UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: Decembver 31, 2003 Check here if Amendment [ ]; Amendment Number: This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Labranche & Co. Inc. Address: One Exchange Plaza New York, NY 13F File Number: 28-10499 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 contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Harvey S. Traison Title: Senior Vice President and Chief Financial Officer Phone: 212-482-8950 Signature, Place, and Date of Signing: /s/ Harvey S. Traison New York, NY January 26, 2004 Report Type (Check only one.): [ X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 2 Form13F Information Table Entry Total: 174 Form13F Information Table Value Total: $256,179 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional managers with respect to which this report is filed, other than the manager filing this report. No. 13F File Number Name 01 28-10500 Labranche & Co., LLC 02 28-10501 Labranche Structured Products, LLC FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- 1838 BD-DEB TRADING FD COM 282520105 2452 129738 SH DEFINED 01 0 129738 0 3M CO COM 88579Y101 3840 45166 SH DEFINED 01 0 45166 0 ABBOTT LABS COM 002824100 2632 56488 SH DEFINED 02 0 56488 0 ADVANCED FIBRE COMMUNICATION COM 00754A105 1387 68831 SH DEFINED 02 0 68831 0 AEROPOSTALE COM 007865108 661 24113 SH DEFINED 02 0 24113 0 AGILENT TECHNOLOGIES INC COM 00846U101 800 27367 SH DEFINED 01 0 27367 0 ALLEGHENY ENERGY INC COM 017361106 383 30006 SH DEFINED 02 0 30006 0 AMERADA HESS CORP COM 023551104 614 11541 SH DEFINED 02 0 11541 0 ANADARKO PETE CORP COM 032511107 1994 39100 SH DEFINED 02 0 39100 0 APACHE CORP COM 037411105 4009 49428 SH DEFINED 02 0 49428 0 ARCHER DANIELS MIDLAND CO COM 039483102 242 15914 SH DEFINED 01 0 15914 0 ASTORIA FINL CORP COM 046265104 1310 35206 SH DEFINED 02 0 35206 0 AT&T WIRELESS SVCS INC COM 00209A106 806 100921 SH DEFINED 01 0 100921 0 ATHEROGENICS INC COM 047439104 285 19172 SH DEFINED 02 0 19172 0 AU OPTRONICS CORP SPONSORED ADR 002255107 589 49400 SH DEFINED 02 0 49400 0 AUTOLIV INC COM 052800109 693 18414 SH DEFINED 01 0 18414 0 BERKSHIRE INCOME REALTY INC PREFERRED STOCK 084690205 402 15352 SH DEFINED 01 0 15352 0 BIOTECH HOLDERS TR DEPOSTRY RCPTS 09067D201 2950 21800 SH DEFINED 02 0 21800 0 BIOVAIL CORP COM 09067J109 3110 144720 SH DEFINED 02 0 144720 0 BOULDER TOTAL RETURN FD INC COM 101541100 590 38743 SH DEFINED 01 0 38743 0 BP PLC SPONSORED ADR 055622104 4751 96276 SH DEFINED 02 0 96276 0 CALPINE CORP COM 131347106 538 111899 SH DEFINED 02 0 111899 0 CAMPBELL SOUP CO COM 134429109 1197 44651 SH DEFINED 02 0 44651 0 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309362 SH DEFINED 02 0 309362 0 COMVERSE TECHNOLOGY INC COM PAR $0.10 205862402 1372 78024 SH DEFINED 02 0 78024 0 CONTINENTAL AIRLS INC CL B 210795308 288 17682 SH DEFINED 01 0 17682 0 CORN PRODS INTL INC COM 219023108 611 17750 SH DEFINED 01 0 17750 0 COTT CORP QUE COM 22163N106 513 18300 SH DEFINED 02 0 18300 0 CROWN HOLDINGS INC COM 228368106 211 23279 SH DEFINED 02 0 23279 0 CURAGEN CORP COM 23126R101 201 27393 SH DEFINED 02 0 27393 0 CURATIVE HEALTH SRVCS INC COM 23126W100 206 14951 SH DEFINED 02 0 14951 0 DEAN FOODS CO NEW COM 242370104 649 19747 SH DEFINED 01 0 19747 0 EAGLE BROADBAND INC COM 269437109 256 197284 SH DEFINED 01 0 197284 0 ELECTRONICS FOR IMAGING INC COM 286082102 556 21351 SH DEFINED 02 0 21351 0 ENSCO INTL INC COM 26874Q100 593 21814 SH DEFINED 02 0 21814 0 ENZO BIOCHEM INC COM 294100102 1495 83481 SH DEFINED 02 0 83481 0 EQUITY OFFICE PROPERTIES TRU COM 294741103 398 13877 SH DEFINED 02 0 13877 0 ESS TECHNOLOGY INC COM 269151106 2534 148783 SH DEFINED 02 0 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464286848 11266 1168665 SH DEFINED 02 0 1168665 0 ISHARES INC MSCI FRANCE 464286707 3293 162000 SH DEFINED 02 0 162000 0 ISHARES TR DJ US BAS MATL 464287838 761 16700 SH DEFINED 02 0 16700 0 ISHARES TR TRANSP AVE IDX 464287192 16146 300000 SH DEFINED 02 0 300000 0 ISHARES TR DJ US TOTL MKT 464287846 4428 84000 SH DEFINED 02 0 84000 0 ISHARES TR S&P SMLCAP 600 464287804 6144 45850 SH DEFINED 02 0 45850 0 ISHARES TR DJ US TECH SEC 464287721 2071 42700 SH DEFINED 02 0 42700 0 ISHARES TR RUSSELL 3000 464287689 1158 18400 SH DEFINED 02 0 18400 0 ISHARES TR RUSL 3000 GROW 464287671 438 11600 SH DEFINED 02 0 11600 0 ISHARES TR RUSL 2000 GROW 464287648 1873 31600 SH DEFINED 02 0 31600 0 ISHARES TR RUSL 2000 VALU 464287630 3128 19500 SH DEFINED 02 0 19500 0 ISHARES TR GS NAT RES IDX 464287374 1260 11800 SH DEFINED 02 0 11800 0 ISHARES TR S&P EURO PLUS 464287861 5427 84600 SH DEFINED 02 0 84600 0 ISHARES TR S&P 500 INDEX 464287200 9798 88100 SH DEFINED 02 0 88100 0 ISHARES TR RUSSELL1000GRW 464287614 1863 39800 SH DEFINED 02 0 39800 0 ISHARES TR S&P GBL ENER 464287341 983 16700 SH DEFINED 02 0 16700 0 ISHARES TR MSCI EAFE IDX 464287465 7020 51322 SH DEFINED 02 0 51322 0 ISHARES TR GLMN SCHS SOFT 464287515 596 15792 SH DEFINED 02 0 15792 0 ISHARES TR GLDM SACHS TEC 464287549 1105 24100 SH DEFINED 02 0 24100 0 ISHARES TR NASDQ BIO INDX 464287556 813 11300 SH DEFINED 02 0 11300 0 ISHARES TR RUSSELL1000VAL 464287598 1039 17800 SH DEFINED 02 0 17800 0 ISHARES TR S&P MIDCP GROW 464287606 3962 33375 SH DEFINED 02 0 33375 0 JDS UNIPHASE CORP COM 46612J101 2563 704125 SH DEFINED 02 0 704125 0 JO-ANN STORES INC COM 47758P307 225 11005 SH DEFINED 01 0 11005 0 JONES LANG LASALLE INC COM 48020Q107 218 10512 SH DEFINED 01 0 10512 0 KEY ENERGY SVCS INC COM 492914106 358 34720 SH DEFINED 02 0 34720 0 KONINKLIJKE AHOLD N V SPON ADR NEW 500467303 271 34900 SH DEFINED 02 0 34900 0 KOOKMIN BK NEW SPONSORED ADR 50049M109 662 17500 SH DEFINED 02 0 17500 0 KOREA ELECTRIC PWR SPONSORED ADR 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SIMON PPTY GROUP INC NEW COM 828806109 1045 22559 SH DEFINED 01 0 22559 0 SK TELECOM LTD SPONSORED ADR 78440P108 356 19100 SH DEFINED 02 0 19100 0 SPINNAKER EXPL CO COM 84855W109 908 28147 SH DEFINED 02 0 28147 0 SUNTRUST BKS INC COM 867914103 1009 14107 SH DEFINED 01 0 14107 0 SURMODICS INC COM 868873100 568 23911 SH DEFINED 02 0 23911 0 TAG-IT PAC INC COM 873774103 366 81548 SH DEFINED 01 0 81548 0 TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADR 874039100 852 83200 SH DEFINED 02 0 83200 0 TELE NORTE LESTE PART S A SPON ADR PFD 879246106 204 13236 SH DEFINED 02 0 13236 0 TEXAS INSTRS INC COM 882508104 621 21142 SH DEFINED 02 0 21142 0 THOMAS & BETTS CORP COM 884315102 380 16590 SH DEFINED 01 0 16590 0 TIME WARNER INC COM 887317105 296 16470 SH DEFINED 02 0 16470 0 TRACTOR SUPPLY CO COM 892356106 1163 29824 SH DEFINED 02 0 29824 0 TRIMBLE NAVIGATION LTD COM 896239100 584 15678 SH DEFINED 02 0 15678 0 TV AZTECA S A DE C V SPONSORED ADR 901145102 599 65865 SH DEFINED 01 0 65865 0 UCBH 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