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Assembly Biosciences Insider Trading Activity | NASDAQ:ASMB | Benzinga
Track the latest Assembly Biosciences insider trading activity. Stay informed on recent buys, sells, and market impact for Assembly Biosciences stock.
What is Insider Activity?
Insider trading activity involves company insiders, such as executives, directors, and employees, engaging in transactions of their own company's stock. Insiders' buy and sell transactions provide valuable insights into their confidence in the company's future performance.
What are Assembly Biosciences Inc Insiders Doing?
At Assembly Biosciences Inc, recent insider activity has drawn attention. Over the last 30 days, insiders have reported selling a total of 552.00 shares worth $5.44K, meanwhile, insiders have report no purchases in the last 30 days.
Notable Recent Insider Buys and Sales
- On April 1, 2025, Nicole White, the company's CHIEF MANUFACTURING OFFICER sold 197 shares for $9.85 each.
- On April 1, 2025, Jason Okazaki, the company's CEO AND PRESIDENT sold 355 shares for $9.85 each.
Ownership Statistics for Assembly Biosciences Inc
Shares Outstanding
7.503M
Insider Shares Owned
2.438M
Insider Percentage Owned
32.5%
Institutional Shares Held
470.491K
Institutional Percentage Held
6.07%
| Apr 01, 2025 | Jeanette Bjorkquist | PRINCIPAL ACCOUNTING OFFICER | 1.48K | $9.85 | -$1.77K | GRANT | 46.94% | 4.62K | Mar 29 - Mar 31 | View |
| Apr 01, 2025 | Jason Okazaki | CEO AND PRESIDENT | -355.00 | $9.85 | -$3.50K | SELL | -2.35% | 14.76K | Mar 31 | View |
| Apr 01, 2025 | Nicole White | CHIEF MANUFACTURING OFFICER | -197.00 | $9.85 | -$1.94K | SELL | -1.66% | 11.67K | Mar 31 | View |
| Dec 31, 2024 | Michael Houghton | — | 3.20K | $15.61 | $50.00K | BUY | ∞ | 3.20K | Dec 30 | View |
| Dec 23, 2024 | GILEAD SCIENCES INC | 10% OWNER | 940.50K | $21.37 | $20.10M | BUY | 74.12% | 2.21M | Dec 19 | View |
| Nov 26, 2024 | Alexander Schornstein | 10% OWNER | 25.00K | $14.88 | $371.99K | BUY | 3.56% | 728.11K | Nov 22 - Nov 25 | View |
| Nov 19, 2024 | Nicole White | CHIEF MANUFACTURING OFFICER | -40.00 | $16.29 | -$651.60 | SELL | -0.34% | 11.87K | Nov 18 | View |
| Oct 09, 2024 | Alexander Schornstein | 10% OWNER | 10.00K | $14.58 | $145.80K | BUY | 1.44% | 703.11K | Oct 08 | View |
| Oct 04, 2024 | Nicole White | CHIEF MANUFACTURING OFFICER | -157.00 | $14.81 | -$2.33K | SELL | -1.30% | 11.91K | Oct 03 | View |
| Oct 04, 2024 | Jason Okazaki | CEO AND PRESIDENT | -197.00 | $14.81 | -$2.92K | SELL | -1.30% | 14.90K | Oct 03 | View |
| Aug 05, 2024 | Nicole White | CHIEF MANUFACTURING OFFICER | -785.00 | $14.23 | -$11.17K | SELL | -6.11% | 12.07K | Aug 02 | View |
| Aug 05, 2024 | Jason Okazaki | CEO AND PRESIDENT | -981.00 | $14.23 | -$13.96K | SELL | -6.10% | 15.10K | Aug 02 | View |
| Jul 08, 2024 | Alexander Schornstein | 10% OWNER | 9.00K | $12.40 | $111.63K | BUY | 1.32% | 693.11K | Jul 03 - Jul 05 | View |
| Jun 20, 2024 | GILEAD SCIENCES INC | 10% OWNER | 179.50K | $0.00 | $0.00 | BUY | 16.48% | 1.27M | Jun 17 | View |
| May 24, 2024 | Jeanette Bjorkquist | PRINCIPAL ACCOUNTING OFFICER | -24.00 | $14.93 | -$358.41 | SELL | -0.76% | 3.14K | May 23 | View |
| May 24, 2024 | John McHutchison | — | -2.12K | $14.93 | -$31.61K | SELL | -9.98% | 19.10K | May 23 | View |
| May 24, 2024 | Nicole White | CHIEF MANUFACTURING OFFICER | -172.00 | $14.93 | -$2.57K | SELL | -1.32% | 12.85K | May 23 | View |
| May 24, 2024 | Jason Okazaki | CEO AND PRESIDENT | -549.00 | $14.93 | -$8.20K | SELL | -3.30% | 16.08K | May 23 | View |
| May 01, 2024 | Nicole White | CHIEF MANUFACTURING OFFICER | 2.08K | $12.71 | -$15.95K | GRANT | 18.98% | 13.03K | Apr 29 - Apr 30 | View |
| May 01, 2024 | Jason Okazaki | CEO AND PRESIDENT | 2.60K | $12.71 | -$19.94K | GRANT | 18.78% | 16.42K | Apr 29 - Apr 30 | View |
| Apr 02, 2024 | John McHutchison | — | -1.21K | $13.07 | -$15.76K | SELL | -5.38% | 21.22K | Apr 01 | View |
| Apr 02, 2024 | Jeanette Bjorkquist | PRINCIPAL ACCOUNTING OFFICER | 736.00 | $13.07 | -$1.49K | GRANT | 30.29% | 3.17K | Mar 29 - Apr 01 | View |
| Apr 02, 2024 | Nicole White | CHIEF MANUFACTURING OFFICER | -197.00 | $13.07 | -$2.58K | SELL | -1.77% | 10.95K | Apr 01 | View |
| Apr 02, 2024 | Jason Okazaki | CEO AND PRESIDENT | -354.00 | $13.07 | -$4.63K | SELL | -2.50% | 13.83K | Apr 01 | View |
| Mar 29, 2024 | Jason Okazaki | CEO AND PRESIDENT | -392.00 | $12.87 | -$5.05K | SELL | -2.69% | 14.18K | Mar 27 | View |
| Jan 19, 2024 | Alexander Schornstein | 10% OWNER | 645.08K | $0.79 | $511.26K | BUY | 8.53% | 8.21M | Jan 17 - Jan 18 | View |
| Nov 22, 2023 | Alexander Schornstein | 10% OWNER | 400.00K | $0.71 | $282.10K | BUY | 5.58% | 7.56M | Nov 20 - Nov 21 | View |
| Nov 21, 2023 | Nicole White | CHIEF MANUFACTURING OFFICER | -477.00 | $0.69 | -$328.65 | SELL | -0.51% | 93.77K | Nov 17 | View |
| Oct 04, 2023 | Nicole White | CHIEF MANUFACTURING OFFICER | 8.11K | $0.80 | -$1.50K | GRANT | 9.41% | 94.25K | Oct 02 - Oct 03 | View |
| Oct 04, 2023 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | 8.11K | $0.80 | -$1.50K | GRANT | 5.68% | 150.85K | Oct 02 - Oct 03 | View |
| Oct 04, 2023 | Jason Okazaki | CEO AND PRESIDENT | 10.14K | $0.80 | -$1.88K | GRANT | 6.15% | 174.92K | Oct 02 - Oct 03 | View |
| Aug 03, 2023 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | -9.46K | $1.09 | -$10.29K | SELL | -6.22% | 142.74K | Aug 02 | View |
| Aug 03, 2023 | Jason Okazaki | CEO AND PRESIDENT | -11.83K | $1.09 | -$12.87K | SELL | -6.70% | 164.79K | Aug 02 | View |
| Jul 25, 2023 | Jeanette Bjorkquist | PRINCIPAL ACCOUNTING OFFICER | -844.00 | $1.07 | -$900.38 | SELL | -3.07% | 26.69K | Jul 24 | View |
| May 31, 2023 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | -4.23K | $0.96 | -$4.05K | SELL | -3.63% | 112.20K | May 30 | View |
| May 24, 2023 | John McHutchison | DIRECTOR | 91.53K | $1.04 | -$27.02K | GRANT | 117.90% | 169.16K | May 22 - May 23 | View |
| May 24, 2023 | Jeanette Bjorkquist | PRINCIPAL ACCOUNTING OFFICER | 1.23K | $1.04 | -$285.04 | GRANT | 4.66% | 27.53K | May 22 - May 23 | View |
| May 24, 2023 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | 28.44K | $1.04 | -$6.83K | GRANT | 32.32% | 116.44K | May 22 - May 23 | View |
| May 24, 2023 | Jason Okazaki | CEO AND PRESIDENT | 28.44K | $1.04 | -$6.83K | GRANT | 28.97% | 126.61K | May 22 - May 23 | View |
| Mar 31, 2023 | John McHutchison | DIRECTOR | -14.88K | $0.82 | -$12.25K | SELL | -7.73% | 177.63K | Mar 30 | View |
| Mar 31, 2023 | Jeanette Bjorkquist | PRINCIPAL ACCOUNTING OFFICER | 5.48K | $0.82 | -$637.16 | GRANT | 29.87% | 23.81K | Mar 29 - Mar 30 | View |
| Mar 31, 2023 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | -3.42K | $0.82 | -$2.82K | SELL | -3.85% | 85.50K | Mar 30 | View |
| Mar 31, 2023 | Jason Okazaki | CEO AND PRESIDENT | -4.25K | $0.82 | -$3.50K | SELL | -4.15% | 98.17K | Mar 30 | View |
| Mar 28, 2023 | Jason Okazaki | CEO AND PRESIDENT | -4.69K | $1.02 | -$4.78K | SELL | -4.38% | 102.42K | Mar 27 | View |
| Aug 10, 2022 | John McHutchison | CHIEF EXECUTIVE OFFICER | -12.31K | $2.13 | -$26.20K | SELL | -6.01% | 192.51K | Aug 08 | View |
| Jul 26, 2022 | Michael Samar | CHIEF FINANCIAL OFFICER | -2.02K | $2.22 | -$4.48K | SELL | -2.55% | 77.23K | Jul 25 | View |
| Jun 02, 2022 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | -4.16K | $1.92 | -$8.00K | SELL | -5.17% | 76.42K | May 31 | View |
| Mar 31, 2022 | Michael Samar | CHIEF FINANCIAL OFFICER | 23.96K | $2.17 | -$4.95K | GRANT | 45.40% | 76.75K | Mar 29 - Mar 30 | View |
| Mar 31, 2022 | Luisa Stamm | CHIEF MEDICAL OFFICER | 21.46K | $2.17 | -$2.25K | GRANT | 113.84% | 40.31K | Mar 29 - Mar 30 | View |
| Mar 31, 2022 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | 23.96K | $2.17 | -$2.25K | GRANT | 44.27% | 78.08K | Mar 29 - Mar 30 | View |
| Mar 31, 2022 | Jason Okazaki | CHIEF OPERATING OFFICER | 29.98K | $2.17 | -$2.75K | GRANT | 46.39% | 94.61K | Mar 29 - Mar 30 | View |
| Mar 31, 2022 | John McHutchison | CEO AND PRESIDENT | 79.14K | $2.17 | -$10.00K | GRANT | 62.96% | 204.83K | Mar 29 - Mar 30 | View |
| Mar 29, 2022 | Jason Okazaki | CHIEF OPERATING OFFICER | -4.62K | $2.24 | -$10.36K | SELL | -6.67% | 64.63K | Mar 28 | View |
| Aug 10, 2021 | John McHutchison | CEO AND PRESIDENT | -12.16K | $3.60 | -$43.78K | SELL | -8.82% | 125.69K | Aug 09 | View |
| Jun 01, 2021 | William Delaney IV | CHIEF SCIENTIFIC OFFICER | -4.13K | $4.03 | -$16.64K | SELL | -7.21% | 53.12K | May 27 | View |
| Dec 15, 2020 | Sybil Jacqueline Papkoff | — | -1.30K | $6.15 | -$7.98K | SELL | -3.35% | 37.36K | Dec 14 | View |
| Nov 10, 2020 | Luisa Stamm | — | -4.40K | $5.10 | -$22.40K | SELL | -36.64% | 7.60K | Nov 09 | View |
| Aug 10, 2020 | John McHutchison | — | -12.15K | $21.80 | -$264.92K | SELL | -8.10% | 137.85K | Aug 07 | View |
FAQ
Is insider trading legal?
Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.
What are some examples of market manipulation?
Insider trading, pump and dump schemes, front running and wash trades are all examples of market manipulation. Investors who track insider asset movement should think carefully about why these insiders are trading their stocks before moving forward.
Browse insider trades on all stocks.