Michael L Speiser has an estimated net worth of $2.6 Billion. This is based on reported shares across multiple companies, which include QUINSTREET, INC, CARDICA INC, THRESHOLD PHARMACEUTICALS INC, CORCEPT THERAPEUTICS INC, Mattersight Corp, Astera Labs, Inc., Snowflake Inc., Pure Storage, Inc., Yext, Inc., Restoration Robotics Inc, Forty Seven, Inc., and Workday, Inc..

2018 was Michael L Speiser's most active year for acquiring shares with 38 total transactions. Michael L Speiser's most active month to acquire stocks was the month of September. 2025 was Michael L Speiser's most active year for disposing of shares, totalling 175 transactions. Michael L Speiser's most active month to dispose stocks was the month of September. 2017 saw Michael L Speiser paying a total of $46,943,350.92 for 19,352,005 shares, this is the most they've acquired in one year. In 2021 Michael L Speiser cashed out on 60,893,625 shares for a total of $300,947,650.07, their largest year based on trade value.