United States Securities and Exchange Commission Washington, DC 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-00179 Central Securities Corporation (Exact name of registrant as specified in charter) 630 Fifth Avenue, Suite 820 New York, N.Y. 10111 (Address of principal executive offices) Registrant's telephone number including area code: 212-698-2020 Date of fiscal year end: December 31 Date of reporting period: March 31, 2006 Item 1. Schedule of Investments. CENTRAL SECURITIES CORPORATION Statement of Investments March 31, 2006 (Unaudited) PORTFOLIO SECURITIES 89.3% STOCKS (COMMON UNLESS SPECIFIED OTHERWISE) Prin.Amt. or Shares Value --------- ----- Banking and Finance 9.3% 875,000 The Bank of New York Company, Inc.............. $ 31,535,000 300,000 Capital One Financial Corporation.............. 24,156,000 ------------ 55,691,000 ------------ Business Services 0.5% 359,900 Arbinet-thexchange, Inc. (a)................... 2,648,864 ------------ Chemicals 3.5% 100,000 The Dow Chemical Company....................... 4,060,000 970,000 PolyOne Corporation (a)........................ 9,040,400 150,000 Rohm and Haas Company.......................... 7,330,500 40,328 Tronox Inc. Class B (a)........................ 685,173 ------------ 21,116,073 ------------ Communications 0.4% 500,000 Cincinnati Bell Inc.(a)........................ 2,260,000 ------------ Electronics 15.5% 750,000 Agilent Technologies, Inc. (a)................. 28,162,500 430,000 Analog Devices, Inc............................ 16,464,700 100,000 Cirrus Logic, Inc. (a)......................... 848,000 255,000 Cyprus Semiconductor Corp...................... 4,322,250 980,000 Intel Corporation.............................. 19,070,800 200,000 Motorola, Inc.................................. 4,582,000 2,000,000 Solectron Corporation (a)...................... 8,000,000 2,000,000 Sonus Networks, Inc. (a)....................... 10,960,000 ------------ 92,410,250 ------------ Energy 15.5% 234,328 Chevron Corporation............................ 13,583,994 200,000 Kerr-McGee Corporation......................... 19,096,000 500,000 McMoRan Exploration Co. (a).................... 8,920,000 600,000 Murphy Oil Corporation......................... 29,892,000 160,000 Nexen Inc...................................... 8,806,400 1,225,000 TransMontaigne Inc. (a)........................ 12,017,250 ------------ 92,315,644 ------------ Health Care 3.4% 120,000 Abbott Laboratories............................ 5,096,400 100,000 Merck & Co., Inc. ............................. 3,523,000 100,000 Pfizer Inc..................................... 2,492,000 450,000 Schering-Plough Corporation.................... 8,545,500 140,000 Vical Inc. (a)................................. 865,200 ------------ 20,522,100 ------------ Prin.Amt. or Shares Value --------- ----- Information Technology Services 10.4% 378,600 Ceridian Corporation (a)....................... $ 9,635,370 1,550,000 Convergys Corporation (a)...................... 28,225,500 1,025,400 The TriZetto Group, Inc. (a)................... 18,036,786 900,000 Unisys Corporation (a)......................... 6,201,000 ------------ 62,098,656 ------------ Insurance 18.3% 10,000 Erie Indemnity Co. Class A..................... 526,400 70,000 The Plymouth Rock Company, Inc. Class A (b)(c)(d).......................... 108,500,000 ------------ 109,026,400 ------------ Manufacturing 12.4% 920,000 Brady Corporation Class A...................... 34,463,200 400,000 Dover Corporation.............................. 19,424,000 410,000 Roper Industries, Inc.......................... 19,938,300 ------------ 73,825,500 ------------ Retail Trade 0.1% 28,751 AeroGroup International, Inc. (a)(c)(d)........ 644,885 ------------ Miscellaneous 0.0% Grumman Hill Investments, L.P. (a)(c).......... 0 ------------ Total Portfolio Securities (cost $218,015,010)................. 532,559,372 ------------ SHORT-TERM INVESTMENTS 10.2% Commercial Paper 5.5% 5,634,000 Citigroup Funding 4.5682% due 5/3/06............ 5,611,264 21,396,000 General Electric Capital Corp. 4.3547% - 4.6528% due 4/5/06 - 5/17/06........ 21,319,080 1,967,000 Prudential Funding 4.5887% due 4/12/06.......... 1,964,247 4,492,000 UBS Finance 4.6528% due 5/24/06................. 4,461,447 ------------ 33,356,038 U.S. Treasury Bills 4.7% 27,835,000 U.S. Treasury Bills 3.9611% - 4.3413% due 4/20/06 - 4/27/06........................ 27,765,064 ------------ Total Short-Term Investments (cost $61,121,102).................... 61,121,102 ------------ Total Investments (cost $279,136,112) (99.5%)........... 593,680,474 Cash, receivables and other assets less liabilities (0.5%)............... 2,682,333 ------------ Net Assets (100%)....................... $596,362,807 ============ (a) Non-dividend paying. (b) Affiliate as defined in the Investment Company Act of 1940. (c) Valued at estimated fair value. (d) Restricted security. See footnote 2. See accompanying notes to statement of investments. CENTRAL SECURITIES CORPORATION NOTES TO STATEMENT OF INVESTMENTS 1. Security Valuation - Securities are valued at the last sale price or, if unavailable, at the closing bid price. Corporate discount notes are valued at amortized cost, which approximates value. Securities for which no ready market exists are valued at estimated fair value by the Board of Directors. As of March 31, 2006, the tax cost of investments was $279,136,112. Net unrealized appreciation was $314,544,362 consisting of gross unrealized appreciation and gross unrealized depreciation of $319,716,341 and $5,171,979, respectively. 2. Restricted Securities - The Corporation from time to time invests in securities the resale of which is restricted. On March 31, 2006, such investments had an aggregate value of $109,144,885, which was equal to 18.3% of the Corporation's net assets. Investments in restricted securities at March 31, 2006, including the acquisition dates and cost, were: Company Shares Security Date Purchased Cost ------- ------ -------- -------------- ---- AeroGroup International, Inc. 28,751 Common Stock 6/14/05 $17,200 Grumman Hill Investments, L.P. L.P. Interest 9/11/85 0 The Plymouth Rock Company, Inc. 70,000 Class A Common Stock 12/15/82 1,500,000 6/9/84 699,986 The Corporation does not have the right to demand registration of the restricted securities. Item 2. Controls and Procedures. (a) Disclosure Controls and Procedures. The Principal Executive and Financial Officers have concluded that the Registrant's Disclosure Controls and Procedures are effective based on their evaluation of the Disclosure Controls and Procedures as of a date within 90 days of the filing date of this report. (b) Internal Control Over Financial Reporting. During the last fiscal quarter, there was no significant change in the Registrant's internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 3. Exhibits. (a) Certifications. Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. CENTRAL SECURITIES CORPORATION By: /s/ Wilmot H. Kidd ------------------ President Date: April 28, 2006 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Wilmot H. Kidd ------------------ President Date: April 28, 2006 By: /s/ Charles N. Edgerton ----------------------- Vice President and Treasurer Date: April 28, 2006