CUSIP NO.  904311107                 13G                       PAGE 1 OF 6 PAGES




                                 UNITED STATES
                       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

                   UNDER THE SECURITIES EXCHANGE ACT OF 1934
                             (AMENDMENT NO. __)(1)

                               UNDER ARMOUR, INC.
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                                (Name of Issuer)

                  Class A Common Stock $0.0003(1/3) par value
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                         (Title of Class of Securities)

                                   904311107
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                                 (CUSIP Number)

                               December 31, 2006
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            (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 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).





                                Page 1 of 6 Pages
                                No Exhibit Index

CUSIP NO.  904311107                 13G                       PAGE 2 OF 6 PAGES
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  1.    Names of Reporting Persons.
        I.R.S. Identification Nos. of above persons (entities only).

        Turner Investment Partners, Inc.
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  2.    Check the Appropriate Box if a Member of a Group (See Instructions)
        (a) [ ]

        (b) [ ]

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  3.    SEC Use Only


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  4.    Citizenship or Place of Organization

        Pennsylvania
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     Number of             5.      Sole Voting Power

      Shares                       1,130,999
                           -----------------------------------------------------
   Beneficially            6.      Shared Voting Power

     Owned by                      0
                           -----------------------------------------------------
       Each                7.      Sole Dispositive Power

     Reporting                     1,816,602
                           -----------------------------------------------------
   Person With:            8.      Shared Dispositive Power

                                   0
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  9.    Aggregate Amount Beneficially Owned by Each Reporting Person

        1,816,602
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 10.    Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares
        (See Instructions)

        [ ]
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 11.    Percent of Class Represented by Amount in Row (9)

        5.3%
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 12.    Type of Reporting Person (See Instructions)

        IA
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CUSIP NO.  904311107                 13G                       PAGE 3 OF 6 PAGES



ITEM 1.

(a) Name of Issuer:                                      Under Armour, Inc.
(b) Address of Issuer's Principal Executive Offices:     1020 Hull Street,
                                                         3rd Floor
                                                         Baltimore, MD 21230


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 $0.0003(1/3) par value
(e) CUSIP Number:  904311107


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) Amount beneficially owned:  1,816,602

CUSIP NO.  904311107                 13G                       PAGE 4 OF 6 PAGES



(b) Percent of class:  5.3% (Based upon 34,387,965 shares of Class A Common
    Stock, $0.0003(1/3) par value outstanding as of October 30, 2006 as
    disclosed in the Under Armour, Inc., Quarterly Report on Form 10-Q for the
    quarter ended September 30, 2006.)

(c) Number of shares as to which such person has:
    (i)    Sole power to vote or to direct the vote:  1,130,999
    (ii)   Shared power to vote or to direct the vote:  0
    (iii)  Sole power to dispose or to direct the disposition of:  1,816,602
    (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. [ ]


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 of Turner Investment Partners, Inc. 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.  904311107                 13G                       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.  904311107                 13G                       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.

                                                        January 18, 2007
                                                --------------------------------
                                                Date

                                                Turner Investment Partners, Inc.

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