Whetstone Capital Advisors Reduces Stake in Health Catalyst, Inc. to 4.5%

Whetstone Capital Advisors, LLC, along with its manager David Atterbury, filed an Amendment No. 2 to their Schedule 13D regarding Health Catalyst, Inc. (HCAT). As of the event date on June 4, 2026, the reporting persons beneficially own 3,285,690 shares of common stock, representing approximately 4.5% of the class. This figure includes 1,515,000 shares receivable upon the exercise of long options. The filing indicates a decrease in holdings from the previously reported 4,268,141 shares, bringing their ownership below the 5% threshold. The shares were acquired using approximately $7.83 million of working capital from private investment funds managed by Whetstone. Transactions leading to this change were executed in the open market within the 60 days preceding the filing. Whetstone Capital Advisors serves as the investment advisor to these funds, and David Atterbury maintains shared voting and dispositive power over the securities.