UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.1)* Alleghany Corp. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 017175100 -------------------------------------------------------------------------------- (CUSIP Number) December 31, 2012 -------------------------------------------------------------------------------- (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 remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. 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). ------------------------------------------------------------------------------ ----------------------- CUSIP No. 017175100 13G ----------------------- ------------------------------------------------------------------------------ 1. Name of Reporting Person I.R.S. Identification No. of above Person Davis Selected Advisers, L.P. 85-0360310 ------------------------------------------------------------------------------ 2. Check the Appropriate Box if a Member of a Group (a) [_] (b) [X] ------------------------------------------------------------------------------ 3. SEC Use Only ------------------------------------------------------------------------------ 4. Citizenship or Place of Organization Colorado Limited Partnership ------------------------------------------------------------------------------ 5. Sole Voting Power Number of 1,884,618 shares Shares ---------------------------------------------------------- 6. Shared or No Voting Power Beneficially 0 (Shared) 169,392 (No Vote) Owned by ---------------------------------------------------------- Each 7. Sole Dispositive Power Reporting 2,054,010 shares Person ---------------------------------------------------------- 8. Shared Dispositive Power With: 0 ------------------------------------------------------------------------------ 9. Aggregate Amount Beneficially Owned by Each Reporting Person 2,054,010 shares ------------------------------------------------------------------------------ 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares [_] n/a ------------------------------------------------------------------------------ 11. Percent of Class Represented by Amount in Row (9) 12.1% ------------------------------------------------------------------------------ 12. Type of Reporting Person IA ------------------------------------------------------------------------------- ----------------------- CUSIP No. 017175100 ----------------------- ------------------------------------------------------------------------------ 1. Name of Reporting Person I.R.S. Identification No. of above Person Davis New York Venture Fund 13-2601967 ------------------------------------------------------------------------------ 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 Corporationp ------------------------------------------------------------------------------ 5. Sole Voting Power Number of 0 Shares ---------------------------------------------------------- 6. Shared Voting Power Beneficially 802,256 shares Owned by ---------------------------------------------------------- Each 7. Sole Dispositive Power Reporting 0 Person ---------------------------------------------------------- 8. Shared Dispositive Power With: 802,256 shares ------------------------------------------------------------------------------ 9. Aggregate Amount Beneficially Owned by Each Reporting Person 802,256 shares ------------------------------------------------------------------------------ 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares [_] n/a ------------------------------------------------------------------------------ 11. Percent of Class Represented by Amount in Row (9) 4.7% ------------------------------------------------------------------------------ 12. Type of Reporting Person IV ------------------------------------------------------------------------------- Item 1(a). Name of Issuer: Alleghany Corp. Item 1(b). Address of Issuer's Principal Executive Offices: 7 Times Square Tower New York, NY 10036 Item 2(a) and (b). Names and Principal Business Addresses of Persons Filing: (1) Davis Selected Advisers, L.P. 2949 East Elvira Road, Suite 101 Tucson, Arizona 85756 (2) Davis New York Venture Fund c/o Davis Selected Advisers, L.P. 2949 East Elvira Road, Suite 101 Tucson, Arizona 85756 Item 2(c). Citizenship: Davis Selected Advisers, L.P. - Colorado Limited Partnership Davis New York Venture Fund - Maryland Corporation Item 2(d). Title of Class of Securities: Common Stock Item 2(e). CUSIP Number: 017175100 Item 3. If this statement is filed pursuant to Rules 13d-1(b) or 13d-2(b) or (c), check whether the person filing is a : (d) Investment Company registered under Sec. 8 of the Investment Company Act - Davis New York Venture Fund a series of Davis New York Venture Fund, Inc. (e) Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. This statement is being filed by Davis Selected Advisers, L.P. as a registered investment adviser. All of the securities covered by this report are owned legally by Davis Selected Advisers investment advisory clients and none are owned directly or indirectly by Davis Selected Advisers. As permitted by Rule 13d-4, the filing of this statement shall not be construed as an admission that Davis Selected Advisers, L.P. is the beneficial owner of any of the securities covered by this statement. -------------------------------------------------------------------------------- Item 4. Ownership. (a). Amount beneficially owned: See the response(s) to Item 9 on the attached cover page(s). (b). Percent of Class: See the response(s) to Item 11 on the attached cover page(s). (c). Number of shares as to which such person has: (i). Sole power to vote or to direct the vote: See the response(s) to Item 5 on the attached cover page(s). (ii). Shared or no power to vote or to direct the vote: See the response(s) to Item 6 on the attached cover page(s). (iii). Sole power to dispose or to direct the disposition of: See the response(s) to Item 7 on the attached cover page(s). (iv). Shared power to dispose or to direct the disposition of: See the response(s) to Item 8 on the attached cover page(s). Item 5. Ownership of Five Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof Davis New York Venture Fund has ceased to be the beneficial owner of more than five percent of the class of the class of securities, check the following: X Item 6. Ownership of More than Five Percent on Behalf of Another Person. Not Applicable Item 7. Identification and Classification of the Subsidiary 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. SIGNATURE 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. Davis Selected Advisers, L.P. BY /s/ Sharra Haynes PRINT Sharra Haynes Vice President DATE February 14, 2013 Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of this Schedule 13G with respect to the Securities of the Issuer and further agree that this joint filing agreement be included as an exhibit to this Schedule 13G. In evidence thereof, the undersigned hereby execute this Agreement as of February 14, 2013. Davis Selected Advisers, L.P. BY /s/ Sharra Haynes PRINT Sharra Haynes Vice President DATE February 14, 2013 Davis New York Venture Fund BY /s/ Thomas Tays PRINT Thomas Tays Vice President DATE February 14, 2013