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 |
| 2026-01-07 Sale | 2026-01-08 4:03 pm | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 1,500 | $800 | $1,200,000 | 4,564 (Direct) | View |
| 2025-11-20 Sale | 2025-11-24 4:05 pm | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 760 | $750 | $570,000 | 2,304 (Direct) | View |
| 2025-11-07 Sale | 2025-11-10 4:37 pm | REGENERON PHARMACEUTICALS INC. | REGN | Pitofsky Jason VP Controller | 431 | $651.43 | $280,766 | 4,443 (Indirect Direct) | View |
| 2025-10-29 Sale | 2025-10-31 4:09 pm | REGENERON PHARMACEUTICALS INC. | REGN | POON CHRISTINE A Director | 6,500 | $654.27 | $4,252,745 | 7,776 (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 |
| 2026-01-07 Exercise | 2026-01-08 4:03 pm | N/A 2030-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 1,500 | $0 | 4,564 (Direct) | View |
| 2026-01-07 Exercise | 2026-01-08 4:03 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 1,500 | $374.12 | 4,564 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:21 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Zoghbi Huda Y Director | 2,117 | $0 | 3,665 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:18 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Thompson Craig B. Director | 2,117 | $0 | 2,737 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:16 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | SING GEORGE L Director | 2,117 | $0 | 35,119 (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 |
| 2026-01-02 Option Award | 2026-01-06 4:14 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Schenkein David P Director | 2,117 | $0 | 2,565 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:13 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | GOLDSTEIN JOSEPH L Director | 2,117 | $0 | 8,665 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:12 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | RYAN ARTHUR F Director | 2,117 | $0 | 19,865 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:11 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | COLES N ANTHONY Director | 2,117 | $0 | 3,676 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:10 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | BROWN MICHAEL S Director | 2,117 | $0 | 14,827 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:08 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 2,117 | $0 | 3,665 (Direct) | View |
| 2026-01-02 Option Award | 2026-01-06 4:03 pm | N/A 2036-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | POON CHRISTINE A Director | 2,117 | $0 | 7,181 (Direct) | View |
| 2025-12-31 Exercise | 2026-01-05 5:54 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | 28,570 | $0 | 1,721,022 (Direct) | View |
| 2025-12-31 Tax Withholding | 2026-01-05 5:54 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | 28,570 | $772.09 | 1,721,022 (Direct) | View |
| 2025-12-31 Exercise | 2026-01-05 5:53 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | 28,570 | $0 | 1,283,058 (Direct) | View |
| 2025-12-31 Tax Withholding | 2026-01-05 5:53 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | 28,570 | $772.09 | 1,283,058 (Direct) | View |
| 2025-12-30 Exercise | 2025-12-31 5:05 pm | N/A 2026-01-04 | REGENERON PHARMACEUTICALS INC. | REGN | SING GEORGE L Director | 9,212 | $0 | 33,002 (Direct) | View |
| 2025-12-30 Exercise | 2025-12-31 5:05 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | SING GEORGE L Director | 9,212 | $520.01 | 33,002 (Direct) | View |
| 2025-12-30 Tax Withholding | 2025-12-31 5:05 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | SING GEORGE L Director | 6,188 | $774.03 | 33,002 (Direct) | View |
| 2025-12-09 Tax Withholding | 2025-12-11 4:34 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Van Plew Daniel P EVP & General Mgr, Industrial | 2,552 | $701.51 | 35,178 (Direct) | View |
| 2025-12-09 Tax Withholding | 2025-12-11 4:32 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 4,229 | $701.51 | 52,208 (Direct) | View |
| 2025-12-09 Tax Withholding | 2025-12-11 4:30 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | McCourt Marion EVP Commercial | 1,021 | $701.51 | 14,546 (Direct) | View |
| 2025-12-09 Exercise | 2025-12-11 4:27 pm | N/A 2025-12-16 | REGENERON PHARMACEUTICALS INC. | REGN | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | 146,815 | $0 | 1,125,945 (Direct) | View |
| 2025-12-09 Tax Withholding | 2025-12-11 4:27 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | 131,874 | $701.51 | 1,125,945 (Direct) | View |
| 2025-12-09 Exercise | 2025-12-11 4:27 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | 146,815 | $555.67 | 1,125,945 (Direct) | View |
| 2025-12-09 Exercise | 2025-12-11 4:23 pm | N/A 2025-12-16 | REGENERON PHARMACEUTICALS INC. | REGN | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | 172,723 | $0 | 687,981 (Direct) | View |
| 2025-12-09 Tax Withholding | 2025-12-11 4:23 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | 155,145 | $701.51 | 687,981 (Direct) | View |
| 2025-12-09 Exercise | 2025-12-11 4:23 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | 172,723 | $555.67 | 687,981 (Direct) | View |
| 2025-12-08 Tax Withholding | 2025-12-09 5:38 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Pitofsky Jason VP Controller | 989 | $712.94 | 7,779 (Direct) | View |
| 2025-12-05 Option Award | 2025-12-09 5:38 pm | N/A 2035-12-05 | REGENERON PHARMACEUTICALS INC. | REGN | Pitofsky Jason VP Controller | 4,325 | $0 | 7,779 (Direct) | View |
| 2025-12-08 Tax Withholding | 2025-12-09 4:31 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Van Plew Daniel P EVP & General Mgr, Industrial | 1,906 | $712.94 | 56,045 (Direct) | View |
| 2025-12-05 Option Award | 2025-12-09 4:31 pm | N/A 2035-12-05 | REGENERON PHARMACEUTICALS INC. | REGN | Van Plew Daniel P EVP & General Mgr, Industrial | 22,030 | $0 | 56,045 (Direct) | View |
| 2025-12-08 Tax Withholding | 2025-12-09 4:17 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 1,699 | $712.94 | 74,752 (Direct) | View |
| 2025-12-05 Option Award | 2025-12-09 4:17 pm | N/A 2035-12-05 | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 22,030 | $0 | 74,752 (Direct) | View |
| 2025-12-08 Tax Withholding | 2025-12-09 4:10 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | McCourt Marion EVP Commercial | 1,336 | $712.94 | 27,777 (Direct) | View |
| 2025-12-05 Option Award | 2025-12-09 4:10 pm | N/A 2035-12-05 | REGENERON PHARMACEUTICALS INC. | REGN | McCourt Marion EVP Commercial | 14,686 | $0 | 27,777 (Direct) | View |
| 2025-12-08 Tax Withholding | 2025-12-09 4:09 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | LAROSA JOSEPH J EVP General Counsel and Secret | 1,396 | $712.94 | 54,525 (Direct) | View |
| 2025-12-05 Option Award | 2025-12-09 4:09 pm | N/A 2035-12-05 | REGENERON PHARMACEUTICALS INC. | REGN | LAROSA JOSEPH J EVP General Counsel and Secret | 14,686 | $0 | 54,525 (Direct) | View |
| 2025-12-08 Tax Withholding | 2025-12-09 4:08 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Fenimore Christopher R. EVP Finance CFO | 992 | $712.94 | 36,719 (Direct) | View |
| 2025-12-05 Option Award | 2025-12-09 4:08 pm | N/A 2035-12-05 | REGENERON PHARMACEUTICALS INC. | REGN | Fenimore Christopher R. EVP Finance CFO | 17,951 | $0 | 36,719 (Direct) | View |
| 2025-11-20 Exercise | 2025-11-24 4:07 pm | N/A 2025-12-16 | REGENERON PHARMACEUTICALS INC. | REGN | LAROSA JOSEPH J EVP General Counsel and Secret | 14,450 | $0 | 41,234 (Direct) | View |
| 2025-11-20 Tax Withholding | 2025-11-24 4:07 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | LAROSA JOSEPH J EVP General Counsel and Secret | 12,686 | $736.77 | 41,234 (Direct) | View |
| 2025-11-20 Exercise | 2025-11-24 4:07 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | LAROSA JOSEPH J EVP General Counsel and Secret | 14,450 | $555.67 | 41,234 (Direct) | View |
| 2025-11-20 Exercise | 2025-11-24 4:05 pm | N/A 2029-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 760 | $0 | 2,304 (Direct) | View |
| 2025-11-20 Exercise | 2025-11-24 4:05 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | Bassler Bonnie L Director | 760 | $371.4 | 2,304 (Direct) | View |
| 2025-10-29 Exercise | 2025-10-31 4:09 pm | N/A 2026-01-04 | REGENERON PHARMACEUTICALS INC. | REGN | POON CHRISTINE A Director | 9,212 | $0 | 7,776 (Direct) | View |
| 2025-10-29 Exercise | 2025-10-31 4:09 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | POON CHRISTINE A Director | 9,212 | $520.01 | 7,776 (Direct) | View |
| 2025-10-29 Exercise | 2025-10-31 4:06 pm | N/A 2025-12-16 | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 35,000 | $0 | 54,416 (Direct) | View |
| 2025-10-30 Gift | 2025-10-31 4:06 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 1,538 | $0 | 54,416 (Direct) | View |
| 2025-10-29 Tax Withholding | 2025-10-31 4:06 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 32,490 | $648.82 | 54,416 (Direct) | View |
| 2025-10-29 Exercise | 2025-10-31 4:06 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | MURPHY ANDREW J EVP Research | 35,000 | $555.67 | 54,416 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 5:42 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Schenkein David P Director | 2,124 | $0 | 2,406 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:13 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Thompson Craig B. Director | 2,124 | $0 | 2,578 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:12 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | COLES N ANTHONY Director | 2,124 | $0 | 3,517 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:11 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | Zoghbi Huda Y Director | 2,124 | $0 | 3,506 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:08 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | RYAN ARTHUR F Director | 2,124 | $0 | 19,706 (Direct) | View |
| 2024-12-20 Acquisition | 2025-01-06 4:07 pm | N/A N/A | REGENERON PHARMACEUTICALS INC. | REGN | POON CHRISTINE A Director | 14 | $0 | 4,310 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:07 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | POON CHRISTINE A Director | 2,124 | $0 | 4,310 (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 |
| 2025-01-02 Option Award | 2025-01-06 4:06 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | GOLDSTEIN JOSEPH L Director | 2,124 | $0 | 8,506 (Direct) | View |
| 2025-01-02 Option Award | 2025-01-06 4:05 pm | N/A 2035-01-02 | REGENERON PHARMACEUTICALS INC. | REGN | BROWN MICHAEL S Director | 2,124 | $0 | 14,668 (Direct) | View |