Comscore Inc
Ownership
Ownership Structure
Who owns Comscore Inc (SCOR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 17.6% of the shares are freely tradable; institutional investors hold 36.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Cerberus Capital Management LP | 22.37 | 3,396,479 | +0.0 | 06/30/2026 |
| Westerly Capital Management LLC | 8.63 | 1,310,961 | +46.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 2.24 | 340,770 | +82.0 | 06/30/2026 |
| CLUNE & ASSOCIATES, LTD. | 1.10 | 166,656 | +31.6 | 09/30/2026 |
| Beartown Capital Management, LLC | 0.83 | 126,207 | +0.0 | 06/30/2026 |
| Acadian Asset Management LLC | 0.55 | 84,079 | +0.0 | 06/30/2026 |
| Geode Capital Management, LLC | 0.42 | 63,325 | -0.6 | 06/30/2026 |
| Bridgeway Capital Management, LLC | 0.39 | 59,837 | +0.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 1.88 | 285,195 | +0.0 | 09/30/2026 |
| Jacob Internet Inv | 1.02 | 155,250 | -25.6 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Charter Communications, Inc. /Mo/ | 10% Owner | 6,582,008 | 19,746,024 $ | Aug 19, 2026 | indirect |
| Livek William Paul | Director | 217,473 | 652,419 $ | Aug 28, 2026 | direct |
| McLaughlin Matthew F. | Chief Executive Officer | 185,739 | 557,217 $ | Sep 8, 2026 | direct |
| Kline David | Director | 7,000 | 21,000 $ | Aug 20, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 8, 2026 | McLaughlin Matthew F. | Chief Executive Officer | Buy | 3,367 | 5.19 | 17,475 |
| Sep 4, 2026 | McLaughlin Matthew F. | Chief Executive Officer | Buy | 16,633 | 5.06 | 84,163 |
| Aug 28, 2026 | Livek William Paul | Director | Buy | 20,000 | 5.23 | 104,600 |
| Aug 26, 2026 | McLaughlin Matthew F. | Chief Executive Officer | Buy | 20,000 | 5.26 | 105,200 |
| Aug 20, 2026 | Kline David | Director | Buy | 7,000 | 5.29 | 37,030 |
| Aug 19, 2026 | Liberty Broadband Corp | Director | Other | 3,286,825 | – | – |
| Aug 19, 2026 | Charter Communications, Inc. /Mo/ | 10% Owner | Other | 3,286,825 | – | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 12, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.