Transactions
1
Insider / Lyell Immunopharma, Inc.
Shook David
Chief Medical Officer at Lyell Immunopharma, Inc.
- Company
- Lyell Immunopharma, Inc.
- Ticker
- LYEL
- First filing on record
- September 10, 2026
- Latest trade on record
- September 10, 2026
- SEC filings
- EDGAR ↗
Shook David, Chief Medical Officer at Lyell Immunopharma, Inc., has disclosed 1 transaction in LYEL since September 10, 2026: 0 purchases (0 open-market buys) and 1 sale, worth about $6,350 at the reported prices. The latest was filed September 10, 2026, 0 days after the trade.
Open-market buys
0
Sales
1
Avg. disclosure lag
0.0d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)
In the last 12 months Shook David made no purchases and 1 sale worth $6K. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Shook David has traded 1 stock on record; the largest by dollars is LYEL.
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 1 | 500 | $6,350 |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 1 | 0 | 1 · $6,350 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| LYEL | Sell S | September 10, 2026 | September 10, 2026 | 0d | 500 | $13 | $6,350 | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 10, 2026 | Form 4 | 0001959742-26-000003 | 1 | published | EDGAR ↗ |
Other insiders at Lyell Immunopharma, Inc.
- GLAXOSMITHKLINE PLC Insider 33 rows
- Aguirre Jarrad Mattieu Chief Medical Officer 2 rows
- Hill Stephen J. Chief Operating Officer 2 rows
- Lee Gary K. Chief Scientific Officer 2 rows
- Seely Lynn President and CEO 2 rows
- Bulis Veronica Sanchez VP, Corporate Controller 1 row
- Innovative Cellular Therapeutics Holdings Ltd Insider 1 row
Everyone on file, with contracts and lobbying under the company's name: Lyell Immunopharma, Inc..
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 | 1 | 1 | September 10, 2026 | September 10, 2026 | Form 4 list on EDGAR |
Site built October 22, 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.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.