Edgar Filing: Plank Kevin A

Ownership Submission

FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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3235-0287

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January 31, 2005

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Plank Kevin A

2. Issuer Name and Ticker or Trading Symbol
Under Armour, Inc. [UA]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

__X__ Director	__X__ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
President and CEO

(Last)

(First)

(Middle)

1020 HULL STREET

3. Date of Earliest Transaction (Month/Day/Year)
02/04/2011

(Street)

BALTIMORE, MD 21230

4. If Amendment, Date Original Filed(Month/Day/Year)

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	02/04/2011		C		3,870 ⁽¹⁾	A	⁽²⁾	3,970	D
Class A Common Stock	02/04/2011		C		5,580 ⁽¹⁾	A	⁽²⁾	9,550	D
Class A Common Stock	02/04/2011		C		7,650 ⁽¹⁾	A	⁽²⁾	17,200	D
Class A Common Stock	02/04/2011		C		13,955 ⁽¹⁾	A	⁽²⁾	31,155	D
Class A Common Stock	02/04/2011		C		16,645 ⁽¹⁾	A	⁽²⁾	47,800	D
Class A Common Stock	02/04/2011		S		3,870 ⁽¹⁾	D	$ 60.13 ⁽³⁾	43,930	D
Class A Common Stock	02/04/2011		S		5,580 ⁽¹⁾	D	$ 61.56 ⁽⁴⁾	38,350	D
Class A Common Stock	02/04/2011		S		7,650 ⁽¹⁾	D	$ 62.04 ⁽⁵⁾	30,700	D
Class A Common Stock	02/04/2011		S		13,955 ⁽¹⁾	D	$ 63.43 ⁽⁶⁾	16,745	D
Class A Common Stock	02/04/2011		S		16,645 ⁽¹⁾	D	$ 64.24 ⁽⁷⁾	100	D
Class A Common Stock	02/07/2011		C		270 ⁽¹⁾	A	⁽²⁾	370	D
Class A Common Stock	02/07/2011		C		26,910 ⁽¹⁾	A	⁽²⁾	27,280	D
Class A Common Stock	02/07/2011		C		20,520 ⁽¹⁾	A	⁽²⁾	47,800	D
Class A Common Stock	02/07/2011		S		270 ⁽¹⁾	D	$ 63.36 ⁽⁸⁾	47,530	D
Class A Common Stock	02/07/2011		S		26,910 ⁽¹⁾	D	$ 64.21 ⁽⁹⁾	20,620	D
Class A Common Stock	02/07/2011		S		20,520 ⁽¹⁾	D	$ 65.02 ⁽¹⁰⁾	100	D
Class A Common Stock	02/08/2011		C		4,230 ⁽¹⁾	A	⁽²⁾	4,330	D
Class A Common Stock	02/08/2011		C		38,520 ⁽¹⁾	A	⁽²⁾	42,850	D
Class A Common Stock	02/08/2011		S		4,230 ⁽¹⁾	D	$ 65.53 ⁽¹¹⁾	38,620	D
Class A Common Stock	02/08/2011		S		38,520 ⁽¹⁾	D	$ 66.51 ⁽¹²⁾	100	D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security
(Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code
(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date
(Month/Day/Year)

7. Title and Amount of Underlying Securities
(Instr. 3 and 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Class B Common Stock

⁽¹³⁾

02/04/2011

3,870 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

3,870

⁽¹³⁾

10,602,073

Class B Common Stock

⁽¹³⁾

02/04/2011

5,580 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

5,580

⁽¹³⁾

10,596,493

Class B Common Stock

⁽¹³⁾

02/04/2011

7,650 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

7,650

⁽¹³⁾

10,588,843

Class B Common Stock

⁽¹³⁾

02/04/2011

13,955 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

13,955

⁽¹³⁾

10,574,888

Class B Common Stock

⁽¹³⁾

02/04/2011

16,645 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

16,645

⁽¹³⁾

10,558,243

Class B Common Stock

⁽¹³⁾

02/07/2011

270 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

270

⁽¹³⁾

10,557,973

Class B Common Stock

⁽¹³⁾

02/07/2011

26,910 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

26,910

⁽¹³⁾

10,531,063

Class B Common Stock

⁽¹³⁾

02/07/2011

20,520 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

20,520

⁽¹³⁾

10,510,543

Class B Common Stock

⁽¹³⁾

02/08/2011

4,230 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

4,230

⁽¹³⁾

10,506,313

Class B Common Stock

⁽¹³⁾

02/08/2011

38,520 ⁽¹⁾

⁽¹³⁾

Class A Common Stock

38,520

⁽¹³⁾

10,467,793

Class B Common Stock

⁽¹³⁾

Class A Common Stock

926,982

By Annuity Trust

Class B Common Stock

⁽¹³⁾

Class A Common Stock

390,000

By KD Plank #2 LLC

Class B Common Stock

⁽¹³⁾

Class A Common Stock

308,975

By KD Plank LLC

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Plank Kevin A 1020 HULL STREET BALTIMORE, MD 21230	X	X	President and CEO

Signatures

By: /s/ John P. Stanton, Attorney in Fact For: Kevin A. Plank		02/08/2011
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares sold pursuant to a 10b5-1 trading plan.
(2)	Shares of Class B Common Stock automatically convert to Shares of Class A Common Stock effective immediately upon the sale of the Class B shares by the reporting person.
(3)	This transaction was executed in multiple trades at prices ranging from $59.83 to $60.55. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(4)	This transaction was executed in multiple trades at prices ranging from $61.25 to $61.77. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(5)	This transaction was executed in multiple trades at prices ranging from $61.78 to $62.77. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(6)	This transaction was executed in multiple trades at prices ranging from $62.91 to $63.88. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(7)	This transaction was executed in multiple trades at prices ranging from $63.89 to $64.88. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(8)	This transaction was executed in multiple trades at prices ranging from $63.33 to $63.42. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(9)	This transaction was executed in multiple trades at prices ranging from $63.49 to $64.48. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(10)	This transaction was executed in multiple trades at prices ranging from $64.49 to $65.48. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(11)	This transaction was executed in multiple trades at prices ranging from $65.09 to $66.09. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(12)	This transaction was executed in multiple trades at prices ranging from $66.10 to $67.10. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(13)	Class B Common Stock is convertible at any time at the option of the reporting person into shares of Class A Common Stock on a one-for-one basis, and has no expiration date.

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