CIK 0000872589 · Large accelerated filer
REGENERON PHARMACEUTICALS, INC.
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- REGN
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- NY
- Entity type
- operating
- EIN
- 133444607
- Phone
- 9148477000
- Business address
- 777 OLD SAW MILL RIVER ROAD, TARRYTOWN, NY, 10591
- Former names
- REGENERON PHARMACEUTICALS INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $51,901,544
- in 11 filings, $8.6M under 10b5-1 plans
Net −$51,901,544. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-01-02 | BROWN MICHAEL S Director | Grant or award | +155 | 1,703 | ||
| 2026-01-02 | BROWN MICHAEL S Director | Grant or award · Non-Qualified Stock Option (right to buy) | +1,962 | 1,962 | ||
| 2025-12-31 | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | Option exercise | +28,570 | 339,030 | ||
| 2025-12-31 | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | Shares withheld for taxes | −28,570 | $772.09 | $22.1M | 310,460 |
| 2025-12-31 | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | Option exercise · 2020 Performance Stock Units | −28,570 | 595,077 | ||
| 2025-12-31 | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | Option exercise | +28,570 | 243,093 | ||
| 2025-12-31 | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | Shares withheld for taxes | −28,570 | $772.09 | $22.1M | 214,523 |
| 2025-12-31 | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | Option exercise · 2020 Performance Stock Units | −28,570 | 595,077 | ||
| 2025-12-30 | SING GEORGE L Director | Option exercise | +9,212 | $520.01 | $4.8M | 37,040 |
| 2025-12-30 | SING GEORGE L Director | Shares withheld for taxes | −6,188 | $774.03 | $4.8M | 30,852 |
| 2025-12-30 | SING GEORGE L Director | Option exercise · Non-Qualified Stock Option (right to buy) | −9,212 | 0 | ||
| 2025-12-09 | MURPHY ANDREW J EVP Research | Shares withheld for taxes | −4,229 | $701.51 | $3.0M | 47,833 |
| 2025-12-09 | McCourt Marion EVP Commercial | Shares withheld for taxes | −1,021 | $701.51 | $716K | 14,349 |
| 2025-12-09 | Van Plew Daniel P EVP & General Mgr, Industrial | Shares withheld for taxes | −2,552 | $701.51 | $1.8M | 21,673 |
| 2025-12-09 | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | Option exercise | +146,815 | $555.67 | $81.6M | 442,334 |
| 2025-12-09 | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | Shares withheld for taxes | −131,874 | $701.51 | $92.5M | 310,460 |
| 2025-12-09 | YANCOPOULOS GEORGE Bd. Co-Chair, President & CSO | Option exercise · Non-Qualified Stock Option (right to buy) | −146,815 | 0 | ||
| 2025-12-09 | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | Option exercise | +172,723 | $555.67 | $96.0M | 369,668 |
| 2025-12-09 | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | Shares withheld for taxes | −155,145 | $701.51 | $108.8M | 214,523 |
| 2025-12-09 | SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO | Option exercise · Non-Qualified Stock Option (right to buy) | −172,723 | 0 |
Page 11 of 49 · 971 trades