X0609 4 2026-09-28 0000884269 ALPHA PRO TECH LTD APT 0001726903 Millar Donna true 53 WELLINGTON STREET EAST AURORA A6 L4G 1H6 ONTARIO, CANADA true false true false 0 common stock 2026-09-28 4 F 0 8029 5.04 D 1291574 D common stock 2026-09-28 4 S 0 6971 5.04 D 1284603 D common stock 2026-09-28 4 A 0 15000 5.04 A 1299603 D Represents the withholding of shares for tax purposes in connection with the vesting of time-based restricted stock units granted to the reporting person on September 28, 2023. On September 28, 2026, the issuer purchased 6,971 shares directly from the reporting person under the issuer's share repurchase program. The per-share price was based on the closing price of the issuer's stock as of the transaction date. The transaction was approved by the issuer's Compensation Committee in accordance with Rule 16b-3(d)(1) of the Securities Exchange Act of 1934, as amended (the "Act"), and as such, is exempt from Section 16(b) of the Act pursuant to Rule 16b-3(e) promulgated thereunder. Represents shares of time-based restricted stock units ("RSUs") granted under the Alpha Pro Tech, Ltd. 2020 Omnibus Plan (the "Plan") that will vest in full on the third anniversary of the grant date, subject to the terms of the Plan award agreement. /s/ Donna Millar 2026-09-30