X0306 4 2023-03-01 0 0001000228 HENRY SCHEIN INC HSIC 0001194352 MLOTEK MARK E C/O HENRY SCHEIN, INC. 135 DURYEA ROAD MELVILLE NY 11747 1 1 0 0 EVP, Chief Strategic Officer Common Stock, par value $0.01 per share 2023-03-01 4 A 0 24051 0.00 A 105231 D Common Stock, par value $0.01 per share 870 I As Trustee of trusts for the benefit of family members. Common Stock, par value $0.01 per share 4091 I By 401(k) plan Grant of restricted stock units (RSU) pursuant to the Issuer's 2020 Stock Incentive Plan. Subject to certain exceptions, 50% will vest subject to (x) Issuer's achievement of a specified performance goal and (y) reporting person's continued perf. of services for the Issuer. 50% will vest subject to (x) passage of a specified period of time and (y) reporting person's continued perf. of services for the Issuer. With respect to the performance-based RSU, if the continued service requirement is satisfied and achievement of the perf. goal (x) exceeds 100% of target, the Issuer may issue additional vested shares of common stock in an amount that corresponds to the incremental percentage of the performance goal achieved in excess of 100% of target or (y) is less than 100% of target, the reporting person will surrender to the Issuer shares of common stock in an amount that corresponds to the incremental percentage of the performance goal achieved that is below 100% of target (shortfall). Includes shares of Issuer's common stock held in joint tenancy with reporting person's spouse. Reflects the reporting person's interest in equivalent shares of Henry Schein common stock held by the unitized stock fund in the Henry Schein, Inc. 401(k) Savings Plan (the "Plan"). The unitized stock fund consists of Henry Schein common stock and cash or cash equivalents. The number of shares attributed to the reporting person as a participant in the Plan and expressed as equivalent shares has been calculated based on the closing price of Henry Schein common stock on March 1, 2023. /s/ Jennifer Ferrero (as Attorney-in-Fact for Mark E. Mlotek) 2023-03-03