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Institutional Investment Manager
GAMCO INVESTORS, INC. ET AL
GAMCO INVESTORS, INC. ET AL (CIK: 0000807249) incorporated in Delaware, located at 191 Mason Street, Greenwich, CT. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q2)
Original 13F HR (0001140361-15-029860) filed in 2015.08.05
#
Name
Shares
Value ($)
%
Options
Notes
1 CLICKSOFTWARE TECHNOLOGIES LTD 454,000 5,707 0.03%
2 MAG SILVER CORP COM 136,346 4,692 0.03%
3 PEABODY ENERGY CORP 518,900 1,136 0.01%
4 3M CO 19,947 3,078 0.02%
5 A H BELO CORP 27,000 151 0.00%
6 A O SMITH 73,200 5,269 0.03%
7 AAR CORP COM 70,000 2,231 0.01%
8 ABB LTD 32,500 679 0.00%
9 ABBOTT LABS 61,032 2,995 0.02%
10 ABBVIE INC 46,562 3,129 0.02%
11 ACCO BRANDS CORPORATION COM 172,743 1,342 0.01%
12 ACUITY BRANDS INC 11,045 1,988 0.01%
13 ADOBE INC 46,530 3,769 0.02%
14 AEGION CORP 72,000 1,364 0.01%
15 AEROJET ROCKETDYNE HLDGS INC COM 5,217,109 107,525 0.58%
16 AES CORP 554,900 7,358 0.04%
17 AGILENT TECHNOLOGIES INC 166,700 6,431 0.03%
18 AGL Resources Inc 53,408 2,487 0.01%
19 AGNICO EAGLE MINES LTD 74,545 2,115 0.01%
20 AIR PRODS & CHEMS INC 4,275 585 0.00%
21 AKORN INCORPORATED 23,100 1,009 0.01%
22 ALAMOS GOLD INC 63,730 361 0.00%
23 ALBANY INTL CORP CL A 85,200 3,391 0.02%
24 ALBEMARLE CORP 54,600 3,018 0.02%
25 ALERE INC 218,400 11,521 0.06%
26 ALEXION PHARMACEUTIC 1,415 256 0.00%
27 ALIGN TECHNOLOGY INC 8,000 502 0.00%
28 ALLEGHANY CORP 3,295 1,545 0.01%
29 ALLERGAN PLC 37,286 11,315 0.06%
30 ALLETE INC COM NEW 8,050 373 0.00%
31 ALLIANCEBERNSTEIN HLDG L P 293,196 8,658 0.05%
32 ALLIANT ENERGY CORP 13,090 756 0.00%
33 ALTERA CORPORATION 745,000 38,144 0.21%
34 ALTEVA 22,600 162 0.00%
35 ALTRIA GROUP INC 4,750 232 0.00%
36 AMAZON COM INC 10,095 4,382 0.02%
37 AMC NETWORKS INC CL A 1,612,023 131,944 0.71%
38 AMERICA MOVIL SAB DE CV 78,000 1,662 0.01%
39 AMERICAN DG ENERGY INC 280,000 112 0.00%
40 AMERICAN ELEC PWR INC 12,350 654 0.00%
41 AMERICAN EXPRESS CO 3,006,348 233,653 1.27%
42 AMERICAN INTL GROUP INC 447,371 27,656 0.15%
43 AMERICAN RAILCAR INDS INC 5,000 243 0.00%
44 AMERICAN WTR WKS CO INC NEW 13,000 632 0.00%
45 AMERIPRISE FINANCIAL, INC. 127,000 3,357 0.02%
46 AMERIPRISE FINL INC 26,749 3,342 0.02%
47 AMETEK INC NEW 2,891,242 158,382 0.86%
48 AMGEN INC 40,575 6,229 0.03%
49 AMPCO-PITTSBURGH CORP 1,496,728 22,631 0.12%
50 ANADARKO PETE CORP 191,800 14,972 0.08%
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