X0508 4 2026-02-06 0 0001800227 IAC Inc. IAC 0001903375 Halpin Christopher C/O IAC INC. 555 WEST 18TH STREET NEW YORK NY 10011 0 1 0 0 EVP, CFO & COO 0 Common Stock, par value $0.0001 2026-02-06 4 M 0 40716 0 A 105925 D Common Stock, par value $0.0001 2026-02-06 4 F 0 20931 35.65 D 84994 D Common Stock, par value $0.0001 2026-02-06 4 M 0 84937 0 A 169931 D Common Stock, par value $0.0001 2026-02-06 4 F 0 43361 35.65 D 126570 D Common Stock, par value $0.0001 2026-02-08 4 M 0 22855 0 A 149425 D Common Stock, par value $0.0001 2026-02-08 4 F 0 11668 35.65 D 137757 D Restricted Stock Units 0 2026-02-06 4 M 0 40716 0 D Common Stock, par value $0.0001 40716 40716 D Restricted Stock Units 0 2026-02-06 4 M 0 84937 0 D Common Stock, par value $0.0001 84937 144623 D Restricted Stock Units 0 2026-02-08 4 M 0 22855 0 D Common Stock, par value $0.0001 22855 22855 D Restricted Stock Units 0 2026-02-09 4 A 0 219058 0 A Common Stock, par value $0.0001 219058 219058 D Represents shares of IAC common stock acquired upon the vesting of restricted stock units. Represents shares withheld to cover taxes due in connection with vesting of restricted stock units. Represents restricted stock units that vest in two equal installments on the second and fourth anniversaries of February 6, 2024, subject to continued service. On March 31, 2025, IAC completed the spin-off of its ownership in Angi Inc. by means of a special dividend of all of the shares of Class A Common Stock then held by IAC to holders of its common stock and Class B common stock (the "Angi Spin"). The amount of unvested restricted stock units reported on this Form 4 have been adjusted to reflect the Angi Spin. Represents restricted stock units that vest in two installments on the first (37.5%) and third (62.5%) anniversaries of February 6, 2025, subject to continued service. Represents restricted stock units that vest in four installments on the first (37.5%), second (37.5%), third (12.5%) and fourth (12.5%) anniversaries of February 8, 2023, subject to continued service. Represents restricted stock units that vest in two equal installments on each of February 9, 2028 and 2029, subject to continued service. /s/ Kyra Ayo Caros as Attorney-In-Fact for Chris Halpin 2026-02-10