Insider txns (12m)
22
Stock / equity
ASMB ASSEMBLY BIOSCIENCES, INC.
- Company
- ASSEMBLY BIOSCIENCES, INC.
- Security
- Equity
- Size, estimated from filings
- Small cap ($300M – $2B)
- Insiders on record
- 12
- Latest trade on record
- June 17, 2026
ASMB (ASSEMBLY BIOSCIENCES, INC.) has 22 disclosed insider transactions from 12 insiders in the last 12 months (0 open-market buys, 5 sales, about $12.5M at reported prices) and 0 congressional trades from 0 members of Congress. The most recent disclosure was filed June 18, 2026.
Open-market buys / sales
0 / 5
Congress trades (12m)
0
Distinct filers (12m)
12
Share price
Price and chart by TradingView for ASSEMBLY BIOSCIENCES, INC.. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.
ASMB in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
2 people account for the disclosed buying and selling in ASMB over the last 12 months; the most active is Bjorkquist Jeanette M with $9K.
Prices insiders traded at
What price did insiders buy and sell at? Each marker is one open-market trade at the share price reported on its Form 4.
▲ Bought▼ SoldAverage reported price that day
Insiders reported 5 open-market trades in ASMB since Mar 30, 2026, at prices from $23.25 to $27.49; the most recent was a sale at $23.25 on Jun 17, 2026. These are the prices on the filings, not adjusted for stock splits, and not a market price series.
Insider holdings over time
Is an insider building or unwinding a position? Shares held directly after each filing.
Bjorkquist Jeanette MDelaney William E IV
Bjorkquist Jeanette M reported 14,560 shares held after the latest filing, against 11,089 at the first on record.
Insiders trading ASMB
Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns.
| Insider | Role | Rows | Bought | Sold | Value bought | Value sold | Latest |
|---|---|---|---|---|---|---|---|
| Bjorkquist Jeanette M | PFO and PAO | 5 | 0 | 3 | — | $9,429 | June 17, 2026 |
| GILEAD SCIENCES, INC. | Insider | 4 | 1 | 0 | — | — | May 26, 2026 |
| White Nicole S | Chief Manufacturing Officer | 4 | 0 | 2 | — | $5,258 | March 30, 2026 |
| Delaney William E IV | Chief Scientific Officer | 2 | 0 | 0 | — | — | March 29, 2026 |
| Gaggar Anuj | Chief Medical Officer | 2 | 0 | 0 | — | — | March 29, 2026 |
| Okazaki Jason A | CEO and President | 2 | 0 | 0 | — | — | March 29, 2026 |
| ALTIG ANTHONY E | Director | 1 | 0 | 0 | — | — | June 4, 2026 |
| Consylman Gina | Director | 1 | 0 | 0 | — | — | June 4, 2026 |
| Houghton Michael | Director | 1 | 0 | 0 | — | — | June 4, 2026 |
| Johnson-Pratt Lisa | Director | 1 | 0 | 0 | — | — | June 4, 2026 |
| Mahony Susan | Director | 1 | 0 | 0 | — | — | June 4, 2026 |
| McHutchison John G | Director | 1 | 0 | 0 | — | — | June 4, 2026 |
What kind of transactions these are 3 Form 4 codes
| Code | Meaning | Rows | Shares | Value at reported prices |
|---|---|---|---|---|
| A | Grant or award | 17 | 794,698 | $12.5M |
| S | Open-market sale | 5 | 554 | $15K |
| P | Open-market purchase | 3 | 4,591,840 | — |
What each code means: Form 4 transaction codes.
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Bjorkquist Jeanette M | Sell S | June 17, 2026 | June 18, 2026 | 1d | 29 | $23 | $674 | Form 4 ↗ | ||
| Delaney William E IV | Other A | March 29, 2026 | June 5, 2026 | 68d | 14,000 | — | — | late | Form 4 ↗ | |
| Okazaki Jason A | Other A | March 29, 2026 | June 5, 2026 | 68d | 50,750 | — | — | late | Form 4 ↗ | |
| Bjorkquist Jeanette M | Other A | March 29, 2026 | June 5, 2026 | 68d | 3,500 | — | — | late | Form 4 ↗ | |
| ALTIG ANTHONY E | Other A | June 4, 2026 | June 5, 2026 | 1d | 8,000 | — | — | derivative | Form 4 ↗ | |
| Consylman Gina | Other A | June 4, 2026 | June 5, 2026 | 1d | 8,000 | — | — | derivative | Form 4 ↗ | |
| Houghton Michael | Other A | June 4, 2026 | June 5, 2026 | 1d | 8,000 | — | — | derivative | Form 4 ↗ | |
| Johnson-Pratt Lisa | Other A | June 4, 2026 | June 5, 2026 | 1d | 8,000 | — | — | derivative | Form 4 ↗ | |
| Mahony Susan | Other A | June 4, 2026 | June 5, 2026 | 1d | 8,000 | — | — | derivative | Form 4 ↗ | |
| McHutchison John G | Other A | June 4, 2026 | June 5, 2026 | 1d | 8,000 | — | — | derivative | Form 4 ↗ | |
| White Nicole S | Other A | March 29, 2026 | June 5, 2026 | 68d | 14,000 | — | — | late | Form 4 ↗ | |
| Gaggar Anuj | Other A | March 29, 2026 | June 5, 2026 | 68d | 14,000 | — | — | late | Form 4 ↗ | |
| GILEAD SCIENCES, INC. | Other A | May 26, 2026 | May 27, 2026 | 1d | 471,698 | $27 | $12.5M | Form 4 ↗ | ||
| Bjorkquist Jeanette M | Sell S | March 30, 2026 | March 31, 2026 | 1d | 16 | $27 | $440 | Form 4 ↗ | ||
| Bjorkquist Jeanette M | Sell S | March 30, 2026 | March 31, 2026 | 1d | 312 | $27 | $8,315 | Form 4 ↗ | ||
| Bjorkquist Jeanette M | Other A | March 29, 2026 | March 31, 2026 | 2d | 6,500 | — | — | Form 4 ↗ | ||
| White Nicole S | Sell S | March 30, 2026 | March 31, 2026 | 1d | 9 | $27 | $247 | Form 4 ↗ | ||
| White Nicole S | Sell S | March 30, 2026 | March 31, 2026 | 1d | 188 | $27 | $5,010 | Form 4 ↗ | ||
| White Nicole S | Other A | March 29, 2026 | March 31, 2026 | 2d | 26,000 | — | — | Form 4 ↗ | ||
| Gaggar Anuj | Other A | March 29, 2026 | March 31, 2026 | 2d | 26,000 | — | — | Form 4 ↗ | ||
| Delaney William E IV | Other A | March 29, 2026 | March 31, 2026 | 2d | 26,000 | — | — | Form 4 ↗ | ||
| Okazaki Jason A | Other A | March 29, 2026 | March 31, 2026 | 2d | 94,250 | — | — | Form 4 ↗ | ||
| GILEAD SCIENCES, INC. | Option / conversion P | August 8, 2025 | October 3, 2025 | 56d | 1,147,960 | — | — | latederivative | Form 4 ↗ | |
| GILEAD SCIENCES, INC. | Option / conversion P | August 8, 2025 | October 3, 2025 | 56d | 1,147,960 | — | — | latederivative | Form 4 ↗ | |
| GILEAD SCIENCES, INC. | Buy P | August 8, 2025 | October 3, 2025 | 56d | 2,295,920 | — | — | late | Form 4 ↗ |
Congressional trades
No member of Congress has disclosed a trade in this ticker in the filings we have parsed.
Related stocks
Tickers traded by the same people who traded ASMB, by number of filers in common. It shows overlap in public filings and nothing else.
- XLO Xilio Therapeutics, Inc. 1 filer in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 19 | 25 | October 3, 2025 | June 18, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.
Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.