0001485003-18-000090.txt : 20180614 0001485003-18-000090.hdr.sgml : 20180614 20180614160725 ACCESSION NUMBER: 0001485003-18-000090 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20180612 FILED AS OF DATE: 20180614 DATE AS OF CHANGE: 20180614 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Celniker Abbie CENTRAL INDEX KEY: 0001590250 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36296 FILM NUMBER: 18899238 MAIL ADDRESS: STREET 1: C/O ELEVEN BIOTHERAPEUTICS, INC. STREET 2: 215 FIRST STREET, SUITE 400 CITY: CAMBRIDGE STATE: MA ZIP: 02142 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Sesen Bio, Inc. CENTRAL INDEX KEY: 0001485003 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 262025616 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 245 FIRST STREET STREET 2: SUITE 1800 CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-444-8550 MAIL ADDRESS: STREET 1: 245 FIRST STREET STREET 2: SUITE 1800 CITY: CAMBRIDGE STATE: MA ZIP: 02142 FORMER COMPANY: FORMER CONFORMED NAME: Eleven Biotherapeutics, Inc. DATE OF NAME CHANGE: 20100223 4 1 wf-form4_152900682843577.xml FORM 4 X0306 4 2018-06-12 0 0001485003 Sesen Bio, Inc. SESN 0001590250 Celniker Abbie C/O SESEN BIO, INC. 245 FIRST STREET, SUITE 1800 CAMBRIDGE MA 02142 1 0 0 0 Stock Option 2.24 2018-06-12 4 A 0 52500 0 A 2028-06-11 Common Stock 52500.0 52500 D The option was granted on June 12, 2018 and vests over one year, with 1/12th of the shares subject to the option vesting at the end of each successive one-month period following the grant date until the earlier of a) the day that is one business day prior to the date of the next annual meeting and b) the first anniversary of the grant date, at which time such option shall be fully vested. Exhibit List: Exhibit 24 - Power of Attorney /s/ Richard F. Fitzgerald as attorney-in-fact 2018-06-14 EX-24 2 ex-24.htm ABBIE CELNIKER POA

LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS
Know all by these presents, that the undersigned hereby makes, constitutes and appoints the Chief Executive Officer, Chief Financial Officer and Controller of Sesen Bio, Inc., a Delaware corporation (the "Company"), 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 an officer and/or director of, and/or holder of equity in, 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 person to release any such information to such 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 requirements 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 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 this 14th day of June, 2018.


/s/ Abbie C. Celniker, Ph.D.
Abbie C. Celniker, Ph.D.