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 |
|---|---|---|---|---|---|---|
| 2026-11-02 | Fenimore Christopher R. EVP Finance CFO | Shares withheld for taxes | −4,243 | $950.50 | $4.0M | 21,741 |
| 2026-11-02 | Fenimore Christopher R. EVP Finance CFO | Gift | −15 | 21,726 | ||
| 2026-11-02 | Fenimore Christopher R. EVP Finance CFO | Option exercise · Non-Qualified Stock Option (right to buy) | −6,000 | 0 | ||
| 2026-11-02 | LAROSA JOSEPH J EVP General Counsel and Secret | Option exercise | +12,283 | $381.92 | $4.7M | 52,058 |
| 2026-11-02 | LAROSA JOSEPH J EVP General Counsel and Secret | Shares withheld for taxes | −8,686 | $950.50 | $8.3M | 43,372 |
| 2026-11-02 | LAROSA JOSEPH J EVP General Counsel and Secret | Sale | −3,939 | $965.41 | $3.8M | 39,433 |
| 2026-11-02 | LAROSA JOSEPH J EVP General Counsel and Secret | Sale | −527 | $966.11 | $509K | 38,906 |
| 2026-11-02 | LAROSA JOSEPH J EVP General Counsel and Secret | Option exercise · Non-Qualified Stock Option (right to buy) | −12,283 | 0 | ||
| 2026-11-02 | SING GEORGE L Director | Option exercise | +7,830 | $376.69 | $2.9M | 38,837 |
| 2026-11-02 | SING GEORGE L Director | Option exercise | +7,439 | $380.95 | $2.8M | 46,276 |
| 2026-11-02 | SING GEORGE L Director | Sale | −1,224 | $960.57 | $1.2M | 45,052 |
| 2026-11-02 | SING GEORGE L Director | Sale | −540 | $961.85 | $519K | 44,512 |
| 2026-11-02 | SING GEORGE L Director | Sale | −2,522 | $962.61 | $2.4M | 41,990 |
| 2026-11-02 | SING GEORGE L Director | Sale | −4,338 | $963.47 | $4.2M | 37,652 |
| 2026-11-02 | SING GEORGE L Director | Sale | −2,670 | $964.57 | $2.6M | 34,982 |
| 2026-11-02 | SING GEORGE L Director | Sale | −7,073 | $965.38 | $6.8M | 27,909 |
| 2026-11-02 | SING GEORGE L Director | Sale | −1,522 | $966.27 | $1.5M | 26,387 |
| 2026-11-02 | SING GEORGE L Director | Sale | −1,040 | $967.07 | $1.0M | 25,347 |
| 2026-11-02 | SING GEORGE L Director | Sale | −200 | $970.18 | $194K | 25,147 |
| 2026-11-02 | SING GEORGE L Director | Option exercise · Non-Qualified Stock Option (right to buy) | −7,830 | 0 |
Page 2 of 49 · 971 trades