0001959173-26-003128.txt : 20260429 0001959173-26-003128.hdr.sgml : 20260429 20260429152641 ACCESSION NUMBER: 0001959173-26-003128 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20260429 DATE AS OF CHANGE: 20260429 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Sensei Biotherapeutics, Inc. CENTRAL INDEX KEY: 0001829802 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-39980 FILM NUMBER: 26915032 BUSINESS ADDRESS: STREET 1: 1405 RESEARCH BLVD, SUITE 125 CITY: ROCKVILLE STATE: MD ZIP: 20850 BUSINESS PHONE: (240) 243-8000 MAIL ADDRESS: STREET 1: 1405 RESEARCH BLVD, SUITE 125 CITY: ROCKVILLE STATE: MD ZIP: 20850 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Cambrian BioPharma Inc CENTRAL INDEX KEY: 0001797409 ORGANIZATION NAME: EIN: 842985609 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 BUSINESS ADDRESS: STREET 1: 228 PARK AVENUE S. STREET 2: #66643 CITY: NEW YORK STATE: NY ZIP: 10003 BUSINESS PHONE: (516) 962-3186 MAIL ADDRESS: STREET 1: 228 PARK AVENUE S. STREET 2: #66643 CITY: NEW YORK STATE: NY ZIP: 10003 FORMER COMPANY: FORMER CONFORMED NAME: Cambrian BioPharma Inc. DATE OF NAME CHANGE: 20191219 144 1 primary_doc.xml 144 0001797409 XXXXXXXX LIVE 0001829802 Sensei Biotherapeutics, Inc. 001-39980 1405 RESEARCH BLVD, SUITE 125 ROCKVILLE MD 20850 (240) 243-8000 Cambrian BioPharma Inc 10% Stockholder Common Fidelity Brokerage Services LLC

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155142 4956786.00 1340281 04/29/2026 NASDAQ Common 01/10/2020 Private Placement Issuer N 155142 01/10/2020 Cash/Check Y 04/29/2026 /s/ Daniel Gardea as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Cambrian BioPharma Inc.