto, the necessary parties hereto shall join in furnishing such instruments.

            (h) It is understood and agreed that if you believe a dispute has
arisen with respect to the delivery and/or ownership or right of possession of
the securities held by you hereunder, you are authorized and directed to retain
in your possession without liability to anyone all or any part of said
securities until such dispute shall have been settled either by mutual written
agreement of the parties concerned or by a final order, decree or judgment of a
court of competent jurisdiction after the time for appeal has expired and no
appeal has been perfected, but you shall be under no duty whatsoever to
institute or defend any such proceedings.

            (i) These Joint Escrow Instructions set forth your sole duties with
respect to any and all matters pertinent hereto and no implied duties or
obligations shall be read into these Joint Escrow Instructions against you.

            (j) The Company shall indemnify you and hold you harmless against
any and all damages, losses, liabilities, costs, and expenses, including
attorneys' fees and disbursements, (including without limitation the fees of
counsel retained pursuant to Section 4(e) above, for anything done or omitted to
be done by you as Escrow Agent in connection with this Agreement or the
performance of your duties hereunder, except such as shall result from your
gross negligence or willful misconduct.

      5. Notice. Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given upon personal delivery or upon
deposit in the United States Post Office, by registered or certified mail with
postage and fees prepaid, addressed to each of the other parties thereunto
entitled at the following addresses, or at such other addresses as a party may
designate by ten days' advance written notice to each of the other parties
hereto.

            COMPANY:      Notices to the Company shall be sent to
                          the address set forth in the salutation
                          hereto, Attn: President

            HOLDER:       Notices to Holder shall be sent to the
                          address set forth below Holder's
                          signature below.

            ESCROW AGENT: Notices to the Escrow Agent shall be sent
                          to the address set forth in the salutation
                          hereto.

      6. Miscellaneous.

            (a) By signing these Joint Escrow Instructions, you become a party
hereto only for the purpose of said Joint Escrow Instructions, and you do not
become a party to the Agreement.

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            (b) This instrument shall be binding upon and inure to the benefit
of the parties hereto and their respective successors and permitted assigns.

                                               Very truly yours,

                                               NxStage Medical, Inc.

                                               By:______________________________
                                               Title:___________________________

                                               HOLDER:

                                               _________________________________
                                                           (Signature)

                                               _________________________________
                                                           Print Name

                                               Address: ________________________
                                                        ________________________

                                               Date Signed:_____________________
ESCROW AGENT:
________________________

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                                    Exhibit B

                                    (STOCK ASSIGNMENT SEPARATE FROM CERTIFICATE)

      FOR VALUE RECEIVED, I hereby sell, assign and transfer unto
__________________ (_________) shares of Common Stock, $0.001 par value per
share, of NxStage Medical, Inc. (the "Corporation") standing in my name on the
books of the Corporation represented by Certificate(s) Number __________
herewith, and do hereby irrevocably constitute and appoint
______________________ attorney to transfer the said stock on the books of the
Corporation with full power of substitution in the premises.

                                                     Dated: ____________________

IN PRESENCE OF                                       ___________________________

                                                     ___________________________

      NOTICE: The signature(s) to this assignment must correspond with the name
as written upon the face of the certificate, in every particular, without
alteration, enlargement, or any change whatever and must be guaranteed by a
commercial bank, trust company or member firm of the Boston, New York or Midwest
Stock Exchange.

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