Oscar Health Director Mario Schlosser's Major Stock Transactions Under 10b5-1 Plan

Oscar Health, Inc. director Mario Schlosser filed a Form 4 disclosing significant stock transactions executed on June 23, 2026, pursuant to a Rule 10b5-1 trading plan adopted on March 24, 2026. The transactions involved complex equity movements including: exercise of 660,000 stock options at $9.75 per share to acquire Class B common stock, conversion of 880,000 Class B shares to Class A shares, and subsequent sales of approximately 880,000 Class A shares at weighted average prices ranging from $28.95 to $30.09. Additionally, three family dynasty trusts (Noah, Siena, and Family Dynasty Trusts) engaged in similar conversion and sale transactions. Following these transactions, Schlosser's direct holdings decreased to 480,866 Class A shares, while maintaining significant derivative positions. All transactions were executed under a pre-established 10b5-1 trading plan, providing regulatory compliance for the substantial insider trading activity.