LAROSA JOSEPH J (CIK 1238303) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-21). Recent activity: Buy REGN (12,282 shares), Sell REGN (9,019 shares), Buy REGN (2,476 shares), Sell REGN (1,396 shares), Buy REGN (14,450 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | REGENERON PHARMACEUTICALS, INC. (REGN) | EVP General Counsel and Secret | Buy | 12,282 | $4.7M |
| 2026-08-21 | REGENERON PHARMACEUTICALS, INC. (REGN) | EVP General Counsel and Secret | Sell | 9,019 | $7.5M |
| 2025-12-09 | REGENERON PHARMACEUTICALS, INC. (REGN) | EVP General Counsel and Secret | Buy | 2,476 | $0 |
| 2025-12-09 | REGENERON PHARMACEUTICALS, INC. (REGN) | EVP General Counsel and Secret | Sell | 1,396 | $995,264 |
| 2025-11-24 | REGENERON PHARMACEUTICALS, INC. (REGN) | EVP General Counsel and Secret | Buy | 14,450 | $8.0M |
| 2025-11-24 | REGENERON PHARMACEUTICALS, INC. (REGN) | EVP General Counsel and Secret | Sell | 12,686 | $9.3M |
Source: SEC Form 4 filings · as of 2026-08-21