comScore, Inc.: 5%+ holders

As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of comScore, Inc. The largest reported stake is Charter Communications, Inc.'s, at 49.99%. 12 filings are on record since September 16, 2025 (Schedule 13D/A, August 21, 2026).

Who owns comScore, Inc.?

Liberty Broadband Corporation also filed stake reports on 1 other company ↓

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Key facts

• Filing 2026-08-21 · Reporting person: Charter Communications, Inc. · Sole voting: 0 · Shared voting: 15,090,681 · Sole dispositive: 0 · Shared dispositive: 15,090,681 · SCHEDULE 13D/A, 2026-08-21
• Filing 2026-08-21 · Reporting person: Liberty Broadband Corporation · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-08-21
• Filed 2026-05-06 · Holder: Wpp Plc · Percent: 3.8% · SCHEDULE 13D/A
• Filed 2026-02-17 · Holder: Westerly Capital Management, LLC · Percent: 9.4% · SCHEDULE 13G/A
• Filed 2026-02-03 · Holder: Mount Logan Capital Inc. · Percent: 1.7% · SCHEDULE 13G/A

comScore, Inc. has 12 Schedule 13D or 13G filings on record since 2025-09-16. 3 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.

Layoffs on record: 1 filing or notice, latest 2026-08-11 (layoff filings and notices).

Holders

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More on comScore, Inc. and the records around it.

comScore, Inc. elsewhere on the record

• Leadership changes Aug 2026
• Layoff notices Aug 2026
• Who owns it

Companies that share a holder

• Liberty Broadband Corporation also filed stake reports on 1 other company: Charter Communications, Inc. (Aug 2026)
• WESTERLY CAPITAL MANAGEMENT, LLC also filed stake reports on 2 other companies: HARTE HANKS INC (Aug 2026)

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Voting and dispositive power, as filed

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The latest filing identifies comScore, Inc. by CUSIP 20564W105 and gives its principal executive office as 11950 Democracy Drive, Suite 600, Reston, VA 20190 (SCHEDULE 13D/A, 2026-08-21).

Source of funds (Item 3)

The information set forth in Item 4 of this Statement is incorporated herein by reference.Charter Communications, Inc., SCHEDULE 13D/A, 2026-08-21

Purpose of Transaction (Item 4)

Charter Communications, Inc.

The information set forth in Item 4 of the Schedule 13D is amended to incorporate the following at the end thereof: On August 19, 2026, Charter Communications, Inc., a Delaware corporation ("Charter Parent"), completed its previously announced acquisition of Liberty Broadband Corporation, a Delaware corporation ("Liberty"), pursuant to that certain Agreement and Plan of Merger, dated as of November 12, 2024 (the "Merger Agreement"), by and among Charter Parent, Fusion Merger Sub 1, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of Charter Parent ("Merger LLC"), Fusion Merger Sub 2, Inc., a Delaware corporation and a direct wholly owned subsidiary of Merger LLC ("Merger Sub"), pursuant to which (i) Merger Sub merged with and into Liberty (the "Merger"), with Liberty surviving the Merger as the surviving corporation and a wholly owned subsidiary of Merger LLC, and (ii) immediately following the Merger, Liberty (as the surviving corporation in the Merger) merged with and into Merger LLC (the "Upstream Merger", and together with the Merger, the "Combination"), with Merger LLC surviving the Upstream Merger as the surviving company and a wholly owned subsidiary of Charter Parent. In connection with the completion of the Combination, Charter Parent became the beneficial owner of 3,286,825 shares of Common Stock held by Liberty and 4,223,621 shares of Common Stock issuable upon conversion of 4,223,621 shares of Series C Preferred Stock held by …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-08-21; the filing has the rest

Liberty Broadband Corporation

The information contained in Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following information: On August 19, 2026, the Reporting Person was acquired by Charter Communications, Inc. ("Charter"), pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 12, 2024, by and among Charter, Fusion Merger Sub 1, LLC, a Delaware limited liability company and wholly owned direct subsidiary of Charter ("Merger LLC"), and Fusion Merger Sub 2, Inc., a Delaware corporation and wholly owned direct subsidiary of Merger LLC ("Merger Sub"), pursuant to which (i) Merger Sub merged with and into the Reporting Person (the "Merger"), with the Reporting Person surviving the Merger as the surviving corporation and a wholly owned subsidiary of Merger LLC, and (ii) immediately following the Merger, the Reporting Person (as the surviving corporation in the Merger) merged with and into Merger LLC (the "Upstream Merger", and together with the Merger, the "Combination"), with Merger LLC surviving the Upstream Merger as the surviving company and a wholly owned subsidiary of Charter. In connection with the completion of the Merger on August 19, 2026, the Reporting Person no longer beneficially owns any shares of Common Stock, including any shares of Series C Preferred Stock.Item 4 of the SCHEDULE 13D/A filed 2026-08-21

Pine Investor, LLC

Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following paragraphs: On December 19, 2025, the Issuer held a special meeting of stockholders, at which the Issuer's stockholders approved proposals relating to the Transaction. The Transaction was subsequently consummated by the Issuer and the Stockholders at the Closing. In connection with the Closing, the Issuer and the Stockholders entered into the Second Amended and Restated Stockholders Agreement, dated as of December 29, 2025 (the "Second Amended and Restated Stockholders Agreement"), which governs, among other things, the composition of the Issuer's board of directors (the "Board"), director designation rights, voting and governance matters, transfer restrictions, and certain other rights tied to ownership thresholds. Immediately following the Closing, and pursuant to the Second Amended and Restated Stockholders Agreement, Robert Davenport, a Managing Director of Pine and a Senior Managing Director of Cerberus, was appointed to the Issuer's Board as the Reporting Persons' designee. Except as described herein, the Reporting Persons do not have any present plans or proposals that relate to or would result in any of the actions described in Items 4(a) through 4(j) of Schedule 13D.Item 4 of the SCHEDULE 13D/A filed 2025-12-31

Timeline

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Questions about who owns comScore, Inc.

Who owns comScore, Inc.?

On this page, 3 holders' latest ownership filings report 5% or more of comScore, Inc.: Charter Communications, Inc. (49.99%, Schedule 13D/A, filed 2026-08-21), Pine Investor, LLC (39.9%, Schedule 13D/A, filed 2025-12-31) and Westerly Capital Management, LLC (9.4%, Schedule 13G/A, filed 2026-02-17).

Who are the largest shareholders of comScore, Inc.?

By the share each holder's latest filing reports, the largest holders of comScore, Inc. on this page are Charter Communications, Inc. (49.99%), Pine Investor, LLC (39.9%) and Westerly Capital Management, LLC (9.4%).

When did Charter Communications, Inc. buy into comScore, Inc.?

The filings give report dates, not purchase dates. The earliest filing from Charter Communications, Inc. on this page is the Schedule 13D/A, filed 2025-09-30, reporting 24.55%; its latest, Schedule 13D/A filed 2026-08-21, reports 49.99%. That earliest filing is itself an amendment, which updates an earlier report.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 12 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

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