Karyopharm Therapeutics's top three insider shareholders as of March 23, 2026 are Michael Kauffman (Director, 1.61Mn shares), Sharon Shacham (Chief Scientific Officer, 958.13K shares), Sharon Shacham (Chief Scientific Officer, 713.76K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Michael Kauffman | 713,757 | 898,131 | 02 Mar, 2022 | |
| Sharon Shacham | Chief Scientific Officer | 958,131 | 0 | 31 Mar, 2022 |
| Sharon Shacham | Chief Scientific Officer | 0 | 713,757 | 02 Mar, 2022 |
| Michael Mason | Evp, Cfo Treasurer | 391,054 | 0 | 05 Sep, 2024 |
| Richard A. Paulson | President And Ceo | 267,030 | 0 | 03 Mar, 2026 |
| Ran Frenkel | Evp, Chief Dev. Officer | 168,290 | 0 | 02 Mar, 2022 |
| Jatin Shah | Evp, Chief Medical Officer | 129,450 | 0 | 22 Feb, 2022 |
| Stephen Mitchener | Svp, Chief Business Officer | 128,313 | 0 | 02 Mar, 2023 |
| Sohanya Roshan Cheng | Evp Chief Commercial Officer | 107,317 | 0 | 03 Mar, 2026 |
| Stuart Poulton | Evp, Chief Development Officer | 94,328 | 0 | 03 Mar, 2026 |
| Michael Mano | Evp, Closecretary | 93,964 | 0 | 03 Mar, 2026 |
| Lori Macomber | Evp, Cfo Treasurer | 85,105 | 0 | 04 Feb, 2026 |
| Reshma Rangwala | Evp Chief Medical Officer | 56,739 | 0 | 03 Mar, 2026 |
| Garen G Bohlin | 45,140 | 0 | 12 Sep, 2023 | |
| Kristin Abate | Chief Accounting Officer | 22,063 | 0 | 03 Mar, 2026 |
| Barry E Greene | 13,606 | 0 | 15 Aug, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Michael Mano | Common Stock | D | 3,526 | $9.41 | 93,964 | D | S |
| 02 Mar, 2026 | Stuart Poulton | Common Stock | D | 5,101 | $9.41 | 94,328 | D | S |
| 02 Mar, 2026 | Reshma Rangwala | Common Stock | D | 5,066 | $9.41 | 56,739 | D | S |
| 02 Mar, 2026 | Richard A. Paulson | Common Stock | D | 12,361 | $9.41 | 267,030 | D | S |
| 02 Mar, 2026 | Kristin Abate | Common Stock | D | 559 | $9.41 | 22,063 | D | S |
| 02 Mar, 2026 | Sohanya Roshan Cheng | Common Stock | D | 4,604 | $9.41 | 107,317 | D | S |
| 17 Feb, 2026 | Stuart Poulton | Common Stock | D | 378 | $8.63 | 99,429 | D | S |
| 05 Feb, 2026 | Richard A. Paulson | Common Stock | A | 81,060 | $0.00 | 279,391 | D | A |
| 03 Feb, 2026 | Lori Macomber | Common Stock | D | 1,626 | $6.30 | 85,105 | D | S |
| 31 Jan, 2026 | Michael Mano | Common Stock | A | 32,415 | $0.00 | 97,490 | D | A |
| 31 Jan, 2026 | Reshma Rangwala | Common Stock | A | 32,415 | $0.00 | 61,805 | D | A |
| 31 Jan, 2026 | Stuart Poulton | Common Stock | A | 32,415 | $0.00 | 99,807 | D | A |
| 31 Jan, 2026 | Sohanya Roshan Cheng | Common Stock | A | 32,415 | $0.00 | 111,921 | D | A |
| 31 Jan, 2026 | Lori Macomber | Common Stock | A | 32,415 | $0.00 | 86,731 | D | A |
| 27 Jan, 2026 | Kristin Abate | Common Stock | A | 92 | $0.00 | 22,672 | D | A |
| 28 Jan, 2026 | Kristin Abate | Common Stock | D | 50 | $7.03 | 22,622 | D | S |
| 21 Jan, 2026 | Kristin Abate | Common Stock | D | 265 | $5.96 | 22,580 | D | S |
| 15 Oct, 2025 | Richard A. Paulson | Common Stock | A | 114,285 | $0.00 | 198,331 | D | A |
| 15 Oct, 2025 | Lori Macomber | Common Stock | A | 43,650 | $0.00 | 54,316 | D | A |
| 15 Oct, 2025 | Michael Mano | Common Stock | A | 43,650 | $0.00 | 65,075 | D | A |