Effective Date. Employee understands that this Agreement shall be null and void if not executed by Employee within twenty-one (21) days. Employee has seven (7) days after Employee signs this Agreement to revoke it. This Agreement will become effective on the eighth (8th) day after Employee signed this Agreement, so long as it has been signed by the parties and has not been revoked by Employee before that date (the “Effective Date”).

Effective Date. The effective date of this Agreement shall be the eighth (8th) day after Employee signs and delivers it to the Company in accordance with Section 3 above, unless Employee revokes the Agreement before then in accordance with Section 4 above. If Employee fails to accept this Agreement in accordance with Section 3 above, or timely revokes the Agreement in accordance with Section 4 above, the Agreement will not become effective and will not be binding on Employee or the Company.

Employee is entitled to revoke this Agreement within seven (7) days after signing it, and this Agreement shall not become effective or enforceable until the seven day revocation period has expired;

Seven Day Revocation Period. Employee may revoke this Agreement at any time within seven (7) days after Employee returns a signed copy pursuant to Section 16. To revoke the Agreement, Employee must deliver written notification of such revocation to the attention of the CEO (or his delegate) within seven (7) days after the date that Employee signs this Agreement. Employee further understands that if Employee does not revoke the Agreement within seven (7) days following execution (excluding the date of execution), the Agreement will become effective and binding on the Parties, and fully enforceable by the Parties, as of the date of execution.

Employee shall have seven (7) days following his signing of this Agreement within which to revoke this Agreement. This Agreement shall not become effective or enforceable until the seven (7) day period following Employee’s signing this Agreement has expired. In order to revoke this Agreement, Employee must provide written notice to Company prior to midnight on the seventh day after Employee’s signature to validly rescind his acceptance of this Agreement. Such notice should be sent via first class mail and e-mail to:

•Employee understands that this Agreement will not become effective or enforceable until after the 7-day revocation period has expired. The Company will have no obligations to Employee under this Agreement if she revokes the Agreement during such 7-day period.

Effective Date. Executive has seven days after Executive signs this Agreement to revoke it and this Agreement will become effective on the eighth day following the date Executive signed this Agreement (the “Effective Date”).

If Employee signs this Agreement prior to the end of the consideration period, he has done so voluntarily and has seven (7) calendar days after executing this Agreement to revoke it by providing written notice of revocation either via email to [[Person A:Person]] at ​ or by overnight delivery to [[Person A:Person]] at 78 Blanchard Road, 4th Floor, Burlington, MA 02451 no later than 11:59 p.m. on the seventh (7th) calendar date after Employee has signed this Agreement. Employee further understand that if he revokes this Agreement, it shall be null and void and of no force or effect on either Employee or the Company. This Agreement is not effective or enforceable until after the seven (7)-day period expires without revocation (the “Effective Date”), and the Company’s promises under this Agreement will arise only after this time. Further, as detailed in [Section 15] below, the Company’s obligation to provide Employee with the benefits described in Section 2 of this Agreement will arise only after the Bring-Down Release Effective Date.

Revocation. Employee may revoke this Agreement at any time within seven (7) days after signing and delivering it to the Company by notifying the Company in writing (in the manner set forth in Section 12) of Employee’s decision to revoke. Time is of the essence with regard to this Section 4.