SCOR Comscore, Inc.
Comscore, Inc. (SCOR) Institutional Ownership
What the institutions did with SCOR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Cerberus Capital Management, L.P. | 3.4M | 58.8% |
| WESTERLY CAPITAL MANAGEMENT, LLC | 1.3M | 22.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 340.8K | 5.9% |
| Factor Wealth Management LTD | 126.7K | 2.2% |
| Beartown Capital Management, LLC | 126.2K | 2.2% |
| ACADIAN ASSET MANAGEMENT LLC | 84.1K | 1.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 63.3K | 1.1% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 59.8K | 1.0% |
| BlackRock, Inc. | 51.1K | 0.9% |
| RENAISSANCE TECHNOLOGIES LLC | 39.9K | 0.7% |
| MILLENNIUM MANAGEMENT LLC | 31.6K | 0.5% |
| CITADEL ADVISORS LLC | 23.2K | 0.4% |
| Byrne Asset Management LLC | 20.7K | 0.4% |
| VANGUARD FIDUCIARY TRUST CO | 19.3K | 0.3% |
| PINNACLE ASSOCIATES LTD | 15.8K | 0.3% |
| DIMENSIONAL FUND ADVISORS LP | 15.4K | 0.3% |
| STATE STREET CORP | 13.3K | 0.2% |
| HRT FINANCIAL LP | 10.9K | 0.2% |
| Covestor Ltd | 10.4K | 0.2% |
| WELLS FARGO & COMPANY/MN | 8.8K | 0.2% |
| Vanguard Global Advisers, LLC | 1.6K | 0.0% |
| Tower Research Capital LLC (TRC) | 1.2K | 0.0% |
| MORGAN STANLEY | 106 | 0.0% |
| Activest Wealth Management | 100 | 0.0% |
| ROYAL BANK OF CANADA | 56 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| WESTERLY CAPITAL MANAGEMENT, LLC | Increased | 897.0K | 1.3M | +414.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 187.3K | 340.8K | +153.5K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | New | 0 | 59.8K | +59.8K |
| CITADEL ADVISORS LLC | New | 0 | 23.2K | +23.2K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 20.7K | 0 | -20.7K |
| PINNACLE ASSOCIATES LTD | New | 0 | 15.8K | +15.8K |
| DIMENSIONAL FUND ADVISORS LP | New | 0 | 15.4K | +15.4K |
| BlackRock, Inc. | Increased | 39.0K | 51.1K | +12.1K |
| HRT FINANCIAL LP | New | 0 | 10.9K | +10.9K |
| WELLS FARGO & COMPANY/MN | Increased | 10 | 8.8K | +8.8K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 36.9K | 31.6K | -5.4K |
| Byrne Asset Management LLC | Increased | 18.7K | 20.7K | +2.0K |
| UBS Group AG | Sold Out | 1.2K | 0 | -1.2K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 40.9K | 39.9K | -1.0K |
| PNC FINANCIAL SERVICES GROUP, INC. | Sold Out | 638 | 0 | -638 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 63.7K | 63.3K | -398 |
| Tower Research Capital LLC (TRC) | Reduced | 1.5K | 1.2K | -324 |
| VANGUARD FIDUCIARY TRUST CO | Increased | 19.1K | 19.3K | +180 |
| RHUMBLINE ADVISERS | Sold Out | 65 | 0 | -65 |
| ROYAL BANK OF CANADA | New | 0 | 56 | +56 |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 35 | 10 | -25 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.