Shake Shack Inc. reported an insider ownership change for Stephanie Ann Sentell involving the company’s Class A common stock. The Form 4 was filed on July 17, 2026, and reports activity dated July 15, 2026. The reported transaction relates to restricted stock units previously granted to Ms. Sentell under her employment agreement with Shake Shack and the company’s 2015 Incentive Award Plan, as amended. On July 15, 2026, a portion of those RSUs vested, and Shake Shack withheld shares of Class A common stock to satisfy tax obligations arising from the vesting. This type of transaction is not described as an open-market sale; rather, it reflects shares retained by the issuer for tax withholding when equity compensation becomes taxable. The RSU award referenced in the filing vests in four equal annual installments on July 15 of each of 2025, 2026, 2027 and 2028, subject to Ms. Sentell’s continued service with Shake Shack. The July 15, 2026 event therefore corresponds to the second scheduled vesting installment under that award. The provided filing text does not include the number of shares withheld, the deemed price per share, the transaction code, or Ms. Sentell’s beneficial ownership following the transaction. The filing was signed on Ms. Sentell’s behalf by Ronald Palmese Jr., Esq., attorney-in-fact, on July 17, 2026.