As of March 23, 2026, Regenxbio's top three insider holders are Allan M. Fox (Director, 1.53Mn shares), Kenneth T. Mills (Director, 486.12K shares), Curran Simpson (Chief Executive Officer, 342.47K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Allan M. Fox | 0 | 1,529,981 | 27 Dec, 2021 | |
| Kenneth T. Mills | 486,118 | 0 | 29 Jan, 2026 | |
| Curran Simpson | Chief Executive Officer | 342,467 | 0 | 08 Jan, 2026 |
| Steve Pakola | Chief Medical Officer | 253,050 | 0 | 03 Feb, 2026 |
| Steve Pakola | Chief Medical Officer | 247,926 | 0 | 12 Mar, 2026 |
| Vittal Vasista | Chief Financial Officer | 246,534 | 0 | 21 Mar, 2024 |
| Olivier Danos | Chief Scientific Officer | 226,348 | 0 | 04 Apr, 2025 |
| Mitchell Chan | Chief Financial Officer | 127,717 | 0 | 08 Jan, 2026 |
| Craig Malzahn | Chief Technology Officer | 82,194 | 0 | 08 Jan, 2026 |
| Jennifer Zachary | 22,064 | 0 | 03 Jun, 2025 | |
| Jean Bennett | 19,054 | 0 | 03 Jun, 2025 | |
| Alexandra Glucksmann | 19,054 | 0 | 03 Jun, 2025 | |
| David C Stump | 19,054 | 0 | 03 Jun, 2025 | |
| Daniel Tasse | 19,054 | 0 | 03 Jun, 2025 | |
| Allan M. Fox | 19,054 | 0 | 03 Jun, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 10 Mar, 2026 | Steve Pakola | Common Stock | D | 5,124 | $10.35 | 247,926 | D | S |
| 01 Feb, 2026 | Steve Pakola | Common Stock | D | 5,267 | $11.16 | 253,050 | D | F |
| 01 Feb, 2026 | Steve Pakola | Common Stock | D | 5,267 | $11.16 | 253,050 | D | F |
| 27 Jan, 2026 | Kenneth T. Mills | Common Stock | A | 225,000 | $13.09 | 707,871 | D | M |
| 27 Jan, 2026 | Kenneth T. Mills | Common Stock | D | 221,753 | $13.41 | 486,118 | D | F |
| 27 Jan, 2026 | Kenneth T. Mills | Stock Options (Right to Buy) | D | 225,000 | $0.00 | 225,000 | D | M |
| 06 Jan, 2026 | Craig Malzahn | Common Stock | A | 65,847 | $0.00 | 82,194 | D | A |
| 06 Jan, 2026 | Mitchell Chan | Common Stock | A | 73,749 | $0.00 | 127,717 | D | A |
| 06 Jan, 2026 | Curran Simpson | Common Stock | A | 144,864 | $0.00 | 342,467 | D | A |
| 06 Jan, 2026 | Steve Pakola | Common Stock | A | 65,847 | $0.00 | 258,317 | D | A |
| 06 Jan, 2026 | Steve Pakola | Common Stock | A | 65,847 | $0.00 | 258,317 | D | A |
| 06 Jan, 2026 | Steve Pakola | Stock Options (Right to buy) | A | 35,402 | $0.00 | 35,402 | D | A |
| 06 Jan, 2026 | Mitchell Chan | Stock Options (Right to buy) | A | 39,650 | $0.00 | 39,650 | D | A |
| 06 Jan, 2026 | Craig Malzahn | Stock Options (Right to buy) | A | 35,402 | $0.00 | 35,402 | D | A |
| 06 Jan, 2026 | Curran Simpson | Stock Options (Right to buy) | A | 233,651 | $0.00 | 233,651 | D | A |
| 06 Jan, 2026 | Steve Pakola | Stock Options (Right to buy) | A | 35,402 | $0.00 | 35,402 | D | A |
| 02 Jan, 2026 | Steve Pakola | Common Stock | D | 18,247 | $14.40 | 192,470 | D | F |
| 02 Jan, 2026 | Craig Malzahn | Common Stock | D | 1,238 | $14.40 | 16,347 | D | F |
| 02 Jan, 2026 | Curran Simpson | Common Stock | D | 18,559 | $14.40 | 197,603 | D | F |
| 02 Jan, 2026 | Steve Pakola | Common Stock | D | 18,247 | $14.40 | 192,470 | D | F |