Form 4 Filing for Robert J. Chersi

This filing details a grant of 1,288 restricted stock units (RSUs) to Robert J. Chersi, a director at Acadian Asset Management Inc. The RSUs were granted on June 12, 2026, under the company's 2026 Equity Incentive Plan. Each RSU represents a right to receive one share of common stock. These units are set to vest on the earlier of June 12, 2027, or the date of the 2027 annual meeting of stockholders. The transaction is reported on Form 4, with a post-transaction ownership of 1,288 shares. The filing was signed on June 15, 2026.