In the last 12 months, insiders at Assembly Biosciences made open-market sales of $201,470 (10.08K shares) and bought no shares on the open market.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Sciences, Inc. Gilead | TenPercentOwner | 4,977,089 | 0 | 4,977,089 | 81.1% | 27 May, 2026 |
| 2 | Alexander Schornstein | TenPercentOwner | 728,113 | 0 | 728,113 | 11.9% | 25 Nov, 2024 |
| 3 | Jason A Okazaki | Ceo And President | 195,532 | 0 | 195,532 | 3.2% | 03 Nov, 2026 |
| 4 | William E Iv Delaney | Chief Scientific Officer | 74,035 | 0 | 74,035 | 1.2% | 03 Nov, 2026 |
| 5 | Nicole S White | Chief Manufacturing Officer | 59,257 | 0 | 59,257 | 1.0% | 03 Nov, 2026 |
| 6 | Anuj Gaggar | Chief Medical Officer | 53,800 | 0 | 53,800 | 0.9% | 03 Nov, 2026 |
| 7 | John G Mchutchison | Chief Executive Officer | 18,347 | 0 | 18,347 | 0.3% | 15 Apr, 2025 |
| 8 | Jeanette M Bjorkquist | Pfo And Pao | 17,673 | 0 | 17,673 | 0.3% | 03 Nov, 2026 |
| 9 | Michael P. Samar | Chief Financial Officer | 6,435 | 0 | 6,435 | 0.1% | 26 Jul, 2022 |
| 10 | Luisa M Stamm | Chief Medical Officer | 3,359 | 0 | 3,359 | 0.1% | 31 Mar, 2022 |
| 11 | Michael Houghton | Director | 0 | 3,202 | 3,202 | 0.1% | 31 Dec, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 30 Oct, 2026 | William E Iv Delaney | Chief Scientific Officer | Acquired A | 13,705 | $0.00 | $0 | 74,035 | Direct |
| 30 Oct, 2026 | Anuj Gaggar | Chief Medical Officer | Acquired A | 13,705 | $0.00 | $0 | 56,393 | Direct |
| 30 Oct, 2026 | Jason A Okazaki | Ceo And President | Acquired A | 38,380 | $0.00 | $0 | 201,734 | Direct |
| 30 Oct, 2026 | Nicole S White | Chief Manufacturing Officer | Acquired A | 13,705 | $0.00 | $0 | 61,850 | Direct |
| 30 Oct, 2026 | Jeanette M Bjorkquist | Pfo And Pao | Acquired A | 3,840 | $0.00 | $0 | 18,400 | Direct |
| 02 Nov, 2026 | Jason A Okazaki | Ceo And President | Disposed S | 6,133 | $19.61 | $120.25K | 195,601 | Direct |
| 02 Nov, 2026 | Jeanette M Bjorkquist | Pfo And Pao | Disposed S | 718 | $19.61 | $14.08K | 17,682 | Direct |
| 02 Nov, 2026 | Nicole S White | Chief Manufacturing Officer | Disposed S | 2,564 | $19.61 | $50.27K | 59,286 | Direct |
| 02 Nov, 2026 | Anuj Gaggar | Chief Medical Officer | Disposed S | 2,564 | $19.61 | $50.27K | 53,829 | Direct |
| 02 Nov, 2026 | Jason A Okazaki | Ceo And President | Disposed S | 69 | $20.35 | $1.40K | 195,532 | Direct |
| 02 Nov, 2026 | Nicole S White | Chief Manufacturing Officer | Disposed S | 29 | $20.35 | $590 | 59,257 | Direct |
| 02 Nov, 2026 | Anuj Gaggar | Chief Medical Officer | Disposed S | 29 | $20.35 | $590 | 53,800 | Direct |
| 02 Nov, 2026 | Jeanette M Bjorkquist | Pfo And Pao | Disposed S | 9 | $20.35 | $183 | 17,673 | Direct |
| 17 Jun, 2026 | Jeanette M Bjorkquist | Pfo And Pao | Disposed S | 29 | $23.25 | $674 | 14,560 | Direct |
| 29 Mar, 2026 | Nicole S White | Chief Manufacturing Officer | Acquired A | 14,000 | $0.00 | $0 | 48,145 | Direct |
| 04 Jun, 2026 | Anthony E Altig | Director | Acquired A | 8,000 | $0.00 | $0 | 8,000 | Direct |
| 29 Mar, 2026 | William E Iv Delaney | Chief Scientific Officer | Acquired A | 14,000 | $0.00 | $0 | 60,330 | Direct |
| 04 Jun, 2026 | Lisa Johnson-Pratt | Director | Acquired A | 8,000 | $0.00 | $0 | 8,000 | Direct |
| 29 Mar, 2026 | Anuj Gaggar | Chief Medical Officer | Acquired A | 14,000 | $0.00 | $0 | 42,688 | Direct |
| 04 Jun, 2026 | John G Mchutchison | Director | Acquired A | 8,000 | $0.00 | $0 | 8,000 | Direct |