144 0001448074 XXXXXXXX LIVE 0000001800 ABBOTT LABORATORIES 001-02189 100 ABBOTT PARK ROAD ABBOTT PARK IL 60064 224-667-6100 Robert J. Alpern Retired Director Common Janney Montgomery Scott LLC

555 Long Warf Drive 11th Floor New Haven CT 06511

7587 646791 1741812429 05/15/2026 NYSE Common 04/24/2026 RSUs Paid In Shares Issuer N 7587 05/15/2026 N/A N Robert J. Alpern

100 Abbott Park Road Abbott Park IL 60064

Common 04/27/2026 29211 2703457 05/15/2026 /s/ Robert J. Alpern by Aaron N. Rice , Attorney-in-Fact