Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Generate Biomedicines, Inc.GENB · Entity 1553 | 10% owner | February 26, 2026 | March 02, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Generate Biomedicines, Inc.
Report date February 26, 2026 · Filed March 02, 2026
Jointly reported with Afeyan Noubar, Flagship VentureLabs VI LLC, Flagship Pioneering Fund VI, L.P., Flagship Pioneering Fund VII, L.P., Nutritional Health LTP Fund, L.P., Flagship Pioneering Special Opportunities Fund II, L.P.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | IndirectBy Flagship Pioneering Fund VI, L.P. | 12,723,940 |
Reported balance
After 2026-03-02 transaction · row 1
Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source rowRow 1 · 2026-03-02 · Conversion · Acquired 12,723,940 · Balance 12,723,940 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F2: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date. |
| Common StockSEC Table I · non-derivative | IndirectBy Flagship Pioneering Fund VII, L.P. | 15,264,724 |
Last balance in matching sequence
After 2026-03-02 transaction · row 6
Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rowsRow 2 · 2026-03-02 · Conversion · Acquired 13,702,224 · Balance 13,702,224 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Row 6 · 2026-03-02 · Purchase · Acquired 1,562,500 · Balance 15,264,724 F3: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Common StockSEC Table I · non-derivative | IndirectBy Nutritional Health LTP Fund, L.P. | 987,491 |
Reported balance
After 2026-03-02 transaction · row 3
Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source rowRow 3 · 2026-03-02 · Conversion · Acquired 987,491 · Balance 987,491 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F4: Securities held by Nutritional Health LTP Fund, L.P. ("Nutritional LTP"). Nutritional Health LTP Fund General Partner LLC ("Nutritional LTP GP") is the general partner of Nutritional LTP. Flagship Pioneering is the manager of Nutritional LTP GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Common StockSEC Table I · non-derivative | IndirectBy Flagship Pioneering Special Opportunities Fund II, L.P. | 2,777,752 |
Reported balance
After 2026-03-02 transaction · row 4
Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source rowRow 4 · 2026-03-02 · Conversion · Acquired 2,777,752 · Balance 2,777,752 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F5: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Common StockSEC Table I · non-derivative | IndirectBy FPN II, L.P. | 4,340,252 |
Last balance in matching sequence
After 2026-03-02 transaction · row 7
Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rowsRow 5 · 2026-03-02 · Conversion · Acquired 2,777,752 · Balance 2,777,752 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F6: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Row 7 · 2026-03-02 · Purchase · Acquired 1,562,500 · Balance 4,340,252 F6: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Common StockSEC Table I · non-derivative | IndirectBy Pioneering Medicines 02, LLC | 1,562,500 |
Reported balance
After 2026-03-02 transaction · row 8
Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source rowRow 8 · 2026-03-02 · Purchase · Acquired 1,562,500 · Balance 1,562,500 F7: Securities held by Pioneering Medicine 02, LLC ("PM02"). Charles R. Carelli, Jr., Chief Financial Officer of Flagship Pioneering, is the sole manager of PM02, and Flagship Fund VII is its majority equity holder. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $16.00 · Expires 2036-02-25 | Direct | 29,561 |
Reported balance
After 2026-02-26 transaction · row 10
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 10 · 2026-02-26 · Grant · Acquired 29,561 · Balance 29,561 F9: The shares underlying this option shall vest in full on February 19, 2027, subject to the Reporting Person's continued service on such vesting date. |
| Series A Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Fund VI, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 11
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 11 · 2026-03-02 · Conversion · Disposed 18,483,785 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F2: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date. |
| Series A Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Fund VII, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 12
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 12 · 2026-03-02 · Conversion · Disposed 17,016,215 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series A Preferred StockSEC Table II · derivative / convertible security | IndirectBy Nutritional Health LTP Fund, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 13
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 13 · 2026-03-02 · Conversion · Disposed 1,500,000 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F4: Securities held by Nutritional Health LTP Fund, L.P. ("Nutritional LTP"). Nutritional Health LTP Fund General Partner LLC ("Nutritional LTP GP") is the general partner of Nutritional LTP. Flagship Pioneering is the manager of Nutritional LTP GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series B Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Fund VI, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 14
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 14 · 2026-03-02 · Conversion · Disposed 843,881 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F2: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date. |
| Series B Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Fund VII, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 15
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 15 · 2026-03-02 · Conversion · Disposed 1,265,822 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series B Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Special Opportunities Fund II, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 16
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 16 · 2026-03-02 · Conversion · Disposed 2,953,586 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F5: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series B Preferred StockSEC Table II · derivative / convertible security | IndirectBy FPN II, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 17
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 17 · 2026-03-02 · Conversion · Disposed 2,109,704 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F6: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series C Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Fund VII, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 18
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 18 · 2026-03-02 · Conversion · Disposed 2,531,644 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series C Preferred StockSEC Table II · derivative / convertible security | IndirectBy Flagship Pioneering Special Opportunities Fund II, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 19
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 19 · 2026-03-02 · Conversion · Disposed 1,265,822 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F5: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Series C Preferred StockSEC Table II · derivative / convertible security | IndirectBy FPN II, L.P. | 0 |
Reported balance
After 2026-03-02 transaction · row 20
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 20 · 2026-03-02 · Conversion · Disposed 2,109,704 · Balance 0 F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F6: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
| Common StockSEC Table I · non-derivative | IndirectBy Flagship VentureLabs VI, LLC | 25,016,458 |
Reported balance
Holding disclosure · report date 2026-02-26 · row 9
Holding and transaction disclosures are not merged.
1 source rowRow 9 · Balance 25,016,458 F8: Securities held by Flagship VentureLabs VI LLC ("VentureLabs VI"). Flagship VentureLabs VI Manager LLC ("VentureLabs VI Manager") is the manager of VentureLabs VI. Flagship Pioneering is the manager of VentureLabs VI Manager. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. |
Filing footnotes · ownership attribution and instrument terms
F1: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F2: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date.
F3: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F4: Securities held by Nutritional Health LTP Fund, L.P. ("Nutritional LTP"). Nutritional Health LTP Fund General Partner LLC ("Nutritional LTP GP") is the general partner of Nutritional LTP. Flagship Pioneering is the manager of Nutritional LTP GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F5: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F6: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F7: Securities held by Pioneering Medicine 02, LLC ("PM02"). Charles R. Carelli, Jr., Chief Financial Officer of Flagship Pioneering, is the sole manager of PM02, and Flagship Fund VII is its majority equity holder. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F8: Securities held by Flagship VentureLabs VI LLC ("VentureLabs VI"). Flagship VentureLabs VI Manager LLC ("VentureLabs VI Manager") is the manager of VentureLabs VI. Flagship Pioneering is the manager of VentureLabs VI Manager. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.
F9: The shares underlying this option shall vest in full on February 19, 2027, subject to the Reporting Person's continued service on such vesting date.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries C Preferred Stock · Derivative | 2,109,704 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 20 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By FPN II, L.P. Disclosed balance after: 0 Underlying: Common Stock · 1,388,876 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F6 · ownership.nature: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries C Preferred Stock · Derivative | 1,265,822 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 19 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Special Opportunities Fund II, L.P. Disclosed balance after: 0 Underlying: Common Stock · 833,325 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F5 · ownership.nature: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries C Preferred Stock · Derivative | 2,531,644 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 18 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VII, L.P. Disclosed balance after: 0 Underlying: Common Stock · 1,666,651 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3 · ownership.nature: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries B Preferred Stock · Derivative | 2,109,704 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 17 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By FPN II, L.P. Disclosed balance after: 0 Underlying: Common Stock · 1,388,876 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F6 · ownership.nature: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries B Preferred Stock · Derivative | 2,953,586 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 16 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Special Opportunities Fund II, L.P. Disclosed balance after: 0 Underlying: Common Stock · 1,944,427 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F5 · ownership.nature: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries B Preferred Stock · Derivative | 1,265,822 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 15 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VII, L.P. Disclosed balance after: 0 Underlying: Common Stock · 833,325 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3 · ownership.nature: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries B Preferred Stock · Derivative | 843,881 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 14 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VI, L.P. Disclosed balance after: 0 Underlying: Common Stock · 555,550 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F2 · ownership.nature: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries A Preferred Stock · Derivative | 1,500,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 13 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Nutritional Health LTP Fund, L.P. Disclosed balance after: 0 Underlying: Common Stock · 987,491 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F4 · ownership.nature: Securities held by Nutritional Health LTP Fund, L.P. ("Nutritional LTP"). Nutritional Health LTP Fund General Partner LLC ("Nutritional LTP GP") is the general partner of Nutritional LTP. Flagship Pioneering is the manager of Nutritional LTP GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries A Preferred Stock · Derivative | 17,016,215 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 12 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VII, L.P. Disclosed balance after: 0 Underlying: Common Stock · 11,202,248 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3 · ownership.nature: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionSeries A Preferred Stock · Derivative | 18,483,785 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 11 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VI, L.P. Disclosed balance after: 0 Underlying: Common Stock · 12,168,390 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.exercise_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F1 · derivative.expiration_date: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F2 · ownership.nature: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | PurchaseCommon Stock | 1,562,500 | $16.00 | $25,000,000.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 8 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Pioneering Medicines 02, LLC Disclosed balance after: 1,562,500 F7 · ownership.nature: Securities held by Pioneering Medicine 02, LLC ("PM02"). Charles R. Carelli, Jr., Chief Financial Officer of Flagship Pioneering, is the sole manager of PM02, and Flagship Fund VII is its majority equity holder. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | PurchaseCommon Stock | 1,562,500 | $16.00 | $25,000,000.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 7 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By FPN II, L.P. Disclosed balance after: 4,340,252 F6 · ownership.nature: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | PurchaseCommon Stock | 1,562,500 | $16.00 | $25,000,000.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 6 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VII, L.P. Disclosed balance after: 15,264,724 F3 · ownership.nature: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionCommon Stock | 2,777,752 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 5 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By FPN II, L.P. Disclosed balance after: 2,777,752 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F6 · ownership.nature: Securities held by FPN II, L.P. ("FPN II Fund"). FPN General Partner LLC ("FPN GP") is the general partner of FPN II Fund. Flagship Pioneering is the manager of FPN GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionCommon Stock | 2,777,752 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 4 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Special Opportunities Fund II, L.P. Disclosed balance after: 2,777,752 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F5 · ownership.nature: Securities held by Flagship Pioneering Special Opportunities Fund II, L.P. ("Flagship Opportunities Fund II"). Flagship Pioneering Special Opportunities Fund II General Partner LLC ("Flagship Opportunities Fund II GP") is the general partner of Flagship Opportunities Fund II. Flagship Pioneering is the manager of Flagship Opportunities Fund II GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionCommon Stock | 987,491 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 3 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Nutritional Health LTP Fund, L.P. Disclosed balance after: 987,491 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F4 · ownership.nature: Securities held by Nutritional Health LTP Fund, L.P. ("Nutritional LTP"). Nutritional Health LTP Fund General Partner LLC ("Nutritional LTP GP") is the general partner of Nutritional LTP. Flagship Pioneering is the manager of Nutritional LTP GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionCommon Stock | 13,702,224 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 2 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VII, L.P. Disclosed balance after: 13,702,224 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F3 · ownership.nature: Securities held by Flagship Pioneering Fund VII, L.P. ("Flagship Fund VII"). Flagship Pioneering Fund VII General Partner LLC ("Flagship Fund VII GP") is the general partner of Flagship Fund VII. Flagship Pioneering is the manager of Flagship Fund VII GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Read SEC document |
| March 02, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | ConversionCommon Stock | 12,723,940 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · nonDerivative · entry 1 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Flagship Pioneering Fund VI, L.P. Disclosed balance after: 12,723,940 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Securities held by Flagship Pioneering Fund VI, L.P. ("Flagship Fund VI"). Flagship Pioneering Fund VI General Partner LLC ("Flagship Fund VI GP") is the general partner of Flagship Fund VI. Flagship Pioneering, LLC ("Flagship Pioneering") is the manager of Flagship Fund VI GP. Noubar B. Afeyan, Ph.D. is the ultimate control person of Flagship Pioneering. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. F2 · ownership.nature: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of the Issuer's Common Stock on a one-for-1.5190 basis upon the closing of the Issuer's initial public offering on March 2, 2026. The Preferred Stock had no expiration date. Read SEC document |
| February 26, 2026 Filed Mar 2, 2026 17:42 UTC | Generate Biomedicines, Inc. GENB · Entity 1553 | GrantStock Option (Right to Buy) · Derivative | 29,561 | $0.00 Strike: $16.00 | $0.00 |
DisclosureSEC source: 0001193125-26-085855 · ownership.xml · derivative · entry 10 AFEYAN NOUBAR · CIK 0001222012 · Director · 10% owner Flagship VentureLabs VI LLC · CIK 0001725008 · 10% owner Flagship Pioneering Fund VI, L.P. · CIK 0001716926 · 10% owner Flagship Pioneering Fund VII, L.P. · CIK 0001805916 · 10% owner Nutritional Health LTP Fund, L.P. · CIK 0001780956 · 10% owner Flagship Pioneering Special Opportunities Fund II, L.P. · CIK 0001761283 · 10% owner FPN II, L.P. · CIK 0001918834 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,561 Underlying: Common Stock · 29,561 shares Expires 2036-02-25 F9 · derivative.exercise_date: The shares underlying this option shall vest in full on February 19, 2027, subject to the Reporting Person's continued service on such vesting date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.