X0306 4 2018-02-15 false 0001336917 Under Armour, Inc. UA 0001698899 Stanton John Patrick 1020 HULL STREET BALTIMORE MD 21230 false true false false SVP, General Counsel Class C Common Stock 1007 I By Trust Class C Common Stock 2018-02-15 4 M false 30212 5.39 A 114261 D Class C Common Stock 2018-02-15 4 F false 17380 16.54 D 96881 D Class C Common Stock 2018-02-15 4 F false 6360 0 D 90521 D Employee Stock Option (Right to Buy) 5.39 2018-02-15 4 M false 30212 0 D 2008-02-21 2018-02-20 Class C Common Stock 30212 0 D These shares are held in a trust for the benefit of the mother-in-law of the Reporting Person. The spouse of the Reporting Person is co-trustee of the trust. The Reporting Person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose. Represents shares withheld to cover the exercise price of the options exercised and tax withholding obligations. Does not include Class A Common Stock held by the Reporting Person. John P. Stanton 2018-02-20