Leonard S Schleifer has an estimated net worth of $1.37 Billion. This is based on reported shares in REGENERON PHARMACEUTICALS, INC..

2012 was Leonard S Schleifer's most active year for acquiring shares with 9 total transactions. Leonard S Schleifer's most active month to acquire stocks was the month of November. 2013 was Leonard S Schleifer's most active year for disposing of shares, totalling 59 transactions. Leonard S Schleifer's most active month to dispose stocks was the month of April. 2025 saw Leonard S Schleifer paying a total of $95,976,989.41 for 201,293 shares, this is the most they've acquired in one year. In 2024 Leonard S Schleifer cashed out on 433,408 shares for a total of $225,052,583.79, their largest year based on trade value.