13F-HR 1 d13fhr.txt FORM 13-F UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F Cover Page Report for the Calendar Year or Quarter Ended: December 31, 2004 Seneca Capital Advisors LLC Name of Institutional Investment Manager 950 Third Avenue, 29th Floor New York New York 10022 Business Address (Street) (City) (State) (Zip) 13F File Number: 28-03497 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information herein is true, correct and complete, and that it is understood that all required items, statements, schedules, and tables, are considered integral parts of this form. Name, Title and Telephone Number of Person Submitting Report: Gregg Grimmelbein CFO (212) 371-1300 (Name) (Title) (Phone) Signature, Place and Date of Signing: /s/ Gregg Grimmelbein ---------------------- Gregg Grimmelbein 950 Third Avenue, 29th Floor New York, New York 10022 2/14/2005 Report Type: [X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. FORM 13F SUMMARY PAGE Number of Other Included Managers: 1 List of Other Included Managers: Seneca Capital Investments, LLC Form 13F Information Table Entry Total: 236 Form 13F Information Table Value Total: 1,551,306,000 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON D.C. 20549 FORM 13F INFORMATION TABLE SENECA CAPITAL ADVISORS LLC FORM 13F INFORMATION TABLE AS OF DATE 12/31/04

Baker Michael Corp COM 057149106 288 14,700 SOLE 1 14,700 Bancorp Bk COM 05969F104 800 50,000 SOLE 50,000 Blockbuster Inc CL B 093679207 4,712 534,800 SOLE 534,800 Blockbuster Inc CL B 093679207 9,831 1,115,900 SOLE 1 1,115,900 Brasil Telecom Participacoes SPON ADR PFD 105530109 794 20,800 SOLE 20,800 Brasil Telecom Participacoes SPON ADR PFD 105530109 1,682 44,100 SOLE 1 44,100 Braskem S A SP ADR PFD A 105532105 1,865 36,600 SOLE 36,600 Braskem S A SP ADR PFD A 105532105 3,975 78,000 SOLE 1 78,000 Callisto Pharmaceuticals New COM 1312EM104 101 81,000 SOLE 81,000 Calpine Corp COM 131347106 2,964 752,400 CALL SOLE 752,400 Calpine Corp COM 131347106 6,345 1,610,400 CALL SOLE 1 1,610,400 Cameco Corp COM 13321L108 4,287 122,800 SOLE 122,800 Cameco Corp COM 13321L108 9,154 262,200 SOLE 1 262,200 Canadian Nat Res Ltd COM 136385101 3,092 72,300 SOLE 72,300 Canadian Nat Res Ltd COM 136385101 6,531 152,700 SOLE 1 152,700 Canwest Global Communication SHS NON VTG 138906300 4,817 400,300 SOLE 400,300 Canwest Global Communication SHS NON VTG 138906300 10,225 849,700 SOLE 1 849,700 Charter Communications Inc D CL A 16117M107 4,304 1,921,400 SOLE 1,921,400 Charter Communications Inc D CL A 16117M107 9,136 4,078,600 SOLE 1 4,078,600 Cheniere Energy Inc COM 16411R208 17,983 282,300 SOLE 282,300 Cheniere Energy Inc COM 16411R208 54,858 861,200 SOLE 1 861,200 Cheniere Energy Inc COM 16411R208 2,032 31,900 CALL SOLE 31,900 Cheniere Energy Inc COM 16411R208 4,338 68,100 CALL SOLE 1 68,100 Citigroup Inc COM 172967101 9,260 192,200 CALL SOLE 192,200 Citigroup Inc COM 172967101 19,648 407,800 CALL SOLE 1 407,800 Cleveland Cliffs Inc COM 185896107 2,306 22,200 SOLE 22,200 Cleveland Cliffs Inc COM 185896107 4,902 47,200 SOLE 1 47,200 Companhia Vale de Rio Doce SPONSORED ADR 204412209 3,255 112,200 SOLE 112,200 Companhia Vale de Rio Doce SPONSORED ADR 204412209 6,899 237,200 SOLE 1 237,200 Comstock Res Inc COM NEW 205768203 3,532 160,200 SOLE 160,200 Comstock Res Inc COM NEW 205768203 7,493 339,800 SOLE 1 339,800 DPL Inc COM 233923109 4,545 181,000 SOLE 181,000 DPL Inc COM 233923109 9,597 382,200 SOLE 1 382,200 Danielson Hldg Corp COM 236274106 2,899 343,100 SOLE 343,100 Danielson Hldg Corp COM 236274106 6,214 735,400 SOLE 1 735,400 Deutsche Telekom AG SPONSORED ADR 251566105 9,800 432,120 SOLE 432,120 Edison Intl COM 281020107 4,193 130,900 SOLE 130,900 Edison Intl COM 281020107 9,029 281,900 SOLE 1 281,900 El Paso Elec Co COM NEW 283677854 12,885 680,300 SOLE 680,300 El Paso Elec Co COM NEW 283677854 27,465 1,450,100 SOLE 1 1,450,100 Energy Partners Ltd COM 29270U105 1,299 64,100 SOLE 64,100 Energy Partners Ltd COM 29270U105 2,755 135,900 SOLE 1 135,900

Exelon Corp COM 30161N101 6,364 144,400 SOLE 144,400 Exelon Corp COM 30161N101 25,371 575,700 SOLE 1 575,700 Firstenergy Corp COM 337932107 6,650 168,300 SOLE 168,300 Firstenergy Corp COM 337932107 14,101 356,900 SOLE 1 356,900 Fluor Corp New COM 343412102 692 12,700 PUT SOLE 12,700 Fluor Corp New COM 343412102 1,472 27,000 PUT SOLE 1 27,000 Forest Oil Corp COM PAR $0.01 346091705 3,023 95,300 SOLE 95,300 Forest Oil Corp COM PAR $0.01 346091705 6,493 204,700 SOLE 1 204,700 Fox Entmt Group Inc CL A 35138T107 5,170 165,400 SOLE 165,400 Fox Entmt Group Inc CL A 35138T107 10,850 347,100 SOLE 1 347,100 Freescale Semiconductor Inc CL A 35687M107 12,964 727,500 SOLE 727,500 Freescale Semiconductor Inc CL A 35687M107 25,520 1,432,100 SOLE 1 1,432,100 Freescale Semiconductor Inc CLB B 35687M206 5,640 307,200 SOLE 307,200 Freescale Semiconductor Inc CLB B 35687M206 11,993 653,200 SOLE 1 653,200 Genworth Finl Inc COM CL A 37247D106 5,038 186,600 SOLE 186,600 Genworth Finl Inc COM CL A 37247D106 10,498 388,800 SOLE 1 38,800 Glowpoint Inc COM 379887102 128 102,667 SOLE 102,667 Glowpoint Inc COM 379887102 247 197,333 SOLE 1 197,333 Goldcorp Inc New COM 380956409 2,890 192,300 SOLE 192,300 Goldcorp Inc New COM 380956409 6,128 407,700 SOLE 1 407,700 Golden West Finl Corp Del COM 381317106 2,211 36,000 PUT SOLE 36,000 Golden West Finl Corp Del COM 381317106 4,791 78,000 PUT SOLE 1 78,000 Grey Global Group Inc COM 39787M108 5,683 5,166 SOLE 5,166 HSBC Hldgs PLC SPON ADR NEW 404280406 593 6,960 SOLE 6,960 Halliburton Co COM 406216101 7,118 181,400 SOLE 181,400 Halliburton Co COM 406216101 15,056 383,700 SOLE 1 383,700 Hawaiin Holdings Inc COM 419879101 1,912 279,900 SOLE 279,900 Hawaiin Holdings Inc COM 419879101 3,963 580,300 SOLE 1 580,300 Highland Hospitality Corp COM 430141101 4,441 395,100 SOLE 395,100 Highland Hospitality Corp COM 430141101 8,431 750,100 SOLE 1 750,100 Hospira Inc COM 441060100 11,953 356,800 SOLE 356,800 Hospira Inc COM 441060100 25,587 763,800 SOLE 1 763,800 Hospira Inc COM 441060100 1,343 40,100 CALL SOLE 40,100 Hospira Inc COM 441060100 2,894 86,400 CALL SOLE 1 86,400 Hudson Highland Group Inc COM 443792106 3,637 126,300 SOLE 126,300 Huntington Bancshares Inc COM 446150104 3,362 135,900 SOLE 135,900 Huntington Bancshares Inc COM 446150104 3,362 135,900 SOLE 1 135,900 Indus Intl Inc COM 45578L100 687 320,800 SOLE 320,800 Indus Intl Inc COM 45578L100 1,453 679,200 SOLE 1 679,200 Integrated Electrical Svc COM 45811E103 1,761 363,800 SOLE 363,800 Integrated Electrical Svc COM 45811E103 3,733 771,200 SOLE 1 771,200 JPMorgan & Chase & Co COM 46625H100 3,125 80,100 CALL SOLE 80,100

JPMorgan & Chase & Co COM 46625H100 6,628 169,900 CALL SOLE 1 169,900 Jamesons Inns Inc COM 470457102 1,624 824,400 SOLE 824,400 Jamesons Inns Inc COM 470457102 3,143 1,595,600 SOLE 1 1,595,600 KFX Inc COM 48245L107 1,851 127,500 SOLE 127,500 KFX Inc COM 48245L107 3,957 272,500 SOLE 1 272,500 Key Energy Svcs Inc COM 492914106 3,437 291,300 SOLE 291,300 Key Energy Svcs Inc COM 492914106 7,248 614,200 SOLE 1 614,200 Keycorp New COM 493267108 2,166 63,900 SOLE 63,900 Keycorp New COM 493267108 4,583 135,200 SOLE 1 135,200 Keycorp New COM 493267108 1,088 32,100 CALL SOLE 32,100 Keycorp New COM 493267108 2,302 67,900 CALL SOLE 1 67,900 Las Vegas Sands Corp COM 517834107 264 5,500 SOLE 1 5,500 Liberty Media Corp New COM SER A 530718105 1,760 160,300 SOLE 160,300 Liberty Media Corp New COM SER A 530718105 3,730 339,700 SOLE 1 339,700 Liberty Media Intl Inc COM SER A 530719103 8,978 194,198 SOLE 194,198 Liberty Media Intl Inc COM SER A 530719103 18,774 406,090 SOLE 1 406,090 Lucent Technologies Inc COM 549463107 3,008 800,000 SOLE 800,000 Lucent Technologies Inc COM 549463107 6,392 1,700,000 SOLE 1 1,700,000 Magellan Health Svcs Inc COM NEW 559079207 6,258 183,200 SOLE 183,200 Magellan Health Svcs Inc COM NEW 559079207 12,458 364,700 SOLE 1 364,700 Massey Energy Corp COM 576206106 6,910 197,700 SOLE 197,700 Massey Energy Corp COM 576206106 14,759 422,300 SOLE 1 422,300 Matrix Svc Co COM 576853105 572 71,000 SOLE 71,000 Matrix Svc Co COM 576853105 1,213 150,500 SOLE 1 150,500 Mc Data Corp CL B 580031102 2,013 357,600 SOLE 357,600 Mc Data Corp CL B 580031102 4,349 772,400 SOLE 1 772,400 Medtronic Inc COM 585055106 1,926 38,778 SOLE 38,778 Mobile Telesystems OJSC SPONSORED ADR 607409109 886 6,400 SOLE 6,400 Mobile Telesystems OJSC SPONSORED ADR 607409109 1,884 13,600 SOLE 1 13,600 Molex Inc CL A 608554200 2,785 104,500 SOLE 104,500 NGP Cap Res Co COM 62912R107 1,469 95,600 SOLE 95,600 NGP Cap Res Co COM 62912R107 3,142 204,400 SOLE 1 204,400 NRG Energy Inc COM NEW 629377508 15,765 437,300 SOLE 437,300 NRG Energy Inc COM NEW 629377508 33,022 916,000 SOLE 1 916,000 Nationshealth Inc COM 63860C100 342 49,600 SOLE 49,600 Nationshealth Inc COM 63860C100 598 86,600 SOLE 1 86,600

Nationshealth Inc *W EXP 08/24/200 63860C118 89 42,700 SOLE 42,700 Nationshealth Inc UNIT 08/24/200 63860C209 171 82,300 SOLE 1 82,300 Natural Resource Partners L COM UNIT LP 63900P103 4,612 80,000 SOLE 80,000 News Corp CL A 65248E104 10,384 556,500 SOLE 556,500 News Corp CL B 65248E203 2,868 149,400 SOLE 149,400 News Corp CL B 65248E203 6,186 322,200 SOLE 1 322,200 New Century Financial Corp M COM 6435EV108 17,038 266,600 SOLE 266,600 New Century Financial Corp M COM 64352D101 4,282 67,000 SOLE 1 67,000 Open JT STK Co-Vimpel Commun SPONSORED ADR 68370R109 1,735 48,000 SOLE 48,000 Open JT STK Co-Vimpel Commun SPONSORED ADR 68370R109 3,686 102,000 SOLE 1 102,000 PG&E Corp COM 69331C108 20,464 614,900 SOLE 614,900 PG&E Corp COM 69331C108 33,077 993,900 SOLE 1 993,900 PG&E Corp COM 69331C108 3,415 102,600 CALL SOLE 102,600 PG&E Corp COM 69331C108 3,258 97,900 CALL SOLE 1 97,900 Patina Oil & Gas Corp COM 703224105 2,404 64,100 SOLE 64,100 Patina Oil & Gas Corp COM 703224105 5,096 135,900 SOLE 1 135,900 Petroleo Brasileiro SA Petro SPONSORED ADR 71654V408 5,716 143,700 SOLE 143,700 Petroleo Brasileiro SA Petro SPONSORED ADR 71654V408 12,185 306,300 SOLE 1 306,300 Pfizer Inc COM 717081103 863 32,100 CALL SOLE 32,100 Pfizer Inc COM 717081103 1,826 67,900 CALL SOLE 1 67,900 Pharmacopeia Drug Discvry In COM 7171EP101 1,198 202,700 SOLE 202,700 Pharmacopeia Drug Discvry In COM 7171EP101 2,352 397,900 SOLE 1 397,900 Plains Expl& Prodtn Co COM 726505100 829 31,900 SOLE 31,900 Plains Expl& Prodtn Co COM 726505100 1,771 68,100 SOLE 1 68,100 Quanta Svcs Inc COM 74762E102 3,391 367,800 SOLE 367,800 Quanta Svcs Inc COM 74762E102 7,029 762,400 SOLE 1 762,400 Quilmes Indl Quinsa Societe SP ADR CL B 74838Y207 750 44,003 SOLE 44,003 Quilmes Indl Quinsa Societe SP ADR CL B 74838Y207 1,422 83,377 SOLE 1 83,377 Regional BK Holdrs TR DEPOSITRY RCPT 75902E100 1,363 9,600 SOLE 1 9,600 Reliant Energy Inc COM 75952B105 3,833 280,800 SOLE 280,800 Reliant Energy Inc COM 75952B105 8,220 602,200 SOLE 1 602,200 Revlon Inc CL A 761525500 791 343,800 SOLE 343,800 Revlon Inc CL A 761525500 1,659 721,200 SOLE 1 721,200 Rhodia SPONSORED ADR 762397107 65 24,000 SOLE 24,000 Rhodia SPONSORED ADR 762397107 138 51,000 SOLE 1 51,000 Sears Roebuck & Co COM 812387108 4,082 80,000 SOLE 80,000 Sears Roebuck & Co COM 812387108 8,675 170,000 SOLE 1 170,000 Seattle Genetics Inc COM 812578102 889 136,100 SOLE 136,100 Seattle Genetics Inc COM 812578102 1,723 263,900 SOLE 1 263,900 Shaw Group Inc COM 820280105 3,863 216,400 SOLE 216,400 Shaw Group Inc COM 820280105 8,186 458,600 SOLE 1 458,600 Southern Co COM 842587107 10,646 317,600 PUT SOLE 317,600 Southern Co COM 842587107 22,874 682,400 PUT SOLE 1 682,400 Southern Un Co New COM 844030106 6,661 277,780 SOLE 277,780

Southern Un Co New COM 844030106 13,242 552,220 SOLE 1 552,220 Sprint Corp COM FON 852061100 9,540 383,900 SOLE 383,900 Sprint Corp COM FON 852061100 20,280 816,100 SOLE 1 816,100 Sprint Corp COM FON 852061100 798 32,100 CALL SOLE 32,100 Sprint Corp COM FON 852061100 1,687 67,900 CALL SOLE 1 67,900 Syntroleum Corp COM 871630109 802 99,900 SOLE 99,900 Syntroleum Corp COM 871630109 1,702 211,900 SOLE 1 211,900 TLC Vision Corp COM 872549100 5,291 507,800 SOLE 507,800 TLC Vision Corp COM 872549100 11,252 1,079,800 SOLE 1 1,079,800 TXU Corp COM 873168108 5,204 80,600 SOLE 80,600 TXU Corp COM 873168108 2,201 34,100 SOLE 1 34,100 Telecominucacoes Brasileiras SPONSORED ADR 879287308 515 16,000 SOLE 16,000 Telecominucacoes Brasileiras SPONSORED ADR 879287308 1,094 34,000 SOLE 1 34,000 Tempur Pedic Intl Inc COM 88023U101 5,667 267,300 SOLE 267,300 Tempur Pedic Intl Inc COM 88023U101 11,946 563,500 SOLE 1 563,500 Teva Pharmaceutical Inds Ltd COM 881624209 2,090 70,000 CALL SOLE 70,000 Teva Pharmaceutical Inds Ltd COM 881624209 4,461 149,400 CALL SOLE 1 149,400 Transaction Sys Architects CL A 893416107 4,667 235,100 SOLE 235,100 Transaction Sys Architects CL A 893416107 9,887 498,100 SOLE 1 498,100 TransAlta Corp COM 89346D107 3,070 204,400 SOLE 204,400 TransAlta Corp COM 89346D107 6,555 436,400 SOLE 1 436,400 TV Azteca S A DE C V SPONSORED ADR 901145102 7,748 753,700 SOLE 753,700 U S I Hldgs COM 90333H101 2,893 250,000 SOLE 250,000 USA Mobility Inc COM 90341G103 7,028 199,031 SOLE 199,031 USA Mobility Inc COM 90341G103 14,155 400,868 SOLE 1 400,868 Unisource Energy Corp COM 909205106 1,545 64,100 SOLE 64,100 Unisource Energy Corp COM 909205106 3,277 135,900 SOLE 1 135,900 United States Stl Corp New COM 912909108 3,541 69,100 SOLE 69,100 United States Stl Corp New COM 912909108 7,493 146,200 SOLE 1 146,200 United States Stl Corp New COM 912909108 6,565 128,100 CALL SOLE 128,100 United States Stl Corp New COM 912909108 13,935 271,900 CALL SOLE 1 271,900 Unitedglobalcom CL A 913247508 2,788 288,600 SOLE 288,600 Unitedglobalcom CL A 913247508 5,906 611,400 SOLE 1 611,400 Unocal Corp COM 915289102 5,474 126,600 CALL SOLE 126,600 Unocal Corp COM 915289102 11,822 273,400 CALL SOLE 1 273,400 Veritas Software Co COM 923436109 2,187 76,589 SOLE 76,589 Veritas Software Co COM 923436109 5,033 176,300 CALL SOLE 176,300 Veritas Software Co COM 923436109 10,669 373,700 CALL SOLE 1 373,700 Vodafone Group PLC New SPONSORED ADR 92857W100 9,816 358,500 SOLE 358,500 WPP Group PLC SPON ADR NEW 929309300 1,760 32,200 SOLE 1 32,200 Walter Inds Inc COM 93317Q105 1,616 47,900 SOLE 47,900 Walter Inds Inc COM 93317Q105 3,498 103,700 SOLE 1 103,700

Washington Group Intl Inc COM NEW 938862208 6,497 157,500 SOLE 157,500 Washington Group Intl Inc COM NEW 938862208 12,383 300,200 SOLE 1 300,200 Williams Cos Inc Del COM 969457100 15,388 944,600 SOLE 944,600 Williams Cos Inc Del COM 969457100 31,853 1,955,400 SOLE 1 1,955,400

SENECA CAPITAL ADVISORS LLC 13F-HR