X0306 4 2021-03-03 0 0001000228 HENRY SCHEIN INC HSIC 0001577158 Ettinger Michael S C/O HENRY SCHEIN, INC. 135 DURYEA ROAD MELVILLE NY 11747 0 1 0 0 SVP Corp/Legal Ch of Staff Sec Common Stock, par value $0.01 per share 2021-03-03 4 A 0 12917 0.00 A 90410 D Common Stock, par value $0.01 per share 2021-03-03 4 A 0 5887 0.00 A 96297 D Common Stock, par value $0.01 per share 800 I As Trustee of the trusts for the benefit of his children. Common Stock, par value $0.01 per share 211 I By 401(k) plan Stock Option (Right to Buy) 62.71 2021-03-03 4 A 0 31952 0.00 A 2031-03-03 Common Stock, par value $0.01 per share 31952 31952 D Grant of restricted stock units (RSU) pursuant to the Issuer's 2020 Stock Incentive Plan. Subject to certain exceptions, the RSUs will vest on the fourth anniversary of the grant date, subject to reporting person's continued performance of services for the Issuer. Grant of restricted stock units (RSU) pursuant to the Issuer's 2020 Stock Incentive Plan. Subject to certain exceptions, the RSUs will vest in two equal installments on each of the first and second anniversary of the grant date, subject to reporting person's continued performance of services for the Issuer. Acquired pursuant to the Issuer's 2020 Stock Incentive Plan. Subject to certain exceptions, the options will vest in three equal installments on each of the first, second and third anniversary of the grant date, subject to reporting person's continued performance of services for the Issuer. /s/ Jennifer Ferrero (as Attorney-in-Fact for Michael S. Ettinger) 2021-03-05