Under Armour, Inc. — Director's Dealing 2012

May 10, 2012

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Under Armour, Inc. (UA)
CIK: 0001336917
Period of Report: 2012-05-02

Reporting Person: MIRCHIN MATTHEW C (SVP Global Brand & Sports Mktg)

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	9461	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (Right to Buy)	$13.71	2019-03-10	Class A Common Stock (30000)		Direct
Employee Stock Option (Right to Buy)	$24.11	2019-08-04	Class A Common Stock (15000)		Direct
Employee Stock Option (Right to Buy)	$43.65	2018-02-20	Class A Common Stock (10000)		Direct
Employee Stock Option (Right to Buy)	$45.12	2017-05-08	Class A Common Stock (15000)		Direct

Footnotes

F1: In 2009, the reporting person was granted an option to purchase shares of Common Stock, with vesting based on the Company achieving a certain combined operating income for 2009 and 2010. The Company achieved this vesting condition. Following this, the award is exercisable in two equal annual installments beginning February 15, 2011.

F2: Exercisable in five equal annual installments beginning February 21, 2009.

F3: Exercisable in five equal annual installments beginning May 8, 2008.