Flagship V VentureLabs Rx Fund, L.P. - Feb 3, 2025 Form SCHEDULE 13D/A Schedule Report for OMEGA THERAPEUTICS, INC. (OMGAQ)

Filing Manager
Flagship V VentureLabs Rx Fund, L.P.
Reporting Manager
Noubar Afeyan
Security
OMEGA THERAPEUTICS, INC. Common Stock, $0.001 par value per share
Symbol
OMGAQ
Shares outstanding
55.4M shares
Disclosed Ownership
29.2M shares
Ownership
52.8%
Form type
SCHEDULE 13D/A
Date filed
2/5/2025, 04:40 PM
Date of event
Feb 3, 2025
SEC
View on sec.gov

Reporting Managers (17)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Flagship V VentureLabs Rx Fund, L.P. 2% 1.09M 0 1.09M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Manager of General Partner 0001724939
Flagship Ventures Fund V, L.P. 10.6% 5.9M 0 5.9M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Manager of General Partner 0001627639
Flagship Ventures Fund V General Partner LLC 12.6% 6.98M 0 6.98M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager of General Partner 0001724575
Flagship Pioneering Fund VI, L.P. 15.6% 8.62M 0 8.62M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager of General Partner 0001716926
Flagship Pioneering Fund VI General Partner LLC 15.6% 8.62M 0 8.62M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager of General Partner 0001724957
Nutritional Health LTP Fund, L.P. 1.8% 971K 0 971K /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager of General Partner 0001780956
Nutritional Health LTP Fund General Partner LLC 1.8% 971K 0 971K /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager of General Partner 0001780951
Flagship Pioneering Special Opportunities Fund II, L.P. 13.6% 7.51M 0 7.51M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager of General Partner 0001760283
Flagship Pioneering Special Opportunities Fund II General Partner LLC 13.6% 7.51M 0 7.51M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Manager 0001826217
FPN, L.P. 2.9% 1.62M 0 1.62M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager 0001860062
FPN General Partner LLC 2.9% 1.62M 0 1.62M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager 0001860059
Flagship VentureLabs V, LLC 4% 2.2M 0 2.2M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager 0001724959
Flagship VentureLabs V Manager LLC 4% 2.2M 0 2.2M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager 0001768987
Flagship Pioneering Fund VII, L.P. 2.4% 1.33M 0 1.33M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager 0001805916
Flagship Pioneering Fund VII General Partner LLC 2.4% 1.33M 0 1.33M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer of Manager 0001805917
Flagship Pioneering, Inc. 40.2% 22.2M 0 22.2M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D., Chief Executive Officer 0001400240
Noubar Afeyan 52.8% 29.2M 0 29.2M /s/ Noubar B. Afeyan, Ph.D. Noubar B. Afeyan, Ph.D. 0001222012