0001209191-19-009858.txt : 20190213 0001209191-19-009858.hdr.sgml : 20190213 20190213183725 ACCESSION NUMBER: 0001209191-19-009858 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190213 FILED AS OF DATE: 20190213 DATE AS OF CHANGE: 20190213 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MPM SunStates GP Managing Member LLC CENTRAL INDEX KEY: 0001765023 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38811 FILM NUMBER: 19599698 BUSINESS ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-425-9200 MAIL ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MPM SunStates Fund GP LLC CENTRAL INDEX KEY: 0001765026 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38811 FILM NUMBER: 19599699 BUSINESS ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-425-9200 MAIL ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MPM Asset Management Investors SunStates Fund LLC CENTRAL INDEX KEY: 0001765025 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38811 FILM NUMBER: 19599700 BUSINESS ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-425-92-- MAIL ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MPM SunStates Fund, L.P. CENTRAL INDEX KEY: 0001765022 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38811 FILM NUMBER: 19599701 BUSINESS ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-425-9200 MAIL ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: TCR2 THERAPEUTICS INC. CENTRAL INDEX KEY: 0001750019 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 474152751 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 100 BINNEY STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-949-5200 MAIL ADDRESS: STREET 1: 100 BINNEY STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 3 1 doc3.xml FORM 3 SUBMISSION X0206 3 2019-02-13 0 0001750019 TCR2 THERAPEUTICS INC. TCRR 0001765022 MPM SunStates Fund, L.P. C/O MPM CAPITAL 450 KENDALL STREET CAMBRIDGE MA 02142 0 0 1 0 0001765025 MPM Asset Management Investors SunStates Fund LLC C/O MPM CAPITAL 450 KENDALL STREET CAMBRIDGE MA 02142 0 0 1 0 0001765026 MPM SunStates Fund GP LLC C/O MPM CAPITAL 450 KENDALL STREET CAMBRIDGE MA 02142 0 0 1 0 0001765023 MPM SunStates GP Managing Member LLC MPM CAPITAL 450 KENDALL STREET CAMBRIDGE MA 02142 0 0 1 0 Common Stock 195902 I See footnote Series A Preferred Stock 0.00 Common Stock 2825396 I See footnote Series B Preferred Stock 0.00 Common Stock 322901 I See footnote Common Stock Warrant (Right to Buy) 0.74 2016-12-13 2026-12-12 Common Stock 42761 I See footnote Common Stock Warrant (Right to Buy) 0.74 2017-12-06 2027-12-05 Common Stock 135508 I See footnote The shares are held by MPM Asset Management LLC ("AM LLC"). Luke Evnin and Anbsert Gadicke are the members of AM LLC. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein. Each share of Series A Preferred Stock and Series B Preferred Stock is convertible into shares of the Issuer's Common Stock on a 6.1938:1 basis. Upon the closing of the Issuer's initial public offering, all shares of Series A Preferred Stock and Series B Preferred Stock will convert into shares of Common Stock of the Issuer. The Series A Preferred Stock and Series B Preferred Stock have no expiration dates. The shares are held as follows: 2,195,681 by MPM BioVentures 2014, L.P. ("BV 2014"), 146,447 by MPM BioVentures 2014(B), L.P. ("BV 2014(B)"), 79,644 by MPM Asset Management Investors BV2014 LLC ("AM BV2014"), 351,155 by MPM Sunstates Fund, L.P. ("MPM SunStates") and 52,469 by MPM Asset Management Investors Sunstates Fund LLC ("AM SunStates"). MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). MPM SunStates Fund GP LLC and MPM SunStates GP Managing Member LLC ("SunStates GP") are the direct and indirect general partners of MPM SunStates. Luke Evnin, Ansbert Gadicke and Todd Foley are the members of BV LLC and Ansbert Gadicke is a member of SunStates GP. The shares are held as follows: 256,163 by BV 2014, 17,085 by BV 2014(B), 9,291 by AM BV2014, 35,115 by MPM SunStates and 5,247 by AM SunStates. The warrants are held by AM LLC. See Form 3 for MPM BioVentures 2014, L.P for additional members of this joint filing. /s/ Ansbert Gadicke, member of MPM Sunstates GP Managing Member LLC, the managing member of MPM SunStates Fund GP LLC, the general partner of MPM SunStates Fund, L.P. 2019-02-13 /s/ Howard Rubin, director of MPM Asset Management Investors SunStates Fund LLC 2019-02-13 /s/ Ansbert Gadicke, member of MPM SunStates GP Managing Member LLC, the managing member of MPM SunStates Fund GP LLC 2019-02-13 /s/ Ansbert Gadicke, member of MPM SunStates GP Managing Member LLC 2019-02-13