Generate Biomedicines, Inc. (GENB)
Generate Biomedicines, Inc. (GENB) Insider Trading
Directors, officers and holders of more than 10% of GENB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 57 transactions on file: 9 with code P, 1 with code S and 40 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | ARNOLD FRANCES | Director | S Sale | 1,000 | $16.00 | $16,002 |
| Mar 4, 2026 | Nally Michael | Chief Executive Officer | P Purchase | 20,000 | $12.00 | $240,000 |
| Mar 2, 2026 | Silvers Jason | President & CFO | P Purchase | 500 | $16.00 | $8,000 |
| Mar 2, 2026 | Silvers Jason | President & CFO | P Purchase | 1,000 | $16.00 | $16,000 |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 12,723,940 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 13,702,224 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 987,491 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,777,752 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,777,752 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | P Purchase | 1,562,500 | $16.00 | $25,000,000 |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | P Purchase | 1,562,500 | $16.00 | $25,000,000 |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | P Purchase | 1,562,500 | $16.00 | $25,000,000 |
| Mar 2, 2026 | Nally Michael | Chief Executive Officer | C Conversion | 658,327 | Not measured | Not measured |
| Mar 2, 2026 | Bancel Stephane | Director | C Conversion | 724,160 | Not measured | Not measured |
| Mar 2, 2026 | Mendillo Jane L | Director | P Purchase | 1,500 | $16.00 | $24,000 |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,109,704 | Not measured | Not measured |
| Mar 2, 2026 | Silvers Jason | President & CFO | P Purchase | 500 | $16.00 | $8,000 |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 1,265,822 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,953,586 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,109,704 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,531,644 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 1,265,822 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,109,704 | Not measured | Not measured |
| Mar 2, 2026 | Nally Michael | Chief Executive Officer | C Conversion | 1,000,000 | Not measured | Not measured |
| Mar 2, 2026 | Bancel Stephane | Director | C Conversion | 1,100,000 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 18,483,785 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 17,016,215 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 1,500,000 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 843,881 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 1,265,822 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,953,586 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,109,704 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 2,531,644 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 1,265,822 | Not measured | Not measured |
| Mar 2, 2026 | Grous Beth | Chief People Officer | P Purchase | 300 | $16.00 | $4,800 |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 18,483,785 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 17,016,215 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 1,500,000 | Not measured | Not measured |
| Mar 2, 2026 | AFEYAN NOUBAR | Director | C Conversion | 843,881 | Not measured | Not measured |
| Feb 26, 2026 | Vessey Rupert | Director | A Award | 29,561 | Not measured | Not measured |
| Feb 26, 2026 | Grous Beth | Chief People Officer | A Award | 114,020 | Not measured | Not measured |
| Feb 26, 2026 | ARNOLD FRANCES | Director | A Award | 29,561 | Not measured | Not measured |
| Feb 26, 2026 | Lee Laurie Anne | Chief Medical Officer | A Award | 42,230 | Not measured | Not measured |
| Feb 26, 2026 | Martin Sean | Chief Legal Officer & GC | A Award | 190,034 | Not measured | Not measured |
| Feb 26, 2026 | Simonian Nancy A | Director | A Award | 29,561 | Not measured | Not measured |
| Feb 26, 2026 | Silvers Jason | President & CFO | A Award | 295,608 | Not measured | Not measured |
| Feb 26, 2026 | Silvers Jason | President & CFO | A Award | 274,493 | Not measured | Not measured |
| Feb 26, 2026 | AFEYAN NOUBAR | Director | A Award | 29,561 | Not measured | Not measured |
| Feb 26, 2026 | Fanucci Marsha | Director | A Award | 29,561 | Not measured | Not measured |
| Feb 26, 2026 | Grigoryan Gevorg | Chief Technology Officer | A Award | 295,608 | Not measured | Not measured |
The full Form 4 history is on the GENB company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.