May 13, 2024 · Form 4 insider transaction
SCHLEIFER LEONARD S sold 144,433 shares of Regeneron Pharmaceuticals, Inc. at $976.79 per share, a transaction worth $141.08M. The trade was recorded as shares withheld for taxes under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c) adopted on February 5, 2024.