13F-HR/A 1 d13fhra.txt AMENDMENT NO. 1 TO 13F UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F HR/A FORM 13F Cover Page Report for the Calendar Year or Quarter Ended: March 31, 2006 If amended report check here: [X] Amendment Number: 1 This Amendment (check only one): [X] is a restatement [ ] adds new holding entries 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: Douglas Hirsch Managing Member 212-888-2999 ---------------------------------------------------------------------- (Name) (Title) (Phone) Signature, Place and Date of Signing: /s/ Douglas Hirsch 950 Third Avenue, 29th Floor New York, New York 10022 5/16/2006 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 LP Form 13F Information Table Entry Total: 237 Form 13F Information Table Value Total: 2,449,533 (thousands) 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 03/31/06

SENECA CAPITAL ADVISORS LLC 13F-HR/A