Under Armour, Inc. — Director's Dealing 2011

Aug 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Under Armour, Inc. (UA)
CIK: 0001336917
Period of Report: 2011-07-29

Reporting Person: Plank J Scott (EVP of Business Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-07-29	Class A Common Stock	S	2127	$73.1	Disposed	1572943	Direct
2011-07-29	Class A Common Stock	S	7646	$73.93	Disposed	1565297	Direct
2011-07-29	Class A Common Stock	S	1687	$74.55	Disposed	1563610	Direct
2011-08-01	Class A Common Stock	S	8159	$72.59	Disposed	1555451	Direct
2011-08-01	Class A Common Stock	S	2788	$73.58	Disposed	1552663	Direct
2011-08-01	Class A Common Stock	S	440	$74.59	Disposed	1552223	Direct
2011-08-01	Class A Common Stock	S	73	$75.39	Disposed	1552150	Direct
2011-08-02	Class A Common Stock	S	3613	$69.71	Disposed	1548537	Direct
2011-08-02	Class A Common Stock	S	2201	$70.49	Disposed	1546336	Direct
2011-08-02	Class A Common Stock	S	1980	$71.52	Disposed	1544356	Direct
2011-08-02	Class A Common Stock	S	1833	$72.57	Disposed	1542523	Direct
2011-08-02	Class A Common Stock	S	1833	$73.28	Disposed	1540690	Direct
2011-07-29	Class A Common Stock	S	773	$73.1	Disposed	127153	Indirect
2011-07-29	Class A Common Stock	S	2779	$73.93	Disposed	124374	Indirect
2011-07-29	Class A Common Stock	S	613	$74.55	Disposed	123761	Indirect
2011-08-01	Class A Common Stock	S	2966	$72.59	Disposed	120795	Indirect
2011-08-01	Class A Common Stock	S	1012	$73.58	Disposed	119783	Indirect
2011-08-01	Class A Common Stock	S	160	$74.59	Disposed	119623	Indirect
2011-08-01	Class A Common Stock	S	27	$75.39	Disposed	119596	Indirect
2011-08-02	Class A Common Stock	S	1312	$69.71	Disposed	118284	Indirect
2011-08-02	Class A Common Stock	S	799	$70.49	Disposed	117485	Indirect
2011-08-02	Class A Common Stock	S	720	$71.52	Disposed	116765	Indirect
2011-08-02	Class A Common Stock	S	667	$72.57	Disposed	116098	Indirect
2011-08-02	Class A Common Stock	S	667	$73.28	Disposed	115431	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	506346	Indirect
Class A Common Stock	100000	Indirect

Footnotes

F1: Shares sold pursuant to a 10b5-1 trading plan.

F2: This transaction was executed in multiple trades at prices ranging from $72.40 to $73.39. 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.

F3: This transaction was executed in multiple trades at prices ranging from $73.40 to $74.38. 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.

F4: This transaction was executed in multiple trades at prices ranging from $74.40 to $74.68. 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.

F5: This transaction was executed in multiple trades at prices ranging from $72.22 to $73.17. 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.

F6: This transaction was executed in multiple trades at prices ranging from $73.23 to $74.14. 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.

F7: This transaction was executed in multiple trades at prices ranging from $74.30 to $75.15. 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.

F8: This transaction was executed in multiple trades at prices ranging from $69.05 to $70.02. 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.

F9: This transaction was executed in multiple trades at prices ranging from $70.08 to $71.05. 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.

F10: This transaction was executed in multiple trades at prices ranging from $71.08 to $72.00. 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.

F11: This transaction was executed in multiple trades at prices ranging from $72.08 to $73.00. 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.

F12: This transaction was executed in multiple trades at prices ranging from $73.08 to $73.47. 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.