Form 4 Filing for Advantage Solutions Inc. by Virginie Costa

This filing reports a transaction by Virginie Costa, a director at Advantage Solutions Inc. On May 27, 2026, Ms. Costa acquired 4,477 shares of Class A Common Stock through restricted stock units (RSUs) that vested on that date. These RSUs represent a contingent right to receive Class A Common Stock upon vesting, scheduled for the earlier of the one-year anniversary of the grant date or the day before the first annual stockholder meeting after the grant date. The acquisition was made at a price of $0.00 per share. Following this transaction, Ms. Costa owns 18,655 shares of Class A Common Stock. It is noted that the reported share amounts reflect a 1-for-25 reverse stock split effected by the issuer on March 26, 2026.