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

Institutional Holders (2016Q4)
Portfolio Summary: 290 Institutional holders with a total value of $6,272,889,160.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BAMCO INC /NY/ 2,997,945 565,083,000 9.01%
2 JANUS HENDERSON INVESTORS US LLC 2,597,711 489,741,000 7.81%
3 VANGUARD GROUP INC 2,454,611 462,669,000 7.38%
4 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 1,611,403 303,733,000 4.84%
5 WELLINGTON MANAGEMENT GROUP LLP 1,355,532 255,504,000 4.07%
6 Winslow Capital Management, LLC 1,267,682 238,946,000 3.81%
7 PRICE T ROWE ASSOCIATES INC /MD/ 1,153,499 217,423,000 3.47%
8 WELLS FARGO & COMPANY/MN 1,077,712 203,136,000 3.24%
9 FRANKLIN RESOURCES INC 889,129 167,587,000 2.67%
10 BlackRock Institutional Trust Company, N.A. 879,874 165,847,000 2.64%
11 TimesSquare Capital Management, LLC 802,110 151,190,000 2.41%
12 WADDELL & REED FINANCIAL INC 716,490 135,051,000 2.15%
13 RIVERBRIDGE PARTNERS LLC 692,942 130,613,000 2.08%
14 Invesco Ltd. 683,397 128,814,000 2.05%
15 JPMORGAN CHASE & CO 669,043 126,107,000 2.01%
16 STATE STREET CORP 553,003 104,248,000 1.66%
17 ALLIANCEBERNSTEIN L.P. 513,212 96,735,000 1.54%
18 Bares Capital Management, Inc. 469,472 88,491,000 1.41%
19 FMR LLC 446,500 84,161,000 1.34%
20 DF DENT & CO INC 429,834 81,019,000 1.29%
21 FEDERATED HERMES, INC. 371,400 70,005,000 1.12%
22 BLAIR WILLIAM & CO/IL 351,839 66,318,000 1.06%
23 BlackRock Fund Advisors 332,674 62,706,000 1.00%
24 AMERICAN CENTURY COMPANIES INC 327,925 61,811,000 0.99%
25 WESTFIELD CAPITAL MANAGEMENT CO LP 323,036 60,889,000 0.97%
26 BANK OF AMERICA CORP /DE/ 290,877 54,828,000 0.87%
27 VOYA INVESTMENT MANAGEMENT LLC 284,036 53,538,000 0.85%
28 Stephens Investment Management Group LLC 271,184 51,115,000 0.81%
29 DARUMA CAPITAL MANAGEMENT LLC 270,663 51,017,000 0.81%
30 Artisan Partners Limited Partnership 238,366 44,930,000 0.72%
31 GEODE CAPITAL MANAGEMENT, LLC 235,856 44,441,000 0.71%
32 NORTHERN TRUST CORP 223,098 42,052,000 0.67%
33 Granahan Investment Management, LLC 218,643 41,212,000 0.66%
34 GOLDMAN SACHS GROUP INC 205,163 38,671,000 0.62%
35 Wildcat Capital Management, LLC 195,117 36,778,000 0.59%
36 Nationwide Fund Advisors 193,584 36,489,000 0.58%
37 AMERIPRISE FINANCIAL INC 190,171 35,844,000 0.57%
38 NEXT CENTURY GROWTH INVESTORS LLC 186,831 35,215,000 0.56%
39 ArrowMark Colorado Holdings LLC 184,087 34,699,000 0.55%
40 Bank of New York Mellon Corp 182,283 34,358,000 0.55%
41 BAILLIE GIFFORD & CO 179,716 33,874,000 0.54%
42 MACKENZIE FINANCIAL CORP 170,849 32,203,000 0.51%
43 RUSSELL INVESTMENTS GROUP, LTD. 159,329 29,934,000 0.48%
44 Neuberger Berman Group LLC 139,943 26,378,000 0.42%
45 JANUS HENDERSON GROUP PLC 137,494 25,916,000 0.41%
46 NORGES BANK 131,946 24,871,000 0.40%
47 COLUMBIA WANGER ASSET MANAGEMENT LLC 131,080 24,707,000 0.39%
48 Mitsubishi UFJ Trust & Banking Corp 130,489 24,596,000 0.39%
49 BlackRock Group LTD 117,427 22,133,000 0.35%
50 PAR CAPITAL MANAGEMENT INC 115,000 21,676,000 0.35%
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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.