SCHLEIFER LEONARD S 4
4 · REGENERON PHARMACEUTICALS, INC. · Filed Dec 11, 2025
Insider Transaction Report
Form 4
SCHLEIFER LEONARD S
DirectorCEO and President10% Owner
Transactions
- Exercise/Conversion
Common Stock
2025-12-09$555.67/sh+172,723$95,976,989→ 369,668 total - Tax Payment
Common Stock
2025-12-09$701.51/sh−155,145$108,835,769→ 214,523 total - Exercise/Conversion
Non-Qualified Stock Option (right to buy)
2025-12-09−172,723→ 0 totalExercise: $555.67Exp: 2025-12-16→ Common Stock (172,723 underlying)
Holdings
- 127,484(indirect: By 2024 GRAT)
Common Stock
- 300,000(indirect: By 2025 GRAT)
Common Stock
- 5,989(indirect: By 401(k))
Common Stock
- 39,985(indirect: By Trust)
Common Stock
Footnotes (1)
- [F1]The stock option award vested in four equal annual installments, commencing one year after the date of grant.