0001209191-22-028170.txt : 20220510 0001209191-22-028170.hdr.sgml : 20220510 20220510193221 ACCESSION NUMBER: 0001209191-22-028170 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220509 FILED AS OF DATE: 20220510 DATE AS OF CHANGE: 20220510 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Haurwitz Rachel E. CENTRAL INDEX KEY: 0001670579 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40631 FILM NUMBER: 22911643 MAIL ADDRESS: STREET 1: C/O CARIBOU BIOSCIENCES, INC. STREET 2: 2929 7TH STREET, SUITE 105 CITY: BERKELEY STATE: CA ZIP: 94710 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Caribou Biosciences, Inc. CENTRAL INDEX KEY: 0001619856 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 453728228 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2929 7TH STREET, SUITE 105 CITY: BERKELEY STATE: CA ZIP: 94710 BUSINESS PHONE: 510-982-6030 MAIL ADDRESS: STREET 1: 2929 7TH STREET, SUITE 105 CITY: BERKELEY STATE: CA ZIP: 94710 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2022-05-09 0 0001619856 Caribou Biosciences, Inc. CRBU 0001670579 Haurwitz Rachel E. C/O CARIBOU BIOSCIENCES, INC. 2929 7TH STREET, SUITE 105 BERKELEY CA 94710 1 1 0 0 President and CEO Common Stock 2022-05-09 4 M 0 10000 2.96 A 20000 D Common Stock 3349395 I By Trust Option to purchase Common Stock 2.96 2022-05-09 4 M 0 10000 0.00 D 2023-06-11 Common Stock 10000 116350 D Due to a rounding error, the exercise price for this stock option was inadvertently originally reported as $2.95 per share on the reporting person's Form 3 filed on July 22, 2021. Shares are held by The City Canyon Trust Dated May 31, 2021, of which the reporting person is a Co-Trustee with her spouse. 1/4th of the shares subject to this option vested on June 12, 2019 and an additional 1/48th of the aggregate number of shares subject to this option have vested or will vest on the corresponding day of each month thereafter until the option is fully vested on June 12, 2022, subject to the reporting person's continued service to the Issuer through the applicable vesting dates. /s/ Barbara G. McClung, as attorney-in-fact 2022-05-10