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Corp Executive Board Co
Corp Executive Board Co. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 197 Institutional holders with a total value of $2,396,054,976.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 TimesSquare Capital Management, LLC 2,262,725 164,115,000 6.85%
2 VANGUARD GROUP INC 2,121,218 153,852,000 6.42%
3 BlackRock Fund Advisors 1,557,984 113,001,000 4.72%
4 KORNITZER CAPITAL MANAGEMENT INC /KS 1,536,904 111,472,000 4.65%
5 FMR LLC 1,447,937 105,019,000 4.38%
6 JANUS HENDERSON INVESTORS US LLC 1,260,505 91,424,000 3.82%
7 Bank of New York Mellon Corp 1,159,135 84,074,000 3.51%
8 STATE STREET CORP 1,133,147 82,193,000 3.43%
9 MORGAN STANLEY 1,127,201 81,755,000 3.41%
10 BlackRock Institutional Trust Company, N.A. 941,376 68,278,000 2.85%
11 ArrowMark Colorado Holdings LLC 915,578 66,407,000 2.77%
12 Burgundy Asset Management Ltd. 905,403 65,669,000 2.74%
13 DISCIPLINED GROWTH INVESTORS INC /MN 863,573 62,635,000 2.61%
14 BLAIR WILLIAM & CO/IL 835,856 60,624,000 2.53%
15 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 790,366 57,325,000 2.39%
16 GW&K Investment Management, LLC 745,792 54,092,000 2.26%
17 JENNISON ASSOCIATES LLC 725,734 52,637,000 2.20%
18 Van Berkom & Associates Inc. 609,012 44,172,000 1.84%
19 NORTHERN TRUST CORP 600,489 43,552,000 1.82%
20 DIMENSIONAL FUND ADVISORS LP 558,467 40,506,000 1.69%
21 BROWN ADVISORY INC 531,195 38,528,000 1.61%
22 WASATCH ADVISORS LP 529,909 38,434,000 1.60%
23 Stephens Investment Management Group LLC 481,304 34,909,000 1.46%
24 PRICE T ROWE ASSOCIATES INC /MD/ 458,575 33,260,000 1.39%
25 WESTFIELD CAPITAL MANAGEMENT CO LP 458,523 33,257,000 1.39%
26 KALMAR INVESTMENTS INC /DE/ 358,718 26,018,000 1.09%
27 ROYCE & ASSOCIATES LP 331,600 24,051,000 1.00%
28 NORGES BANK 326,860 23,707,000 0.99%
29 TAMRO Capital Partners LLC 312,498 22,665,000 0.95%
30 VOYA INVESTMENT MANAGEMENT LLC 292,881 21,242,000 0.89%
31 SCHWERIN BOYLE CAPITAL MANAGEMENT INC 285,750 20,725,000 0.86%
32 STIFEL FINANCIAL CORP 195,711 20,242,000 0.84%
33 WELLS FARGO & COMPANY/MN 274,194 19,887,000 0.83%
34 ATLANTA CAPITAL MANAGEMENT CO L L C 264,940 19,216,000 0.80%
35 LOOMIS SAYLES & CO L P 262,829 19,063,000 0.80%
36 RENAISSANCE TECHNOLOGIES LLC 257,393 18,669,000 0.78%
37 AMERIPRISE FINANCIAL INC 235,966 17,115,000 0.71%
38 PRINCIPAL FINANCIAL GROUP INC 225,684 16,369,000 0.68%
39 CHARTWELL INVESTMENT PARTNERS, LLC 189,390 13,736,000 0.57%
40 GEODE CAPITAL MANAGEMENT, LLC 179,796 13,040,000 0.54%
41 BlackRock Investment Management, LLC 171,955 12,472,000 0.52%
42 TIAA CREF INVESTMENT MANAGEMENT LLC 169,555 12,298,000 0.51%
43 PANAGORA ASSET MANAGEMENT INC 145,402 10,546,000 0.44%
44 MILLENNIUM MANAGEMENT LLC 144,649 10,491,000 0.44%
45 Elk Creek Partners, LLC 139,040 10,085,000 0.42%
46 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 134,564 9,760,000 0.41%
47 Invesco Ltd. 130,983 9,501,000 0.40%
48 RICE HALL JAMES & ASSOCIATES, LLC 127,686 9,261,000 0.39%
49 GUGGENHEIM CAPITAL LLC 119,342 8,656,000 0.36%
50 RUSSELL FRANK CO/ 107,196 7,792,000 0.33%
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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.