CUSIP No. 169656105                   13G/A                    Page 1 of 6 Pages


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13G/A

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

                              (Amendment No. 1)(1)

                          CHIPOTLE MEXICAN GRILL, INC.
                                (Name of Issuer)

                      Class A Common Stock, par value $0.01
                         (Title of Class of Securities)

                                    169656105
                                 (CUSIP Number)

                                  May 21, 2008
             (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)

(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 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).


                                Page 1 of 6 Pages
                                No Exhibit Index



CUSIP NO. 169656105                   13G/A                    PAGE 2 OF 6 PAGES

--------------------------------------------------------------------------------
1    NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Turner Investment Partners, Inc.
--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                    (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
3    SEC USE ONLY

--------------------------------------------------------------------------------
4    CITIZENSHIP OR PLACE OF ORGANIZATION

     Pennsylvania
--------------------------------------------------------------------------------
                    5   SOLE VOTING POWER

                        398,159
                    ------------------------------------------------------------
       NUMBER OF    6   SHARED VOTING POWER
        SHARES
     BENEFICIALLY       0
       OWNED BY     ------------------------------------------------------------
         EACH       7   SOLE DISPOSITIVE POWER
       REPORTING
        PERSON          506,470
         WITH       ------------------------------------------------------------
                    8   SHARED DISPOSITIVE POWER

                        0
--------------------------------------------------------------------------------
9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     506,470
--------------------------------------------------------------------------------
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
     (SEE INSTRUCTIONS)                                                      [ ]

--------------------------------------------------------------------------------
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     3.5%
--------------------------------------------------------------------------------
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

     IA
--------------------------------------------------------------------------------



CUSIP NO. 169656105                   13G/A                    PAGE 3 OF 6 PAGES


ITEM 1.

(a) Name of Issuer:                                 Chipotle Mexican Grill, Inc.

(b) Address of Issuer's Principal Executive Offices: 1543 Wazee Street,
                                                     Suite 200 Denver,
                                                     CO 80202

ITEM 2.

(a) - (c) Name, Principal Business Address and Citizenship of Person Filing:

          Turner Investment Partners, Inc.
          1205 Westlakes Drive, Suite 100
          Berwyn, PA 19312
          Citizenship:  Pennsylvania

(d) Title of Class of Securities: Class A Common Stock, par value $0.01

(e) CUSIP Number: 169656105

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)  [X]  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 associations 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).

ITEM 4. OWNERSHIP.

(a)-(b) Amount beneficially owned and percent of class. On May 21, 2008, Turner
        Investment Partners, Inc.'s ("Turner") beneficial ownership of the Class
        A Common Stock, par value $0.01 ("Common Stock" or "Shares") of Chipotle
        Mexican Grill, Inc. ("Issuer") decreased to 990,708 Shares, representing
        6.8% of the issued and outstanding Common Stock of the Issuer. On



CUSIP NO. 169656105                   13G/A                    PAGE 4 OF 6 PAGES


        May 29, 2008, Turner's beneficial ownership decreased to 506,470 Shares,
        representing 3.5% of the issued and outstanding Common Stock of the
        Issuer; on such date, Turner ceased to be beneficial owner of more than
        5% of the issued and outstanding Common Stock of the Issuer. (Beneficial
        ownership has been calculated based upon 14,533,855 Shares outstanding
        as of April 21, 2008 as disclosed in the Issuer's Quarterly Report or
        Form 10-Q for the quarter ended March 31, 2008, as filed with the
        Securities and Exchange Commission on April 24, 2008.)

(c)     Number of shares as to which such person has as of May 29, 2007:

        (i)   Sole power to vote or to direct the vote: 398,159

        (ii)  Shared power to vote or to direct the vote: 0

        (iii) Sole power to dispose or to direct the disposition of: 506,470

        (iv)  Shared power to dispose or direct the disposition of: 0

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 5
percent of the class of securities, check the following. [X]

ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

The securities in respect of this Schedule 13G, which is filed by Turner
Investment Partners, Inc. in its capacity as an investment adviser, are owned of
record by clients. Those clients have the right to receive, or the power to
direct the receipt of, dividends from, or the proceeds from the sale of, such
securities. No such client is known to have such right or power with respect to
more than five percent of this class of securities.

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE
        SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR CONTROL
        PERSON.

        Not Applicable.

ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

        Not Applicable.

ITEM 9. NOTICE OF DISSOLUTION OF GROUP.

        Not Applicable.



CUSIP NO. 169656105                   13G/A                    PAGE 5 OF 6 PAGES


ITEM 10. CERTIFICATION.

        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.



CUSIP NO. 169656105                   13G/A                    PAGE 6 OF 6 PAGES


                                    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.

                                        June 10, 2008
                                        ----------------
                                        Date

                                        Turner Investment Partners, Inc.


                                        By: /s/ Brian F. McNally
                                            ------------------------------------
                                        Name: Brian F. McNally
                                        Title: General Counsel and Chief
                                               Compliance Officer