Dark
Light
System
Institutional Investment Manager
BAMCO INC /NY/
BAMCO INC /NY/ (CIK: 0001017918) incorporated in New York, located at 767 Fifth Avenue, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q3)
Portfolio Summary: 342 holdings with a total value of $22,146,595,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 GARTNER INC 8,463,327 710,327,000 3.21%
2 ARCH CAPITAL GROUP LTD SHS 8,965,259 658,678,000 2.97%
3 FACTSET RESH SYS INC 3,601,023 575,479,000 2.60%
4 VAIL RESORTS INC 5,368,967 562,023,000 2.54%
5 IDEXX LAB 7,061,667 524,329,000 2.37%
6 UNDER ARMOUR INC 5,324,340 515,290,000 2.33%
7 COSTAR GROUP 2,894,743 500,964,000 2.26%
8 ITC HOLDINGS ORD 13,592,214 453,164,000 2.05%
9 MIDDLEBY CORP 4,112,804 432,626,000 1.95%
10 DICKS SPORTING GOODS 7,726,232 383,298,000 1.73%
11 METTLER-TOLEDO 1,250,031 355,934,000 1.61%
12 BRIGHT HORIZONS FAM SOL IN DEL COM 5,481,738 352,147,000 1.59%
13 SS&C TECHNOLOGIES HLDGS INC 4,904,094 343,483,000 1.55%
14 HYATT HOTELS CORP COM CL A 6,908,787 325,404,000 1.47%
15 TESLA INC 1,274,558 316,600,000 1.43%
16 ANSYS 3,302,005 291,039,000 1.31%
17 VERISK ANALYTICS INC 3,844,332 284,135,000 1.28%
18 SBA COMMUNICATIONS CORPORATION 2,705,579 283,382,000 1.28%
19 GAMING & LEISURE PPTYS INC 9,274,194 275,444,000 1.24%
20 GUIDEWIRE SOFTWARE INC 5,225,759 274,770,000 1.24%
21 MANCHESTER UTD PLC NEW ORD CL A 15,948,688 273,839,000 1.24%
22 SCHWAB CHARLES CORP 9,214,454 263,165,000 1.19%
23 ILLUMINA INC 1,458,569 256,446,000 1.16%
24 CHOICE HOTELS INTL NEW 5,199,056 247,735,000 1.12%
25 CARMAX 3,864,272 229,229,000 1.04%
26 EQUINIX 834,747 228,220,000 1.03%
27 MAXIMUS INC 3,798,735 226,253,000 1.02%
28 UNITED NATURAL FOODSINC 4,493,123 217,961,000 0.98%
29 FLEETCOR TECH 1,444,379 198,775,000 0.90%
30 DOUGLAS EMMETT INC COM 6,302,753 181,015,000 0.82%
31 TRANSDIGM GROUP INC COM 850,000 180,548,000 0.82%
32 CBRE GROUP INC 5,541,859 177,339,000 0.80%
33 GENESEE AND WYOMING INC INC CL A 2,952,562 174,437,000 0.79%
34 AIR LEASE CORP 5,540,801 171,322,000 0.77%
35 COMMUNITY HEALTH SYS INC NEW COM 3,997,990 170,994,000 0.77%
36 MOBILEYE N V AMSTELVEEN 3,639,958 165,545,000 0.75%
37 INOVALON HLDGS INC COM CL A 7,914,345 164,856,000 0.74%
38 PRIMERICA INC 3,592,842 161,929,000 0.73%
39 FINANCIAL ENGINES INC 5,429,997 160,022,000 0.72%
40 MASONITE INTL CORP NEW COM 2,618,186 158,610,000 0.72%
41 TREEHOUSE FOODS INC 2,030,770 157,974,000 0.71%
42 CHURCH & DWIGHT 1,867,515 156,685,000 0.71%
43 MSCI INC 2,549,717 151,606,000 0.68%
44 ACUITY BRANDS INC 825,000 144,853,000 0.65%
45 Pinnacle Entertainment 4,185,508 141,638,000 0.64%
46 WEST PHARMACEUTICAL SVSC INC 2,480,237 134,230,000 0.61%
47 FASTENAL CO 3,631,125 132,935,000 0.60%
48 NORWEGIAN CRUISE LINE HLDG LTD SHS 2,272,592 130,220,000 0.59%
49 Ultimate Software Group Inc 727,391 130,210,000 0.59%
50 MARRIOTT VACATIONS WORLDWIDE C COM 1,908,335 130,034,000 0.59%
Page 1 of 7

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-15-041659, filed 2015.11.16).

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.