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 Kevin A (Director, President and CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-01	Class A Common Stock	C	18000	—	Acquired	18100	Direct
2012-02-01	Class A Common Stock	C	22000	—	Acquired	40100	Direct
2012-02-01	Class A Common Stock	S	18000	$79.13	Disposed	22100	Direct
2012-02-01	Class A Common Stock	S	22000	$79.72	Disposed	100	Direct
2012-02-02	Class A Common Stock	C	30685	—	Acquired	30785	Direct
2012-02-02	Class A Common Stock	C	9315	—	Acquired	40100	Direct
2012-02-02	Class A Common Stock	S	30685	$77.59	Disposed	9415	Direct
2012-02-02	Class A Common Stock	S	9315	$78.44	Disposed	100	Direct
2012-02-03	Class A Common Stock	C	2640	—	Acquired	2740	Direct
2012-02-03	Class A Common Stock	C	25040	—	Acquired	27780	Direct
2012-02-03	Class A Common Stock	C	12320	—	Acquired	40100	Direct
2012-02-03	Class A Common Stock	S	2640	$78.51	Disposed	37460	Direct
2012-02-03	Class A Common Stock	S	25040	$79.64	Disposed	12420	Direct
2012-02-03	Class A Common Stock	S	12320	$80.34	Disposed	100	Direct
2012-02-01	Class A Common Stock	C	1125	—	Acquired	1125	Indirect
2012-02-01	Class A Common Stock	C	1375	—	Acquired	2500	Indirect
2012-02-01	Class A Common Stock	S	1125	$79.13	Disposed	1375	Indirect
2012-02-01	Class A Common Stock	S	1375	$79.72	Disposed	0	Indirect
2012-02-02	Class A Common Stock	C	1918	—	Acquired	1918	Indirect
2012-02-02	Class A Common Stock	C	582	—	Acquired	2500	Indirect
2012-02-02	Class A Common Stock	S	1918	$77.59	Disposed	582	Indirect
2012-02-02	Class A Common Stock	S	582	$78.44	Disposed	0	Indirect
2012-02-03	Class A Common Stock	C	165	—	Acquired	165	Indirect
2012-02-03	Class A Common Stock	C	1565	—	Acquired	1730	Indirect
2012-02-03	Class A Common Stock	C	770	—	Acquired	2500	Indirect
2012-02-03	Class A Common Stock	S	165	$78.51	Disposed	2335	Indirect
2012-02-03	Class A Common Stock	S	1565	$79.64	Disposed	770	Indirect
2012-02-03	Class A Common Stock	S	770	$80.34	Disposed	0	Indirect
2012-02-01	Class A Common Stock	C	1125	—	Acquired	1125	Indirect
2012-02-01	Class A Common Stock	C	1375	—	Acquired	2500	Indirect

Footnotes

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

F2: 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.

F3: This transaction was executed in multiple trades at prices ranging from $78.40 to $79.39. 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.

F4: This transaction was executed in multiple trades at prices ranging from $79.40 to $80.01. 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 $77.14 to $78.13. 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 $78.14 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.

F7: This transaction was executed in multiple trades at prices ranging from $78.15 to $79.14. 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.

F8: This transaction was executed in multiple trades at prices ranging from $79.15 to $80.10. 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.

F9: This transaction was executed in multiple trades at prices ranging from $80.18 to $80.51. 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.