PPLI

SEC source: 0001628280-26-007084 · wk-form4_1770776981.xml · nonDerivative · entry 4

Halpin Christopher · CIK 0001903375 · EVP, CFO & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,570

F2 · security: Represents shares withheld to cover taxes due in connection with vesting of restricted stock units.

SEC source: 0001628280-26-007084 · wk-form4_1770776981.xml · nonDerivative · entry 3

Halpin Christopher · CIK 0001903375 · EVP, CFO & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,931

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Represents shares of IAC common stock acquired upon the vesting of restricted stock units.

SEC source: 0001628280-26-007084 · wk-form4_1770776981.xml · nonDerivative · entry 2

Halpin Christopher · CIK 0001903375 · EVP, CFO & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,994

F2 · security: Represents shares withheld to cover taxes due in connection with vesting of restricted stock units.

SEC source: 0001628280-26-007084 · wk-form4_1770776981.xml · nonDerivative · entry 1

Halpin Christopher · CIK 0001903375 · EVP, CFO & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,925

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Represents shares of IAC common stock acquired upon the vesting of restricted stock units.

SEC source: 0001628280-26-000643 · wk-form4_1767652708.xml · nonDerivative · entry 1

Seferian Maria · CIK 0001874845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,212

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 6,892 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 1,352 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001628280-26-000641 · wk-form4_1767652503.xml · nonDerivative · entry 1

EISNER MICHAEL D · CIK 0001205854 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,146

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 167,349 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 4,797 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001628280-26-000637 · wk-form4_1767651973.xml · nonDerivative · entry 1

Lourd Bryan · CIK 0001325206 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,544

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 46,173 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 151,371 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001628280-26-000638 · wk-form4_1767652321.xml · nonDerivative · entry 1

Clinton Chelsea · CIK 0001530920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,097

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 51,838 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 35,259 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001628280-25-057406 · wk-form4_1765920718.xml · derivative · entry 2

Seferian Maria · CIK 0001874845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,074

Underlying: Common Stock, par value $0.0001 · 2,075 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Represents restricted stock units that vest in three equal installments on the anniversary of the grant date (December 12, 2023), subject to continued service.

F2 · derivative.exercise_date: Represents restricted stock units that vest in three equal installments on the anniversary of the grant date (December 12, 2023), subject to continued service.

F2 · derivative.expiration_date: Represents restricted stock units that vest in three equal installments on the anniversary of the grant date (December 12, 2023), subject to continued service.

F3 · balance_after: 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.

SEC source: 0001628280-25-057406 · wk-form4_1765920718.xml · nonDerivative · entry 1

Seferian Maria · CIK 0001874845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,892

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents shares of IAC common stock acquired upon the vesting of restricted stock units.

SEC source: 0001628280-25-054894 · wk-form4_1764729919.xml · derivative · entry 6

Handler Kendall · CIK 0001834403 · EVP & CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 51,394 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: 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.

F4 · derivative.exercise_date: Represents a grant of restricted stock units that vested in one lump sum installment on November 30, 2025.

F4 · derivative.expiration_date: Represents a grant of restricted stock units that vested in one lump sum installment on November 30, 2025.

SEC source: 0001628280-25-054894 · wk-form4_1764729919.xml · derivative · entry 5

Handler Kendall · CIK 0001834403 · EVP & CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 21,618 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: 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.

F4 · derivative.exercise_date: Represents a grant of restricted stock units that vested in one lump sum installment on November 30, 2025.

F4 · derivative.expiration_date: Represents a grant of restricted stock units that vested in one lump sum installment on November 30, 2025.

SEC source: 0001628280-25-054894 · wk-form4_1764729919.xml · nonDerivative · entry 4

Handler Kendall · CIK 0001834403 · EVP & CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,897

F2 · shares: Represents shares withheld to cover taxes due in connection with vesting of restricted stock units.

SEC source: 0001628280-25-054894 · wk-form4_1764729919.xml · nonDerivative · entry 3

Handler Kendall · CIK 0001834403 · EVP & CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,134

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents shares of IAC common stock acquired upon the vesting of restricted stock units.

SEC source: 0001628280-25-054894 · wk-form4_1764729919.xml · nonDerivative · entry 2

Handler Kendall · CIK 0001834403 · EVP & CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,740

F2 · shares: Represents shares withheld to cover taxes due in connection with vesting of restricted stock units.

SEC source: 0001628280-25-054894 · wk-form4_1764729919.xml · nonDerivative · entry 1

Handler Kendall · CIK 0001834403 · EVP & CLO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,776

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents shares of IAC common stock acquired upon the vesting of restricted stock units.

SEC source: 0001628280-25-050741 · wk-form4_1762555396.xml · derivative · entry 4

Diller Barry · CIK 0000927067 · Director · Chairman & Senior Executive

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 438,757 shares

Expires 2025-11-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Represents restricted stock units that vested in full on November 5, 2025. The amount of restricted stock units reported on this Form 4 is adjusted to reflect IAC's spin-off of each of Match Group Inc., Vimeo, Inc. and Angi Inc.

F3 · shares: Represents restricted stock units that vested in full on November 5, 2025. The amount of restricted stock units reported on this Form 4 is adjusted to reflect IAC's spin-off of each of Match Group Inc., Vimeo, Inc. and Angi Inc.

F3 · derivative.underlying_shares: Represents restricted stock units that vested in full on November 5, 2025. The amount of restricted stock units reported on this Form 4 is adjusted to reflect IAC's spin-off of each of Match Group Inc., Vimeo, Inc. and Angi Inc.

SEC source: 0001628280-25-050741 · wk-form4_1762555396.xml · nonDerivative · entry 2

Diller Barry · CIK 0000927067 · Director · Chairman & Senior Executive

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 665,234

F2 · shares: Represents shares withheld to cover taxes due in connection with vesting of restricted stock units (see footnote 3 below).

SEC source: 0001628280-25-050741 · wk-form4_1762555396.xml · nonDerivative · entry 1

Diller Barry · CIK 0000927067 · Director · Chairman & Senior Executive

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 906,202

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 3 below).

SEC source: 0001628280-25-043849 · wk-form4_1759442977.xml · nonDerivative · entry 1

Seferian Maria · CIK 0001874845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,817

F1 · security: Represents share units accured under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accured under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: Includes: (i) 3,785 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 1,032 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report (the "Deferred Shares").

F3 · balance_after: 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 Deferred Shares reported on this Form 4 have been adjusted to reflect the Angi Spin.

SEC source: 0001628280-25-043845 · wk-form4_1759442351.xml · nonDerivative · entry 1

EISNER MICHAEL D · CIK 0001205854 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,778

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: Includes: (i) 167,349 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 4,429 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report (the "Deferred Shares").

F3 · balance_after: 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 Deferred Shares reported on this Form 4 have been adjusted to reflect the Angi Spin.

SEC source: 0001628280-25-043844 · wk-form4_1759442212.xml · nonDerivative · entry 1

Lourd Bryan · CIK 0001325206 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,128

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 46,173 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 150,955 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report (the "Deferred Shares").

F3 · balance_after: 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 Deferred Shares reported on this Form 4 have been adjusted to reflect the Angi Spin.

SEC source: 0001628280-25-043847 · wk-form4_1759442769.xml · nonDerivative · entry 1

Clinton Chelsea · CIK 0001530920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,937

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 51,838 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 35,099 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report (the "Deferred Shares").

F3 · balance_after: 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 Deferred Shares reported on this Form 4 have been adjusted to reflect the Angi Spin.

SEC source: 0001800227-25-000110 · wk-form4_1751491711.xml · nonDerivative · entry 1

Seferian Maria · CIK 0001874845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,392

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 3,785 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 607 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000114 · wk-form4_1751492301.xml · nonDerivative · entry 1

EISNER MICHAEL D · CIK 0001205854 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,711

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 167,349 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 3,362 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000108 · wk-form4_1751491246.xml · nonDerivative · entry 1

Lourd Bryan · CIK 0001325206 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,244

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 46,173 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 124,071 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000112 · wk-form4_1751491970.xml · nonDerivative · entry 1

Clinton Chelsea · CIK 0001530920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,633

F1 · security: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F1 · shares: Represents share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

F2 · balance_after: lncludes: (i) 51,838 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 28,795 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000105 · wk-form4_1750884015.xml · derivative · entry 3

SPOON ALAN G · CIK 0001018394 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F5 · balance_after: 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.

SEC source: 0001800227-25-000105 · wk-form4_1750884015.xml · nonDerivative · entry 1

SPOON ALAN G · CIK 0001018394 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 242,429

F1 · security: Reflects shares of IAC common stock received upon the vesting of restricted stock units (see footnote 4 below).

F2 · balance_after: lncludes: (i) 106,625 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 135,804 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000106 · wk-form4_1750884387.xml · derivative · entry 2

Von Furstenberg Alexander · CIK 0001451171 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · balance_after: 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.

SEC source: 0001800227-25-000106 · wk-form4_1750884387.xml · nonDerivative · entry 1

Von Furstenberg Alexander · CIK 0001451171 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,710

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 3 below).

F2 · balance_after: lncludes: (i) 86,291 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 17,419 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000101 · wk-form4_1750882936.xml · derivative · entry 2

Hammer Bonnie S · CIK 0001438260 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service

F2 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service

F2 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service

F3 · balance_after: 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.

SEC source: 0001800227-25-000101 · wk-form4_1750882936.xml · nonDerivative · entry 1

Hammer Bonnie S · CIK 0001438260 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,721

F1 · security: Reflects shares of IAC common stock received upon the vesting of restricted stock units (see footnote 2 below).

SEC source: 0001800227-25-000103 · wk-form4_1750883475.xml · derivative · entry 2

ROSENBLATT DAVID S · CIK 0001237860 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · balance_after: 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.

SEC source: 0001800227-25-000103 · wk-form4_1750883475.xml · nonDerivative · entry 1

ROSENBLATT DAVID S · CIK 0001237860 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,756

F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 3 below).

F2 · balance_after: lncludes: (i) 59,763 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 25,993 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000104 · wk-form4_1750883542.xml · derivative · entry 2

ZANNINO RICHARD F · CIK 0001189770 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F2 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F2 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · balance_after: 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.

SEC source: 0001800227-25-000104 · wk-form4_1750883542.xml · nonDerivative · entry 1

ZANNINO RICHARD F · CIK 0001189770 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,487

F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 2 below).

SEC source: 0001800227-25-000100 · wk-form4_1750882870.xml · derivative · entry 2

EISNER MICHAEL D · CIK 0001205854 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · balance_after: 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.

SEC source: 0001800227-25-000100 · wk-form4_1750882870.xml · nonDerivative · entry 1

EISNER MICHAEL D · CIK 0001205854 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,368

F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 3 below).

F2 · balance_after: lncludes: (i) 167,349 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 3,019 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000102 · wk-form4_1750883013.xml · derivative · entry 2

Lourd Bryan · CIK 0001325206 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · balance_after: 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.

SEC source: 0001800227-25-000102 · wk-form4_1750883013.xml · nonDerivative · entry 1

Lourd Bryan · CIK 0001325206 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,837

F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 3 below).

F2 · balance_after: lncludes: (i) 46,173 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 123,664 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000098 · wk-form4_1750882694.xml · derivative · entry 2

Clinton Chelsea · CIK 0001530920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.0001 · 1,257 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.exercise_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F3 · derivative.expiration_date: Represents restricted stock units that vested/vest in equal installments on each of June 23, 2023, 2024, and 2025, subject to continued service.

F4 · balance_after: 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.

SEC source: 0001800227-25-000098 · wk-form4_1750882694.xml · nonDerivative · entry 1

Clinton Chelsea · CIK 0001530920 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,466

F1 · security: Reflects shares of IAC common stock acquired upon the vesting of restricted stock units (see footnote 3 below).

F2 · balance_after: lncludes: (i) 51,838 shares of lAC common stock held directly by the reporting person (personally or through a trust, of which the reporting person is the grantor/sellor, sole trustee and sole beneficiary) and (ii) 28,628 share units accrued under the Non-Employee Director Deferred Compensation Plan as of the date of this report.

SEC source: 0001800227-25-000081 · wk-form4_1750713498.xml · derivative · entry 1

SPOON ALAN G · CIK 0001018394 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

SEC source: 0001800227-25-000080 · wk-form4_1750713464.xml · derivative · entry 1

Seferian Maria · CIK 0001874845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

SEC source: 0001800227-25-000078 · wk-form4_1750713370.xml · derivative · entry 1

Von Furstenberg Alexander · CIK 0001451171 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

SEC source: 0001800227-25-000086 · wk-form4_1750713765.xml · derivative · entry 1

Hammer Bonnie S · CIK 0001438260 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028, subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028, subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028, subject to continued service.

SEC source: 0001800227-25-000082 · wk-form4_1750713555.xml · derivative · entry 1

ROSENBLATT DAVID S · CIK 0001237860 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

SEC source: 0001800227-25-000077 · wk-form4_1750713275.xml · derivative · entry 1

ZANNINO RICHARD F · CIK 0001189770 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

SEC source: 0001800227-25-000085 · wk-form4_1750713730.xml · derivative · entry 1

EISNER MICHAEL D · CIK 0001205854 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,791

Underlying: Common Stock, par value $0.0001 · 6,791 shares

Expires not disclosed

F1 · security: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.exercise_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.

F1 · derivative.expiration_date: Represents restricted stock units that vest in equal installments on each of June 18, 2026, 2027, and 2028 subject to continued service.