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  Exhibit 10.2    
    

 
  A123 SYSTEMS, INC.    
    
    Incentive Stock Option Agreement
Granted Under 2001 Stock Incentive Plan    
    

1.     Grant of Option.  

        This agreement evidences the grant by A123 Systems, Inc., a Delaware corporation (the "Company"),
on                                    (the "Grant Date")
to                                    ,
an employee of the Company (the "Participant"), of an option to purchase, in whole or in part, on the terms provided herein and in the Company's 2001 Stock Incentive Plan (the "Plan"), a total of
                                    shares (the "Shares") of common
stock, $0.001 par value per share, of the Company ("Common Stock") at $                        per Share. For purposes of this
option, the "Vesting Commencement
Date" shall mean                                    . Unless earlier
terminated, this option shall expire
on                                    (the "Final Exercise Date").
 

        It
is intended that the option evidenced by this agreement shall be an incentive stock option as defined in Section 422 of the Internal Revenue Code of 1986, as amended and any
regulations promulgated thereunder (the "Code"). Except as otherwise indicated by the context, the term "Participant", as used
in this option, shall be deemed to include any person who acquires the right to exercise this option validly under its terms. 

2.     Vesting Schedule.  

        (a)   This
option will become exercisable ("vest") as to 25% of the original number of Shares on the first anniversary of the Vesting Commencement Date and as to an additional
6.25% of the original number of Shares at the end of each three-month period following the first anniversary of the Vesting Commencement Date until the fourth anniversary of the Vesting Commencement
Date. 

        (b)   The
right of exercise shall be cumulative so that to the extent the option is not exercised in any period to the maximum extent permissible it shall continue to be
exercisable, in whole or in part, with respect to all shares for which it is vested until the earlier of the Final Exercise Date or the termination of this option under Section 3 hereof or the
Plan. 

        (c)   Upon
the occurrence of a Sale (as defined below) of the Company, the vesting of this option under Section 2(a) above shall be accelerated in part so that the
option shall become exercisable for an additional number of shares equal to 25% of the Shares originally subject to this option. This option shall continue to vest with respect to the remaining
unvested Shares in accordance with Section 2(a) above. 

3.     Exercise of Option.  

        (a)   Form of Exercise.    Each election to exercise this option shall be in writing, in substantially the form of
Notice of Stock Option Exercise attached hereto as Exhibit A, signed by the Participant, and received by the Company at its principal office,
accompanied by this agreement, and payment in full in the manner provided in the Plan. The Participant may purchase less than the number of shares covered hereby, provided that no partial exercise of
this option may be for any fractional share or for fewer than one hundred whole shares. 

        (b)   Continuous Relationship with the Company Required.    Except as otherwise provided in this Section 3,
this option may not be exercised unless the Participant, at the time he or she exercises this option, is, and has been at all times since the Grant Date, an employee, officer or director of, or
consultant or advisor to, the Company or any parent or subsidiary of the Company as defined in Section 424(e) or (f) of the Code (an "Eligible Participant"). 

        (c)   Termination of Relationship with the Company.    If the Participant ceases to be an Eligible Participant for
any reason, then, except as provided in paragraphs (d) and (e) below, the right to 

 

exercise
this option shall terminate three months after such cessation (but in no event after the Final Exercise Date), provided that this option shall
be exercisable only to the extent that the Participant was entitled to exercise this option on the date of such cessation. Notwithstanding the foregoing, if the Participant, prior to the Final
Exercise Date, violates the non-competition or confidentiality provisions of any employment contract, confidentiality and nondisclosure agreement or other agreement between the Participant
and the Company, the right to exercise this option shall terminate immediately upon written notice to the Participant from the Company describing such violation. 

        (d)   Exercise Period Upon Death or Disability.    If the Participant dies or becomes disabled (within the meaning of
Section 22(e)(3) of the Code) prior to the Final Exercise Date while he or she is an Eligible Participant and the Company has not terminated such relationship for "cause" as specified in
paragraph (e) below, this option shall be exercisable, within the period of one year following the date of death or disability of the Participant by the Participant,  provided that this option shall
be exercisable only to the extent that this option was exercisable by the Participant on the date of his or her death or
disability, and further provided that this option shall not be exercisable after the Final Exercise Date. 

        (e)   Discharge for Cause.    If the Participant, prior to the Final Exercise Date, is discharged by the Company for
"cause" (as defined below), the right to exercise this option shall terminate immediately upon the effective date of such discharge. "Cause" shall mean willful misconduct by the Participant or willful
failure by the Participant to perform his or her responsibilities to the Company (including, without limitation, breach by the Participant of any provision of any employment, consulting, advisory,
nondisclosure, non-competition or other similar agreement between the Participant and the Company), as determined by the Company, which determination shall be conclusive. The Participant
shall be considered to have been discharged for "Cause" if the Company determines, within 30 days after the Participant's resignation, that discharge for cause was warranted. 

4.     Right of First Refusal.  

        (a)   If
the Participant proposes to sell, assign, transfer, pledge, hypothecate or otherwise dispose of, by operation of law or otherwise (collectively, "transfer") any
Shares acquired upon exercise of this option, then the Participant shall first give written notice of the proposed transfer (the "Transfer Notice") to the Company. The Transfer Notice shall name the
proposed transferee and state the number of such Shares the Participant proposes to transfer (the "Offered Shares"), the price per share and all other material terms and conditions of the transfer. 

        (b)   For
30 days following its receipt of such Transfer Notice, the Company shall have the option to purchase all (but not less than all) of the Offered Shares at the
price and upon the terms set forth in the Transfer Notice. In the event the Company elects to purchase all of the Offered Shares, it shall give written notice of such election to the Participant
within such 30-day period. Within 10 days after his receipt of such notice, the Participant shall tender to the Company at its principal offices the certificate or certificates
representing the Offered Shares, duly endorsed in blank by the Participant or with duly endorsed stock powers attached thereto, all in a form suitable for transfer of the Offered Shares to the
Company. Promptly following receipt of such certificate or certificates, the Company shall deliver or mail to the Participant a check in payment of the purchase price for the Offered Shares;  provided that if the terms of payment set forth in the Transfer Notice were other than cash against delivery, the Company may pay for the Offered Shares
on the same terms and conditions as were set forth in the Transfer Notice; and provided further that any delay in making such payment shall not
invalidate the Company's exercise of its option to purchase the Offered Shares. 

        (c)   If
the Company does not elect to acquire all of the Offered Shares, the Participant may, within the 30-day period following the expiration of the option
granted to the Company under subsection (b) above, transfer the Offered Shares to the proposed transferee, provided that such transfer shall not
be on terms and conditions more favorable to the transferee than those contained in the 

2

 

Transfer
Notice. Notwithstanding any of the above, all Offered Shares transferred pursuant to this Section 4 shall remain subject to the right of first refusal set forth in this
Section 4 and such 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 Section 4. 

        (d)   After
the time at which the Offered 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 Offered Shares or permit the Participant to exercise any of the privileges or rights of a stockholder with respect to such Offered
Shares, but shall, in so far as permitted by law, treat the Company as the owner of such Offered Shares. 

        (e)   The
following transactions shall be exempt from the provisions of this Section 4: 

        (1)   any
transfer of Shares to or for the benefit of the Participant's spouse, any of the Participant's or his spouse's parents, children, siblings, nieces, nephews or
grandchildren, or to a trust for his or their benefit; 

        (2)   any
transfer pursuant to an effective registration statement filed by the Company under the Securities Act of 1933, as amended (the "Securities Act"); and 

        (3)   the
sale of all or substantially all of the shares of capital stock of the Company (including pursuant to a merger or consolidation); 

provided, however, that in the case of a transfer pursuant to clause (1) above, such Shares shall
remain subject to the right of first refusal set forth in this Section 4 and such 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 Section 4. 

        (f)    The
Company may assign its rights to purchase Offered Shares in any particular transaction under this Section 4 to one or more persons or entities. 

        (g)   The
provisions of this Section 4 shall terminate upon the earlier of the following events: 

        (1)   the
closing of the sale of shares of Common Stock in an underwritten public offering pursuant to an effective registration statement filed by the Company under the
Securities Act; or 

        (2)   the
sale of all or substantially all of the capital stock, assets or business of the Company, by merger, consolidation, sale of assets or otherwise (other than a merger
or consolidation in which all or substantially all of the individuals and entities who were beneficial owners of the Common Stock immediately prior to such transaction beneficially own, directly or
indirectly, more than 50% of the outstanding securities entitled to vote generally in the election of directors of the resulting, surviving or acquiring corporation in such transaction). A transaction
of the type contemplated by this Section 4(g)(2) is herein referred to as a "Sale" of the Company. 

        (h)   The
Company shall not be required (a) to transfer on its books any of the Shares which shall have been sold or transferred in violation of any of the provisions
set forth in this Section 4, or (b) to treat as owner of such Shares or to pay dividends to any transferee to whom any such Shares shall have been so sold or transferred. 

5.     Agreement in Connection with Public Offering.  

        The Participant agrees, in connection with the initial underwritten public offering of the Company's securities pursuant to a registration statement under the
Securities Act, (i) not to sell, make short sale of, loan, grant any options for the purchase of, or otherwise dispose of any shares of Common Stock held by the Participant (other than those
shares included in the offering) without the prior written consent of the Company or the underwriters managing such initial underwritten public offering of the Company's securities for a period of
180 days from the effective date of such 

3

 

registration
statement, and (ii) to execute any agreement reflecting clause (i) above as may be requested by the Company or the managing underwriters at the time of such offering. 

6.     Withholding.  

        No Shares will be issued pursuant to the exercise of this option unless and until the Participant pays to the Company, or makes provision satisfactory to the
Company for payment of, any federal, state or local withholding taxes required by law to be withheld in respect of this option. 

7.     Nontransferability of Option.  

        This option may not be sold, assigned, transferred, pledged or otherwise encumbered by the Participant, either voluntarily or by operation of law, except by will
or the laws of descent and distribution, and, during the lifetime of the Participant, this option shall be exercisable only by the Participant. 

8.     Disqualifying Disposition.  

        If the Participant disposes of Shares acquired upon exercise of this option within two years from the Grant Date or one year after such Shares were acquired
pursuant to exercise of this option, the Participant shall notify the Company in writing of such disposition. 

9.     Provisions of the Plan.  

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

        IN
WITNESS WHEREOF, the Company has caused this option to be executed under its corporate seal by its duly authorized officer. This option shall take effect as a sealed instrument. 

							
	 	 	 	 	A123 SYSTEMS, INC.
	

Dated:	
 	

 	
 	

By:	
 	

 
	 	 	

 	 	 	 	

 
	 	 	 	 	Name:	 	Michael Rubino
	 	 	 	 	Title:	 	CFO

Vice President, Finance & Administration

4

 
PARTICIPANT'S
ACCEPTANCE 

        The
undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company's 2001 Stock
Incentive Plan. 

					
	 	 	PARTICIPANT:
	

 	
 	

NAME
	

 	
 	

Address:	
 	

 
	 	 	 	 	

 
	

 	
 	

 	
 	

 

5

 Exhibit A  

NOTICE OF STOCK OPTION EXERCISE 

Date:                                    

A123
Systems, Inc.

Arsenal on the Charles

321 Arsenal Street

Watertown, MA 02472 

Attention:
Treasurer 

Dear
Sir or Madam: 

        I
am the holder of an Incentive Stock Option granted to me under the A123 Systems, Inc. (the "Company") 2001 Stock Incentive Plan
on                                    for the purchase of
                        shares of Common Stock of the Company at a purchase price of
$0.            per share. 

        I
hereby exercise my option to
purchase                                    shares of Common Stock
(the "Shares"), for which I have
enclosed                                    in the amount of
[$                        ]. Please register my stock certificate as follows: 

			
	Name(s) to Appear on Stock Certificate:	 	 
	 	 	

 
	

 	
 	

 
	

Address:	
 	

 
	 	 	

 
	

Tax I.D. #:	
 	

 
	 	 	

 

        I
represent, warrant and covenant as follows: 

        1.     I
am purchasing the Shares for my own account for investment only, and not with a view to, or for sale in connection with, any distribution of the Shares in violation of
the Securities Act of 1933 (the "Securities Act"), or any rule or regulation under the Securities Act. 

        2.     I
have had such opportunity as I have deemed adequate to obtain from representatives of the Company such information as is necessary to permit me to evaluate the merits
and risks of my investment in the Company. 

        3.     I
have sufficient experience in business, financial and investment matters to be able to evaluate the risks involved in the purchase of the Shares and to make an informed
investment decision with respect to such purchase. 

        4.     I
can afford a complete loss of the value of the Shares and am able to bear the economic risk of holding such Shares for an indefinite period. 

        5.     I
understand that (i) the Shares have not been registered under the Securities Act and are "restricted securities" within the meaning of Rule 144 under the
Securities Act, (ii) the Shares cannot be sold, transferred or otherwise disposed of unless they are subsequently registered under the Securities Act or an exemption from registration is then
available; (iii) in any event, the exemption from registration under Rule 144 will not be available for at least one year and even then will not be available unless a public market then
exists for the Common Stock, adequate information concerning the Company is then available to the public, and other terms and conditions of Rule 144 are complied with; and (iv) there is
now no registration statement on file with the Securities and Exchange Commission with respect to any stock of the Company and the Company has no obligation or current intention to register the Shares
under the Securities Act. 

Very
truly yours, 

			
	

(Signature)	 	 

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Exhibit 10.2

A123 SYSTEMS, INC. Incentive Stock Option Agreement Granted Under 2001 Stock Incentive PlanQuickLinks
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  Exhibit 10.3    
    

A123
SYSTEMS, INC. 

Nonstatutory
Stock Option Agreement
 Granted Under 2001 Stock Incentive Plan  

1.    Grant of Option.    

        This
agreement evidences the grant by A123 Systems, Inc., a Delaware corporation (the "Company"),
on                                    , (the "Grant Date")
to                                    , an employee of the
Company (the "Participant"), of an option to purchase, in whole or in part, on the terms provided herein and in the Company's 2001 Stock Incentive Plan (the "Plan"), a total
of                        shares
(the "Shares") of common stock, $0.001 par value per share, of the Company ("Common Stock") at $                        per Share.
For purposes of this option, the "Vesting Commencement Date" shall mean
January 22, 2008. Unless earlier terminated, this option shall expire
on                                    (the "Final Exercise Date").

        It
is intended that the option evidenced by this agreement shall not be an incentive stock option as defined in Section 422 of the Internal Revenue Code of 1986, as amended and
any regulations promulgated thereunder (the "Code"). Except as otherwise indicated by the context, the term "Participant", as used in this option, shall be deemed to include any person who acquires
the right to exercise this option validly under its terms. Except where the context otherwise requires, the term "Company" shall include any of the Company's present or future parent or subsidiary
corporations as defined in Sections 424(e) or (f) of the Internal Revenue Code of 1986, as amended, and any regulations promulgated thereunder (the "Code") and any other business venture
(including, without limitation,
joint venture or limited liability company) in which the Company has a significant interest, as determined by the Board of Directors of the Company (the "Board"). 

2.    Vesting Schedule.    

        (a)   This
option will become exercisable ("vest") as to 25% of the original number of Shares on the first anniversary of the Vesting Commencement Date and as to an additional
6.25% of the original number of Shares at the end of each three-month period following the first anniversary of the Vesting Commencement Date until the fourth anniversary of the Vesting Commencement
Date. 

        (b)   The
right of exercise shall be cumulative so that to the extent the option is not exercised in any period to the maximum extent permissible it shall continue to be
exercisable, in whole or in part, with respect to all Shares for which it is vested until the earlier of the Final Exercise Date or the termination of this option under Section 3 hereof or the
Plan. 

        (c)   Upon
the occurrence of a Sale (as defined in Section 4(g)(2) below) of the Company, the vesting of this option under Section 2(a) above shall be
accelerated in part so that the option shall become exercisable for an additional number of shares equal to 25% of the Shares originally subject to this option. This option shall continue to vest with
respect to the remaining unvested Shares in accordance with Section 2(a) above; provided, however, that this option shall be immediately exercisable in full if, following the Sale, the
Participant's employment with the Company or the acquiring or succeeding corporation is terminated for Good Reason (as defined below) by the Participant or is terminated without Cause (as defined
below) by the Company or the acquiring or succeeding corporation. 

        (d)   For
purposes of this agreement, the following terms shall have the following meanings: 

        (e)   "Cause"
shall mean (i) a good faith finding by the Board of Directors of the Company (A) of the repeated failure of the Participant after written notice to
perform his reasonably assigned duties for the Company, or (B) that the Participant has engaged in dishonesty, gross negligence or misconduct, which dishonesty, gross negligence or misconduct
has had an adverse effect on the Company; (ii) the conviction of the Participant of, or the entry of a pleading of guilty or nolo contendere by the Participant to, any crime involving moral
turpitude or any felony; or (iii) a breach by the Participant of 

any
material provision of any invention and non-disclosure agreement or non-competition and non-solicitation agreement with the Company, which breach is not cured
within ten days written notice thereof. 

        (f)    "Good
Reason" shall exist upon (i) mutual written agreement by the Participant and the Board of Directors of the Company that Good Reason exists; (ii) the
relocation of the Company such that such Participant's daily commute is increased by at least 30 miles without the written consent of the Participant; (iii) reduction of the Participant's
annual base salary without the prior consent of the Participant (other than in connection with, and substantially proportionate to, reductions by the Company of the annual base salary of more than 75%
of its employees); or (iv) demotion of the Participant to a position with responsibilities substantially less than such Participant's current position without the prior consent of the
Participant. 

3.    Exercise of Option.    

        (a)    Form of Exercise.    Each election to exercise this option shall be made by delivery of an exercise notice, in
the form attached hereto as Exhibit A, signed by the Participant, and received by the Company at its principal office, accompanied by this
agreement, and payment in full in the manner provided in the Plan. The Participant may purchase less than the number of shares covered hereby, provided that no partial exercise of this option may be
for any fractional share or for fewer than one hundred whole shares. 

        (b)    Continuous Relationship with the Company Required.    Except as otherwise provided in this Section 3,
this option may not be exercised unless the Participant, at the time he or she exercises this option, is, and has been at all times since the Grant Date, an employee, officer or director of, or
consultant or advisor to the Company (an "Eligible Participant"). 

        (c)    Termination of Relationship with the Company.    If the Participant ceases to be an Eligible Participant for
any reason, then, except as provided in paragraphs (d) and (e) below, the right to exercise this option shall terminate three months after such cessation (but in no event after the Final
Exercise Date), provided that this option shall be exercisable only to the extent that the Participant was entitled to exercise this option on the date
of such cessation. Notwithstanding the foregoing, if the Participant, prior to the Final Exercise Date, violates the non-competition or confidentiality provisions of any employment
contract, confidentiality and nondisclosure agreement or other agreement between the Participant and the Company, the right to exercise this option shall terminate immediately upon written notice to
the Participant from the Company describing such violation. 

        (d)    Exercise Period Upon Death or Disability.    If the Participant dies or becomes disabled (within the meaning of
Section 22(e)(3) of the Code) prior to the Final Exercise Date while he or she is an Eligible Participant and the Company has not terminated such relationship for "cause" as specified in
paragraph (e) below, this option shall be exercisable, within the period of one year following the date of death or disability of the Participant, by the Participant (or in the case of death by
an authorized transferee), provided that this option shall be exercisable only to the extent that this option was exercisable by the Participant on the
date of his or her death or disability, and further provided that this option shall not be exercisable after the Final Exercise Date. 

        (e)    Discharge for Cause.    If the Participant, prior to the Final Exercise Date, is discharged by the Company for
"cause" (as defined below), the right to exercise this option shall terminate immediately upon the effective date of such discharge. "Cause" shall mean willful misconduct by the Participant or willful
failure by the Participant to perform his or her responsibilities to the Company (including, without limitation, breach by the Participant of any provision of any employment, consulting, advisory,
nondisclosure, non-competition or other similar agreement between the Participant and the Company), as determined by the Company, which determination shall be conclusive. The Participant
shall be considered to have been discharged for "Cause" if the Company determines, within 30 days after the Participant's resignation, that discharge for cause was warranted. 

4.    Right of First Refusal.    

        (a)   If
the Participant proposes to sell, assign, transfer, pledge, hypothecate or otherwise dispose of, by operation of law or otherwise (collectively, "transfer") any
Shares acquired upon exercise of this option, then the Participant shall first give written notice of the proposed transfer (the "Transfer Notice") to the Company. The Transfer Notice shall name the
proposed transferee and state the number of such Shares the Participant proposes to transfer (the "Offered Shares"), the price per share and all other material terms and conditions of the transfer. 

        (b)   For
30 days following its receipt of such Transfer Notice, the Company shall have the option to purchase all (but not less than all) of the Offered Shares at the
price and upon the terms set forth in the Transfer Notice. In the event the Company elects to purchase all of the Offered Shares, it shall give written notice of such election to the Participant
within such 30-day period. Within 10 days after his receipt of such notice, the Participant shall tender to the Company at its principal offices the certificate or certificates
representing the Offered Shares, duly endorsed in blank by the Participant or with duly endorsed stock powers attached thereto, all in a form suitable for transfer of the Offered Shares to the
Company. Promptly following receipt of such certificate or certificates, the Company shall deliver or mail to the Participant a check in payment of the purchase price for the Offered Shares;  provided that if the terms of payment set forth in the Transfer Notice were other than cash against delivery, the Company may pay for the Offered Shares
on the same terms and conditions as were set forth in the Transfer Notice; and provided further that any delay in making such payment shall not
invalidate the Company's exercise of its option to purchase the Offered Shares. 

        (c)   If
the Company does not elect to acquire all of the Offered Shares, the Participant may, within the 30-day period following the expiration of the option
granted to the Company under subsection (b) above, transfer the Offered Shares to the proposed transferee, provided that such transfer shall not
be on terms and conditions more favorable to the transferee than those contained in the Transfer Notice. Notwithstanding any of the above, all Offered Shares transferred pursuant to this
Section 4 shall remain subject to the right of first refusal set forth in this Section 4 and such 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 Section 4. 

        (d)   After
the time at which the Offered 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 Offered Shares or permit the Participant to exercise any of the privileges or rights of a stockholder with respect to such Offered
Shares, but shall, in so far as permitted by law, treat the Company as the owner of such Offered Shares. 

        (e)   The
following transactions shall be exempt from the provisions of this Section 4: 

        (1)   any
transfer of Shares to or for the benefit of the Participant's spouse, any of the Participant's or his or her spouse's parents, children, siblings, nieces, nephews or
grandchildren, or to a trust for his or her or their benefit; 

        (2)   any
transfer pursuant to an effective registration statement filed by the Company under the Securities Act of 1933, as amended (the "Securities Act"); and 

        (3)   the
sale of all or substantially all of the shares of capital stock of the Company (including pursuant to a merger or consolidation); 

provided, however, that in the case of a transfer pursuant to clause (1) above, such Shares shall
remain subject to the right of first refusal set forth in this Section 4 and such 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 Section 4. 

        (f)    The
Company may assign its rights to purchase Offered Shares in any particular transaction under this Section 4 to one or more persons or entities. 

        (g)   The
provisions of this Section 4 shall terminate upon the earlier of the following events: 

        (1)   the
closing of the sale of shares of Common Stock in an underwritten public offering pursuant to an effective registration statement filed by the Company under the
Securities Act; or 

        (2)   the
sale of all or substantially all of the capital stock, assets or business of the Company, by merger, consolidation, sale of assets or otherwise (other than a
transaction in which all or substantially all of the individuals and entities who were beneficial owners of the Common Stock immediately prior to such transaction beneficially own, directly or
indirectly, more than 50% of the outstanding securities entitled to vote generally in the election of directors of the resulting, surviving or acquiring corporation in such transaction). 

        (h)   The
Company shall not be required (a) to transfer on its books any of the Shares which shall have been sold or transferred in violation of any of the provisions
set forth in this Section 4, or (b) to treat as owner of such Shares or to pay dividends to any transferee to whom any such Shares shall have been so sold or transferred. 

        (i)    The
certificate representing Shares shall bear a legend substantially in the following form (in addition to, or in combination with, any legend required by applicable
federal and state securities laws and agreements relating to the transfer of the Company securities): 

	
	

The shares represented by this certificate are subject to a right of first refusal in favor of the Company, as provided in a certain stock option agreement with the Company.

5.    Agreement in Connection with Public Offering.    

        The
Participant agrees, in connection with the initial underwritten public offering of the Company's securities pursuant to a registration statement under the Securities Act,
(i) not to sell, make short sale of, loan, grant any options for the purchase of, or otherwise dispose of any shares of Common Stock held by the Participant (other than those shares included in
the offering) without the prior written consent of the Company or the underwriters managing such initial underwritten public offering of the Company's securities for a period of 180 days from
the effective date of such registration statement, and
(ii) to execute any agreement reflecting clause (i) above as may be requested by the Company or the managing underwriters at the time of such offering. 

6.    Investment Representations.    

        The
Participant understands and agrees that, as a condition to exercise of this option, the Participant will be required to make the representations, warranties and covenants contained
in the form of Exercise Notice attached hereto as Exhibit A, unless at the time of exercise the Shares issuable upon exercise are covered by an
effective registration statement. 

7.    Nontransferability of Option.    

        This
option may not be sold, assigned, transferred, pledged or otherwise encumbered by the Participant, either voluntarily or by operation of law, except by will or the laws of descent
and distribution, and, during the lifetime of the Participant, this option shall be exercisable only by the Participant. 

8.    Tax Matters; Withholding.    

        No
Shares will be issued pursuant to the exercise of this option unless and until the Participant pays to the Company, or makes provision satisfactory to the Company for payment of, any
federal, state or local withholding taxes required by law to be withheld in respect of this option. 

9.    Notices.    

        Any
notice hereunder shall be in writing and shall be deemed to have been duly given when mailed by first class mail, or delivered by hand, (i) if to the Company, to its principal
executive office, 

attention:
President; and (ii) if to the Participant, to the address of the Participant listed in the record books of the Company. 

10.    Provisions of the Plan.    

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

[Remainder
of page is intentionally left blank] 

        IN
WITNESS WHEREOF, the Company has caused this option to be executed under its corporate seal by its duly authorized officer. This option shall take effect as a sealed instrument. 

							
	 	 	 	 	A123 SYSTEMS, INC.
	

Dated:	
 	

	
 	

By:	
 	

	 	 	 	 	Name:	 	Michael Rubino
	 	 	 	 	Title:	 	CFO

Vice President, Finance & Adm.

PARTICIPANT'S
ACCEPTANCE 

        The
undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company's 2001 Stock
Incentive Plan. 

					
	 	 	PARTICIPANT:
	

 	
 	

 
	

 	
 	

NAME:	
 	

 
	

 	
 	

Address:	
 	

 
	 	 	 	 	

 
	

 	
 	

 	
 	

 

 EXHIBIT A  

NOTICE OF STOCK OPTION EXERCISE

Date:                                    

A123
Systems, Inc.

Arsenal on the Charles

One Kingsbury Avenue

Watertown, MA 02472 

Attention:
Secretary 

Dear
Sir or Madam: 

        I
am the holder of a Nonstatutory Stock Option granted to me under the A123 Systems, Inc. (the "Company") 2001 Stock Incentive Plan
on                                    for the purchase of
                        shares of Common Stock of the Company at a purchase price of
$                        per share. 

        I
hereby exercise my option to
purchase                                    shares of Common Stock
(the "Shares"), for which I have enclosed [cash][personal
check][or if permitted by plan, stock certificates Nos.            and            ] in the amount of
[$                        ][or number of shares tendered]. Please register my stock certificate as follows: 

			
	Name(s) to appear on stock certificate:	 	 
	 	 	

 
	

 	
 	

 
	

Address:	
 	

 
	 	 	

 
	

Tax I.D. #:	
 	

 
	 	 	

 

I
represent, warrant and covenant as follows: 

        1.     I
am purchasing the Shares for my own account for investment only, and not with a view to, or for sale in connection with, any distribution of the Shares in violation of
the Securities Act of 1933 (the "Securities Act"), or any rule or regulation under the Securities Act. 

        2.     I
have had such opportunity as I have deemed adequate to obtain from representatives of the Company such information as is necessary to permit me to evaluate the merits
and risks of my investment in the Company. 

        3.     I
have sufficient experience in business, financial and investment matters to be able to evaluate the risks involved in the purchase of the Shares and to make an informed
investment decision with respect to such purchase. 

        4.     I
can afford a complete loss of the value of the Shares and am able to bear the economic risk of holding such Shares for an indefinite period. 

        5.     I
understand that (i) the Shares have not been registered under the Securities Act and are "restricted securities" within the meaning of Rule 144 under the
Securities Act, (ii) the Shares cannot be sold, transferred or otherwise disposed of unless they are subsequently registered under the Securities Act or an exemption from registration is then
available; (iii) in any event, the exemption from registration under Rule 144 will not be available for at least one year and even then will not be available unless a public market then
exists for the Common Stock, adequate information concerning the Company is then available to the public, and other terms and conditions of Rule 144 are complied with; and (iv) there is
now no registration statement on file with the Securities and Exchange Commission with respect to any stock of the Company and the Company has no obligation or current intention to register the Shares
under the Securities Act. 

Very
truly yours, 

			
	

(Signature)	 	 

QuickLinks

Exhibit 10.3

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