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 25 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	Cerberus Capital Management, L.P. CIK 1525907 · View history	$23.57M 3,396,479 shares	0.90%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
02	WESTERLY CAPITAL MANAGEMENT, LLC CIK 1546172 · View history	$6.23M 897,000 shares	1.92%	+427.00K(+90.90%)Added	SEC filing ↗ May 15, 2026	▾
03	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$1.30M 187,259 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
04	Factor Wealth Management LTD CIK 2055816 · View history	$878.99K 126,656 shares	0.17%	0(0.00%)Unchanged	SEC filing ↗ Apr 20, 2026	▾
05	Beartown Capital Management, LLC CIK 1877162 · View history	$875.88K 126,207 shares	0.69%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2026	▾
06	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$582.00K 84,079 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 13, 2026	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$442.31K 63,723 shares	0.00%	+10.79K(+20.40%)Added	SEC filing ↗ May 15, 2026	▾
08	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$283.99K 40,921 shares	0.00%	-800(-1.90%)Reduced	SEC filing ↗ May 14, 2026	▾
09	BlackRock, Inc. CIK 2012383 · View history	$270.47K 38,972 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 13, 2026	▾
10	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$256.28K 36,928 shares	0.00%	+36.93KNew	SEC filing ↗ May 15, 2026	▾
11	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$143.67K 20,702 shares	0.00%	+1.24K(+6.40%)Added	SEC filing ↗ May 15, 2026	▾
12	VANGUARD FIDUCIARY TRUST CO CIK 933478 · Amended · View history	$132.39K 19,077 shares	0.00%	—	SEC filing ↗ May 8, 2026	▾
13	STATE STREET CORP CIK 93751 · View history	$92.33K 13,304 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
14	Covestor Ltd CIK 1909846 · View history	$72.00K 10,376 shares	0.05%	0(0.00%)Unchanged	SEC filing ↗ May 5, 2026	▾
15	Vanguard Global Advisers, LLC CIK 1811242 · Amended · View history	$10.97K 1,581 shares	0.00%	—	SEC filing ↗ May 8, 2026	▾
16	Tower Research Capital LLC (TRC) CIK 1533421 · View history	$10.54K 1,518 shares	0.00%	+1.36K(+892.20%)Added	SEC filing ↗ May 15, 2026	▾
17	UBS Group AG CIK 1610520 · View history	$8.04K 1,159 shares	0.00%	+724(+166.40%)Added	SEC filing ↗ May 5, 2026	▾
18	PNC FINANCIAL SERVICES GROUP, INC. CIK 713676 · View history	$4.43K 638 shares	0.00%	-1.00K(-61.10%)Reduced	SEC filing ↗ May 8, 2026	▾
19	MORGAN STANLEY CIK 895421 · View history	$736.00 106 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
20	Activest Wealth Management CIK 1883134 · View history	$694.00 100 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Apr 15, 2026	▾

Showing 20 / 25 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

5,066,897

Not deduplicated across managers

Disclosed value

$35.16M

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 2026

Explore all 25 reporting institutions.

This page includes 20 of 25 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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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.