SPECTRUM MANAGEMENT HOLDING COMPANY, LLC

SEC source: 0001140361-26-034037 · form4.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 8,447,242

Underlying: Class A Common Stock · 4,223,621 shares

Expires not disclosed

F3 · derivative.exercise_price: Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designations of the Series C Convertible Preferred Stock). Pursuant to the Certificate of Designations of the Series C Convertible Preferred Stock, no holder of Series C Convertible Preferred Stock may convert Series C Convertible Preferred Stock in an amount that would cause such holder to beneficially own over immediately following such conversion more than 49.99% of the then outstanding shares of Common Stock. Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted. Shares of Series C Convertible Preferred Stock have no expiration date.

F1 · kind: On August 19, 2026, as a result of the Combination (as defined in the Remarks section), Charter (as defined in the Remarks section) acquired Liberty Broadband (as defined in the Remarks section), and as a result of the Combination, Charter became the beneficial owner of all the shares of Common Stock and Series C Convertible Preferred Stock that were beneficially owned by Liberty Broadband.

F1 · price: On August 19, 2026, as a result of the Combination (as defined in the Remarks section), Charter (as defined in the Remarks section) acquired Liberty Broadband (as defined in the Remarks section), and as a result of the Combination, Charter became the beneficial owner of all the shares of Common Stock and Series C Convertible Preferred Stock that were beneficially owned by Liberty Broadband.

F3 · derivative.exercise_date: Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designations of the Series C Convertible Preferred Stock). Pursuant to the Certificate of Designations of the Series C Convertible Preferred Stock, no holder of Series C Convertible Preferred Stock may convert Series C Convertible Preferred Stock in an amount that would cause such holder to beneficially own over immediately following such conversion more than 49.99% of the then outstanding shares of Common Stock. Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted. Shares of Series C Convertible Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designations of the Series C Convertible Preferred Stock). Pursuant to the Certificate of Designations of the Series C Convertible Preferred Stock, no holder of Series C Convertible Preferred Stock may convert Series C Convertible Preferred Stock in an amount that would cause such holder to beneficially own over immediately following such conversion more than 49.99% of the then outstanding shares of Common Stock. Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted. Shares of Series C Convertible Preferred Stock have no expiration date.

F2 · ownership.nature: Charter Communications Holding Company, LLC ("HoldCo") is the record holder of the reported shares. Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter is the controlling parent company of CCH II.

SEC source: 0001140361-26-034037 · form4.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 6,582,008

F1 · kind: On August 19, 2026, as a result of the Combination (as defined in the Remarks section), Charter (as defined in the Remarks section) acquired Liberty Broadband (as defined in the Remarks section), and as a result of the Combination, Charter became the beneficial owner of all the shares of Common Stock and Series C Convertible Preferred Stock that were beneficially owned by Liberty Broadband.

F1 · price: On August 19, 2026, as a result of the Combination (as defined in the Remarks section), Charter (as defined in the Remarks section) acquired Liberty Broadband (as defined in the Remarks section), and as a result of the Combination, Charter became the beneficial owner of all the shares of Common Stock and Series C Convertible Preferred Stock that were beneficially owned by Liberty Broadband.

F2 · ownership.nature: Charter Communications Holding Company, LLC ("HoldCo") is the record holder of the reported shares. Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter is the controlling parent company of CCH II.

SEC source: 0001091667-26-000043 · wk-form4_1783369003.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 16,461

Underlying: Common Stock · 16,461 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2026-2027 director term, will vest in full on the earliest of (i) the date of the Company's 2027 annual meeting of stockholders, (ii) June 30, 2027, and (iii) the date of a change in control of the Company, subject in each case to the grantee's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2026-2027 director term, will vest in full on the earliest of (i) the date of the Company's 2027 annual meeting of stockholders, (ii) June 30, 2027, and (iii) the date of a change in control of the Company, subject in each case to the grantee's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: Jeffrey Barratt Murphy assigned all his rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-26-000040 · wk-form4_1781813767.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 20,000 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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted on 7/1/2025 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. The Stock Award, which represents compensation for the 2025-2026 director term, vested in full on 6/16/2026, the date of the Company's 2026 annual meeting of stockholders. Vested units are deferred and will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted on 7/1/2025 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. The Stock Award, which represents compensation for the 2025-2026 director term, vested in full on 6/16/2026, the date of the Company's 2026 annual meeting of stockholders. Vested units are deferred and will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Jeffrey Barratt Murphy each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-26-000040 · wk-form4_1781813767.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,356,614

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 · price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

SEC source: 0001104659-25-125622 · tm2534172-2_4seq1.xml · derivative · entry 3

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 4,223,621

Underlying: Common Stock · 4,223,621 shares

Expires not disclosed

F4 · derivative.exercise_price: Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designation of Series C Convertible Preferred Stock). Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted. Shares of Series C Convertible Preferred Stock have no expiration date.

F1 · price: Pursuant to the closing of the Stock Exchange Agreement, dated as of September 26, 2025, by and between the comScore, Inc. ("Issuer") and Charter Communications Holding Company, LLC ("HoldCo"), in exchange for 31,928,301 shares of Series B Convertible Preferred Stock, the Issuer issued to HoldCo (i) 4,223,621 shares of Series C Preferred Stock and (ii) 3,286,825 shares of Common Stock.

F4 · derivative.exercise_date: Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designation of Series C Convertible Preferred Stock). Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted. Shares of Series C Convertible Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designation of Series C Convertible Preferred Stock). Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted. Shares of Series C Convertible Preferred Stock have no expiration date.

F2 · ownership.nature: HoldCo is the record holder of the reported shares. Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. ("Charter") is the controlling parent company of CCH II.

SEC source: 0001104659-25-125622 · tm2534172-2_4seq1.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,603,578 shares

Expires not disclosed

F3 · derivative.exercise_price: Shares of Series B Convertible Preferred Stock are convertible, at the holder's election, at the conversion rate (as defined in the Certificate of Designation of Series B Convertible Preferred Stock), which was initially one-to-one, as adjusted (i) to reflect the 1-for-20 reverse stock split on December 20, 2023 and (ii) by accrued but unpaid dividends. Upon conversion, the holder will receive cash in lieu of fractional shares (if any). Shares of Series B Convertible Preferred Stock have no expiration date.

F1 · price: Pursuant to the closing of the Stock Exchange Agreement, dated as of September 26, 2025, by and between the comScore, Inc. ("Issuer") and Charter Communications Holding Company, LLC ("HoldCo"), in exchange for 31,928,301 shares of Series B Convertible Preferred Stock, the Issuer issued to HoldCo (i) 4,223,621 shares of Series C Preferred Stock and (ii) 3,286,825 shares of Common Stock.

F3 · derivative.exercise_date: Shares of Series B Convertible Preferred Stock are convertible, at the holder's election, at the conversion rate (as defined in the Certificate of Designation of Series B Convertible Preferred Stock), which was initially one-to-one, as adjusted (i) to reflect the 1-for-20 reverse stock split on December 20, 2023 and (ii) by accrued but unpaid dividends. Upon conversion, the holder will receive cash in lieu of fractional shares (if any). Shares of Series B Convertible Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Shares of Series B Convertible Preferred Stock are convertible, at the holder's election, at the conversion rate (as defined in the Certificate of Designation of Series B Convertible Preferred Stock), which was initially one-to-one, as adjusted (i) to reflect the 1-for-20 reverse stock split on December 20, 2023 and (ii) by accrued but unpaid dividends. Upon conversion, the holder will receive cash in lieu of fractional shares (if any). Shares of Series B Convertible Preferred Stock have no expiration date.

F2 · ownership.nature: HoldCo is the record holder of the reported shares. Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. ("Charter") is the controlling parent company of CCH II.

SEC source: 0001104659-25-125622 · tm2534172-2_4seq1.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 3,336,614

F1 · price: Pursuant to the closing of the Stock Exchange Agreement, dated as of September 26, 2025, by and between the comScore, Inc. ("Issuer") and Charter Communications Holding Company, LLC ("HoldCo"), in exchange for 31,928,301 shares of Series B Convertible Preferred Stock, the Issuer issued to HoldCo (i) 4,223,621 shares of Series C Preferred Stock and (ii) 3,286,825 shares of Common Stock.

F2 · ownership.nature: HoldCo is the record holder of the reported shares. Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. ("Charter") is the controlling parent company of CCH II.

SEC source: 0001091667-25-000119 · wk-form4_1751573360.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2025-2026 director term, will vest in full on the earliest of (i) the date of the Company's 2026 annual meeting of stockholders, (ii) June 30, 2026, and (iii) the date of a change in control of the Company, subject in each case to the grantee's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2025-2026 director term, will vest in full on the earliest of (i) the date of the Company's 2026 annual meeting of stockholders, (ii) June 30, 2026, and (iii) the date of a change in control of the Company, subject in each case to the grantee's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · derivative.underlying_shares: The number of shares subject to this restricted stock unit award was determined by dividing $120,000 by $12. This represents a significant reduction in compensation compared to the Company's prior director compensation program, which prescribed dividing $170,000 by the closing market price of the common stock on the date of grant, which was $5.07. The Board of Directors elected to reduce the target compensation level and use the higher price in order to further align directors' interests with those of the Company's common stockholders.

F4 · ownership.nature: David Kline and Jeffrey Barratt Murphy each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-25-000110 · wk-form4_1750450347.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 21,478 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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted on 7/1/2024 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. The Stock Award, which represents compensation for the 2024-2025 director term, vested in full on 6/17/2025, the date of the Company's 2025 annual meeting of stockholders. Vested units are deferred and will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted on 7/1/2024 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. The Stock Award, which represents compensation for the 2024-2025 director term, vested in full on 6/17/2025, the date of the Company's 2025 annual meeting of stockholders. Vested units are deferred and will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Jeffrey Barratt Murphy each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-25-000110 · wk-form4_1750450347.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,789

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 · price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

SEC source: 0001091667-24-000106 · wk-form4_1722026446.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 31,928,301

Underlying: Common Stock · 220,954 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Series B Convertible Preferred Stock are convertible, at the holder's election, at the conversion rate (as defined in the Certificate of Designation of Series B Convertible Preferred Stock), which was initially one-to-one, as adjusted (i) to reflect the 1-for-20 reverse stock split on December 20, 2023 and (ii) by accrued but unpaid dividends. Upon conversion, the holder will receive cash in lieu of fractional shares (if any). Shares of Series B Convertible Preferred Stock have no expiration date.

F3 · price: The reported securities were received in respect of, and exchange for, accrued but unpaid dividends on Series B Convertible Preferred Stock with respect to annual dividend periods ending in 2023 and 2024. The acquired shares of Series B Convertible Preferred Stock, which were convertible into 220,954 shares of Common Stock on the transaction date (as such amount is increased in respect of accrued dividends), were received in exchange for an aggregate of $10,923,569 in accrued but unpaid dividends, representing an effective conversion price of $49.438 per share of Common Stock for the canceled dividend obligation.

F1 · derivative.exercise_date: Shares of Series B Convertible Preferred Stock are convertible, at the holder's election, at the conversion rate (as defined in the Certificate of Designation of Series B Convertible Preferred Stock), which was initially one-to-one, as adjusted (i) to reflect the 1-for-20 reverse stock split on December 20, 2023 and (ii) by accrued but unpaid dividends. Upon conversion, the holder will receive cash in lieu of fractional shares (if any). Shares of Series B Convertible Preferred Stock have no expiration date.

F1 · derivative.expiration_date: Shares of Series B Convertible Preferred Stock are convertible, at the holder's election, at the conversion rate (as defined in the Certificate of Designation of Series B Convertible Preferred Stock), which was initially one-to-one, as adjusted (i) to reflect the 1-for-20 reverse stock split on December 20, 2023 and (ii) by accrued but unpaid dividends. Upon conversion, the holder will receive cash in lieu of fractional shares (if any). Shares of Series B Convertible Preferred Stock have no expiration date.

F2 · derivative.underlying_shares: Represents the amount of Common Stock issuable upon conversion of the Series B Preferred Stock acquired on the transaction date, prior to the accrual of dividends. The Conversion Rate will continue to adjust to the extent there are additional accrued but unpaid dividends. The holders of Series B Preferred Stock are entitled to participate in all dividends declared on the Common Stock on an as-converted basis and are also entitled to a cumulative dividend at the rate of 7.5% per annum.

F4 · ownership.nature: Charter Communications Holding Company, LLC ("HoldCo") is the record holder of the reported shares. Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-24-000094 · wk-form4_1719950796.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 21,478

Underlying: Common Stock · 21,478 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2024-2025 director term, will vest in full on the earliest of (i) the date of the Company's 2025 annual meeting of stockholders, (ii) June 30, 2025, and (iii) the date of a change in control of the Company, subject in each case to the grantee's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2024-2025 director term, will vest in full on the earliest of (i) the date of the Company's 2025 annual meeting of stockholders, (ii) June 30, 2025, and (iii) the date of a change in control of the Company, subject in each case to the grantee's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · derivative.underlying_shares: The number of shares subject to this Stock Award was determined by dividing $170,000 by $15.83, which was the price per share used for the Company's most recent employee equity awards. This represents a reduction in the number of shares otherwise due to the grantee under the Company's director compensation program, which would have divided $170,000 by the closing market price of the common stock on the date of grant, which was $14.47. The Board of Directors elected to use the higher price in order to further align directors' interests with those of the Company's common stockholders.

F4 · ownership.nature: David Kline and Jeffrey Barratt Murphy each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-24-000045 · wk-form4_1712348741.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 11,100

Underlying: Common Stock · 2,685 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · shares: The number of shares subject to this restricted stock unit award was determined by dividing $42,500 by $15.83, which was the price per share used for the Company's most recent employee equity awards.

F3 · derivative.exercise_date: This restricted stock unit award (the "Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents prorated compensation for the 2023-2024 director term for Jeffrey Barratt Murphy, will vest in full on the earliest of (i) the date of the Company's 2024 annual meeting of stockholders, (ii) June 30, 2024, and (iii) the date of a change in control of the Company, subject in each case to Mr. Murphy's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · derivative.expiration_date: This restricted stock unit award (the "Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents prorated compensation for the 2023-2024 director term for Jeffrey Barratt Murphy, will vest in full on the earliest of (i) the date of the Company's 2024 annual meeting of stockholders, (ii) June 30, 2024, and (iii) the date of a change in control of the Company, subject in each case to Mr. Murphy's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F4 · balance_after: Restricted Stock Units (8,415) which were issued to Pierre-Andre Liduena were cancelled in connection with his resignation from the Board of Directors of comScore, Inc. on April 1, 2024. The number of Restricted Stock Units beneficially owned has been updated to reflect the 1-for-20 reverse stock split effected 12/20/2023 as disclosed in the Company's Form 8-K dated 12/27/2023.

F5 · ownership.nature: David Kline, Pierre-Andre Liduena and Jeffrey Barratt Murphy each assigned all their rights and interests in Company equity awards, including the Stock Award, to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-23-000101 · wk-form4_1688762455.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 336,632

Underlying: Common Stock · 336,632 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2023-2024 director term, will vest in full on the earliest of (i) the date of the Company's 2024 annual meeting of stockholders, (ii) June 30, 2024, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2023-2024 director term, will vest in full on the earliest of (i) the date of the Company's 2024 annual meeting of stockholders, (ii) June 30, 2024, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Pierre-Andre Liduena each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-23-000093 · wk-form4_1686949574.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 200,000 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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted on 7/6/2022 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2022-2023 director term, vested in full on 6/15/2023, the date of the Company's 2023 annual meeting of stockholders. Vested units are deferred and will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted on 7/6/2022 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2022-2023 director term, vested in full on 6/15/2023, the date of the Company's 2023 annual meeting of stockholders. Vested units are deferred and will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Pierre-Andre Liduena each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-23-000093 · wk-form4_1686949574.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 344,246

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 · price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

SEC source: 0001091667-22-000074 · wf-form4_165731508720598.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2022-2023 director term, will vest in full on the earliest of (i) the date of the Company's 2023 annual meeting of stockholders, (ii) June 30, 2023, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2022-2023 director term, will vest in full on the earliest of (i) the date of the Company's 2023 annual meeting of stockholders, (ii) June 30, 2023, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be deferred and delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Pierre-Andre Liduena each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-22-000072 · wf-form4_165549682800687.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 100,200 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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted on July 1, 2021 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2021-2022 director term, vested in full on 6/15/2022, the date of the Company's 2022 annual meeting of stockholders. Vested units will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted on July 1, 2021 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which represents compensation for the 2021-2022 director term, vested in full on 6/15/2022, the date of the Company's 2022 annual meeting of stockholders. Vested units will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Pierre-Andre Liduena each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-22-000072 · wf-form4_165549682800687.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,246

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 · price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

SEC source: 0001091667-21-000097 · wf-form4_162370205368391.xml · derivative · entry 2

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 44,046 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.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted March 10, 2021 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which is prorated for partial service during the 2020-2021 director term, vested in full on 6/10/2021, the date of the Company's 2021 annual meeting of stockholders. Vested units will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted March 10, 2021 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which is prorated for partial service during the 2020-2021 director term, vested in full on 6/10/2021, the date of the Company's 2021 annual meeting of stockholders. Vested units will be delivered in shares of common stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Pierre-Andre Liduena each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001091667-21-000097 · wf-form4_162370205368391.xml · nonDerivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,046

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 · price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

SEC source: 0001091667-21-000044 · wf-form4_161782731299778.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

CHARTER COMMUNICATIONS HOLDINGS LLC · CIK 0001085476 · 10% owner

CCH II LLC · CIK 0001266604 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 44,046

Underlying: Common Stock · 17,077 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

F2 · shares: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · price: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to the reporter's continued status as a member of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · balance_after: Restricted Stock Units which were issued to Charles Fisher were cancelled in connection with his resignation from the Board of Directors of comScore, Inc. on March 30, 2021.

F4 · ownership.nature: David Kline, Charles Fisher, and Pierre-Andre Liduena each assigned all their rights and interests in any and all compensation received from the Company for service as a director, including the Stock Award to Charter Communications Holding Company, LLC ("HoldCo"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of HoldCo. Charter Communications Holdings, LLC ("Holdings") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of Holdings. Charter Communications, Inc. is the controlling parent company of CCH II.

SEC source: 0001104659-21-035776 · tm219613-4_4seq1.xml · derivative · entry 1

CHARTER COMMUNICATIONS, INC. /MO/ · CIK 0001091667 · 10% owner

Charter Communications Holding Company, LLC · CIK 0001850981 · 10% owner

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC · CIK 0001377013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 53,938

Underlying: Common Stock · 53,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of comScore, Inc.'s (the "Company") common stock.

F2 · price: This restricted stock unit award ("Stock Award") was granted to David Kline and Charles Fisher pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. David Kline and Charles Fisher each received 26,969 restricted stock units. This Stock Award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to David Kline and Charles Fisher's continued status as members of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.exercise_date: This restricted stock unit award ("Stock Award") was granted to David Kline and Charles Fisher pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. David Kline and Charles Fisher each received 26,969 restricted stock units. This Stock Award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to David Kline and Charles Fisher's continued status as members of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F2 · derivative.expiration_date: This restricted stock unit award ("Stock Award") was granted to David Kline and Charles Fisher pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. David Kline and Charles Fisher each received 26,969 restricted stock units. This Stock Award, which is prorated for partial service during the 2020-2021 director term, will vest in full on the earliest of (i) the date of the Company's 2021 annual meeting of stockholders, (ii) June 30, 2021, and (iii) the date of a change in control of the Company, subject in each case to David Kline and Charles Fisher's continued status as members of the Company's Board of Directors on the vesting date. Vested units will be delivered in shares of Common Stock upon a separation from service or a change in control of the Company, as set forth in the applicable award notice.

F3 · ownership.nature: David Kline and Charles Fisher each assigned all their rights and interests in the Stock Award to Charter Communications Holding Company, LLC ("Holdings"). Spectrum Management Holding Company, LLC ("Spectrum Management") is the controlling parent company of Holdings. Charter Communications Holdings, LLC ("CCH") is the controlling parent company of Spectrum Management. CCH II, LLC ("CCH II") is the controlling parent company of CCH. Charter Communications, Inc. is the controlling parent company of CCH II..