UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Horsehead Holding Corp. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 440694305 -------------------------------------------------------------------------------- (CUSIP Number) Dalal Street, LLC, 1220 Roosevelt, Suite 200, Irvine, CA 92620, 949-453-0609 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) June 20, 2013 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |_| Rule 13d-1(b) |X| 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 disclosures provided in a prior cover page. The information required on 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. 440694305 13G Page 2 of 5 Pages -------------------------------------------------------------------------------- 1. Names of Reporting Persons. Dalal Street, LLC I.R.S. Identification Nos. of above persons (entities only) 20-2815874 -------------------------------------------------------------------------------- 2. Check the Appropriate Box If a Member of a Group (See Instructions) (a) |_| (b) |_| -------------------------------------------------------------------------------- 3. SEC Use Only -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization Dalal Street, LLC -- California -------------------------------------------------------------------------------- 5. SOLE VOTING POWER 0 shares ------------------------------------------------------------- 6. SHARED VOTING POWER NUMBER OF SHARES 4,573,961 BENEFICIALLY ------------------------------------------------------------- OWNED BY EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH 0 shares ------------------------------------------------------------- 8. SHARED DISPOSITIVE POWER 4,573,961 shares -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person Dalal Street, LLC -- 4,573,961 -------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)|_| ---------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) Dalal Street, LLC -- 10.37% -------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) Dalal Street, LLC -- 00 (Limited Liability Company) -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- CUSIP No. 440694305 13G Page 3 of 5 Pages -------------------------------------------------------------------------------- 1. Names of Reporting Persons. Mohnish Pabrai I.R.S. Identification Nos. of above persons (entities only) N/A -------------------------------------------------------------------------------- 2. Check the Appropriate Box If a Member of a Group (See Instructions) (a) |_| (b) |_| -------------------------------------------------------------------------------- 3. SEC Use Only -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization Mohnish Pabrai -- United States -------------------------------------------------------------------------------- 5. SOLE VOTING POWER 0 shares ------------------------------------------------------------- 6. SHARED VOTING POWER NUMBER OF SHARES 14,901 shares BENEFICIALLY ------------------------------------------------------------- OWNED BY EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH 0 shares ------------------------------------------------------------- 8. SHARED DISPOSITIVE POWER 14,901 shares -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person Mohnish Pabrai -- 14,901 -------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)|_| ---------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) Mohnish Pabrai -- 0.034% -------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) Mohnish Pabrai -- IN -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- CUSIP No. 440694305 13G Page 4 of 5 Pages Item 1. (a) Name of Issuer: Horsehead Holding Corp. (b) Address of Issuer's Principal Executive Offices: 4955 Steubenville Pike, Suite 405 Pittsburgh, PA 15205 Item 2. (a) Name of Person Filing: Dalal Street, LLC Mohnish Pabrai (b) Address of the Principal Office or, if none, residence: Dalal Street, LLC Mohnish Pabrai 1220 Roosevelt Suite 200 Irvine, CA 92620 (c) Citizenship: Dalal Street, LLC -- California Mohnish Pabrai -- United States (d) Title of Class of Securities: Common Stock (e) CUSIP Number: 440694305 Item 3. If this statement is filed pursuant to SS.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) |_| An investment adviser in accordance with S.240.13d-1(b)(1)(ii) (E); (f) |_| An employee benefit plan or endowment fund in accordance with S.240.13d-1(b)(1)(ii)(F); (g) |_| A parent holding company or control person in accordance with S. 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 S.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: Dalal Street, LLC -- 4,573,961 Mohnish Pabrai -- 14,901 (b) Percent of class: Dalal Street, LLC - 10.37% Mohnish Pabrai -- 0.034% -------------------------------------------------------------------------------- CUSIP No. 440694305 13G Page 5 of 5 Pages (c) Number of shares as to which the person has: (i) Sole power to vote or to direct the vote(1) Dalal Street, LLC -- 0 Mohnish Pabrai -- 0 (ii) Shared power to vote or to direct the vote(1) Dalal Street, LLC -- 4,573,961 Mohnish Pabrai -- 14,901 (iii) Sole power to dispose or to direct the disposition of(1) Dalal Street, LLC -- 0, Mohnish Pabrai -- 0. (iv) Shared power to dispose or to direct the disposition of(1) Dalal Street, LLC -- 4,573,961 Mohnish Pabrai -- 14,901 (1)Securities reported for Dalal Street, LLC (the "LLC") represent Common Stock beneficially owned and held of record by 3 private funds (Pabrai Investment Fund 2, L.P., Pabrai Investment Fund 3, Ltd. and Pabrai Investment Fund IV, L.P.) managed by the LLC. Securities reported for Mohnish Pabrai represent Common Stock beneficially owned and held of record by Mohnish Pabrai and Harina Kapoor JTWROS and 2 managed accounts (Aikyum, Inc. and Harina Kapoor IRA) managed by Mr. Pabrai. Mr. Pabrai is the managing member of the LLC. The 2 managed accounts are each beneficially owned by Harina Kapoor, who is Mr. Pabrai's wife. The LLC, private funds, managed accounts and Mr. Pabrai (the "Reporting Persons") are each beneficial owners and have an address of 1220 Roosevelt, Suite 200, Irvine, CA 92620. The Reporting Persons disclaim beneficial ownership or otherwise of such portion of the Common Stock in which the Reporting Persons have no actual pecuniary interest therein. 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 the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following |_|. Item 6. Ownership of More than Five Percent on Behalf of Another Person. Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person. Item 8. Identification and Classification of Members of the Group Item 9. Notice of Dissolution of Group Item 10. Certification (a) The following certification shall be included if the statement is filed pursuant to S.240.13d-1(b): 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. (b) The following certification shall be included if the statement is filed pursuant to S.240.13d-1(c): By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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. 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. DALAL STREET, LLC By: /s/ Mohnish Pabrai Mohnish Pabrai, Managing Member MOHNISH PABRAI By: /s/ Mohnish Pabrai Mohnish Pabrai, individually