Who owns comScore (SCOR)
Which tracked institutional funds hold SCOR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SCOR company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on SCOR is one-sided between 2026-Q1 and 2026-Q2: 3 added or opened and 1 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SCOR’s largest tracked holder by dollar value, Cerberus Capital Management, L.P., sizes it at 1.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.2pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SCOR divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 25 tracked filers holding SCOR, 11 increased or opened the position and 11 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SCOR between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 1
- ACADIAN ASSET MANAGEMENT LLC$582K
Largest adds
- WESTERLY CAPITAL MANAGEMENT, LLC$3M
- Cerberus Capital Management, L.P.$1M
- VANGUARD CAPITAL MANAGEMENT LLC$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Cerberus Capital Management, L.P. | 3,396,479 | $25M | 57.0% | 2026-Q2 |
| WESTERLY CAPITAL MANAGEMENT, LLC added | 1,310,961 | $10M | 22.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 340,770 | $3M | 5.7% | 2026-Q2 |
| Factor Wealth Management LTD | 126,656 | $935K | 2.1% | 2026-Q2 |
| Beartown Capital Management, LLC | 126,207 | $931K | 2.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 63,325 | $467K | 1.1% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 59,837 | $442K | 1.0% | 2026-Q2 |
| BlackRock, Inc. added | 51,058 | $377K | 0.9% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 39,921 | $295K | 0.7% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 31,573 | $233K | 0.5% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 23,230 | $171K | 0.4% | 2026-Q2 |
| Byrne Asset Management LLC added | 20,680 | $153K | 0.3% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 19,257 | $142K | 0.3% | 2026-Q2 |
| PINNACLE ASSOCIATES LTD new | 15,750 | $116K | 0.3% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP new | 15,422 | $114K | 0.3% | 2026-Q2 |
| STATE STREET CORP | 13,304 | $98K | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 8,780 | $65K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 1,581 | $12K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 1,194 | $9K | 0.0% | 2026-Q2 |
| MORGAN STANLEY | 106 | $782 | 0.0% | 2026-Q2 |
| Activest Wealth Management | 100 | $738 | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 10 | $74 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. | 1 | $7 | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. | 1 | $7 | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 56 | — | 0.0% | 2026-Q2 |
| ACADIAN ASSET MANAGEMENT LLC | 84,079 | $582K | 1.3% | 2026-Q1 stale (1 quarter behind) |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 20,702 | $144K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| Covestor Ltd | 10,376 | $72K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| UBS Group AG added | 1,159 | $8K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| PNC FINANCIAL SERVICES GROUP, INC. trimmed | 638 | $4K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| RHUMBLINE ADVISERS | 65 | $451 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC | 172,729 | $1M | 2.6% | 2025-Q4 stale (2 quarters behind) |
| BANK OF AMERICA CORP /DE/ added | 91 | $591 | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Quinn Opportunity Partners LLC | 15,216 | $133K | 0.3% | 2025-Q3 stale (3 quarters behind) |
| Heron Bay Capital Management trimmed | 10,112 | $88K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| BARCLAYS PLC added | 4,010 | $27K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| CITIGROUP INC new | 20 | $175 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| FMR LLC trimmed | 2 | $16 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Garde Capital, Inc. trimmed | 100 | $482 | 0.0% | 2025-Q2 stale (4 quarters behind) |
| RAYMOND JAMES FINANCIAL INC new | 5 | $24 | 0.0% | 2025-Q2 stale (4 quarters behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.