Updated Jul 16, 2026
Poulton Stuart has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $59K.
Stuart Poulton is the Executive Vice President and Chief Development Officer at Karyopharm Therapeutics Inc., a company focused on developing novel cancer therapies. He has been involved in the company's strategic development efforts, particularly in relation to its drug pipeline.
| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-15 | KPTI | Karyopharm Therapeutics Inc. | S — Open-market sale | 403 | $9.50 | $4K |
| 2026-05-15 | KPTI | Karyopharm Therapeutics Inc. | A — Grant or award | 896 | $0.00 | |
| 2026-03-03 | KPTI | Karyopharm Therapeutics Inc. | S — Open-market sale | 5.1K | $9.41 | $48K |
| 2026-02-19 | KPTI | Karyopharm Therapeutics Inc. | S — Open-market sale | 378 | $8.63 | $3K |
| 2026-02-03 | KPTI | Karyopharm Therapeutics Inc. | A — Grant or award | 32.4K | $0.00 | |
| 2025-10-15 | KPTI | Karyopharm Therapeutics Inc. | A — Grant or award | 39.7K | $0.00 | |
| 2025-09-12 | KPTI | Karyopharm Therapeutics Inc. | S — Open-market sale | 401 | $6.43 | $3K |
| 2025-09-12 | KPTI | Karyopharm Therapeutics Inc. | A — Grant or award | 888 | $0.00 | |
| 2025-07-29 | KPTI | Karyopharm Therapeutics Inc. | S — Open-market sale | 191 | $4.37 | $835 |
Stuart Poulton is the Executive Vice President and Chief Development Officer at Karyopharm Therapeutics Inc., a company focused on developing novel cancer therapies. He has been involved in the company's strategic development efforts, particularly in relation to its drug pipeline.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 5 open-market sales ($59K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Poulton Stuart profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.