Company profile
Karyopharm Therapeutics Inc. Insider Trading
KPTIEvery SEC Form 4 insider trading filing for Karyopharm Therapeutics Inc. (KPTI) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001503802
- Filings
- 145
- Insiders
- 16
- Last filing
- 2026-09-01
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $38 across 1 transaction.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Karyopharm Therapeutics Inc. insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $1.7M.
90 day insight
Over the last 90 days, Karyopharm Therapeutics Inc. insiders sold $1K across 2 transactions with no open-market purchases.
- Most active insider: Stuart Poulton with 1 transaction totaling $1K.
- Largest single sale: $1K by Stuart Poulton on Jul 28, 2026.
Activity skews bearish — sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | Kristin Abate | KPTI | Sale | 19 | $2.02 | $38 |
| Jul 28, 2026 | Stuart Poulton | KPTI | Sale | 189 | $7.10 | $1K |
| May 21, 2026 | Chen Schor | KPTI | Award | 15,508 | — | — |
| May 21, 2026 | Christy J. Oliger | KPTI | Award | 15,508 | — | — |
| May 21, 2026 | Garen G Bohlin | KPTI | Award | 15,508 | — | — |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Karyopharm Therapeutics Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →