ASSEMBLY BIOSCIENCES, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| GILEAD SCIENCES, INC. | — | Purchase | 2,295,920 | — | — | 4,505,391 | Aug 8, 2025 |
| Bjorkquist Jeanette M | PFO and PAO | Award / Grant | 300 | — | — | 5,097 | Jun 16, 2025 |
| McHutchison John G | — | Sale | 757 | $9.85 | $7,456 | 18,347 | Mar 31, 2025 |
| Bjorkquist Jeanette M | Principal Accounting Officer | Award / Grant | 1,655 | — | — | 4,797 | Mar 31, 2025 |
| Okazaki Jason A | CEO and President | Sale | 355 | $9.85 | $3,497 | 14,757 | Mar 31, 2025 |
| White Nicole S | Chief Manufacturing Officer | Sale | 197 | $9.85 | $1,940 | 11,674 | Mar 31, 2025 |
| Houghton Michael | — | Purchase | 3,202 | $15.61 | $49,983 | 3,202 | Dec 30, 2024 |
| GILEAD SCIENCES, INC. | — | Purchase | 940,499 | $21.37 | $20,098,464 | 2,209,471 | Dec 19, 2024 |
| Schornstein Alexander | — | Purchase | 5,000 | $14.85 | $74,250 | 728,113 | Nov 22, 2024 |
| White Nicole S | Chief Manufacturing Officer | Sale | 40 | $16.29 | $652 | 11,871 | Nov 18, 2024 |
| Schornstein Alexander | — | Purchase | 10,000 | $14.58 | $145,800 | 703,113 | Oct 8, 2024 |
| White Nicole S | Chief Manufacturing Officer | Sale | 157 | $14.81 | $2,325 | 11,911 | Oct 3, 2024 |
| Okazaki Jason A | CEO and President | Sale | 197 | $14.81 | $2,918 | 14,904 | Oct 3, 2024 |
| White Nicole S | Chief Manufacturing Officer | Sale | 785 | $14.23 | $11,171 | 12,068 | Aug 2, 2024 |
| Okazaki Jason A | CEO and President | Sale | 981 | $14.23 | $13,960 | 15,101 | Aug 2, 2024 |
| Schornstein Alexander | — | Purchase | 4,562 | $12.29 | $56,067 | 688,675 | Jul 5, 2024 |
| GILEAD SCIENCES, INC. | — | Purchase | 179,500 | — | — | 1,268,972 | Jun 17, 2024 |
| Bjorkquist Jeanette M | Principal Accounting Officer | Sale | 24 | $14.93 | $358 | 3,142 | May 23, 2024 |
| McHutchison John G | — | Sale | 2,117 | $14.93 | $31,607 | 19,104 | May 23, 2024 |
| White Nicole S | Chief Manufacturing Officer | Sale | 172 | $14.93 | $2,568 | 12,853 | May 23, 2024 |
| Okazaki Jason A | CEO and President | Sale | 549 | $14.93 | $8,197 | 16,082 | May 23, 2024 |
| Okazaki Jason A | CEO and President | Award / Grant | 4,166 | — | — | 17,992 | Apr 30, 2024 |
| White Nicole S | Chief Manufacturing Officer | Sale | 1,255 | $12.71 | $15,951 | 13,025 | Apr 29, 2024 |
| Delaney William E IV | Chief Scientific Officer | Award / Grant | 3,333 | — | — | 16,109 | Apr 29, 2024 |
| McHutchison John G | — | Sale | 1,206 | $13.07 | $15,762 | 21,221 | Apr 1, 2024 |
| White Nicole S | Chief Manufacturing Officer | Sale | 197 | $13.07 | $2,575 | 10,947 | Apr 1, 2024 |
| Okazaki Jason A | CEO and President | Sale | 354 | $13.07 | $4,627 | 13,826 | Apr 1, 2024 |
| Bjorkquist Jeanette M | Principal Accounting Officer | Sale | 114 | $13.07 | $1,490 | 3,166 | Mar 29, 2024 |
| Okazaki Jason A | CEO and President | Sale | 392 | $12.87 | $5,045 | 14,180 | Mar 27, 2024 |
| Schornstein Alexander | — | Purchase | 299,994 | $0.78 | $233,995 | 7,864,286 | Jan 18, 2024 |
| Schornstein Alexander | — | Purchase | 300,000 | $0.72 | $216,000 | 7,464,292 | Nov 21, 2023 |
| White Nicole S | Chief Manufacturing Officer | Sale | 477 | $0.69 | $329 | 93,774 | Nov 17, 2023 |
| Okazaki Jason A | CEO and President | Award / Grant | 12,500 | — | — | 177,286 | Oct 3, 2023 |
| White Nicole S | Chief Manufacturing Officer | Sale | 1,891 | $0.80 | $1,513 | 94,251 | Oct 2, 2023 |
| Delaney William E IV | Chief Scientific Officer | Sale | 1,891 | $0.80 | $1,513 | 150,853 | Oct 2, 2023 |
| Delaney William E IV | Chief Scientific Officer | Sale | 9,461 | $1.09 | $10,312 | 142,744 | Aug 2, 2023 |
| Okazaki Jason A | CEO and President | Sale | 11,827 | $1.09 | $12,891 | 164,786 | Aug 2, 2023 |
| Bjorkquist Jeanette M | Principal Accounting Officer | Sale | 844 | $1.07 | $903 | 26,688 | Jul 24, 2023 |
| Delaney William E IV | Chief Scientific Officer | Award / Grant | 40,000 | — | — | 152,205 | Jun 22, 2023 |
| Okazaki Jason A | CEO and President | Award / Grant | 50,000 | — | — | 176,613 | Jun 22, 2023 |
| Delaney William E IV | Chief Scientific Officer | Sale | 4,232 | $0.96 | $4,063 | 112,205 | May 30, 2023 |
| Delaney William E IV | Chief Scientific Officer | Award / Grant | 35,000 | — | — | 122,998 | May 23, 2023 |
| Okazaki Jason A | CEO and President | Award / Grant | 35,000 | — | — | 133,174 | May 23, 2023 |
| McHutchison John G | — | Sale | 25,972 | $1.04 | $27,011 | 169,160 | May 22, 2023 |
| Bjorkquist Jeanette M | Principal Accounting Officer | Sale | 274 | $1.04 | $285 | 27,532 | May 22, 2023 |
| McHutchison John G | — | Sale | 14,883 | $0.82 | $12,204 | 177,632 | Mar 30, 2023 |
| Bjorkquist Jeanette M | Principal Accounting Officer | Award / Grant | 6,250 | — | — | 24,580 | Mar 30, 2023 |
| Delaney William E IV | Chief Scientific Officer | Sale | 3,421 | $0.82 | $2,805 | 85,498 | Mar 30, 2023 |
| Okazaki Jason A | CEO and President | Sale | 4,247 | $0.82 | $3,483 | 98,174 | Mar 30, 2023 |
| Okazaki Jason A | CEO and President | Sale | 4,693 | $1.02 | $4,787 | 102,421 | Mar 27, 2023 |