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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000899243-21-030775
Filing Date
2021-07-29
Accepted
2021-07-29 21:05:25
Documents
1
Period of Report
2021-07-29

Document Format Files

Seq Description Document Type Size
1 FORM 3 SUBMISSION doc3.html 3  
1 FORM 3 SUBMISSION doc3.xml 3 26498
  Complete submission text file 0000899243-21-030775.txt   30875
Mailing Address 55 CAMBRIDGE PARKWAY, SUITE 800E CAMBRIDGE MA 02142
Business Address 55 CAMBRIDGE PARKWAY, SUITE 800E CAMBRIDGE MA 02142 617 868-1888
Flagship Pioneering Inc. (Reporting) CIK: 0001400240 (see all company filings)

State of Incorp.: DE
Type: 3 | Act: 34 | File No.: 001-40657 | Film No.: 211129619

Mailing Address ONE MEMORIAL DRIVE, 7TH FLOOR CAMBRIDGE MA 02142
Business Address ONE MEMORIAL DRIVE, 7TH FLOOR CAMBRIDGE MA 02142 617-868-1888
Flagship Ventures Fund V, L.P. (Reporting) CIK: 0001627639 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40657 | Film No.: 211129616

Mailing Address 55 CAMBRIDGE PARKWAY SUITE 800E CAMBRIDGE MA 02142
Business Address 55 CAMBRIDGE PARKWAY SUITE 800E CAMBRIDGE MA 02142 617-868-1888
Flagship Ventures Fund V General Partner LLC (Reporting) CIK: 0001724575 (see all company filings)

State of Incorp.: DE
Type: 3 | Act: 34 | File No.: 001-40657 | Film No.: 211129618

Mailing Address 55 CAMBRIDGE PARKWAY SUITE 800E CAMBRIDGE MA 02142
Business Address 55 CAMBRIDGE PARKWAY SUITE 800E CAMBRIDGE MA 02142 617-868-1888
Flagship V VentureLabs Rx Fund, L.P. (Reporting) CIK: 0001724939 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-40657 | Film No.: 211129617

Mailing Address 55 CAMBRIDGE PARKWAY SUITE 800E CAMBRIDGE MA 02142
Business Address 55 CAMBRIDGE PARKWAY SUITE 800E CAMBRIDGE MA 02142 617-868-1888
Flagship VentureLabs V LLC (Reporting) CIK: 0001724959 (see all company filings)

State of Incorp.: DE
Type: 3 | Act: 34 | File No.: 001-40657 | Film No.: 211129614

Mailing Address 55 CAMBRIDGE PARKWAY, SUITE 800E CAMBRIDGE MA 02142
Business Address 55 CAMBRIDGE PARKWAY, SUITE 800E CAMBRIDGE MA 02142 617-868-1888
Flagship VentureLabs V Manager LLC (Reporting) CIK: 0001768987 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-40657 | Film No.: 211129615

Mailing Address 20 ACORN PARK DRIVE CAMBRIDGE MA 02140
Business Address 20 ACORN PARK DRIVE CAMBRIDGE MA 02140 (617) 949-4360
Omega Therapeutics, Inc. (Issuer) CIK: 0001850838 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)