Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-09-02 Sale | 2026-09-03 4:47 pm | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 400 | $850 | $340,000 | 1,761 (Direct) | View |
| 2026-08-10 Sale | 2026-08-12 4:16 pm | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 400 | $800 | $320,000 | 2,161 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-09-02 Exercise | 2026-09-03 4:47 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 400 | $0 | 1,761 (Direct) | View |
| 2026-09-02 Exercise | 2026-09-03 4:47 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 400 | $719.37 | 1,761 (Direct) | View |
| 2026-08-10 Exercise | 2026-08-12 4:16 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 400 | $0 | 2,161 (Direct) | View |
| 2026-08-10 Exercise | 2026-08-12 4:16 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 400 | $719.37 | 2,161 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:16 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 2,117 | $0 | 2,565 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:06 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 2,124 | $0 | 2,406 (Direct) | View |
| 2024-01-02 Option Award | 2024-01-04 4:16 pm | N/A 2034-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 550 | $0 | 790 (Direct) | View |
| 2023-09-08 Option Award | 2023-09-12 4:03 pm | N/A 2033-09-08 | REGENERON PHARMACEUTICALS INC. | REGN | Guarini Kathryn Director | 2,979 | $0 | 2,979 (Direct) | View |