- 29 Dec 2025 Form 4 Insider Report for COMSCORE, INC. (SCOR)

Reporting relationship: 10%+ Owner
Issuer ticker: SCOR
Reported as of: 29 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 31 Dec 2025, 16:21:39 UTC
Prior SEC filing: 03 Jul 2025
Next SEC filing: 18 Jun 2026
Source filing: View source filing
Reporting owner signature: Charter Communications, Inc. By: Jennifer A. Smith, Vice President /s/ Jennifer A. Smith

Key filing fact

CHARTER COMMUNICATIONS, INC. /MO/ filed Form 4 for COMSCORE, INC. (SCOR) on 31 Dec 2025.

Key facts

This page summarizes CHARTER COMMUNICATIONS, INC. /MO/'s Form 4 filing for COMSCORE, INC. (SCOR).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 31 Dec 2025, 16:21.

Change

Previous filing in this sequence was filed on 03 Jul 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (5)

CIK 0001091667 Primary reporting owner

CHARTER COMMUNICATIONS, INC. /MO/

Relationship: 10%+ Owner
Address: 400 WASHINGTON BLVD., STAMFORD
Signature: Charter Communications, Inc. By: Jennifer A. Smith, Vice President /s/ Jennifer A. Smith
Signature date: 31 Dec 2025

CIK 0001850981

Charter Communications Holding Company, LLC

Relationship: 10%+ Owner
Address: 12405 POWERSCOURT DRIVE, ST. LOUIS
Signature: Charter Communications Holding Company, LLC By: Jennifer A. Smith, Vice President /s/ Jennifer A. Smith
Signature date: 31 Dec 2025

CIK 0001377013

SPECTRUM MANAGEMENT HOLDING COMPANY, LLC

Relationship: 10%+ Owner
Address: 12405 POWERSCOURT DRIVE, ST. LOUIS
Signature: Spectrum Management Holding Company, LLC By: Jennifer A. Smith, Vice President /s/ Jennifer A. Smith
Signature date: 31 Dec 2025

CIK 0001085476

CHARTER COMMUNICATIONS HOLDINGS LLC

Relationship: 10%+ Owner
Address: 12405 POWERSCOURT DRIVE, ST. LOUIS
Signature: Charter Communications Holdings, LLC By: Jennifer A. Smith, Vice President /s/ Jennifer A. Smith
Signature date: 31 Dec 2025

CIK 0001266604

CCH II LLC

Relationship: 10%+ Owner
Address: 12405 POWERSCOURT DRIVE, ST. LOUIS
Signature: CCH II, LLC By: Jennifer A. Smith, Vice President /s/ Jennifer A. Smith
Signature date: 31 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SCOR transaction

Common Stock

Award

Transaction value
Shares: +3,286,825
Change %: +6602%
Price
Shares after: 3,336,614
Date: 29 Dec 2025
Ownership: See Footnote
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SCOR transaction Derivative

Series B Convertible Preferred Stock

Disposed to Issuer

Transaction value
Shares: -31,928,301
Change %: -100%
Price
Shares after: 0
Date: 29 Dec 2025
Ownership: See Footnote
Underlying class: Common Stock
Underlying amount: 1,603,578
Exercise price
Footnotes: F1, F2, F3

SCOR transaction Derivative

Series C Convertible Preferred Stock

Award

Transaction value
Shares: +4,223,621
Change %
Price
Shares after: 4,223,621
Date: 29 Dec 2025
Ownership: See Footnote
Underlying class: Common Stock
Underlying amount: 4,223,621
Exercise price
Footnotes: F1, F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.

Footnote F4

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.