X0508 4 2025-11-30 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 2025-11-30 4 M 0 21618 0 A 48776 D Common Stock, par value $0.0001 2025-11-30 4 F 0 11036 35.07 D 37740 D Common Stock, par value $0.0001 2025-11-30 4 M 0 51394 0 A 89134 D Common Stock, par value $0.0001 2025-11-30 4 F 0 26237 35.07 D 62897 D Restricted Stock Units 0 2025-11-30 4 M 0 21618 0 D Common Stock, par value $0.0001 21618 0 D Restricted Stock Units 0 2025-11-30 4 M 0 51394 0 D Common Stock, par value $0.0001 51394 0 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. 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 restricted stock units reported on this Form 4 have been adjusted to reflect the Angi Spin. Represents a grant of restricted stock units that vested in one lump sum installment on November 30, 2025. /s/ Kyra Ayo Caros as Attorney-In-Fact for Kendall Handler 2025-12-02