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 |
|---|---|---|---|---|---|---|
| 2026-04-01 | RYAN ARTHUR F Director | Sale 10b5-1 | −14 | $775.58 | $11K | 17,669 |
| 2026-04-01 | RYAN ARTHUR F Director | Sale 10b5-1 | −13 | $776.62 | $10K | 17,656 |
| 2026-04-01 | RYAN ARTHUR F Director | Sale 10b5-1 | −9 | $777.42 | $7K | 17,647 |
| 2026-04-01 | RYAN ARTHUR F Director | Sale 10b5-1 | −4 | $778.24 | $3K | 17,643 |
| 2026-04-01 | RYAN ARTHUR F Director | Sale 10b5-1 | −40 | $779.71 | $31K | 17,603 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −7 | $777.46 | $5K | 17,796 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −2 | $778.30 | $2K | 17,794 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −5 | $779.69 | $4K | 17,789 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −3 | $780.69 | $2K | 17,786 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −2 | $781.21 | $2K | 17,784 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −2 | $782.62 | $2K | 17,782 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −10 | $783.62 | $8K | 17,772 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −9 | $784.48 | $7K | 17,763 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −11 | $785.48 | $9K | 17,752 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −7 | $786.61 | $6K | 17,745 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −2 | $787.34 | $2K | 17,743 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −20 | $788.96 | $16K | 17,723 |
| 2026-03-02 | RYAN ARTHUR F Director | Sale 10b5-1 | −20 | $789.28 | $16K | 17,703 |
| 2026-02-19 | Zoghbi Huda Y Director | Option exercise 10b5-1 | +1,638 | $376.69 | $617K | 3,341 |
| 2026-02-19 | Zoghbi Huda Y Director | Sale 10b5-1 | −49 | $774.68 | $38K | 3,292 |
Page 7 of 49 · 971 trades