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COMSCORE INC
COMSCORE INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 177 Institutional holders with a total value of $1,666,465,870.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRIMECAP MANAGEMENT CO/CA/ 4,135,532 211,739,000 12.71%
2 VANGUARD GROUP INC 2,387,193 122,224,000 7.33%
3 BlackRock Fund Advisors 2,015,990 103,219,000 6.19%
4 LORD, ABBETT & CO. LLC 1,526,115 78,137,000 4.69%
5 Clearbridge Investments, LLC 1,286,893 65,889,000 3.95%
6 COLUMBUS CIRCLE INVESTORS 1,284,955 65,790,000 3.95%
7 TimesSquare Capital Management, LLC 1,150,650 58,913,000 3.54%
8 BlackRock Institutional Trust Company, N.A. 952,325 48,759,000 2.93%
9 RS INVESTMENT MANAGEMENT CO LLC 808,521 41,396,000 2.48%
10 Pivot Point Capital Partners, LLC 782,867 40,083,000 2.41%
11 NORGES BANK 656,298 33,602,000 2.02%
12 STATE STREET CORP 655,042 33,542,000 2.01%
13 Century Capital Management, LLC 604,601 30,956,000 1.86%
14 NORTHERN TRUST CORP 592,483 30,335,000 1.82%
15 LOOMIS SAYLES & CO L P 506,547 25,935,000 1.56%
16 Bank of New York Mellon Corp 502,866 25,747,000 1.55%
17 BAMCO INC /NY/ 500,000 25,600,000 1.54%
18 KORNITZER CAPITAL MANAGEMENT INC /KS 497,964 25,496,000 1.53%
19 RENAISSANCE TECHNOLOGIES LLC 480,000 24,576,000 1.47%
20 HHR Asset Management, LLC 474,490 24,294,000 1.46%
21 WELLINGTON MANAGEMENT GROUP LLP 468,980 24,012,000 1.44%
22 Hood River Capital Management LLC 392,567 20,099,000 1.21%
23 AMERIPRISE FINANCIAL INC 358,346 18,349,000 1.10%
24 CADIAN CAPITAL MANAGEMENT, LP 349,775 17,908,000 1.07%
25 CASTLEARK MANAGEMENT LLC 331,711 16,984,000 1.02%
26 BLACKROCK ADVISORS LLC 322,088 16,491,000 0.99%
27 TIAA CREF INVESTMENT MANAGEMENT LLC 310,059 15,875,000 0.95%
28 ZWJ INVESTMENT COUNSEL INC 302,339 15,479,000 0.93%
29 PRICE T ROWE ASSOCIATES INC /MD/ 252,200 12,913,000 0.77%
30 MILLENNIUM MANAGEMENT LLC 252,056 12,905,000 0.77%
31 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 221,314 11,331,000 0.68%
32 PRINCIPAL FINANCIAL GROUP INC 217,427 11,132,000 0.67%
33 Cupps Capital Management, LLC 217,210 11,121,000 0.67%
34 TEACHERS ADVISORS, LLC 215,189 11,018,000 0.66%
35 GEODE CAPITAL MANAGEMENT, LLC 211,594 10,833,000 0.65%
36 Pier Capital, LLC 211,177 10,812,000 0.65%
37 Nichols Asset Management LLC 207,873 10,643,000 0.64%
38 FMR LLC 204,991 10,496,000 0.63%
39 DISCIPLINED GROWTH INVESTORS INC /MN 191,050 9,782,000 0.59%
40 FULLER & THALER ASSET MANAGEMENT, INC. 187,925 9,622,000 0.58%
41 D. E. Shaw & Co., Inc. 158,762 8,129,000 0.49%
42 DIMENSIONAL FUND ADVISORS LP 153,453 7,857,000 0.47%
43 Invesco Ltd. 140,045 7,170,000 0.43%
44 J. Goldman & Co LP 135,500 6,938,000 0.42%
45 AMUNDI ASSET MANAGEMENT US, INC. 133,509 6,836,000 0.41%
46 RUSSELL FRANK CO/ 129,229 6,616,000 0.40%
47 DEUTSCHE BANK AG\ 129,119 6,608,000 0.40%
48 BLAIR WILLIAM & CO/IL 127,623 6,534,000 0.39%
49 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 127,587 6,533,000 0.39%
50 DRIEHAUS CAPITAL MANAGEMENT LLC 125,049 6,403,000 0.38%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.