UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2006 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: Central Securities Corporation Address: 630 Fifth Avenue New York, New York 10111 13F File Number: 28-6578 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: Marlene A. Krumholz Title: Secretary Phone: 212-698-2020 Signature, Place, and Date of Signing: /s/ Marlene A. Krumholz New York, New York May 5, 2006 Report Type (Check only one.): [X] 13F HOLDINGS REPORT. [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT. List of Other Managers Reporting for this Manager: None I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 35 Form 13F Information Table Value Total: 423,414 List of Other Included Managers: None FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 ==================================================================================================================================== ABBOTT LABORATORIES COMMON 002824 10 0 5096 120000 SH SOLE 120000 0 0 AGILENT TECHNOLOGIES, INC. COMMON 00846U 10 1 28163 750000 SH SOLE 750000 0 0 ANALOG DEVICES, INC. COMMON 032654 10 5 16465 430000 SH SOLE 430000 0 0 ARBINET-THEXCHANGE, INC. COMMON 03875P 10 0 2649 359900 SH SOLE 359900 0 0 BANK OF NEW YORK CO., INC. COMMON 064057 10 2 31535 875000 SH SOLE 875000 0 0 BRADY CORPORATION CLASS A 104674 10 6 34463 920000 SH SOLE 920000 0 0 CAPITAL ONE FINANCIAL CORP. COMMON 14040H 10 5 24156 300000 SH SOLE 300000 0 0 CERIDIAN CORPORATION COMMON 156779 10 0 9635 378600 SH SOLE 378600 0 0 CHEVRON CORPORATION COMMON 166764 10 0 13584 234328 SH SOLE 234328 0 0 CINCINNATI BELL INC. COMMON 171871 10 6 2260 500000 SH SOLE 500000 0 0 CIRRUS LOGIC INC. COMMON 172755 10 0 848 100000 SH SOLE 100000 0 0 CONVERGYS CORPORATION COMMON 212485 10 6 28226 1550000 SH SOLE 1550000 0 0 CYPRESS SEMICONDUCTOR CORPORATION COMMON 232806 10 9 4322 255000 SH SOLE 255000 0 0 DOVER CORPORATION COMMON 260003 10 8 19424 400000 SH SOLE 400000 0 0 THE DOW CHEMICAL COMPANY COMMON 260543 10 3 4060 100000 SH SOLE 100000 0 0 ERIE INDEMNITY COMPANY CLASS A 29530P 10 2 526 10000 SH SOLE 10000 0 0 INTEL CORPORATION COMMON 458140 10 0 19071 980000 SH SOLE 980000 0 0 KERR-MCGEE CORPORATION COMMON 492386 10 7 19096 200000 SH SOLE 200000 0 0 MACMORAN EXPLORATION CORPORATION COMMON 582411 10 4 8920 500000 SH SOLE 500000 0 0 MERCK & CO., INC. COMMON 589331 10 7 3523 100000 SH SOLE 100000 0 0 MOTOROLA, INC. COMMON 620076 10 9 4582 200000 SH SOLE 200000 0 0 MURPHY OIL CORPORATION COMMON 626717 10 2 29892 600000 SH SOLE 600000 0 0 NEXEN INC. COMMON 65334H 10 2 8806 160000 SH SOLE 160000 0 0 PFIZER INC. COMMON 717081 10 3 2492 100000 SH SOLE 100000 0 0 POLYONE CORPORATION COMMON 73179P 10 6 9040 970000 SH SOLE 970000 0 0 ROHM AND HAAS COMPANY COMMON 775371 10 7 7331 150000 SH SOLE 150000 0 0 ROPER INDUSTRIES, INC. COMMON 776696 10 6 19938 410000 SH SOLE 410000 0 0 SCHERING-PLOUGH CORP. COMMON 806605 10 1 8546 450000 SH SOLE 450000 0 0 SOLECTRON CORPORATION COMMON 834182 10 7 8000 2000000 SH SOLE 2000000 0 0 SONUS NETWORKS, INC. COMMON 835916 10 7 10960 2000000 SH SOLE 2000000 0 0 TRANSMONTAIGNE INC. COMMON 893934 10 9 12017 1225000 SH SOLE 1225000 0 0 THE TRIZETTO GROUP, INC. COMMON 896882 10 7 18037 1025400 SH SOLE 1025400 0 0 TRONOX INC. CLASS B 897051 20 7 685 40328 SH SOLE 40328 0 0 UNISYS CORPORATION COMMON 909214 10 8 6201 900000 SH SOLE 900000 0 0 VICAL INCORPORATED COMMON 925602 10 4 865 140000 SH SOLE 140000 0 0