Robert Joseph Ball, CEO and Executive Chairman of Shoulder Innovations, Inc., filed a Form 4 on November 2, 2026, reporting transactions in common stock and a stock option dated October 30, 2026.

Key Highlights

  • Option exercise: Ball acquired 66,757 shares of common stock via transaction code M at a conversion price of $2.4804 per share on October 30, 2026.
  • Tax withholding disposal: 29,639 shares were disposed of (transaction code F) at $20.44 per share on the same date.
  • Resulting direct ownership: Ball directly holds 417,942 shares of common stock following the reported transactions.
  • Remaining derivative position: Ball retains 242,999 stock options with an exercise price of $2.4804, expiring May 17, 2033.
  • Vesting schedule: According to the filing, the option vested as to one-fourth of the underlying shares on May 17, 2024, with remaining shares vesting in 36 equal monthly increments on the last day of each calendar month thereafter.
  • Filing capacity: Ball is identified as both a Director and an Officer (CEO and Executive Chairman) of Shoulder Innovations, Inc.

Ball's October 30, 2026 Transactions at Shoulder Innovations

According to the Form 4 filed with the SEC, Robert Joseph Ball exercised a stock option on October 30, 2026, acquiring 66,757 shares of common stock in Shoulder Innovations, Inc. (ticker: SI) at a conversion price of $2.4804 per share. The filing identifies the issuer as Shoulder Innovations, Inc. [SI], though the filing does not specify an exchange in the registered-securities table. The transaction is recorded under code M, indicating an exercise or conversion of a derivative security.

On the same date, the filing reports a disposition of 29,639 shares under transaction code F at a price of $20.44 per share. Transaction code F typically denotes shares withheld by the issuer to satisfy a tax obligation in connection with the vesting or exercise of a security, as reflected in the filing's table. Following both transactions, Ball's direct beneficial ownership in common stock stood at 417,942 shares, according to the filing.

In Table II, the filing discloses that following the exercise, Ball retains 242,999 stock options with the same exercise price of $2.4804 and an expiration date of May 17, 2033. The filing notes that the exercised option originally covered 66,757 shares and that the option "vested as to one-fourth of the underlying shares on May 17, 2024, and the remaining shares vest in 36 equal increments on the last day of each calendar month thereafter." The Form 4 was signed by Jeffrey Points as Attorney-in-Fact on November 2, 2026.

What Was Disclosed

The filing reports that Ball, as CEO and Executive Chairman, exercised 66,757 stock options and had 29,639 shares withheld at $20.44 each on October 30, 2026, leaving him with direct ownership of 417,942 common shares and 242,999 remaining options.