ASSEMBLY BIOSCIENCES, INC. (ASMB)
$34.07-$0.73 (-2.10%) Today
Assembly Biosciences Inc is a clinical-stage biotechnology company. The Company's pipeline includes multiple clinical-stage investigational therapies, including: (1) two long-acting helicase-primase inhibitors (HPI) for the treatment of recurrent genital herpes; (2) an orally bioavailable hepatitis delta virus entry inhibitor; and (3) a potent next-generation capsid assembly modulator designed to disrupt the replication cycle of hepatitis B virus (HBV) at several key points. The Company's pipeline also includes a novel, oral broad-spectrum non-nucleoside polymerase inhibitor (NNPI) for the treatment of transplant-related herpesviruses.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 29 | $674 |
| Grant or award | 11 | 144,250 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
28 Form 4 filings on record, the earliest from Oct 4, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jeanette M. Bjorkquist - Officer | Open-market sale | Common Stock | 29 | $23.25 | $674 | |
 Anuj Gaggar - Officer | Grant or award | Common Stock | 14,000 | $0.00 | - | |
| Nicole S. White - Officer | Grant or award | Common Stock | 14,000 | $0.00 | - | |
| John G. McHutchison | Grant or award | Stock Option (right to buy) | 8,000 | $0.00 | - | |
| Susan Mahony | Grant or award | Stock Option (right to buy) | 8,000 | $0.00 | - | |
| Lisa Johnson-Pratt | Grant or award | Stock Option (right to buy) | 8,000 | $0.00 | - | |
| Michael Houghton | Grant or award | Stock Option (right to buy) | 8,000 | $0.00 | - | |
| Gina Consylman | Grant or award | Stock Option (right to buy) | 8,000 | $0.00 | - | |
| Anthony E. Altig | Grant or award | Stock Option (right to buy) | 8,000 | $0.00 | - | |
| Jeanette M. Bjorkquist - Officer | Grant or award | Common Stock | 3,500 | $0.00 | - | |
 William E. Delaney IV - Officer | Grant or award | Common Stock | 14,000 | $0.00 | - | |
| Jason A. Okazaki - Officer | Grant or award | Common Stock | 50,750 | $0.00 | - | |
| GILEAD SCIENCES, INC. - 10% Owner | Grant or award | Common Stock | 471,698 | $26.50 | $12.50M | |
| Jeanette M. Bjorkquist - Officer | Grant or award | Common Stock | 6,500 | $0.00 | - | |
| Jeanette M. Bjorkquist - Officer | Open-market sale | Common Stock | 312 | $26.65 | $8K | |
| Jeanette M. Bjorkquist - Officer | Open-market sale | Common Stock | 16 | $27.49 | $440 | |
| Nicole S. White - Officer | Grant or award | Common Stock | 26,000 | $0.00 | - | |
| Nicole S. White - Officer | Open-market sale | Common Stock | 188 | $26.65 | $5K | |
| Nicole S. White - Officer | Open-market sale | Common Stock | 9 | $27.49 | $247 | |
| Anuj Gaggar - Officer | Grant or award | Common Stock | 26,000 | $0.00 | - | |
| William E. Delaney IV - Officer | Grant or award | Common Stock | 26,000 | $0.00 | - | |
| Jason A. Okazaki - Officer | Grant or award | Common Stock | 94,250 | $0.00 | - | |
| GILEAD SCIENCES, INC. - 10% Owner | Open-market purchase | Common Stock | 2,295,920 | - | - | |
| GILEAD SCIENCES, INC. - 10% Owner | Open-market purchase | Class A warrants to purchase Common Stock | 1,147,960 | - | - | |
| GILEAD SCIENCES, INC. - 10% Owner | Open-market purchase | Class B warrants to purchase Common Stock | 1,147,960 | - | - | |
| Anthony E. Altig | Grant or award | Stock Option (right to buy) | 3,500 | $0.00 | - | |
| William R. Ringo | Grant or award | Stock Option (right to buy) | 3,500 | $0.00 | - | |
| Michael Houghton | Open-market purchase | Common Stock | 3,202 | $15.61 | $50K | |
| GILEAD SCIENCES, INC. - 10% Owner | Open-market purchase | Common Stock | 940,499 | $21.37 | $20.10M | |
| Alexander Schornstein - 10% Owner | Open-market purchase | Common Stock | 17,024 | $14.87 | $253K | |
| Alexander Schornstein - 10% Owner | Open-market purchase | Common Stock | 2,976 | $15.00 | $45K | |
| Alexander Schornstein - 10% Owner | Open-market purchase | Common Stock | 5,000 | $14.85 | $74K | |
| Nicole S. White - Officer | Open-market sale | Common Stock | 40 | $16.29 | $652 | |
| Alexander Schornstein - 10% Owner | Open-market purchase | Common Stock | 10,000 | $14.58 | $146K | |
| Jason A. Okazaki - Officer | Open-market sale | Common Stock | 197 | $14.81 | $3K | |
| Nicole S. White - Officer | Open-market sale | Common Stock | 157 | $14.81 | $2K |
ASSEMBLY BIOSCIENCES, INC. (ASMB) had 12 insider filings in the last 90 days, with the most recent on 2026-06-18. The full record for ASMB runs to 28 Form 4 filings, the earliest from 2024-10-04. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of ASMB were filed in the last 90 days. 9 purchases are on record for this company.
1 insider sale of ASMB was filed in the last 90 days, totaling $674.
This page tracks ASMB Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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