Updated Jul 16, 2026 · Last SEC filing 2026-07-06
REGENXBIO Inc. (RGNX) has filed 13 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-06. 6 Form 8-K material event filings were reported by RGNX in the last 90 days. 2 Form 144 notices of proposed sale were filed for RGNX stock. InsiderAlpha tracks every RGNX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Biological Products, (No Diagnostic Substances) (SIC 2836) |
|---|---|
| SEC CIK | 0001590877 |
| Form 4 filings (90d) | 13 |
|---|---|
| Form 8-K filings (90d) | 6 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-07-06 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| PAKOLA STEVE | Chief Medical Officer | S — Open-market sale | 2.2K | $13.64 | $29K | SEC | |
| PAKOLA STEVE | Chief Medical Officer | M — Option exercise | 2.2K | $7.86 | $17K | SEC | |
| PAKOLA STEVE | Chief Medical Officer | M — Option exercise | 36.7K | $7.86 | $289K | SEC | |
| Simpson Curran | Chief Executive Officer | F — Tax withholding / forfeiture | 6.8K | $13.09 | $89K | SEC | |
| PAKOLA STEVE | Chief Medical Officer | S — Open-market sale | 36.7K | $12.86 | $472K | SEC | |
| Simpson Curran | Chief Executive Officer | A — Grant or award | 1.5K | $10.18 | $15K | SEC | |
| PAKOLA STEVE | Chief Medical Officer | S — Open-market sale | 19.6K | $11.04 | $216K | SEC | |
| Zachary Jennifer | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| MIGAUSKY GEORGE V | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| Glucksmann Alexandra | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| Mills Kenneth T. | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| Fox Allan M. | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| Tasse Daniel | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| Bennett Jean | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC | |
| STUMP DAVID C | Insider | A — Grant or award | 9.8K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for REGENXBIO Inc. (RGNX). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| PAKOLA STEVE | 8 | $1.19M |
| Simpson Curran | 3 | $111K |
| MIGAUSKY GEORGE V | 2 | — |
| Bennett Jean | 2 | — |
| KARABELAS ARGERIS N | 2 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in RGNX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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