Name:	comScore Inc.
Industries:	Business Services and Supplies
Revenue:	$125.50M ¹
Profit:	$22.77M ¹
Employees:	581
Headquarters:	11950 DEMOCRACY ROAD SUITE 600 RESTON, Virginia 20190 United States Of America
Website:
www.comscore.com

¹ TTM figures for 30-Sep-2009

Institutional Owners of comScore Inc.

Current Overview | Past Quarters

Breakdown of Ownership of SCOR

by % of Total Shares Outstanding (% TSO)

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	Institutional Owners (53.82%)
	Other Owners (46.18%)

Note: % Total Shares Outstanding is based on the most recent 13F filing made by the instituational investor, as well as the most recent TSO figure for the indicated security.

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Name	% TSO	Shares	Shares change	Market value	Value change	% Change	Other holdings	Report Date
BLACKROCK ADVISORS LLC	3.71%	1,123,711	-159,812	$14,832,985	-$2,109,518	-14.22%	XOM \| MSFT \| GLD \| T \| CVX \| more »	2009-12-31
BLACKROCK FUND ADVISORS	3.18%	963,506		$12,718,279			XOM \| MSFT \| JNJ \| CVX \| T \| more »	2009-12-31
The Vanguard Group, Inc.	2.99%	906,811	29,009	$11,969,905	$382,919	3.20%	BRK'B \| XOM \| MSFT \| JNJ \| PG \| more »	2009-12-31
Morgan Stanley	2.94%	891,516	870,859	$11,768,011	$11,495,339	97.68%	BRK'B \| JPM \| BAC \| XOM \| AAPL \| more »	2009-12-31
CHAMPLAIN INVESTMENT PARTNERS, LLC	2.93%	886,650	59,578	$11,703,780	$786,430	6.72%	WCN \| ATR \| ACV \| IEX \| CHTT \| more »	2009-12-31
SCHRODER INVESTMENT MANAGEMENT GROUP	2.34%	708,400	-266,800	$9,350,880	-$3,521,760	-37.66%	PBR'A \| PBR \| TEVA \| BBD \| AMX \| more »	2009-12-31
ASHFORD CAPITAL MANAGEMENT INC	2.02%	610,300	-19,300	$8,055,960	-$254,760	-3.16%	BRK'B \| EBIX \| TMRK \| EPIQ \| BCPC \| more »	2009-12-31
TURNER INVESTMENT PARTNERS INC	1.89%	571,659	-7,070	$7,545,899	-$93,324	-1.24%	AAPL \| QCOM \| CSCO \| PEP \| GOOG \| more »	2009-12-31
RS INVESTMENT MANAGEMENT CO LLC	1.82%	551,625	-27,667	$7,281,450	-$365,204	-5.02%	CECO \| CMVT \| SGMS \| SWN \| DNR \| more »	2009-12-31
BLACKROCK GROUP LTD	1.72%	520,801	178,951	$6,874,573	$2,362,153	34.36%	BRK'B \| XOM \| MSFT \| CVX \| T \| more »	2009-12-31
BARCLAYS GLOBAL INVESTORS UK HOLDINGS LTD	1.65%	499,141	-732,915	$6,588,661	-$9,674,478	-146.84%	XOM \| MSFT \| PG \| T \| JNJ \| more »	2009-12-31
WEATHERBIE M A & CO INC/MA	1.54%	465,606	-14,668	$6,145,999	-$193,618	-3.15%	WOOF \| STN \| LKQX \| IHS \| PLCM \| more »	2009-12-31
Henderson Group Plc	1.47%	443,706	220,796	$5,856,919	$2,914,507	49.76%	BRK'A \| CSCO \| AAPL \| MSFT \| GOOG \| more »	2009-12-31
State Street Corporation	1.44%	435,029	23,544	$5,742,383	$310,781	5.41%	BRK'B \| XOM \| JNJ \| IBM \| MSFT \| more »	2009-12-31
The Bank of New York Mellon Corporation	1.37%	413,549	247,549	$5,458,847	$3,267,647	59.86%	XOM \| K \| MSFT \| BRK'B \| JNJ \| more »	2009-12-31
MANNING & NAPIER ADVISORS INC	1.33%	402,500	-39,000	$5,313,000	-$514,800	-9.69%	NOK \| UL \| ERTS \| CSCO \| DIS \| more »	2009-12-31
DWS Intermediate Tax/AMT Free A	1.33%	402,500	-39,000	$5,313,000	-$514,800	-9.69%	NOK \| UL \| ERTS \| CSCO \| DIS \| more »	2009-12-31
CLEARBRIDGE ADVISORS, LLC	1.30%	393,248	393,028	$5,190,874	$5,187,970	99.94%	BRK'B \| WFT \| BIIB \| JNJ \| APC \| more »	2009-12-31
CHINOOK CAPITAL MANAGEMENT	1.27%	384,072	113,401	$5,069,750	$1,496,893	29.53%	EHTH \| BA \| ARO \| PFWD \| EGOV \| more »	2009-12-31
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/	1.22%	369,031	95,522	$4,871,209	$1,260,890	25.88%	USB \| CVG \| CINF \| RDS'B \| KFT \| more »	2009-12-31
COPPER ROCK CAPITAL PARTNERS, LLC	1.19%	359,368	-113,897	$4,743,658	-$1,503,440	-31.69%	PLCM \| MXB \| TDG \| GMCR \| TRAK \| more »	2009-12-31
Northern Trust Corporation	1.08%	328,506	-5,377	$4,336,279	-$70,976	-1.64%	XOM \| MSFT \| PG \| JNJ \| IBM \| more »	2009-12-31
DIMENSIONAL FUND ADVISORS LP	0.97%	293,599	55,283	$3,875,507	$729,736	18.83%	JPM \| T \| BAC \| GE \| COP \| more »	2009-12-31
SPARTA ASSET MANAGEMENT, LLC	0.95%	288,477	288,477	$3,807,896	$3,807,896	100.00%	TSRA \| MMSI \| JJSF \| VIVO \| ASEI \| more »	2009-12-31
Wells Fargo	0.86%	259,904	-147,069	$3,430,733	-$1,941,311	-56.59%	BRK'B \| XOM \| MSFT \| AAPL \| IBM \| more »	2009-12-31
CONESTOGA CAPITAL ADVISORS, LLC	0.85%	256,595	57,026	$3,387,054	$752,743	22.22%	CSGP \| AVAV \| SMTS \| NVEC \| QSII \| more »	2009-12-31
Bank of America	0.81%	245,825	-9,565	$3,244,890	-$126,258	-3.89%	BRK'B \| XOM \| PM \| JPM \| IBM \| more »	2009-12-31
FRONTIER CAPITAL MANAGEMENT CO LLC	0.78%	235,278	-17,167	$3,105,670	-$226,604	-7.30%	PLL \| SWKS \| CHS \| RJF \| EQIX \| more »	2009-12-31
LLOYDS TSB BANK PLC	0.39%	118,850	118,850	$1,568,820	$1,568,820	100.00%	BRK'A \| XOM \| JNJ \| MSFT \| PFE \| more »	2009-12-31
TIAA CREF INVESTMENT MANAGEMENT LLC	0.39%	117,183	-8,137	$1,546,816	-$107,408	-6.94%	BRK'A \| XOM \| MSFT \| JNJ \| AAPL \| more »	2009-12-31
Goldman Sachs Group, Inc.	0.35%	105,099	19,988	$1,387,307	$263,842	19.02%	BRK'B \| MSFT \| JNJ \| XOM \| ORCL \| more »	2009-12-31
Principal Financial Group, Inc.	0.29%	88,480	1,425	$1,167,936	$18,810	1.61%	BRK'A \| XOM \| MSFT \| T \| PG \| more »	2009-12-31
BLACKROCK INVESTMENT MANAGEMENT, LLC	0.28%	86,004	-10,193	$1,135,253	-$134,548	-11.85%	XOM \| MSFT \| CVX \| T \| JPM \| more »	2009-12-31
STRS OHIO	0.27%	82,563	3,500	$1,089,832	$46,200	4.24%	XOM \| MSFT \| JNJ \| IBM \| PG \| more »	2009-12-31
SUFFOLK CAPITAL MANAGEMENT LLC	0.25%	75,000	5,000	$990,000	$66,000	6.67%	XOM \| PFE \| QCOM \| CVX \| IBM \| more »	2009-12-31
PUBLIC SECTOR PENSION INVESTMENT BOARD	0.24%	71,200	49,000	$939,840	$646,800	68.82%	BRK'A \| RY \| TD \| BNS \| ECA \| more »	2009-12-31
GEODE CAPITAL MANAGEMENT LLC	0.21%	64,746	5,603	$854,647	$73,960	8.65%	XOM \| MSFT \| JNJ \| PG \| T \| more »	2009-12-31
BLAIR WILLIAM & CO/IL	0.21%	64,030	15,600	$845,196	$205,920	24.36%	BRK'B \| TEVA \| FAST \| MSFT \| QCOM \| more »	2009-12-31
BlackRock, Inc.	0.19%	58,369	-87,909	$770,471	-$1,160,399	-150.61%	RY \| TD \| ABX \| ECA \| BNS \| more »	2009-12-31
NORTHERN TRUST CO OF CONNECTICUT	0.19%	56,660	-16,184	$747,912	-$213,629	-28.56%	JPM \| AAPL \| GOOG \| UNP \| MSFT \| more »	2009-12-31
MORGAN STANLEY INVESTMENT MGMT	0.18%	55,300	-904,458	$729,960	-$11,938,845	-1,635.55%	BRK'B \| PBR'A \| AMX \| SPG \| BBD \| more »	2009-12-31
PUTNAM INVESTMENT MANAGEMENT LLC	0.17%	51,340	-22,400	$677,688	-$295,680	-43.63%	BRK'A \| BRK'B \| PFE \| CVX \| STT \| more »	2009-12-31
MUTUAL OF AMERICA CAPITAL MANAGEMENT CORP	0.16%	47,927	-1,553	$632,636	-$20,500	-3.24%	BRK'A \| XOM \| MSFT \| JNJ \| PG \| more »	2009-12-31
AXA INVESTMENT MANAGERS	0.16%	47,839		$631,475			GS \| JPM \| T \| PFE \| MRK \| more »	2009-12-31
NEW YORK STATE COMMON RETIREMENT FUND	0.16%	47,200	10,900	$623,040	$143,880	23.09%	XOM \| MSFT \| JNJ \| T \| PG \| more »	2009-12-31
Prudential Financial, Inc.	0.15%	45,596	-450	$601,867	-$5,940	-0.99%	XOM \| MSFT \| T \| CVX \| JNJ \| more »	2009-12-31
NATIONWIDE FUND ADVISORS	0.14%	42,392	8,913	$559,574	$117,652	21.03%	BRK'B \| XOM \| JNJ \| MSFT \| JPM \| more »	2009-12-31
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	0.14%	42,265	-2,480	$557,898	-$32,736	-5.87%	BRK'A \| XOM \| MSFT \| CVX \| JNJ \| more »	2009-12-31
TEXAS PERMANENT SCHOOL FUND	0.13%	38,677	-46	$510,536	-$607	-0.12%	BRK'A \| XOM \| MSFT \| JNJ \| PG \| more »	2009-12-31
RHUMBLINE ADVISERS	0.12%	37,822	4,800	$499,250	$63,360	12.69%	XOM \| MSFT \| PG \| JNJ \| T \| more »	2009-12-31

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Note: Market value of investments calculated using close of business price as of 2009-12-31.

What do these items mean?