REGENERON PHARMACEUTICALS, INC. (REGN) has 435 open-market insider trades by 32 insiders since 2006. The most active filer is Joseph L. Goldstein, Director.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Sanofi | 10% Owner | — | 45 | $5.3B | 2020-06-09 |
| P. Roy Vagelos | Dir | — | 22 | $327.2M | 2023-04-03 |
| George Yancopoulos | ChairmanPresCSO | — | 7 | $246.2M | 2025-12-31 |
| Leonard S. Schleifer | CEOChairmanPres | — | 5 | $235.8M | 2025-12-31 |
| Daniel P. van Plew | VP | — | 22 | $205.6M | 2025-12-09 |
| Neil Stahl | VP | — | 30 | $195.4M | 2024-12-16 |
| George L. Sing | Dir | — | 35 | $191.2M | 2026-01-02 |
| Christine A. Poon | Dir | — | 9 | $139.5M | 2026-01-02 |
| Arthur F. Ryan | Dir | — | 13 | $89.5M | 2026-07-02 |
| Marc Tessier-Lavigne | Dir | — | 11 | $67.8M | 2023-01-03 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Andrew J. Murphy | CSO | Sell | $3.2M | 2026-10-14 |
| Kathryn Guarini | Director | Sell | $340K | 2026-09-02 |
| Marion McCourt | VP | Sell | $2.0M | 2026-09-02 |
| Kathryn Guarini | Director | Sell | $320K | 2026-08-10 |
| Huda Y. Zoghbi | Director | Sell | $640K | 2026-08-10 |
| Arthur F. Ryan | Director | Sell | $130K | 2026-07-02 |
Companies that share insiders with REGN, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Arthur F. Ryan | Director | Sell | $71K | 2026-05-01 |
| Arthur F. Ryan | Director | Sell | $78K | 2026-04-01 |
| Arthur F. Ryan | Director | Sell | $79K | 2026-03-02 |
| Huda Y. Zoghbi | Director | Sell | $1.3M | 2026-02-19 |
| Jason Pitofsky | Controller | Sell | $1.6M | 2026-02-09 |
| Arthur F. Ryan | Director | Sell | $78K | 2026-02-09 |
| Bonnie L. Bassler | Director | Sell | $1.2M | 2026-01-07 |
| Bonnie L. Bassler | Director | Sell | $570K | 2025-11-20 |
| Jason Pitofsky | VP & Controller | Sell | $562K | 2025-11-07 |