0000899243-21-030775.txt : 20210729 0000899243-21-030775.hdr.sgml : 20210729 20210729210525 ACCESSION NUMBER: 0000899243-21-030775 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210729 FILED AS OF DATE: 20210729 DATE AS OF CHANGE: 20210729 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flagship Pioneering Inc. CENTRAL INDEX KEY: 0001400240 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40657 FILM NUMBER: 211129619 BUSINESS ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY, SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617 868-1888 MAIL ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY, SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 FORMER NAME: FORMER CONFORMED NAME: Flagship Ventures Management, Inc. DATE OF NAME CHANGE: 20070522 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flagship Ventures Fund V, L.P. CENTRAL INDEX KEY: 0001627639 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40657 FILM NUMBER: 211129616 BUSINESS ADDRESS: STREET 1: ONE MEMORIAL DRIVE, 7TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-868-1888 MAIL ADDRESS: STREET 1: ONE MEMORIAL DRIVE, 7TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flagship Ventures Fund V General Partner LLC CENTRAL INDEX KEY: 0001724575 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40657 FILM NUMBER: 211129618 BUSINESS ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY STREET 2: SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-868-1888 MAIL ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY STREET 2: SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flagship V VentureLabs Rx Fund, L.P. CENTRAL INDEX KEY: 0001724939 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40657 FILM NUMBER: 211129617 BUSINESS ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY STREET 2: SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-868-1888 MAIL ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY STREET 2: SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flagship VentureLabs V LLC CENTRAL INDEX KEY: 0001724959 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40657 FILM NUMBER: 211129614 BUSINESS ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY STREET 2: SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-868-1888 MAIL ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY STREET 2: SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Flagship VentureLabs V Manager LLC CENTRAL INDEX KEY: 0001768987 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40657 FILM NUMBER: 211129615 BUSINESS ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY, SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617-868-1888 MAIL ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY, SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Omega Therapeutics, Inc. CENTRAL INDEX KEY: 0001850838 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 20 ACORN PARK DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02140 BUSINESS PHONE: (617) 949-4360 MAIL ADDRESS: STREET 1: 20 ACORN PARK DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02140 3 1 doc3.xml FORM 3 SUBMISSION X0206 3 2021-07-29 0 0001850838 Omega Therapeutics, Inc. OMGA 0001400240 Flagship Pioneering Inc. 55 CAMBRIDGE PARKWAY, SUITE 800 CAMBRIDGE MA 02142 1 0 1 0 0001724575 Flagship Ventures Fund V General Partner LLC 55 CAMBRIDGE PARKWAY, SUITE 800E CAMBRIDGE MA 02142 0 0 1 0 0001724939 Flagship V VentureLabs Rx Fund, L.P. 55 CAMBRIDGE PARKWAY, SUITE 800 CAMBRIDGE MA 02142 0 0 1 0 0001627639 Flagship Ventures Fund V, L.P. 55 CAMBRIDGE PARKWAY, SUITE 800 CAMBRIDGE MA 02142 0 0 1 0 0001768987 Flagship VentureLabs V Manager LLC 55 CAMBRIDGE PARKWAY, SUITE 800 CAMBRIDGE MA 02142 0 0 1 0 0001724959 Flagship VentureLabs V LLC 55 CAMBRIDGE PARKWAY, SUITE 800 CAMBRIDGE MA 02142 0 0 1 0 Common Stock 2197059 I See Footnotes Series A Convertible Preferred Stock Common Stock 1088470 I See Footnotes Series A Convertible Preferred Stock Common Stock 5896386 I See Footnotes Series A Convertible Preferred Stock Common Stock 7249767 I See Footnotes Series A Convertible Preferred Stock Common Stock 794118 I See Footnotes Series B Convertible Preferred Stock Common Stock 705882 I See Footnotes Series B Convertible Preferred Stock Common Stock 176470 I See Footnotes Series B Convertible Preferred Stock Common Stock 3529413 I See Footnotes Series B Convertible Preferred Stock Common Stock 882353 I See Footnotes Series C Convertible Preferred Stock Common Stock 441176 I See Footnotes Series C Convertible Preferred Stock Common Stock 1323530 I See Footnotes Series C Convertible Preferred Stock Common Stock 441176 I See Footnotes Represents shares held directly by Flagship VentureLabs V, LLC ("VentureLabs V"). The shares of Issuer's preferred stock have no expiration date and are convertible at the holder's election into Issuer's common stock at a conversion ratio of 1-to-0.264706. The preferred stock will automatically convert into shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering. Represents shares held directly by Flagship V VentureLabs Rx Fund, L.P. ("Flagship Fund V Rx"). Represents shares held directly by Flagship Ventures Fund V, L.P. ("Flagship Fund V"). Represents shares held directly by Flagship Pioneering Fund VI, L.P. ("Flagship Pioneering VI"). Represents shares held directly by Nutritional Health LTP Fund, L.P. ("Nutritional LTP"). Represents shares held directly by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Represents shares held directly by FPN, L.P. ("FPN Fund"). Flagship Fund V is a member of VentureLabs V. VentureLabs V Manager LLC ("VentureLabs V Manager") is the manager of VentureLabs V. Flagship Pioneering, Inc. ("Flagship Pioneering") is the manager of VentureLabs V Manager. The General Partner of Flagship Fund V and Flagship Fund V Rx is Flagship Ventures Fund V General Partner LLC ("Flagship V GP"). The General Partner of Flagship Pioneering VI is Flagship Pioneering Fund VI General Partner LLC ("Flagship Pioneering VI GP"). The General Partner of Flagship Opportunities Fund II is Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP"). (continued from above) The general partner of FPN Fund is FPN General Partner LLC ("FPN GP"). The manager of Flagship Pioneering VI GP, Flagship Opportunities Fund II GP, and FPN GP is Flagship Pioneering. The general partner of Nutritional LTP is Nutritional Health LTP Fund General Partner LLC ("Nutritional LTP GP" and, together with VentureLabs V Manager, Flagship Pioneering, Flagship V GP, Flagship Pioneering VI GP, Flagship Opportunities Fund II GP and FPN GP, the "Flagship General Partners"). (continued from above) Noubar B. Afeyan, Ph.D. ("Dr. Afeyan") is the sole director of Flagship Pioneering and may be deemed to have beneficial ownership of all the shares held by VentureLabs V, Flagship Pioneering VI, Flagship Opportunities Fund II and FPN Fund. In addition, Dr. Afeyan serves as the sole manager of Flagship V GP and is the sole member and manager of Nutritional LTP GP and may be deemed to have beneficial ownership of all the shares held by Flagship Fund V, Flagship Fund V Rx and Nutritional LTP. None of the Flagship General Partners nor Dr. Afeyan directly own any of the shares held by the Flagship Funds, and each of the Flagship General Partners and Dr. Afeyan disclaims beneficial ownership of such shares except to the extent of its or his pecuniary interest therein. Due to the limitations of the electronic filing system, each of Flagship Pioneering Fund VI General Partner LLC, Flagship Pioneering Fund VI, L.P., Flagship Pioneering Special Opportunities Fund II, L.P., Flagship Pioneering Special Opportunities Fund II General Partner LLC, Nutritional Health LTP Fund, L.P., Nutritional Health LTP Fund General Partner LLC, FPN General Partner LLC, FPN, L.P. and Noubar Afeyan are filing a separate Form 3. Each Form 3 will be filed by Designated Filer Flagship Pioneering, Inc. Flagship Pioneering, Inc., By: /s/ Noubar B. Afeyan, Director 2021-07-29 Flagship Ventures Fund V General Partner LLC, By: /s/ Noubar B. Afeyan, Ph.D., Manager 2021-07-29 Flagship V VentureLabs Rx Fund, L.P., By: Flagship Ventures Fund V General Partner LLC, its General Partner, By: /s/ Noubar B. Afeyan, Ph.D., Manager 2021-07-29 Flagship Ventures Fund V, L.P., By: Flagship Ventures Fund V General Partner LLC, its General Partner, By: /s/ Noubar B. Afeyan, Ph.D., Manager 2021-07-29 Flagship VentureLabs V Manager LLC, By: Flagship Pioneering, Inc., its Manager, By: /s/ Noubar B. Afeyan, Ph.D., Director 2021-07-29 Flagship VentureLabs V LLC., By: Flagship VentureLabs V Manager LLC, its Manager, By: Flagship Pioneering, Inc., its Manager, By: /s/ Noubar B. Afeyan, Ph.D., Director 2021-07-29