Assembly Biosciences, Inc. (ASMB)
Nasdaq: ASMB · Pharmaceutical Preparations · South San Francisco, CA · filing with the SEC since 2008
Who runs Assembly Biosciences, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Okazaki Jason A
CEO and President. First filing Mar 2020, latest Nov 3, 2026, 15 filings in all.
Officers reporting now
6
of 11 people with a filing in the last fifteen months
Directors reporting now
5
30 people on the record since 2010
Officerssales are open-market, Nov 3, 2025 to Nov 3, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Okazaki Jason A | CEO and President | Mar 2020 | Nov 3, 2026 | 2 · $100,000 |
| Delaney William E IV | Chief Scientific Officer | May 2020 | Nov 3, 2026 | none |
| Gaggar Anuj | Chief Medical Officer | Nov 2023 | Nov 3, 2026 | 2 · $100,000 |
| White Nicole S | Chief Manufacturing Officer | Sep 2023 | Nov 3, 2026 | 4 · $100,000 |
| Bjorkquist Jeanette M | PFO and PAO | Sep 2022 | Nov 3, 2026 | 5 · $0.00 |
| Mchutchison John G | Chief Executive Officer | Aug 2019 | Jun 5, 2026 | none |
Directorssales are open-market, Nov 3, 2025 to Nov 3, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Altig Anthony E | director | Jan 2012 | Jun 5, 2026 | none |
| Consylman Gina | director | Oct 2020 | Jun 5, 2026 | none |
| Houghton Michael | director | Jul 2021 | Jun 5, 2026 | none |
| Johnson-Pratt Lisa | director | May 2021 | Jun 5, 2026 | none |
| Mahony Susan | director | Dec 2017 | Jun 5, 2026 | none |
Owners of more than 10% of a classsales are open-market, Nov 3, 2025 to Nov 3, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Gilead Sciences, Inc. | 10% owner | Oct 2023 | May 27, 2026 | none |
Earlier names on the record21, newest filing first
Ringo William R · director · last filing Jun 2025Schornstein Alexander · 10% owner · last filing Nov 2024Cook Robert Donald II · director · last filing Mar 2024Cihlar Tomas · director · last filing Dec 2023Samar Michael P. · officer · last filing Jul 2022Dimarchi Richard D · director · last filing May 2022Stamm Luisa M · officer · last filing Mar 2022Holubiak Myron Z · director · last filing May 2021Russo Thomas Joseph · officer · last filing Apr 2021Papkoff Jacqueline Sybil · officer · last filing Dec 2020Kim Helen Susan · director · last filing Jun 2020Lewis Alan · director · last filing Jun 2020Colonno Richard James · officer · last filing Mar 2020Small Derek A · officer · last filing Jan 2020Auerbach Mark · director · last filing May 2019Cooper Graham K · officer · last filing Apr 2019Lopatin Uri A · officer · last filing Apr 2019Ecor1 Capital Fund Qualified, L.P. · 10% owner · last filing Apr 2018Rollins Thomas E · officer · last filing Mar 2018Barrett David Jonathan · officer · last filing Mar 2017Barbosa Miguel · officer · last filing Oct 2016
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.