0001209191-23-042720.txt : 20230719 0001209191-23-042720.hdr.sgml : 20230719 20230719145437 ACCESSION NUMBER: 0001209191-23-042720 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230717 FILED AS OF DATE: 20230719 DATE AS OF CHANGE: 20230719 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Tananbaum James B. CENTRAL INDEX KEY: 0001581754 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40869 FILM NUMBER: 231096470 MAIL ADDRESS: STREET 1: 3052 PACIFIC AVENUE CITY: SAN FRANCISCO STATE: CA ZIP: 94115 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Foresite Capital Fund V, L.P. CENTRAL INDEX KEY: 0001792204 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40869 FILM NUMBER: 231096473 BUSINESS ADDRESS: STREET 1: 600 MONTGOMERY STREET, SUITE 4500 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 BUSINESS PHONE: 415-877-4887 MAIL ADDRESS: STREET 1: 600 MONTGOMERY STREET, SUITE 4500 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Foresite Capital Opportunity Management V, LLC CENTRAL INDEX KEY: 0001792207 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40869 FILM NUMBER: 231096471 BUSINESS ADDRESS: STREET 1: 900 LARKSPUR LANDING CIRCLE, SUITE 150 CITY: LARKSPUR STATE: CA ZIP: 94939 BUSINESS PHONE: 415-877-4887 MAIL ADDRESS: STREET 1: 900 LARKSPUR LANDING CIRCLE, SUITE 150 CITY: LARKSPUR STATE: CA ZIP: 94939 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Foresite Capital Opportunity Fund V, L.P. CENTRAL INDEX KEY: 0001792205 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40869 FILM NUMBER: 231096472 BUSINESS ADDRESS: STREET 1: 600 MONTGOMERY STREET, SUITE 4500 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 BUSINESS PHONE: 415-877-4887 MAIL ADDRESS: STREET 1: 600 MONTGOMERY STREET, SUITE 4500 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Foresite Capital Management V, LLC CENTRAL INDEX KEY: 0001792206 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40869 FILM NUMBER: 231096474 BUSINESS ADDRESS: STREET 1: 900 LARKSPUR LANDING CIRCLE, SUITE 150 CITY: LARKSPUR STATE: CA ZIP: 94939 BUSINESS PHONE: 415-877-4887 MAIL ADDRESS: STREET 1: 900 LARKSPUR LANDING CIRCLE, SUITE 150 CITY: LARKSPUR STATE: CA ZIP: 94939 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Theseus Pharmaceuticals, Inc. CENTRAL INDEX KEY: 0001745020 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 830712806 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 314 MAIN STREET, SUITE 04-200 CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: (857) 400-9491 MAIL ADDRESS: STREET 1: 314 MAIN STREET, SUITE 04-200 CITY: CAMBRIDGE STATE: MA ZIP: 02142 4 1 doc4.xml FORM 4 SUBMISSION X0508 4 2023-07-17 0 0001745020 Theseus Pharmaceuticals, Inc. THRX 0001792206 Foresite Capital Management V, LLC 900 LARKSPUR LANDING CIRCLE SUITE 150 LARKSPUR CA 94939 0 0 1 0 0001792204 Foresite Capital Fund V, L.P. 900 LARKSPUR LANDING CIRCLE SUITE 150 LARKSPUR CA 94939 0 0 1 0 0001792205 Foresite Capital Opportunity Fund V, L.P. 900 LARKSPUR LANDING CIRCLE SUITE 150 LARKSPUR CA 94939 0 0 1 0 0001792207 Foresite Capital Opportunity Management V, LLC 900 LARKSPUR LANDING CIRCLE SUITE 150 LARKSPUR CA 94939 0 0 1 0 0001581754 Tananbaum James B. 900 LARKSPUR LANDING CIRCLE SUITE 150 LARKSPUR CA 94939 0 0 1 0 0 Common Stock 2023-07-17 4 P 0 523450 2.97 A 4108796 I See Footnote Common Stock 2023-07-17 4 P 0 176550 2.97 A 1385825 I See Footnote The shares are owned directly by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over these shares. James B. Tananbaum ("Dr. Tananbaum") is the sole managing member of FCM V and may be deemed to have sole voting and dispositive power over these shares. Each Reporting Person disclaims the existence of a "group." Each of FCM V and Dr. Tananbaum disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that FCM V or Dr. Tananbaum is the beneficial owner of these shares for purposes of Section 16 or any other purpose. The shares are owned directly by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over these shares. Dr. Tananbaum is the sole managing member of FCOM V and may be deemed to have sole voting and dispositive power over these shares. Each Reporting Person disclaims the existence of a "group." Each of FCOM V and Dr. Tananbaum disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein, and the filing of this report is not an admission that FCOM V or Dr. Tananbaum is the beneficial owner of these shares for purposes of Section 16 or any other purpose. FORESITE CAPITAL MANAGEMENT V, LLC, By: /s/ James B. Tananbaum, Managing Member 2023-07-19 FORESITE CAPITAL FUND V, L.P., By: Foresite Capital Management V, LLC, Its: General Partner, By: /s/ James B. Tananbaum, Managing Member 2023-07-19 FORESITE CAPITAL OPPORTUNITY FUND V, L.P., By: Foresite Capital Opportunity Management V, LLC, Its: General Partner, By: /s/ James B. Tananbaum, Managing Member 2023-07-19 FORESITE CAPITAL OPPORTUNITY MANAGEMENT V, LLC, By: /s/ James B. Tananbaum, Managing Member 2023-07-19 JAMES B. TANANBAUM /s/ James B. Tananbaum 2023-07-19