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COSTAR GROUP
COSTAR GROUP. Institutional holdings reported to the SEC.

Institutional Holders (2016Q1)
Portfolio Summary: 228 Institutional holders with a total value of $6,343,764,894.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BAMCO INC /NY/ 2,927,419 550,852,000 8.68%
2 WELLINGTON MANAGEMENT GROUP LLP 2,829,620 532,449,000 8.39%
3 JANUS HENDERSON INVESTORS US LLC 2,246,522 422,746,000 6.66%
4 VANGUARD GROUP INC 2,159,936 406,435,000 6.41%
5 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 1,573,688 296,121,000 4.67%
6 WELLS FARGO & COMPANY/MN 1,570,402 295,502,000 4.66%
7 Winslow Capital Management, LLC 1,377,639 259,231,000 4.09%
8 TimesSquare Capital Management, LLC 1,075,305 202,340,000 3.19%
9 PRICE T ROWE ASSOCIATES INC /MD/ 918,942 172,917,000 2.73%
10 JPMORGAN CHASE & CO 905,339 170,357,000 2.69%
11 FRANKLIN RESOURCES INC 842,140 158,466,000 2.50%
12 WADDELL & REED FINANCIAL INC 807,657 151,977,000 2.40%
13 BlackRock Institutional Trust Company, N.A. 793,878 149,384,000 2.35%
14 RIVERBRIDGE PARTNERS LLC 774,785 145,791,000 2.30%
15 Invesco Ltd. 718,264 135,155,000 2.13%
16 AMERICAN CENTURY COMPANIES INC 622,456 117,128,000 1.85%
17 ALLIANCEBERNSTEIN L.P. 621,633 116,973,000 1.84%
18 OppenheimerFunds, Inc. 462,027 86,940,000 1.37%
19 WESTFIELD CAPITAL MANAGEMENT CO LP 439,420 82,686,000 1.30%
20 Artisan Partners Limited Partnership 393,505 74,046,000 1.17%
21 FEDERATED HERMES, INC. 393,500 74,045,000 1.17%
22 STATE STREET CORP 387,396 72,901,000 1.15%
23 NORTHERN TRUST CORP 348,638 65,604,000 1.03%
24 RUSSELL FRANK CO/ 342,855 64,550,000 1.02%
25 BLAIR WILLIAM & CO/IL 339,377 63,861,000 1.01%
26 BANK OF AMERICA CORP /DE/ 312,678 58,837,000 0.93%
27 DARUMA CAPITAL MANAGEMENT LLC 301,006 56,640,000 0.89%
28 BlackRock Fund Advisors 292,071 54,959,000 0.87%
29 Granahan Investment Management, LLC 257,973 48,543,000 0.77%
30 Wildcat Capital Management, LLC 254,072 47,809,000 0.75%
31 NEXT CENTURY GROWTH INVESTORS LLC 245,236 46,146,000 0.73%
32 Stephens Investment Management Group LLC 241,959 45,529,000 0.72%
33 NORGES BANK 237,791 44,745,000 0.71%
34 CORNERSTONE CAPITAL MANAGEMENT LLC 225,743 42,478,000 0.67%
35 Nationwide Fund Advisors 211,375 39,774,000 0.63%
36 Calamos Advisors LLC 208,916 39,312,000 0.62%
37 GEODE CAPITAL MANAGEMENT, LLC 204,864 38,549,000 0.61%
38 AMERIPRISE FINANCIAL INC 195,920 36,866,000 0.58%
39 GOLDMAN SACHS GROUP INC 168,679 31,740,000 0.50%
40 Conestoga Capital Advisors, LLC 164,901 31,029,000 0.49%
41 KORNITZER CAPITAL MANAGEMENT INC /KS 156,319 29,415,000 0.46%
42 Bank of New York Mellon Corp 144,348 27,161,000 0.43%
43 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 140,918 26,517,000 0.42%
44 Neuberger Berman Group LLC 135,617 25,519,000 0.40%
45 NEW YORK STATE COMMON RETIREMENT FUND 134,963 25,396,000 0.40%
46 JANUS HENDERSON GROUP PLC 133,605 25,140,000 0.40%
47 ArrowMark Colorado Holdings LLC 127,747 24,038,000 0.38%
48 SEI INVESTMENTS CO 123,596 23,256,000 0.37%
49 AMUNDI ASSET MANAGEMENT US, INC. 110,652 20,821,000 0.33%
50 COLUMBIA WANGER ASSET MANAGEMENT LLC 102,332 19,256,000 0.30%
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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.