UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5) MARKEL CORPORATION ---------------------------------------------- (Name of Issuer) Common Stock ---------------------------------------------- (Title of Class of Securities) 570535104 ---------------------------------------------- (CUSIP Number) December 31, 2003 ---------------------------------------------- (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |X| Rule 13d-1(b) |_| Rule 13d-1(c) |_| Rule 13d-1(d) The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). SCHEDULE 13G --------- ---------------------------------------------------------------------- 1 NAME OF REPORTING PERSON SS. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Robert E. Torray & Co., Inc. N/A --------- ---------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| --------- ---------------------------------------------------------------------- SEC USE ONLY 3 --------- ---------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Maryland ----------------------- --------- ---------------------------------------------- 5 SOLE VOTING POWER 419,583 NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH --------- ---------------------------------------------- 6 SHARED VOTING POWER 0 --------- ---------------------------------------------- 7 SOLE DISPOSITIVE POWER 419,583 --------- ---------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 ----------- -------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 419,583 ------------ ------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES |_| ------------ ------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 4.26% ------------ ------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IA ------------ ------------------------------------------------------------------- --------- ---------------------------------------------------------------------- 1 NAME OF REPORTING PERSON SS. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Torray Corp. N/A --------- ---------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| --------- ---------------------------------------------------------------------- 3 SEC USE ONLY --------- ---------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Maryland ----------------------- --------- ---------------------------------------------- NUMBER OF 5 SHARES SOLE VOTING POWER BENEFICIALLY 281,205 OWNED BY EACH REPORTING PERSON WITH --------- ---------------------------------------------- 6 SHARED VOTING POWER 0 --------- ---------------------------------------------- 7 SOLE DISPOSITIVE POWER 281,205 --------- ---------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 ------------ ------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 281,205 ------------ ------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES |_| ------------ ------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.85% ------------ ------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IA ------------ ------------------------------------------------------------------- --------- ---------------------------------------------------------------------- 1 NAME OF REPORTING PERSON SS. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Robert E. Torray N/A --------- ---------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| --------- ---------------------------------------------------------------------- 3 SEC USE ONLY --------- ---------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States ----------------------- --------- ---------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH --------- ---------------------------------------------- 6 SHARED VOTING POWER 700,788 --------- ---------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 --------- ---------------------------------------------- 8 SHARED DISPOSITIVE POWER 700,788 ------------ ------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 700,788 ------------ ------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES |_| ------------ ------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 7.11% ------------ ------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IN, HC ------------ ------------------------------------------------------------------- --------- ---------------------------------------------------------------------- 1 NAME OF REPORTING PERSON SS. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Douglas C. Eby N/A --------- ---------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| --------- ---------------------------------------------------------------------- SEC USE ONLY 3 --------- ---------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States ----------------------- --------- ---------------------------------------------- 5 SOLE VOTING POWER 7,128 NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH --------- ---------------------------------------------- 6 SHARED VOTING POWER 0 --------- ---------------------------------------------- 7 SOLE DISPOSITIVE POWER 7,128 --------- ---------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 ----------- -------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,128 ------------ ------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES |_| ------------ ------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) .0007% ------------ ------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON IN, HC ------------ ------------------------------------------------------------------- Item 1. (a). Name of Issuer: Markel Corporation (b). Address of Issuer's Principal Executive Offices: 4251 Highwoods Parkway Glen Allen, VA 23060 Item 2. (a). Name of Person Filing: (i) Robert E. Torray & Co., Inc. ("Torray & Co.") (ii) Torray Corp. ("Torray Corp.") (iii) Robert E. Torray ("Torray") (iv) Douglas C. Eby ("Eby") (b). Address of Principal Business Office or, if none, Residence: 7501 Wisconsin Avenue Suite 1100 Bethesda, MD 20814 (c). Citizenship or Place of Organization: Torray & Co. and Torray Corp.: Maryland Torray & Eby: United States (d). Title of Class of Securities: Common Stock (e). CUSIP Number: 570535104 Item 3. If this statement is filed pursuant to sections 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: (a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o); (b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); (c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c.); (d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8); (e) [x] An investment adviser in accordance with section 240.13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with section 240.13d-1(b)(1)(ii)(F); (g) [x] A parent holding company or control person in accordance with section 240.13d-1(b)(1)(ii)(G); (h) [ ] A savings associations as defined in section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with section 240.13d-1(b)(1)(ii)(J). Item 4. Ownership: Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. (a). Amount beneficially owned: (i) Torray & Co.: 419,583 (ii) Torray Corp.: 281,205 (iii) Torray: 700,788 (iv) Eby: 7,128 (b). Percent of class: (i) Torray & Co.: 4.26% (ii) Torray Corp.: 2.85% (iii) Torray: 7.11% (iv) Eby: 0.0007% (c). Number of shares as to which the person has: (1) Sole power to vote or to direct the vote: (i) Torray & Co.: 419,583 (ii) Torray Corp.: 281,205 (iii) Torray: 0 (iv) Eby: 7,128 (2) Shared power to vote or to direct the vote: (i) Torray & Co.: 0 (ii) Torray Corp.: 0 (iii) Torray: 700,788 (iv) Eby: 0 (3) Sole power to dispose or to direct the disposition of: (i) Torray & Co.: 419,583 (ii) Torray Corp.: 281,205 (iii) Torray: 0 (iv) Eby: 7,128 (4) Shared power to dispose or to direct the disposition of: (i) Torray & Co.: 0 (ii) Torray Corp.: 0 (iii) Torray: 700,788 (iv) Eby: 0 Item 5. Ownership of Five Percent or Less of a Class: Not Applicable Item 6. Ownership of More Than Five Percent on Behalf of Another Person: Not Applicable Item 7. Identification and Classification of Subsidiaries which Acquired the Security Being Reported on by the Parent Holding Company: Not Applicable Item 8. Identification and Classification of Members of the Group: Not Applicable Item 9. Notice of Dissolution of Group: Not Applicable Item 10. Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. In accordance with Rule 13d-4 of the Securities Exchange Act of 1934, each of the persons filing this statement expressly disclaim the beneficial ownership of the securities covered by this statement other than those personally held and the filing of this report shall not be construed as an admission by such persons that they are the beneficial owners of such securities. In addition, in accordance with written procedures adopted by Torray & Co. because of Mr. Eby's status as a director of the issuer, Mr. Eby exercises no voting or dispositive power over the securities covered by this statement (other than those personally held), and he is therefore not deemed to beneficially own such shares. SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. ROBERT E. TORRAY & CO., INC. Date: February 13, 2004 By: /s/William Lane ----------------------------- William Lane Executive Vice President TORRAY CORP. Date: February 13, 2004 By: /s/William Lane ---------------------------- William Lane Vice President ROBERT E. TORRAY Date: February 13, 2004 By: /s/Robert E. Torray ---------------------------- Robert E. Torray DOUGLAS C. EBY Date: February 13, 2004 By: /s/Douglas C. Eby ---------------------------- Douglas C. Eby EXHIBIT 1 JOINT FILING AGREEMENT AMONG ROBERT E. TORRAY & CO., INC., TORRAY CORP., ROBERT E. TORRAY AND DOUGLAS C. EBY WHEREAS, in accordance with Rule 13d-1(k) under the Securities and Exchange Act of 1934 (the "Act"), only one joint statement and any amendments thereto need to be filed whenever one or more persons are required to file such a statement or any amendments thereto pursuant to Section 13(d) of the Act with respect to the same securities, provided that said persons agree in writing that such statement or amendments thereto is filed on behalf of each of them; NOW, THEREFORE, the parties hereto agree as follows: ROBERT E. TORRAY & CO., INC., TORRAY CORP., ROBERT E. TORRAY AND DOUGLAS C. EBY hereby agree, in accordance with Rule 13d-1(k) under the Act, to file a statement on Schedule 13G relating to their ownership of Common Stock of the Issuer and do hereby further agree that said statement shall be filed on behalf of each of them. ROBERT E. TORRAY & CO., INC. Date: February 13, 2004 By: /s/William Lane ----------------------------- William Lane Executive Vice President TORRAY CORP. Date: February 13, 2004 By: /s/William Lane ---------------------------- William Lane Vice President ROBERT E. TORRAY Date: February 13, 2004 By: /s/Robert E. Torray ---------------------------- Robert E. Torray DOUGLAS C. EBY Date: February 13, 2004 By: /s/Douglas C. Eby ---------------------------- Douglas C. Eby