Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| No transactions found | ||||||||||
Leonard S. Schleifer currently holds 595,077 shares of REGENERON PHARMACEUTICALS INC (REGN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Leonard S. Schleifer has been a net seller of REGN stock. They have purchased $0 and sold $461.4M worth of shares.
Leonard S. Schleifer's most recent insider trade was on Dec 31, 2025, when they sold 28,570 shares at $0.00 per share.
Leonard S. Schleifer serves as Executive at REGENERON PHARMACEUTICALS INC (REGN). They have executed 275 insider transactions totaling $461.4M over their tenure at the company.
Leonard S. Schleifer holds the position of Executive at REGENERON PHARMACEUTICALS INC, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 20 years and currently hold a stake valued at $0.
Leonard S. Schleifer has shown a selling trading pattern, with $0 in total purchases and $461.4M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by Leonard S. Schleifer was on May 13, 2024, when they sold $141.1M worth of REGN shares. This transaction involved 144,433 shares at $976.79 per share.
Leonard S. Schleifer currently owns 595,077 shares of REGENERON PHARMACEUTICALS INC (REGN), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Leonard S. Schleifer's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Leonard S. Schleifer has 275 Form 4 filings on record as an insider at REGENERON PHARMACEUTICALS INC.
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