COMSCORE INC (SCOR)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
Institutions report 5,672,776 shares against 15,184,326 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Cerberus Capital Management, L.P. | $25.1M | 3,396,479 | 1.20% | 10q | HELD |
| WESTERLY CAPITAL MANAGEMENT, LLC | $9.7M | 1,310,961 | 1.79% | 11q | +46.1%+$3.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $2.5M | 340,770 | 0.00% | 2q | +82.0%+$1.1M |
| Factor Wealth Management LTD | $934.7K | 126,656 | 0.14% | 7q | HELD |
| Beartown Capital Management, LLC | $931.4K | 126,207 | 0.41% | 3q | HELD |
| GEODE CAPITAL MANAGEMENT, LLC | $467.4K | 63,325 | 0.00% | 11q | -0.6%-$2.9K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $441.6K | 59,837 | 0.01% | new | NEW |
| BlackRock, Inc. | $376.8K | 51,058 | 0.00% | 8q | +31.0%+$89.2K |
| RENAISSANCE TECHNOLOGIES LLC | $294.6K | 39,921 | 0.00% | 11q | -2.4%-$7.4K |
| MILLENNIUM MANAGEMENT LLC | $233.0K | 31,573 | 0.00% | 2q | -14.5%-$39.5K |
| CITADEL ADVISORS LLC | $171.4K | 23,230 | 0.00% | new | NEW |
| Byrne Asset Management LLC | $152.6K | 20,680 | 0.08% | 6q | +10.7%+$14.8K |
| VANGUARD FIDUCIARY TRUST CO | $142.1K | 19,257 | 0.00% | 2q | +0.9%+$1.3K |
| PINNACLE ASSOCIATES LTD | $116.2K | 15,750 | 0.00% | new | NEW |
| DIMENSIONAL FUND ADVISORS LP | $113.8K | 15,422 | 0.00% | new | NEW |
| STATE STREET CORP | $98.2K | 13,304 | 0.00% | 11q | HELD |
| WELLS FARGO & COMPANY/MN | $64.8K | 8,780 | 0.00% | 8q | +43800.0%+$64.6K |
| MERCER GLOBAL ADVISORS INC /ADV | $48.1K | 6,517 | 0.00% | new | NEW |
| Vanguard Global Advisers, LLC | $11.7K | 1,581 | 0.00% | 2q | HELD |
| Tower Research Capital LLC (TRC) | $8.8K | 1,194 | 0.00% | 8q | -21.3%-$2.4K |
| MORGAN STANLEY | $782 | 106 | 0.00% | 11q | HELD |
| Activest Wealth Management | $738 | 100 | 0.00% | 9q | HELD |
| ACADIAN ASSET MANAGEMENT LLC | $618 | 84,079 | 0.00% | 11q | HELD |
| HRT FINANCIAL LP | $80 | 10,875 | 0.00% | new | NEW |
| Covestor Ltd | $77 | 10,376 | 0.04% | 4q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $74 | 10 | 0.00% | 10q | -71.4% |
| OSAIC HOLDINGS, INC. | $7 | 1 | 0.00% | 4q | HELD |
| SBI Securities Co., Ltd. | $7 | 1 | 0.00% | 6q | HELD |
| ROYAL BANK OF CANADA | $0 | 56 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-21 | 13D/A | Charter Communications, Inc.with 4 co-filers | 50.0% |
| 2026-08-21 | 13D/A | Liberty Broadband Corporation | 0.0% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 26 | $41.9M | 5,672,776 | 6 | 6 | 5 | 0.0% |
| Q1 2026 | 24 | $34.6M | 4,991,132 | 1 | 7 | 3 | 0.0% |
| Q4 2025 | 23 | $29.3M | 4,508,937 | 0 | 6 | 6 | 0.0% |
| Q3 2025 | 28 | $9.4M | 1,077,275 | 4 | 5 | 5 | 0.0% |
| Q2 2025 | 26 | $5.1M | 1,064,074 | 1 | 7 | 5 | 0.0% |
| Q1 2025 | 28 | $7.4M | 1,084,115 | 4 | 6 | 5 | 0.0% |
| Q4 2024 | 25 | $5.9M | 1,011,725 | 3 | 4 | 6 | 0.0% |
| Q3 2024 | 24 | $5.7M | 839,792 | 3 | 2 | 6 | 0.0% |
| Q2 2024 | 27 | $14.6M | 1,026,612 | 2 | 4 | 8 | 0.0% |
| Q1 2024 | 28 | $16.0M | 1,037,256 | 5 | 9 | 2 | 0.0% |
| Q4 2023 | 29 | $16.9M | 1,013,553 | 27 | 0 | 1 | 0.0% |
| Q3 2023 | 57 | $16.1M | 26,187,643 | 4 | 10 | 17 | 0.0% |
| Q2 2023 | 62 | $24.0M | 29,569,572 | 8 | 13 | 13 | 0.1% |
| Q1 2023 | 67 | $36.2M | 29,409,868 | 13 | 14 | 13 | 0.0% |
| Q4 2022 | 63 | $33.2M | 28,664,950 | 12 | 11 | 19 | 0.0% |
| Q3 2022 | 77 | $84.9M | 51,266,893 | 3 | 17 | 33 | 0.0% |
| Q2 2022 | 86 | $109.8M | 53,280,435 | 14 | 30 | 31 | 0.1% |
| Q1 2022 | 96 | $164.9M | 56,658,019 | 9 | 25 | 35 | 0.1% |
| Q4 2021 | 100 | $186.2M | 55,637,347 | 10 | 32 | 27 | 0.2% |
| Q3 2021 | 106 | $214.4M | 54,759,371 | 13 | 31 | 30 | 0.4% |
| Q2 2021 | 114 | $282.7M | 56,175,818 | 19 | 44 | 26 | 0.6% |
| Q1 2021 | 101 | $196.5M | 53,347,614 | 24 | 33 | 24 | 0.6% |
| Q4 2020 | 86 | $130.9M | 52,400,314 | 14 | 25 | 34 | 0.3% |
| Q3 2020 | 85 | $107.9M | 52,811,457 | 6 | 27 | 31 | 0.2% |
| Q2 2020 | 89 | $167.9M | 55,917,481 | 12 | 32 | 27 | 0.3% |
| Q1 2020 | 95 | $147.6M | 52,263,261 | 13 | 33 | 31 | 0.2% |
| Q4 2019 | 103 | $277.3M | 55,952,306 | 24 | 38 | 29 | 0.3% |
| Q3 2019 | 94 | $92.3M | 48,269,337 | 17 | 34 | 25 | 0.1% |
| Q2 2019 | 108 | $275.0M | 53,206,980 | 41 | 41 | 15 | 0.2% |
| Q1 2019 | 84 | $902.5M | 44,982,056 | 21 | 25 | 14 | 0.1% |
| Q4 2018 | 71 | $642.4M | 44,485,899 | 1 | 1 | 1 | 0.1% |