What does CUSIP 20564W105 represent in this 13F holders report?

CUSIP 20564W105 is the security identifier for SCOR - COMSCORE, INC. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

How many institutions held SCOR - COMSCORE, INC. - Common Stock, par value $0.001 per share in Q1 2016?

201 institutional investors reported SCOR - COMSCORE, INC. - Common Stock, par value $0.001 per share for Q1 2016. Use the holders table for investor-level position and value details.

COMSCORE, INC. - Common Stock, par value $0.001 per share (SCOR)

CUSIP: 20564W105

Q1 2016 13F Holders as of 31 Mar 2016

Type / Class: Equity / Common Stock, par value $0.001 per share
Shares outstanding: 5,000,000
Total 13F shares: 45,436,834
Share change: +8,141,268
Total reported value: $1,373,579,605
Put/Call ratio: 138%
Price per share: $30.04
Number of holders: 201
Value change: +$203,526,988
Number of buys: 152
Number of sells: 72

Quarterly Holders Quick Answers

What is CUSIP 20564W105?
CUSIP 20564W105 identifies SCOR - COMSCORE, INC. - Common Stock, par value $0.001 per share in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2016
Previous quarter: Q4 2015

Recent filing periods for CUSIP 20564W105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q1 2024 Q4 2023 Q3 2023

Top shareholders of SCOR - COMSCORE, INC. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
PRIMECAP MANAGEMENT CO/CA/	13F	Company	77%	3,869,832	$159,244,000	—	31 Dec 2015	13F
VANGUARD GROUP INC	13F	Company	51%	2,531,585	$104,175,000	—	31 Dec 2015	13F
BlackRock Fund Advisors	13F	Company	42%	2,091,343	$86,059,000	—	31 Dec 2015	13F
RS INVESTMENT MANAGEMENT CO LLC	13F	Company	36%	1,794,041	$73,825,000	—	31 Dec 2015	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	25%	1,265,978	$52,095,000	—	31 Dec 2015	13F
Clearbridge Investments, LLC	13F	Company	23%	1,169,165	$48,111,000	—	31 Dec 2015	13F
Pivot Point Capital Partners, LLC	13F	Company	20%	1,009,950	$41,560,000	—	31 Dec 2015	13F
NEXT CENTURY GROWTH INVESTORS LLC	13F	Company	20%	1,006,328	$41,410,000	—	31 Dec 2015	13F
TimesSquare Capital Management, LLC	13F	Company	19%	945,570	$38,910,000	—	31 Dec 2015	13F
KALMAR INVESTMENTS INC /DE/	13F	Company	18%	900,219	$37,044,000	—	31 Dec 2015	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	17%	825,271	$33,960,000	—	31 Dec 2015	13F
KORNITZER CAPITAL MANAGEMENT INC /KS	13F	Company	16%	784,439	$32,280,000	—	31 Dec 2015	13F
HHR Asset Management, LLC	13F	Company	14%	722,840	$29,745,000	—	31 Dec 2015	13F
LORD, ABBETT & CO. LLC	13F	Company	14%	722,241	$29,720,000	—	31 Dec 2015	13F
SG Capital Management LLC	13F	Company	14%	687,278	$28,281,000	—	31 Dec 2015	13F
STATE STREET CORP	13F	Company	13%	653,532	$26,896,000	—	31 Dec 2015	13F
NORTHERN TRUST CORP	13F	Company	13%	634,779	$26,122,000	—	31 Dec 2015	13F
NORGES BANK	13F	Company	12%	618,738	$25,461,000	—	31 Dec 2015	13F
TREMBLANT CAPITAL GROUP	13F	Company	12%	594,852	$24,478,000	—	31 Dec 2015	13F
BAMCO INC /NY/	13F	Company	10%	511,000	$21,028,000	—	31 Dec 2015	13F
Hood River Capital Management LLC	13F	Company	9.5%	476,195	$19,595,000	—	31 Dec 2015	13F
RUSSELL FRANK CO/	13F	Company	8.9%	443,674	$18,638,000	—	31 Dec 2015	13F
FIDUCIARY MANAGEMENT ASSOCIATES LLC	13F	Company	8.8%	441,423	$18,164,000	—	31 Dec 2015	13F
LOOMIS SAYLES & CO L P	13F	Company	8.3%	412,584	$16,978,000	—	31 Dec 2015	13F
Summit Creek Advisors LLC	13F	Company	8.1%	405,899	$16,703,000	—	31 Dec 2015	13F
Bank of New York Mellon Corp	13F	Company	7.8%	388,183	$15,973,000	—	31 Dec 2015	13F
FRED ALGER MANAGEMENT, LLC	13F	Company	6.8%	337,679	$13,895,000	—	31 Dec 2015	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	6.5%	324,990	$13,373,000	—	31 Dec 2015	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	6.5%	323,600	$13,316,000	—	31 Dec 2015	13F
BLACKROCK ADVISORS LLC	13F	Company	6.4%	318,813	$13,119,000	—	31 Dec 2015	13F
TEACHERS ADVISORS, LLC	13F	Company	6.3%	317,002	$13,045,000	—	31 Dec 2015	13F
Artisan Partners Limited Partnership	13F	Company	6%	298,692	$12,291,000	—	31 Dec 2015	13F
Apex Capital Management	13F	Company	5.1%	253,974	$10,451,000	—	31 Dec 2015	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	5%	251,699	$10,357,000	—	31 Dec 2015	13F
Polar Capital LLP	13F	Company	5%	251,217	$10,336,000	—	31 Dec 2015	13F
State of New Jersey Common Pension Fund D	13F	Company	5%	250,000	$10,288,000	—	31 Dec 2015	13F
Century Capital Management, LLC	13F	Company	4.8%	242,089	$9,962,000	—	31 Dec 2015	13F
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO	13F	Company	4.8%	241,100	$9,921,000	—	31 Dec 2015	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	4.4%	219,714	$9,041,000	—	31 Dec 2015	13F
AMERIPRISE FINANCIAL INC	13F	Company	4.3%	217,392	$8,946,000	—	31 Dec 2015	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	4.3%	213,738	$8,795,000	—	31 Dec 2015	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	4.3%	212,808	$8,757,000	—	31 Dec 2015	13F
ZWJ INVESTMENT COUNSEL INC	13F	Company	4.1%	203,185	$8,361,000	—	31 Dec 2015	13F
DISCIPLINED GROWTH INVESTORS INC /MN	13F	Company	3.8%	191,875	$7,896,000	—	31 Dec 2015	13F
Nichols Asset Management LLC	13F	Company	3.8%	190,968	$7,858,000	—	31 Dec 2015	13F
Invesco Ltd.	13F	Company	3.2%	158,103	$6,506,000	—	31 Dec 2015	13F
OMERS ADMINISTRATION Corp	13F	Company	3.1%	154,400	$6,354,000	—	31 Dec 2015	13F
COLUMBUS CIRCLE INVESTORS	13F	Company	3%	152,392	$6,271,000	—	31 Dec 2015	13F
BANK OF AMERICA CORP /DE/	13F	Company	3%	151,906	$6,251,000	—	31 Dec 2015	13F
D. E. Shaw & Co., Inc.	13F	Company	2.9%	147,476	$6,069,000	—	31 Dec 2015	13F

Institutional Holders of COMSCORE, INC. - Common Stock, par value $0.001 per share (SCOR) as of Q1 2016

As of 31 Mar 2016, COMSCORE, INC. - Common Stock, par value $0.001 per share (SCOR) was held by 201 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 45,436,834 shares. The largest 10 holders included PRIMECAP MANAGEMENT CO/CA/, VANGUARD GROUP INC, BlackRock Fund Advisors, FRED ALGER MANAGEMENT INC, TREMBLANT CAPITAL GROUP, RE ADVISERS CORP, STATE STREET CORP, BlackRock Institutional Trust Company, N.A., Clearbridge Investments, LLC, and HUFF W R ASSET MANAGEMENT CO LLC /DE/. This page lists 201 institutional shareholders reporting positions in this security for the Q1 2016 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2016 vs Q4 2015 Across Filers

Q4 2015 holders

173

Q1 2016 holders

201

Holder diff

Investor	Q4 2015 Shares	Q1 2016 Shares	Share Diff	Share Chg %	Q4 2015 Value $	Q1 2016 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.