X0508 4 2026-02-06 0 0001800227 IAC Inc. IAC 0001834403 Handler Kendall C/O IAC INC. 555 WEST 18TH STREET NEW YORK NY 10011 0 1 0 0 EVP & CLO 0 Common Stock, par value $0.0001 2026-02-06 4 M 0 19388 0 A 82285 D Common Stock, par value $0.0001 2026-02-06 4 F 0 9898 35.65 D 72387 D Common Stock, par value $0.0001 2026-02-06 4 M 0 43042 0 A 115429 D Common Stock, par value $0.0001 2026-02-06 4 F 0 22164 35.65 D 93265 D Common Stock, par value $0.0001 2026-02-08 4 M 0 28568 0 A 121833 D Common Stock, par value $0.0001 2026-02-08 4 F 0 14584 35.65 D 107249 D Restricted Stock Units 0 2026-02-06 4 M 0 19388 0 D Common Stock, par value $0.0001 19388 38778 D Restricted Stock Units 0 2026-02-06 4 M 0 43042 0 D Common Stock, par value $0.0001 43042 86085 D Restricted Stock Units 0 2026-02-08 4 M 0 28568 0 D Common Stock, par value $0.0001 28568 14284 D Restricted Stock Units 0 2026-02-09 4 A 0 123220 0 A Common Stock, par value $0.0001 123220 123220 D Reflects 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 three installments on the second (33%), third (33%) and fourth (33%) 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 equal installments on each of February 6, 2026, 2027, and 2028 subject to continued service. Represents restricted stock units that vest in three installments on the first (25%), third (50%) and fourth (25%) anniversaries of February 8, 2023, subject to continued service. Represents restricted stock units that vest in equal installments on each of February 9, 2027, 2028, and 2029 subject to continued service. /s/ Kyra Ayo Caros as Attorney-In-Fact for Kendall Handler 2026-02-10