SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No.____________) Chipotle Mexican Grill Inc. -------------------------------------------------------------------------------- (Name of Issuer) Class B Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 169656204 -------------------------------------------------------------------------------- (CUSIP Number) October 13, 2006 -------------------------------------------------------------------------------- (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) ---------- (1) 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 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. 169656204 13G Page __ of___ Pages ________________________________________________________________________________ 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Deephaven Capital Management LLC 41-1908497 ________________________________________________________________________________ 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [No] (b) [X] ________________________________________________________________________________ 3. SEC USE ONLY ________________________________________________________________________________ 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ________________________________________________________________________________ NUMBER OF 5. SOLE VOTING POWER SHARES 1,712,100 _________________________________________________________________ BENEFICIALLY 6. SHARED VOTING POWER OWNED BY 0 _________________________________________________________________ EACH 7. SOLE DISPOSITIVE POWER REPORTING 1,712,100 _________________________________________________________________ PERSON 8. SHARED DISPOSITIVE POWER WITH 0 ________________________________________________________________________________ 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,712,100 ________________________________________________________________________________ 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] ________________________________________________________________________________ 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.18% ________________________________________________________________________________ 12. TYPE OF REPORTING PERSON* IA Deephaven Capital Management LLC ("Deephaven") is the investment manager to one or more private funds and/or separately managed accounts, including Deephaven Event Trading Ltd. (collectively, the "Funds"). As investment manager to the Funds, Deephaven has full voting and dispositive power with respect to the 1,712,100 shares of the common stock Class B of the Issuer ("Common Stock") held directly by the funds, including 1,052,320 shares held directly by Deephaven Event Trading Ltd. Deephaven disclaims beneficial ownership of such shares of Common Stock except to the extent of its pecuniary interest in such shares. ________________________________________________________________________________ CUSIP No. 169656204 13G Page __ of___ Pages ________________________________________________________________________________ 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Deephaven Event Trading Ltd. 98-0399052 ________________________________________________________________________________ 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [No] (b) [X] ________________________________________________________________________________ 3. SEC USE ONLY ________________________________________________________________________________ 4. CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands ________________________________________________________________________________ NUMBER OF 5. SOLE VOTING POWER SHARES 0 _________________________________________________________________ BENEFICIALLY 6. SHARED VOTING POWER OWNED BY 1,052,320 _________________________________________________________________ EACH 7. SOLE DISPOSITIVE POWER REPORTING 0 _________________________________________________________________ PERSON 8. SHARED DISPOSITIVE POWER WITH 1,052,320 ________________________________________________________________________________ 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,052,320 ________________________________________________________________________________ 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] ________________________________________________________________________________ 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.64% ________________________________________________________________________________ 12. TYPE OF REPORTING PERSON* OO The principal business of Deephaven Event Trading Ltd. is to serve as an investment fund under the direction of its investment manager, Deephaven Capital Management LLC. ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 169656204 13G Page __ of __ Pages Item 1(a). Name of Issuer: Chipotle Mexican Grill, Inc. ____________________________________________________________________ Item 1(b). Address of Issuer's Principal Executive Offices: 1543 Wazee Street, Suite 200 Denver, CO 80202 ____________________________________________________________________ Item 2(a). Name of Person Filing: Deephaven Capital Management LLC, and Deephaven Event Trading Ltd. ____________________________________________________________________ Item 2(b). Address of Principal Business Office, or if None, Residence: The principal business office of Deephaven Capital Management LLC is: 130 Cheshire Lane, Suite 102, Minnetonka, MN 55305 The principal business office of Deephaven Event Trading Ltd. is: c/o M&C Corporate Services Limited, Ugland House, S. Church Street George Town, Grand Cayman, Caymen Island ____________________________________________________________________ Item 2(c). Citizenship: Deephaven Capital Management LLC is a Delaware limited liability company Deephaven Event Trading Ltd. is a Cayman Island exempted company ____________________________________________________________________ Item 2(d). Title of Class of Securities: Class B Common ____________________________________________________________________ Item 2(e). CUSIP Number: 169656204 ____________________________________________________________________ Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: (a) [_] Broker or dealer registered under Section 15 of the Exchange Act. (b) [_] Bank as defined in Section 3(a)(6) of the Exchange Act. (c) [_] Insurance company as defined in Section 3(a)(19) of the Exchange Act. (d) [_] Investment company registered under Section 8 of the Investment Company Act. (e) [_] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); (f) [_] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); (g) [_] A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G); (h) [_] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act; (i) [_] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act; (j) [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J). CUSIP No. 169656204 13G Page __ of __ Pages 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: 1,712,100 ______________________________________________________________________ (b) Percent of class: 9.18% This percentage was determined by dividing 1,712,100 by the sum of 18,648,858 shares of Common Stock Class B outstanding as of June 30, 2006, based upon the Issuer's Form 10-Q filed on August 8,2006 with the Securities and Exchange Commission pursuant to Section 13 or 15 (D) of the Securities Exchange Act of 1934. ______________________________________________________________________ (c) Number of shares as to which such person has: 1,712,100 (i) Sole power to vote or to direct the vote_______________________, 0 (ii) Shared power to vote or to direct the vote_____________________, 1,712,100 (iii) Sole power to dispose or to direct the disposition of__________, 0 (iv) Shared power to dispose or to direct the disposition of________ 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 [ ]. N/A _______________________________________________________________________ Item 6. Ownership of More Than Five Percent on Behalf of Another Person. N/A _______________________________________________________________________ Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. N/A _______________________________________________________________________ Item 8. Identification and Classification of Members of the Group. N/A _______________________________________________________________________ Item 9. Notice of Dissolution of Group. N/A ______________________________________________________________________ Item 10. Certifications. "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 such 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. October 20, 2006 ---------------------------------------- (Date) /s/Thomas Wagner ---------------------------------------- (Signature) Chief Compliance Officer ---------------------------------------- (Name/Title) Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties for whom copies are to be sent. Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001).