X0306 4/A 2020-02-28 2020-03-03 0 0000884269 ALPHA PRO TECH LTD APT 0001258162 RITOTA JOHN 60 CENTURIAN DRIVE SUITE # 112 MARKHAM A6 L3R 9R2 ONTARIO, CANADA 1 0 0 0 common stock 2020-02-28 4 S 0 4400 23.80 D 15000 I by spouse, Dr Ritota disclaims beneficial ownership On March 30, 2020, the reporting person filed an amendment to the Form 4 filed on March 3, 2020 (the "Original Report"), which inadvertently omitted the details of a sale transaction by the reporting person's spouse on February 28, 2020. This amendment is being filed to further amend the Original Report to correctly report the total holdings of the reporting person's spouse after the sale transaction (15,000 shares), which was incorrectly reported in the first amendment as 10,600 shares Dr. John Ritota 2020-05-18