COMSCORE INC SCOR
COM NEW · Common Stock · CUSIP 20564W204
American market research company
- SectorIndustrials
- IndustryServices-Business Services, NEC
- HeadquartersReston, VA
- Founded1999
- Websitecomscore.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 15.2m as of 2026-08-10, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $7.38.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q4 2023 | 32 |
| Q1 2024 | 32 |
| Q2 2024 | 29 |
| Q3 2024 | 26 |
| Q4 2024 | 28 |
| Q1 2025 | 30 |
| Q2 2025 | 27 |
| Q3 2025 | 29 |
| Q4 2025 | 24 |
| Q1 2026 | 25 |
| Q2 2026 | 27 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 5 | 12 |
| Q4 2024 | 8 | 11 |
| Q1 2025 | 9 | 8 |
| Q2 2025 | 7 | 9 |
| Q3 2025 | 9 | 7 |
| Q4 2025 | 5 | 13 |
| Q1 2026 | 7 | 4 |
| Q2 2026 | 11 | 9 |
Biggest buyers
| WESTERLY CAPITAL MANAGEMENT, LLC | Added | +414.0k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +153.5k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | New | +59.8k |
| CITADEL ADVISORS LLC | New | +23.2k |
| PINNACLE ASSOCIATES LTD | New | +15.8k |
| DIMENSIONAL FUND ADVISORS LP | New | +15.4k |
| BlackRock, Inc. | Added | +12.1k |
| HRT FINANCIAL LP | New | +10.9k |
| WELLS FARGO & COMPANY/MN | Added | +8.8k |
| VANGUARD FIDUCIARY TRUST CO | Added | +180 |
Biggest sellers
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold out | -20.7k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -5.4k |
| UBS Group AG | Sold out | -1.2k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -1.0k |
| PNC Financial Services Group, Inc. | Sold out | -638 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -398 |
| Tower Research Capital LLC (TRC) | Reduced | -324 |
| RHUMBLINE ADVISERS | Sold out | -65 |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -25 |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Pine Investor, LLC
13D · may seek influence
+12.7 pts · filed 2025-12-31
Stated purposeItem 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… Full filing |
39.9% |
| Irrevocable Larson Family Investment Trust 13G · passive investor -0.1 pts · filed 2025-01-28 | 5.8% |
Fell to 5% or below in the last year: Mount Logan Capital Inc. (1.7%, 2026-02-03)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 1 | $121.9k | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 3 | $348.5k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-08 | McLaughlin Matthew F. Chief Executive Officer, director | Bought | $17.5k3.4k shares |
| 2026-09-04 | McLaughlin Matthew F. Chief Executive Officer, director | Bought | $84.2k16.6k shares |
| 2026-08-28 | LIVEK WILLIAM PAUL Director | Bought | $104.6k20.0k shares |
| 2026-08-26 | McLaughlin Matthew F. Chief Executive Officer, director | Bought | $105.2k20.0k shares |
| 2026-08-20 | Kline David Director | Bought | $37.0k7.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Cerberus Capital Management, L.P. 1.20% of their portfolio | 3.4m $25.1m | Unchanged |
| WESTERLY CAPITAL MANAGEMENT, LLC 2.38% of their portfolio | 1.3m $9.7m | Added +414.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 340.8k $2.5m | Added +153.5k |
| Factor Wealth Management LTD 0.14% of their portfolio | 126.7k $934.7k | Unchanged |
| Beartown Capital Management, LLC 0.41% of their portfolio | 126.2k $931.4k | Unchanged |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 84.1k $618.0k | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 63.3k $467.4k | Reduced -398 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 59.8k $441.6k | New |
| BlackRock, Inc. 0.00% of their portfolio | 51.1k $376.8k | Added +12.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 39.9k $294.6k | Reduced -1.0k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 31.6k $233.0k | Reduced -5.4k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 23.2k $171.4k | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 19.3k $142.1k | Added +180 |
| PINNACLE ASSOCIATES LTD 0.00% of their portfolio | 15.8k $116.2k | New |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 15.4k $113.8k | New |
| STATE STREET CORP 0.00% of their portfolio | 13.3k $98.2k | Unchanged |
| HRT FINANCIAL LP 0.00% of their portfolio | 10.9k $80.0k | New |
| Covestor Ltd 0.04% of their portfolio | 10.4k $77.0k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 8.8k $64.8k | Added +8.8k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 1.6k $11.7k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 1.2k $8.8k | Reduced -324 |
| MORGAN STANLEY 0.00% of their portfolio | 106 $782 | Unchanged |
| Activest Wealth Management 0.00% of their portfolio | 100 $738 | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 56 $0 | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 10 $74 | Reduced -25 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1 $7 | Unchanged |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 1 $7 | Unchanged |