Karyopharm Therapeutics's top three insider shareholders as of April 17, 2026 are Michael Kauffman (Chief Executive Officer, 1.61Mn shares), Richard A. Paulson (President And Ceo, 1.16Mn shares), Sharon Shacham (Chief Scientific Officer, 958.13K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Michael Kauffman | Chief Executive Officer | 713,757 | 898,131 | 02 Mar, 2022 |
| Richard A. Paulson | President And Ceo | 1,164,409 | 0 | 04 Mar, 2024 |
| 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 | 398,756 | 0 | 04 Mar, 2024 |
| Sohanya Roshan Cheng | Evp Chief Commercial Officer | 393,509 | 0 | 04 Mar, 2024 |
| Michael Mason | Evp, Cfo Treasurer | 391,054 | 0 | 05 Sep, 2024 |
| Reshma Rangwala | Evp Chief Medical Officer | 349,720 | 0 | 04 Mar, 2024 |
| Stuart Poulton | Evp, Chief Development Officer | 329,511 | 0 | 04 Mar, 2024 |
| Michael Mano | Svp, General Counselsecretary | 277,852 | 0 | 04 Mar, 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 | Richard A. Paulson | Common Stock | D | 12,361 | $9.41 | 267,030 | D | S |
| 02 Mar, 2026 | Sohanya Roshan Cheng | Common Stock | D | 4,604 | $9.41 | 107,317 | D | S |
| 02 Mar, 2026 | Kristin Abate | Common Stock | D | 559 | $9.41 | 22,063 | 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 |
| 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 | Sohanya Roshan Cheng | Common Stock | A | 32,415 | $0.00 | 111,921 | D | A |
| 31 Jan, 2026 | Michael Mano | Common Stock | A | 32,415 | $0.00 | 97,490 | D | A |
| 31 Jan, 2026 | Stuart Poulton | Common Stock | A | 32,415 | $0.00 | 99,807 | D | A |
| 31 Jan, 2026 | Lori Macomber | Common Stock | A | 32,415 | $0.00 | 86,731 | D | A |
| 31 Jan, 2026 | Reshma Rangwala | Common Stock | A | 32,415 | $0.00 | 61,805 | 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 | Sohanya Roshan Cheng | Common Stock | A | 43,650 | $0.00 | 79,506 | D | A |
| 15 Oct, 2025 | Kristin Abate | Common Stock | A | 12,799 | $0.00 | 22,845 | D | A |
| 15 Oct, 2025 | Lori Macomber | Common Stock | A | 43,650 | $0.00 | 54,316 | D | A |