Comscore, Inc. (SCOR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

5,198,165Shares Outstanding

362,224Shares held by institutions

$2,600,768Value of institutional holdings

86.13%Institutional ownership %

292.68%Shares Changed QoQ

24No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 24 institutional investors hold a position in Comscore, Inc. (NASDAQ:SCOR).

Institutional ownership in Comscore edged up to 86.1% in December 2025, compared to 22.6% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 292.68%, with a year-over-year a decrease of 14.29% in the count of filers.
A review of institutional activity for Comscore shows 6 of 24 filers increasing their positions, while 7 reduced their stake, and 11 remained unchanged.
The total number of shares held by institutions in Comscore increased to 4.48Mn as of December 2025, a net change of up by 3.34Mn shares quarter on quarter, and up 3.38Mn shares year over year.
Cerberus Capital Management, L.P.'s holding of 3.40Mn shares as of December 31, 2025 makes it the primary institutional investor in Comscore, owning 65.34% of the stock.
Among the most significant buyers of Comscore during December 2025 were Cerberus Capital Management, L.P. (3.29Mn), WESTERLY CAPITAL MANAGEMENT, LLC (70.00K), Byrne Asset Management LLC (14.25K), GEODE CAPITAL MANAGEMENT, LLC (965), UBS Group AG (413).
Leading sellers of Comscore stock in December 2025 included SUSQUEHANNA INTERNATIONAL GROUP, LLP (19.61K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (9.00K), ACADIAN ASSET MANAGEMENT LLC (4.74K), RENAISSANCE TECHNOLOGIES LLC (1.60K), MORGAN STANLEY (238).
The top 10 institutional holders of Comscore for the quarter ending December 2025 included Cerberus Capital Management, L.P. (3.40Mn), WESTERLY CAPITAL MANAGEMENT, LLC (470.00K), VANGUARD GROUP INC (172.73K), CLUNE & ASSOCIATES, LTD. (126.66K), ACADIAN ASSET MANAGEMENT LLC (84.08K), GEODE CAPITAL MANAGEMENT, LLC (52.93K), RENAISSANCE TECHNOLOGIES LLC (41.72K), BlackRock, Inc. (38.97K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (27.77K), Byrne Asset Management LLC (20.10K).

24 Institutional Holders

362,224 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
Cerberus Capital Management, L.P.	31 Dec, 2025	3,396,479	3,286,825	2,997.45%	$22,077,114.00
WESTERLY CAPITAL MANAGEMENT, LLC	31 Dec, 2025	470,000	70,000	17.50%	$3,055,000.00
VANGUARD GROUP INC	31 Dec, 2025	172,729	0	0.00%	$1,122,739.00
CLUNE & ASSOCIATES, LTD.	31 Dec, 2025	126,656	0	0.00%	$823,264.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	84,079	-4,744	-5.34%	$545.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	52,929	965	1.86%	$344,103.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	41,721	-1,600	-3.69%	$271,187.00
BlackRock, Inc.	31 Dec, 2025	38,972	0	0.00%	$253,319.00
BRIDGEWAY CAPITAL MANAGEMENT, LLC	31 Dec, 2025	27,772	-9,000	-24.48%	$180,518.00
Byrne Asset Management LLC	31 Dec, 2025	20,100	14,250	243.59%	$130,650.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	31 Dec, 2025	19,458	-19,606	-50.19%	$126,477.00
STATE STREET CORP	31 Dec, 2025	13,304	0	0.00%	$86,476.00
Covestor Ltd	31 Dec, 2025	10,376	0	0.00%	$67.00
PNC FINANCIAL SERVICES GROUP, INC.	31 Dec, 2025	1,638	-168	-9.30%	$10,647.00
UBS Group AG	31 Dec, 2025	435	413	1,877.27%	$2,828.00
Tower Research Capital LLC (TRC)	31 Dec, 2025	153	-74	-32.60%	$994.00
MORGAN STANLEY	31 Dec, 2025	106	-238	-69.19%	$689.00
Activest Wealth Management	31 Dec, 2025	100	0	0.00%	$650.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	91	3	3.41%	$591.00
RHUMBLINE ADVISERS	31 Dec, 2025	65	0	0.00%	$422.00

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