Detz Margaret Masoner

SEC source: 0001859514-26-000004 · wk-form4_1770245900.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,503

F1 · shares: Vesting of non-derivative performance-based restricted stock units granted in 2023, which are exempt from liability under Section 16(b) of the Securities Exchange Act pursuant to rule 16b-3(d).

SEC source: 0001859514-26-000002 · wk-form4_1767733424.xml · derivative · entry 2

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,488

Underlying: Common Stock, par value $0.01 · 7,488 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom service-based restricted stock unit (a Phantom RSU) and each phantom performance-based restricted stock unit (a Phantom PSU) represents a contingent right to receive the economic value of one share of Common Stock, with each solely settled in cash.

F3 · derivative.exercise_price: Represents a grant of 7,488 Phantom PSUs on January 3, 2026, that vest based on target achievement of applicable performance goals over the three-year performance period commencing January 1, 2026 and ending December 31, 2028, subject to certification of performance achievement by the Compensation and Talent Management Committee of Cable One, Inc. and the Reporting Persons continued employment through the date of such certification.

F1 · derivative.exercise_date: Each phantom service-based restricted stock unit (a Phantom RSU) and each phantom performance-based restricted stock unit (a Phantom PSU) represents a contingent right to receive the economic value of one share of Common Stock, with each solely settled in cash.

F3 · derivative.exercise_date: Represents a grant of 7,488 Phantom PSUs on January 3, 2026, that vest based on target achievement of applicable performance goals over the three-year performance period commencing January 1, 2026 and ending December 31, 2028, subject to certification of performance achievement by the Compensation and Talent Management Committee of Cable One, Inc. and the Reporting Persons continued employment through the date of such certification.

F1 · derivative.expiration_date: Each phantom service-based restricted stock unit (a Phantom RSU) and each phantom performance-based restricted stock unit (a Phantom PSU) represents a contingent right to receive the economic value of one share of Common Stock, with each solely settled in cash.

F3 · derivative.expiration_date: Represents a grant of 7,488 Phantom PSUs on January 3, 2026, that vest based on target achievement of applicable performance goals over the three-year performance period commencing January 1, 2026 and ending December 31, 2028, subject to certification of performance achievement by the Compensation and Talent Management Committee of Cable One, Inc. and the Reporting Persons continued employment through the date of such certification.

SEC source: 0001859514-26-000002 · wk-form4_1767733424.xml · derivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,992

Underlying: Common Stock, par value $0.01 · 4,992 shares

Expires not disclosed

F1 · derivative.exercise_price: Each phantom service-based restricted stock unit (a Phantom RSU) and each phantom performance-based restricted stock unit (a Phantom PSU) represents a contingent right to receive the economic value of one share of Common Stock, with each solely settled in cash.

F2 · derivative.exercise_price: Represents a grant of 4,992 Phantom RSUs on January 3, 2026, which generally vest in substantially equal installments on each of the first three anniversaries of the grant date, subject to the Reporting Persons continued employment through the applicable vesting date.

F1 · derivative.exercise_date: Each phantom service-based restricted stock unit (a Phantom RSU) and each phantom performance-based restricted stock unit (a Phantom PSU) represents a contingent right to receive the economic value of one share of Common Stock, with each solely settled in cash.

F2 · derivative.exercise_date: Represents a grant of 4,992 Phantom RSUs on January 3, 2026, which generally vest in substantially equal installments on each of the first three anniversaries of the grant date, subject to the Reporting Persons continued employment through the applicable vesting date.

F1 · derivative.expiration_date: Each phantom service-based restricted stock unit (a Phantom RSU) and each phantom performance-based restricted stock unit (a Phantom PSU) represents a contingent right to receive the economic value of one share of Common Stock, with each solely settled in cash.

F2 · derivative.expiration_date: Represents a grant of 4,992 Phantom RSUs on January 3, 2026, which generally vest in substantially equal installments on each of the first three anniversaries of the grant date, subject to the Reporting Persons continued employment through the applicable vesting date.

SEC source: 0001632127-25-000084 · wk-form4_1749762841.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,081

SEC source: 0001632127-25-000016 · wk-form4_1736284381.xml · nonDerivative · entry 2

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,781

F2 · shares: Represents shares of restricted stock units granted to the Reporting Person, which generally vest in three equal installments on each of the first three anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date.

SEC source: 0001632127-25-000016 · wk-form4_1736284381.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,389

F1 · shares: Represents the withholding of shares of Common Stock to satisfy tax withholding liability associated with the vesting of (i) restricted stock awards from previously reported grants, which were granted on January 3, 2022 which generally vest in four equal installments on each of the first four anniversaries of the respective date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date, and (ii) restricted stock units from previously reported grants, which were granted on January 3, 2023 and 2024, which generally vest in three equal installments on each of the first three anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date, and (iii) performance-based restricted stock awards from a previously reported grant, which were granted on January 3, 2022 and which vested on January 3, 2025.

SEC source: 0001632127-24-000097 · wk-form4_1719953140.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,634

F1 · shares: Represents the withholding of shares of Common Stock to satisfy the tax withholding liability associated with the vesting of a previously reported restricted stock award which was granted on July 1, 2021 and cliff vests in full on July 1, 2024, subject to the Reporting Person's continued employment through such date.

SEC source: 0001632127-24-000014 · wk-form4_1704489434.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,717

F1 · shares: Represents shares of restricted stock units granted to the Reporting Person, which generally vest in three equal installments on each of the first three anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date.

SEC source: 0001437749-23-005416 · rdgdoc.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,535

F1 · price: On January 3, 2022, the Reporting Person was granted performance-based restricted stock awards with respect to a target of 310 shares. On March 1, 2023, the Compensation and Talent Management Committee of the Board of Directors of Cable One, Inc. certified the applicable performance goals were achieved with respect to 100.4% of the target level of performance-based restricted stock.

SEC source: 0001437749-23-000520 · rdgdoc.xml · nonDerivative · entry 2

Detz Margaret Masoner · CIK 0001859514 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,224

F2 · shares: Represents restricted stock units granted to the Reporting Person, which generally vest in three equal installments on each of the first three anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units.

SEC source: 0001437749-23-000520 · rdgdoc.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 592

F1 · shares: Represents the withholding of shares of Common Stock to satisfy tax withholding liability associated with the vesting of restricted stock awards from a previously reported grant, which was granted on January 3, 2022 and which generally vests in four equal installments on each of the first four anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date.

SEC source: 0001437749-22-000477 · rdgdoc.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 608

F1 · shares: Represents shares of restricted stock granted to the Reporting Person, which generally vest in four equal installments on each of the first four anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date.

SEC source: 0001437749-21-016487 · rdgdoc.xml · derivative · entry 2

Detz Margaret Masoner · CIK 0001859514 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Common Stock, par value $0.01 · 2,000 shares

Expires 2031-07-01

F2 · derivative.exercise_date: The stock appreciation rights (SARs) generally vest and become exercisable as to 25% of the number of underlying shares covered by the grant on each of the first four anniversaries of the date of the grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such date. Each SAR represents the right, upon exercise, to receive a number of shares of Common Stock equal in value to the amount, if any, by which the fair market value of Common Stock (as determined on the date of exercise) exceeds the exercise price.

SEC source: 0001437749-21-016487 · rdgdoc.xml · nonDerivative · entry 1

Detz Margaret Masoner · CIK 0001859514 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 415

F1 · shares: Represents 415 shares of restricted stock granted to the Reporting Person, which generally vest on July 1, 2024, subject to the Reporting Person's continued employment with Cable One, Inc. through such date.