REGENXBIO Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Simpson Curran | Chief Executive Officer | Sale | 20,811 | $12.62 | $262,635 | 216,162 | Oct 9, 2025 |
| Simpson Curran | Chief Executive Officer | Sale | 7,624 | $10.03 | $76,469 | 236,973 | Sep 29, 2025 |
| Simpson Curran | Chief Executive Officer | Sale | 7,734 | $10.02 | $77,495 | 244,597 | Sep 10, 2025 |
| Malzahn Craig | Chief Technology Officer | Tax Withholding | 234 | $8.93 | $2,090 | 17,585 | Sep 1, 2025 |
| Chan Mitchell | Chief Financial Officer | Tax Withholding | 4,901 | $8.93 | $43,766 | 53,968 | Sep 1, 2025 |
| Christmas Patrick J. | Chief Strategy & Legal Officer | Tax Withholding | 4,699 | $8.19 | $38,485 | 151,411 | Aug 1, 2025 |
| Simpson Curran | Chief Executive Officer | Tax Withholding | 4,701 | $8.23 | $38,689 | 252,331 | Jul 1, 2025 |
| Fox Allan M. | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| Zachary Jennifer | — | Award / Grant | 7,768 | — | — | 22,064 | May 30, 2025 |
| Tasse Daniel | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| STUMP DAVID C | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| Mills Kenneth T. | — | Award / Grant | 7,768 | — | — | 482,871 | May 30, 2025 |
| MIGAUSKY GEORGE V | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| Glucksmann Alexandra | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| KARABELAS ARGERIS N | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| Bennett Jean | — | Award / Grant | 7,768 | — | — | 19,054 | May 30, 2025 |
| Mills Kenneth T. | — | Sale | 20,602 | $7.91 | $162,962 | 475,103 | May 12, 2025 |
| Mills Kenneth T. | — | Option Exercise | 30,752 | $3.76 | $115,628 | 475,103 | Mar 27, 2025 |
| Christmas Patrick J. | Chief Legal Officer | Tax Withholding | 4,700 | $8.07 | $37,929 | 156,110 | Feb 1, 2025 |
| PAKOLA STEVE | Chief Medical Officer | Tax Withholding | 5,263 | $8.07 | $42,472 | 210,717 | Feb 1, 2025 |
| Danos Olivier | Chief Scientific Officer | Tax Withholding | 5,452 | $8.07 | $43,998 | 226,348 | Feb 1, 2025 |
| PAKOLA STEVE | Chief Medical Officer | Award / Grant | 64,293 | — | — | 215,980 | Jan 2, 2025 |
| Danos Olivier | Chief Scientific Officer | Tax Withholding | 12,630 | $7.73 | $97,630 | 172,453 | Jan 2, 2025 |
| Simpson Curran | Chief Executive Officer | Award / Grant | 98,912 | — | — | 257,032 | Jan 2, 2025 |
| Christmas Patrick J. | Chief Legal Officer | Tax Withholding | 11,395 | $7.73 | $88,083 | 160,810 | Jan 2, 2025 |
| KARABELAS ARGERIS N | — | Sale | 10,000 | $10.11 | $101,100 | 11,286 | Oct 1, 2024 |
| Chan Mitchell | Chief Financial Officer | Award / Grant | 58,869 | — | — | 58,869 | Sep 16, 2024 |
| KARABELAS ARGERIS N | — | Sale | 9,300 | $11.50 | $106,950 | 11,986 | Sep 3, 2024 |
| Mills Kenneth T. | — | Option Exercise | 36,316 | $0.85 | $30,869 | 444,351 | Aug 8, 2024 |
| PAKOLA STEVE | Chief Medical Officer | Award / Grant | 58,386 | — | — | 165,578 | Aug 1, 2024 |
| Christmas Patrick J. | Chief Legal Officer | Award / Grant | 56,446 | — | — | 172,205 | Aug 1, 2024 |
| KARABELAS ARGERIS N | — | Sale | 100 | $15.00 | $1,500 | 11,286 | Aug 1, 2024 |
| Simpson Curran | Chief Executive Officer | Sale | 100 | $15.00 | $1,500 | 170,037 | Aug 1, 2024 |
| Danos Olivier | Chief Scientific Officer | Award / Grant | 1,363 | $9.95 | $13,562 | 126,216 | Aug 1, 2024 |
| KARABELAS ARGERIS N | — | Option Exercise | 11,000 | $12.74 | $140,140 | 22,286 | Jul 29, 2024 |
| Simpson Curran | Chief Executive Officer | Sale | 9,648 | $15.04 | $145,106 | 170,137 | Jul 29, 2024 |
| Mills Kenneth T. | — | Option Exercise | 12,221 | $3.76 | $45,951 | 420,256 | Jul 25, 2024 |
| Mills Kenneth T. | — | Sale | 2,210 | $13.77 | $30,432 | 408,035 | Jul 16, 2024 |
| Simpson Curran | Chief Executive Officer | Award / Grant | 56,458 | — | — | 179,785 | Jul 1, 2024 |
| KARABELAS ARGERIS N | — | Option Exercise | 10,000 | $3.76 | $37,600 | 21,286 | Jul 1, 2024 |
| Zachary Jennifer | — | Award / Grant | 4,790 | — | — | 14,296 | May 31, 2024 |
| MIGAUSKY GEORGE V | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| KARABELAS ARGERIS N | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| Glucksmann Alexandra | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| Bennett Jean | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| Fox Allan M. | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| Tasse Daniel | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| STUMP DAVID C | — | Award / Grant | 4,790 | — | — | 11,286 | May 31, 2024 |
| Mills Kenneth T. | President and CEO | Sale | 15,000 | $15.81 | $237,150 | 408,035 | May 14, 2024 |
| Mills Kenneth T. | President and CEO | Option Exercise | 15,000 | $3.76 | $56,400 | 423,035 | Apr 15, 2024 |