Under Armour, Inc. — Director's Dealing 2012

Feb 3, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Under Armour, Inc. (UA)
CIK: 0001336917
Period of Report: 2012-02-01

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-01	Class A Common Stock	S	6219	$79.13	Disposed	1406351	Direct
2012-02-01	Class A Common Stock	S	5781	$79.74	Disposed	1400570	Direct
2012-02-02	Class A Common Stock	S	9692	$77.61	Disposed	1390878	Direct
2012-02-02	Class A Common Stock	S	2308	$78.45	Disposed	1388570	Direct
2012-02-03	Class A Common Stock	S	769	$78.71	Disposed	1387801	Direct
2012-02-03	Class A Common Stock	S	9385	$79.78	Disposed	1378416	Direct
2012-02-03	Class A Common Stock	S	1846	$80.4	Disposed	1376570	Direct
2012-02-01	Class A Common Stock	S	2047	$79.11	Disposed	75879	Indirect
2012-02-01	Class A Common Stock	S	1200	$79.78	Disposed	74679	Indirect
2012-02-02	Class A Common Stock	S	2947	$77.61	Disposed	71732	Indirect
2012-02-02	Class A Common Stock	S	300	$78.37	Disposed	71432	Indirect
2012-02-03	Class A Common Stock	S	2000	$79.61	Disposed	69432	Indirect
2012-02-03	Class A Common Stock	S	1247	$80.35	Disposed	68185	Indirect
2012-02-01	Class A Common Stock	S	1243	$79.13	Disposed	505103	Indirect
2012-02-01	Class A Common Stock	S	1157	$79.74	Disposed	503946	Indirect
2012-02-02	Class A Common Stock	S	1939	$77.61	Disposed	502007	Indirect
2012-02-02	Class A Common Stock	S	461	$78.45	Disposed	501546	Indirect
2012-02-03	Class A Common Stock	S	154	$78.71	Disposed	501392	Indirect
2012-02-03	Class A Common Stock	S	1877	$79.78	Disposed	499515	Indirect
2012-02-03	Class A Common Stock	S	369	$80.4	Disposed	499146	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
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 $78.46 to $79.45. 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 $79.46 to $79.94. 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 $77.18 to $78.17. 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.

F5: This transaction was executed in multiple trades at prices ranging from $78.20 to $78.96. 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 $78.15 to $79.12. 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 $79.34 to $80.32. 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 $80.34 to $80.44. 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 $78.50 to $79.44. 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 $79.50 to $79.92. 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 $77.18 to $78.15. 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.

F12: This transaction was executed in multiple trades at prices ranging from $78.25 to $78.50. 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.

F13: This transaction was executed in multiple trades at prices ranging from $79.08 to $79.97. 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.

F14: This transaction was executed in multiple trades at prices ranging from $80.26 to $80.45. 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.