comScore, Inc (SCOR) Ownership

NASDAQ: SCORTop holders, insider trades and short interest.

SCOR ownership summary

as of October 18, 2026
Institutions
39.9%
of shares outstanding
Insiders
33.13%
of shares outstanding
Shares outstanding
15.2M
Float
2.7M
shares available to trade
Short interest
0.66%
32K shares short
Days to cover
0.88
short interest up 45.0% vs prior month
  • Institutions 39.90%
  • Insiders 33.13%
  • Other investors 26.97%

SCOR top institutional holders

20 largest
comScore, Inc top institutional holders
#Holder% of sharesSharesValueChangeReported
1Cerberus Capital Management LP22.37%3.4M$11.6M—June 30, 2026
2Westerly Capital Management LLC8.63%1.3M$4.5M+413,961 (+46.1%)June 30, 2026
3Vanguard Capital Management, LLC2.24%341K$1.2M+153,511 (+82.0%)June 30, 2026
4CLUNE & ASSOCIATES, LTD.1.10%167K$570,797+40,000 (+31.6%)September 30, 2026
5Beartown Capital Management, LLC0.83%126K$432,259—June 30, 2026
6Acadian Asset Management LLC0.55%84K$287,971—June 30, 2026
7Geode Capital Management, LLC0.42%63K$216,888−398 (−0.6%)June 30, 2026
8Bridgeway Capital Management, LLC0.39%60K$204,942+59,837 (0.0%)June 30, 2026
9BlackRock Inc0.34%51K$174,874+12,086 (+31.0%)June 30, 2026
10Renaissance Technologies Corp0.26%40K$136,729−1,000 (−2.4%)June 30, 2026
11Millennium Management LLC0.21%32K$108,138−5,355 (−14.5%)June 30, 2026
12Citadel Advisors Llc0.15%23K$79,563+23,230 (0.0%)June 30, 2026
13Byrne Asset Management LLC0.14%21K$70,829+2,000 (+10.7%)June 30, 2026
14Vanguard Fiduciary Trust Co0.13%19K$65,955+180 (+0.9%)June 30, 2026
15Pinnacle Associates Inc0.10%16K$53,944+15,750 (0.0%)June 30, 2026
16Dimensional Fund Advisors, Inc.0.10%15K$52,820+15,422 (0.0%)June 30, 2026
17State Street Corp0.09%13K$45,566—June 30, 2026
18HRT FINANCIAL LLC0.07%11K$37,247+10,875 (0.0%)June 30, 2026
19Covestor Ltd0.07%10K$35,538—June 30, 2026
20Wells Fargo & Co0.06%8,780$30,072+8,770 (+87,700.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 756K shares and 3 cut 6,753.

SCOR top mutual fund and ETF holders

20 largest
comScore, Inc top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest1.88%285K$976,793—August 31, 2026
2Jacob Internet Inv1.02%155K$531,731−53,500 (−25.6%)June 30, 2026
3Jacob Discovery Fd Instl0.36%54K$185,995−6,500 (−10.7%)June 30, 2026
4Bridgeway Omni Small-Cap Value N0.21%32K$111,312+32,500 (0.0%)June 30, 2026
5Fidelity Extended Market Index0.15%23K$80,378−126 (−0.5%)August 31, 2026
6EA Bridgeway Ultra-Small Company Mkt ETF0.11%17K$59,129—September 30, 2026
7Fidelity Nasdaq Composite ETF0.09%14K$46,676—September 30, 2026
8iShares Micro-Cap ETF0.07%11K$37,812−76 (−0.7%)September 30, 2026
9EA Bridgeway Omni Small-Cap Value ETF0.06%8,947$30,643—September 30, 2026
10Fidelity Total Market Index0.05%7,182$24,598—August 31, 2026
11Nuveen NASDAQ 100 Dynamic Overwrite0.05%6,845$23,444—September 30, 2026
12Fidelity Series Total Market Index0.04%6,292$21,550—August 31, 2026
13Fidelity Nasdaq Composite Index0.04%5,608$19,207—August 31, 2026
14Vanguard Balanced Index Inv0.03%5,031$17,231—August 31, 2026
15Dimensional US Sustainability Core 1 ETF0.01%1,888$6,466—September 30, 2026
16LVIP Dimensional US Core Equity 2 Std0.01%1,590$5,446+1,590 (0.0%)June 30, 2026
17Vanguard U.S. Eq Idx £ Acc0.01%1,581$5,415—August 31, 2026
18Victory Extended Market Index0.01%1,561$5,346+1,561 (0.0%)June 30, 2026
19Dimensional Global Core Equity USD Acc0.01%1,541$5,278—August 31, 2026
20DFA US Core Equity 2 I0.01%1,520$5,206—August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

SCOR insider transactions

latest 4
comScore, Inc insider transactions
DateNameTransactionPriceSharesValue
2025-11-14William Paul LivekSell$6.559,900$64,845
2025-11-12William Paul LivekSell$6.852,002$13,714
2025-11-11William Paul LivekSell$7.123,735$26,593
2025-11-10William Paul LivekSell$7.572,206$16,699

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

SCOR shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns SCOR

Institutional investors own 39.9% of comScore's shares and insiders 33.13%. The largest holder is Cerberus Capital Management LP with 22.37% of the shares (3.4M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 3 reduced their stake in the latest filings. Short interest is 0.66% of the float, or 0.88 days of average trading volume. The share count rose 234.3% since 2014.

Related: SCOR analyst forecast, SCOR key metrics. See the SCOR stock overview for the latest quote and news.

SCOR ownership FAQ

Who owns the most comScore stock?

The largest shareholders of comScore are Cerberus Capital Management LP (22.37%), Westerly Capital Management LLC (8.63%), Vanguard Capital Management, LLC (2.24%), CLUNE & ASSOCIATES, LTD. (1.10%), Beartown Capital Management, LLC (0.83%).

What percentage of comScore is owned by institutions?

Institutions hold 39.9% of comScore's shares outstanding; insiders hold 33.13%.

Which funds own comScore?

The largest fund holders of comScore are Vanguard MStar Total Stk Mkt Idx Invest (1.88%), Jacob Internet Inv (1.02%), Jacob Discovery Fd Instl (0.36%), Bridgeway Omni Small-Cap Value N (0.21%), Fidelity Extended Market Index (0.15%).

What is comScore's short interest?

32K shares of comScore were sold short, 0.66% of the float; at the average daily volume it would take 0.88 days to cover.

Are insiders buying or selling comScore?

Of the latest 4 reported insider transactions in comScore (since November 10, 2025), 0 were purchases and 4 were sales.

How many shares of comScore are outstanding?

comScore has 15.2M shares outstanding, of which 2.7M are in the public float.

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