Based on data from the past 90 days ending January 10, 2026, REGENXBIO's three largest insider shareholders are Director Allan M. Fox (1.55Mn shares), Director Kenneth T. Mills (482.87K shares), Chief Executive Officer Curran Simpson (342.47K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Allan M. Fox | 1,549,035 | 03 Jun, 2025 | |
| Kenneth T. Mills | 482,871 | 03 Jun, 2025 | |
| Curran Simpson | Chief Executive Officer | 342,467 | 08 Jan, 2026 |
| Steve Pakola | Chief Medical Officer | 258,317 | 08 Jan, 2026 |
| Vittal Vasista | Chief Financial Officer | 246,534 | 21 Mar, 2024 |
| Olivier Danos | Chief Scientific Officer | 226,348 | 04 Apr, 2025 |
| Patrick J. Christmas | Chief Strategy & Legal Officer | 215,367 | 08 Jan, 2026 |
| Mitchell Chan | Chief Financial Officer | 127,717 | 08 Jan, 2026 |
| Craig Malzahn | Chief Technology Officer | 82,194 | 08 Jan, 2026 |
| Jennifer Zachary | 22,064 | 03 Jun, 2025 | |
| Daniel Tasse | 19,054 | 03 Jun, 2025 | |
| David C Stump | 19,054 | 03 Jun, 2025 | |
| Alexandra Glucksmann | 19,054 | 03 Jun, 2025 | |
| Argeris N Karabelas | 19,054 | 03 Jun, 2025 | |
| Jean Bennett | 19,054 | 03 Jun, 2025 | |
| George V Migausky | 19,054 | 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 |
|---|---|---|---|---|---|---|---|---|
| 06 Jan, 2026 | Curran Simpson | Common Stock | A | 144,864 | $0.00 | 342,467 | D | A |
| 06 Jan, 2026 | Patrick J. Christmas | Common Stock | A | 73,749 | $0.00 | 215,367 | D | A |
| 06 Jan, 2026 | Steve Pakola | Common Stock | A | 65,847 | $0.00 | 258,317 | D | A |
| 06 Jan, 2026 | Mitchell Chan | Common Stock | A | 73,749 | $0.00 | 127,717 | D | A |
| 06 Jan, 2026 | Craig Malzahn | Common Stock | A | 65,847 | $0.00 | 82,194 | D | A |
| 02 Jan, 2026 | Curran Simpson | Common Stock | D | 18,559 | $14.40 | 197,603 | D | F |
| 02 Jan, 2026 | Patrick J. Christmas | Common Stock | D | 9,793 | $14.40 | 141,618 | D | F |
| 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 |
| 09 Oct, 2025 | Curran Simpson | Common Stock | D | 20,811 | $12.62 | 216,162 | D | S |
| 29 Sep, 2025 | Curran Simpson | Common Stock | D | 7,624 | $10.03 | 236,973 | D | S |
| 10 Sep, 2025 | Curran Simpson | Common Stock | D | 7,734 | $10.02 | 244,597 | D | S |
| 01 Sep, 2025 | Mitchell Chan | Common Stock | D | 4,901 | $8.93 | 53,968 | D | F |
| 01 Sep, 2025 | Mitchell Chan | - | - | 53,968 | D | |||
| 01 Sep, 2025 | Craig Malzahn | Common Stock | D | 234 | $8.93 | 17,585 | D | F |
| 01 Aug, 2025 | Patrick J. Christmas | - | - | 151,411 | D | |||
| 01 Aug, 2025 | Patrick J. Christmas | Common Stock | D | 4,699 | $8.19 | 151,411 | D | F |
| 01 Jul, 2025 | Curran Simpson | Common Stock | D | 4,701 | $8.23 | 252,331 | D | F |
| 30 May, 2025 | George V Migausky | - | - | 19,054 | D | |||
| 30 May, 2025 | George V Migausky | Common Stock | A | 7,768 | $0.00 | 19,054 | D | A |