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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 (2015Q1)
Portfolio Summary: 841 holdings with a total value of $19,059,238,000.
#
Name
Shares
Value ($)
%
Options
Notes
801 TELUS CORP 6,026 200,000 0.00%
802 Medassets Inc 10,500 198,000 0.00%
803 BIOLASE INC 91,455 185,000 0.00%
804 EMMIS COMMUNICTNS CORP CL A 90,000 179,000 0.00%
805 MAG SILVER CORP 28,700 177,000 0.00%
806 MARTHA STEWART LIVING OMNIME 27,000 176,000 0.00%
807 SIRIUS XM HOLDINGS INC 45,000 172,000 0.00%
808 GAS NAT INC 16,000 159,000 0.00%
809 OPKO HEALTH INC 11,000 156,000 0.00%
810 CAPITOL FED FINL INC 12,500 156,000 0.00%
811 JASON INDS INC 21,700 154,000 0.00%
812 CECO ENVIRONMENTAL CORP 14,000 149,000 0.00%
813 DOVER DOWNS GAMING & ENTMT I 126,385 148,000 0.00%
814 FREQUENCY ELECTRS INC 10,000 140,000 0.00%
815 API TECHNOLOGIES CORP 65,533 136,000 0.00%
816 AMERICAN DG ENERGY INC 280,000 134,000 0.00%
817 PAIN THERAPEUTICS INC 70,000 132,000 0.00%
818 COVISINT CORP 60,939 124,000 0.00%
819 DIGI INTL INC COM 10,840 108,000 0.00%
820 Key Energy Services, Inc. 57,600 105,000 0.00%
821 CADIZ INC COM USD0.01 10,000 103,000 0.00%
822 * LEXICON PHARMACEUTICALS INC COM 105,200 99,000 0.00%
823 KINROSS GOLD CORP 40,000 90,000 0.00%
824 PC-TEL INC 10,400 83,000 0.00%
825 PRGX GLOBAL INC 20,100 81,000 0.00%
826 CLEAN ENERGY FUELS CORPORATION COM 15,000 80,000 0.00%
827 CLIFFS NAT RES INC 16,400 79,000 0.00%
828 INFUSYSTEM HLDGS INC 28,980 79,000 0.00%
829 INNERWORKINGS INC 10,000 67,000 0.00%
830 LIBERATOR MEDICAL HLDGS INC 18,000 63,000 0.00%
831 Portugal Telecom Sgps S A Spon 98,300 52,000 0.00%
832 PetroQuest Energy 22,000 51,000 0.00%
833 SANOFI 74,431 50,000 0.00%
834 MITEK SYS INC 15,600 49,000 0.00%
835 SFX ENTMT INC 11,000 45,000 0.00%
836 TEJON RANCH CO WT EXP 083116 43,669 35,000 0.00%
837 GSE SYS INC 15,803 24,000 0.00%
838 Neo Performance Materials 40,300 16,000 0.00%
839 LGL GROUP INC WTS EXP 08/06/18 930,280 9,000 0.00%
840 Corinthian Colleges, Inc. 200,500 3,000 0.00%
841 COMMUNITY HEALTH SYS INC NEW 26,800 1,000 0.00%
Page 17 of 17

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-15-017192, filed 2015.05.01).

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.