0001104659-23-008873.txt : 20230131 0001104659-23-008873.hdr.sgml : 20230131 20230131215016 ACCESSION NUMBER: 0001104659-23-008873 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230129 FILED AS OF DATE: 20230131 DATE AS OF CHANGE: 20230131 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Turka Laurence A. CENTRAL INDEX KEY: 0001800952 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38586 FILM NUMBER: 23574573 MAIL ADDRESS: STREET 1: C/O RUBIUS THERAPEUTICS, INC. STREET 2: 399 BINNEY ST., SUITE 300 CITY: CAMBRIDGE STATE: MA ZIP: 02139 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Rubius Therapeutics, Inc. CENTRAL INDEX KEY: 0001709401 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 042688109 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 399 BINNEY STREET, SUITE 300 CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 617-679-9600 MAIL ADDRESS: STREET 1: 399 BINNEY STREET, SUITE 300 CITY: CAMBRIDGE STATE: MA ZIP: 02139 4 1 tm235103-1_4seq1.xml OWNERSHIP DOCUMENT X0306 4 2023-01-29 0 0001709401 Rubius Therapeutics, Inc. RUBY 0001800952 Turka Laurence A. C/O RUBIUS THERAPEUTICS, INC. 399 BINNEY ST., SUITE 300 CAMBRIDGE MA 02139 0 1 0 0 Chief Scientific Officer Common Stock 2023-01-29 4 M 0 7438 A 12359 D Common Stock 2023-01-31 4 M 0 8625 A 20984 D Common Stock 2023-01-31 4 S 0 2593 0.24 D 18391 D Restricted Stock Units 2023-01-29 4 M 0 7438 0 D Common Stock 7438 14874 D Restricted Stock Units 2023-01-31 4 M 0 8625 0 D Common Stock 8625 25875 D Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. Represents the number of shares required to be sold to cover the statutory tax withholding obligations in connection with the vesting of the restricted stock units listed in Table II. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of minimum statutory tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary sale by the reporting person. The shares underlying the restricted stock units vest in four equal annual installments beginning on January 29, 2022. The shares underlying the restricted stock units vest in four equal annual installments beginning on January 31, 2023. Exhibit List - Exhibit 24 - Power of Attorney /s/ Jennifer Kamocsay, attorney-in-fact 2023-01-31 EX-24 2 tm235103d1_ex24.htm EXHIBIT 24

SUBSTITUTE POWER OF ATTORNEY

Pursuant to the terms of the Power of Attorney previously executed by Laurence A. Turka (the “PoA Party”) (as modified by the Substitute Power of Attorney previously executed by Joanne Protano, the “Power of Attorney”) , the undersigned, Jose Carmona, was appointed a true and lawful attorney-in-fact, with full power of substitution by certain officers and directors of Rubius Therapeutics, Inc. (the “Company”), including the PoA Party, 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 granted in the Power of Attorney, as fully to all intents and purposes as the PoA Party might or could do if personally present, with full power of substitution or revocation.

In accordance with the authority granted under the Power of Attorney, including the power of substitution, the undersigned, Jose Carmona, hereby appoints each of Jennifer Kamocsay and Jaimy Mauricio as a substitute attorney-in-fact, on behalf of the PoA Party, to exercise and execute all of the powers granted or conferred in the applicable Power of Attorney. By his or her signature as an attorney-in-fact to this Substitute Power of Attorney, each of Jennifer Kamocsay and Jaimy Mauricio accepts such appointment and agrees to assume from the undersigned any and all duties and responsibilities attendant to his or her capacity as an attorney-in-fact. This Substitute Power of Attorney shall remain in full force and effect until the earlier of (i) such time as this Substitute Power of Attorney is revoked by the undersigned, Jose Carmona, or by the PoA Party, (ii) such time as this Substitute Power of Attorney is superseded by a new substitute power of attorney regarding the purposes outlined herein dated as of a later date, or (iii) such time as the PoA Party is no longer required to file any Form 3, 4 or 5, Schedule 13D, Schedule 13G or any amendments thereto with respect to such PoA Party’s holdings of and transactions in securities issued by the Company.

IN WITNESS WHEREOF, the undersigned have executed this Substitute Power of Attorney this 15^th day of November, 2022.

	/s/ Jose Carmona
	Jose Carmona
	Attorney-in-Fact

I accept this appointment and substitution:

	/s/ Jennifer Kamocsay
	Jennifer Kamocsay
I accept this appointment and substitution:

	/s/ Jaimy Mauricio
	Jaimy Mauricio