CABO · Cable One, Inc.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2027 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This transaction was executed in multiple purchases ranging from $100.10 to $101.33 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or any security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected regarding this footnote.

Each service-based restricted stock unit (an RSU) represents a contingent right to receive one share of Cable One, Inc. (the Company) common stock, par value $0.01 (Common Stock). The grant of RSUs is an inducement grant made in accordance with the New York Stock Exchange Listed Company Manual Rule 303A.08 in connection with the Reporting Persons commencement of employment with the Company. The Reporting Person also received a grant of performance-based restricted stock units (PSUs) made in accordance with the New York Stock Exchange Listed Company Manual Rule 303A.08. The maximum number of Common Stock that may be delivered to the Reporting Person for this inducement grant pursuant to the grants of RSUs and PSUs is 169,000 in the aggregate.

Represents a grant of 44,004 RSUs on February 26, 2026, which generally vest in equal installments on each of the first three anniversaries of the grant date, subject to their continued employment with the Company through such date.

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).

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).

Represents the withholding of shares of Common Stock to satisfy tax withholding liability associated with the vesting of the performance stock units above.

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).

Represents the withholding of shares of Common Stock to satisfy tax withholding liability associated with the vesting of the performance stock units above.

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.

Represents a grant of 13,824 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.

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.

Represents a grant of 7,680 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.

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.

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.

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.

Represents a grant of 11,520 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.

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.

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.

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, 2025 which generally vest in three equal installments on each of the first three 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, 2025, which generally vest in two equal installments on each of the first two anniversaries of the date of grant, subject to the Reporting Person's continued employment with Cable One, Inc. through each such 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.

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.

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, 2024 and 2025, 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.

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.

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.

See Remarks.

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.

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.

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.

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.

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.

Represents a grant of 9,216 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.

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, 2024 and 2025, 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.

Represents the withholding of shares of Common Stock to satisfy the tax withholding liability associated with the vesting of an award of restricted stock units, which was granted on October 1, 2023 and which vested in full on October 1, 2025.

Represents the withholding of shares of Common Stock to satisfy the tax withholding liability associated with the vesting of an award of restricted stock units, which was granted on August 1, 2024 and that generally vests in two equal installments on each of the first two anniversaries of the grant date, subject to the Reporting Person's continued employment through each such date.

This transaction was executed in multiple purchases ranging from $133.73 to $133.82 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or any security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected regarding this footnote.

This transaction was executed in multiple purchases ranging from $131.92 to $132.48 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or any security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected regarding this footnote.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

This award of restricted stock units generally vests in full on the one-year anniversary of the grant date, or if earlier, the date of the 2026 annual shareholders' meeting of Cable One, Inc., subject to the Reporting Person's continued service on the Board of Directors of Cable One, Inc. through such date. Shares of Common Stock will be delivered to the Reporting Person upon vesting of the restricted stock units or, if applicable, as per the terms of the Reporting Person's deferral election.

Restricted stock units convert into Common Stock on a one-for-one basis.

Deferred stock units convert into Common Stock on a one-for-one basis.

Additional deferred stock units were acquired pursuant to the dividend equivalent provision of the underlying restricted stock unit award and is payable as per the terms of the Reporting Person's deferral election.

Deferred stock units convert into Common Stock on a one-for-one basis.

Additional deferred stock units were acquired pursuant to the dividend equivalent provision of the underlying restricted stock unit award and is payable as per the terms of the Reporting Person's deferral election.

Deferred stock units convert into Common Stock on a one-for-one basis.

Additional deferred stock units were acquired pursuant to the dividend equivalent provision of the underlying restricted stock unit award and is payable as per the terms of the Reporting Person's deferral election.

This transaction was executed in multiple purchases ranging from $242.00 to $250.00 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or any security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected regarding this footnote.

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

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.

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.