LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS

     Know all by these present, that the undersigned hereby
makes, constitutes and appoints each of Charlene Stern-Dombal,
Damien Grierson and Erica Iorio, signing singly and each
acting individually, as the undersigned's true and lawful
attorney-in-fact with full power and authority as hereinafter
described to:

      (1)     execute for and on behalf of the undersigned, in
the undersigned's capacity as a director, officer and/or
stockholder of Editas Medicine, Inc. (the "Company"), Forms 3, 4,
and 5 (including any amendments thereto) in accordance with
Section 16(a) of the Securities Exchange Act of 1934 and the
rules thereunder (the "Exchange Act");

      (2)     do and perform any and all acts for and on behalf
of the undersigned which may be necessary or desirable to
prepare, complete and execute any such Form 3, 4, or 5, prepare,
complete and execute any amendment or amendments thereto, and
timely deliver and file such form with the United States
Securities and Exchange Commission (the "SEC") and any stock
exchange or similar authority, including without limitation the
filing of a Form ID or any other application materials to enable
the undersigned to gain or maintain access to the Electronic Data
Gathering, Analysis and Retrieval system of the SEC;

      (3)     seek or obtain, as the undersigned's representative
and on the undersigned's behalf, information regarding
transactions in the Company's securities from any third party,
including brokers, employee benefit plan administrators and
trustees, and the undersigned hereby authorizes any such third
party to release any such information to the herein appointed
attorney-in-fact and approves and ratifies any such release of
information; and

      (4)     take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of such
attorney-in-fact, may be of benefit to, in the best interest of,
or legally required by, the undersigned, it being understood that
the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such
form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact's
discretion.

     The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform any and every act and
thing whatsoever requisite, necessary, or proper to be done in
the exercise of any of the rights and powers herein granted, as
fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution
or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of
this power of attorney and the rights and powers herein granted.
The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of
the undersigned, are not assuming nor relieving, nor is the
Company assuming nor relieving, any of the undersigned's
responsibilities to comply with Section 16 of the Exchange Act.
The undersigned acknowledges that neither the Company nor the
foregoing attorneys-in-fact assume (i) any liability for the
undersigned's responsibility to comply with the requirement of
the Exchange Act, (ii) any liability of the undersigned for any
failure to comply with such requirements, or (iii) any obligation
or liability of the undersigned for profit disgorgement under
Section 16(b) of the Exchange Act.

     This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 3, 4,
and 5 with the SEC with respect to the undersigned's holdings of
and transactions in securities issued by the Company, unless
earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.


     IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of the date set forth below.






/s/ Michelle Robertson

Print Name:  Michelle Robertson


Date: March 4, 2021