COMSCORE INC (SCOR) Institutional Shareholders
COMSCORE INC (SCOR) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $42.44M in SCOR holdings during the latest filing period.
Cerberus Capital Management, L.P. is currently the largest disclosed institutional shareholder of SCOR tracked by InsiderSet, reporting ownership valued at approximately $25.07M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $16.54M, representing an estimated loss of -34.01% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 97% of the total disclosed SCOR value among the investors covered in this analysis. Major shareholders include Cerberus Capital Management, L.P., Westerly Capital Management, Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in COMSCORE INC (SCOR).
This page ranks the largest institutional SCOR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
26
Total Reported Value
$42.44M
Largest Holder
Cerberus Capital Management, L.P.
Largest Position
$25.07M
Insider Transactions (90d)
8
Latest Filing Quarter
Q2 2026
New Institutional Positions
32
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Cerberus Capital Management, L.P. | 1.20% | 3,396,479 | $25,066,015 | $16,540,853 | -$8,525,162 | -34.01% | |
| Westerly Capital Management, Llc | 1.79% | 1,310,961 | $9,674,892 | $6,384,380 | -$3,290,512 | -34.01% | |
| Vanguard Capital Management Llc | 0.00% | 340,770 | $2,514,883 | $1,659,550 | -$855,333 | -34.01% | |
| Factor Wealth Management Ltd | 0.14% | 126,656 | $934,721 | $616,815 | -$317,906 | -34.01% | |
| Beartown Capital Management, Llc | 0.41% | 126,207 | $931,408 | $614,628 | -$316,780 | -34.01% | |
| Acadian Asset Management Llc | 0.00% | 84,079 | $618,000 | $409,465 | -$208,535 | -33.74% | |
| Geode Capital Management, Llc | 0.00% | 63,325 | $467,421 | $308,393 | -$159,028 | -34.02% | |
| Bridgeway Capital Management, Llc | 0.01% | 59,837 | $441,597 | $291,406 | -$150,191 | -34.01% | |
| Blackrock, Inc. | 0.00% | 51,058 | $376,807 | $248,652 | -$128,155 | -34.01% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 39,921 | $294,617 | $194,415 | -$100,202 | -34.01% |
| Millennium Management Llc | 0.00% | 31,573 | $233,009 | $153,761 | -$79,248 | -34.01% | |
| Citadel Advisors Llc | 0.00% | 23,230 | $171,437 | $113,130 | -$58,307 | -34.01% | |
| Vanguard Fiduciary Trust Co | 0.00% | 19,257 | $142,117 | $93,782 | -$48,335 | -34.01% | |
| Pinnacle Associates Ltd | 0.00% | 15,750 | $116,235 | $76,703 | -$39,533 | -34.01% | |
| Dimensional Fund Advisors Lp | 0.00% | 15,422 | $113,814 | $75,105 | -$38,709 | -34.01% | |
| State Street Corp | 0.00% | 13,304 | $98,184 | $64,790 | -$33,394 | -34.01% | |
| Hrt Financial Lp | 0.00% | 10,875 | $80,000 | $52,961 | -$27,039 | -33.80% | |
| Covestor Ltd | 0.04% | 10,376 | $77,000 | $50,531 | -$26,469 | -34.38% | |
| Wells Fargo & Company/Mn | 0.00% | 8,780 | $64,796 | $42,759 | -$22,037 | -34.01% | |
| Vanguard Global Advisers, Llc | 0.00% | 1,581 | $11,668 | $7,699 | -$3,969 | -34.01% | |
| Tower Research Capital Llc (Trc) | 0.00% | 1,194 | $8,812 | $5,815 | -$2,997 | -34.01% | |
| Morgan Stanley | 0.00% | 106 | $782 | $516 | -$266 | -33.99% | |
| Activest Wealth Management | 0.00% | 100 | $738 | $487 | -$251 | -34.01% | |
| Bnp Paribas Financial Markets | 0.00% | 10 | $74 | $49 | -$25 | -34.19% | |
| Osaic Holdings, Inc. | 0.00% | 1 | $7 | $5 | -$2 | -30.43% | |
| Sbi Securities Co., Ltd. | 0.00% | 1 | $7 | $5 | -$2 | -30.43% |
Frequently asked questions about SCOR
Who owns the most SCOR stock?
The largest holders of SCOR are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for COMSCORE INC (SCOR).
Is SCOR widely held by superinvestors?
Many widely followed stocks like SCOR appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SCOR is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.