Company · Ownership research

COMSCORE, INC. SCOR

CIK 0001158172 · CUSIP 20564W204

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 20564W204 (SCOR), not CUSIP 20564W105 (SCOR), and does not merge CUSIPs.

This page lists the top 20 of 30 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	WESTERLY CAPITAL MANAGEMENT, LLC CIK 1546172 · View history	$2.71M 395,000 shares	1.30%	+85.10K(+27.50%)Added	SEC filing ↗ May 15, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$1.19M 172,729 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 9, 2025	▾
03	Factor Wealth Management LTD CIK 2055816 · View history	$870.13K 126,656 shares	0.27%	0(0.00%)Unchanged	SEC filing ↗ Apr 28, 2025	▾
04	Cerberus Capital Management, L.P. CIK 1525907 · View history	$753.32K 109,654 shares	0.02%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
05	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$609.00K 88,823 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 21, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$353.81K 51,489 shares	0.00%	+1.05K(+2.10%)Added	SEC filing ↗ May 13, 2025	▾
07	BlackRock, Inc. CIK 2012383 · View history	$337.17K 49,078 shares	0.00%	-192(-0.40%)Reduced	SEC filing ↗ May 2, 2025	▾
08	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$329.16K 47,913 shares	0.00%	+17.84K(+59.30%)Added	SEC filing ↗ May 14, 2025	▾
09	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$288.68K 42,021 shares	0.00%	-3.42K(-7.50%)Reduced	SEC filing ↗ May 14, 2025	▾
10	BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history	$252.62K 36,772 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
11	Quinn Opportunity Partners LLC CIK 1633275 · View history	$104.53K 15,216 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2025	▾
12	STATE STREET CORP CIK 93751 · View history	$91.40K 13,304 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
13	Heron Bay Capital Management CIK 1842149 · View history	$76.81K 11,181 shares	0.02%	-16.14K(-59.10%)Reduced	SEC filing ↗ May 13, 2025	▾
14	BARCLAYS PLC CIK 312069 · Amended · View history	$19.20K 2,795 shares	0.00%	-1.22K(-30.30%)Reduced	SEC filing ↗ Mar 17, 2026	▾
15	UBS Group AG CIK 1610520 · View history	$18.10K 2,634 shares	0.00%	+1.10K(+71.40%)Added	SEC filing ↗ May 13, 2025	▾
16	PNC FINANCIAL SERVICES GROUP, INC. CIK 713676 · View history	$6.87K 1,000 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 9, 2025	▾
17	Tower Research Capital LLC (TRC) CIK 1533421 · View history	$3.46K 503 shares	0.00%	-353(-41.20%)Reduced	SEC filing ↗ May 15, 2025	▾
18	Garde Capital, Inc. CIK 1616328 · View history	$3.44K 500 shares	0.00%	+500New	SEC filing ↗ Apr 22, 2025	▾
19	ROYAL BANK OF CANADA CIK 1000275 · Amended · View history	$3.00K 500 shares	0.00%	+500New	SEC filing ↗ May 15, 2025	▾
20	MORGAN STANLEY CIK 895421 · View history	$2.36K 344 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾

Showing 20 / 30 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

1,168,485

Not deduplicated across managers

Disclosed value

$8.03M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

COMSCORE, INC. · Q1 2025

Explore all 30 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.