Under Armour, Inc. (UAA) Institutional Ownership

Ownership Summary

Under Armour, Inc. (NYSE:UAA) has 344 institutional investors that have filed 13F reports for the period ending December 2025.

• These investors held 47.1% of outstanding shares in December 2025, up from 39.1% in September 2025.
• They increased total shares held in Under Armour by 37.16% from the prior quarter, while the number of investors in UAA decreased 10.42% year over year.
• Among the 344 funds, 177 bought more Under Armour shares, 95 sold down, and 72 held their ground.
• Altogether, these fund groups held 199.92Mn shares in UAA by December 2025, up by 54.16Mn shares quarter on quarter, and up 3.13Mn shares year over year.
• Fairfax Financial Holdings Ltd/ Can leads ownership in UAA with 43.0Mn shares as of December 31, 2025, equal to 10.12% of outstanding shares.
• The most significant purchases of UAA for the quarter ending December 2025 came from VANGUARD PORTFOLIO MANAGEMENT LLC (10.84Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.03Mn), HRT FINANCIAL LP (4.03Mn), STATE OF WISCONSIN INVESTMENT BOARD (2.75Mn), Woodline Partners LP (2.05Mn).
• Top sellers of UAA stock for the quarter ending December 2025 included SUSQUEHANNA INTERNATIONAL GROUP, LLP (4.22Mn), Squarepoint Ops LLC (1.42Mn), Ovata Capital Management Ltd (1.4Mn), MARSHALL WACE, LLP (1.33Mn), FIRST TRUST ADVISORS LP (1.12Mn).
• Business Quant data shows the 10 biggest positions in Under Armour as of December 2025 are held by Fairfax Financial Holdings Ltd/ Can (43.0Mn), BlackRock, Inc. (20.86Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (10.84Mn), DIMENSIONAL FUND ADVISORS LP (8.53Mn), UBS Group AG (8.07Mn), CHARLES SCHWAB INVESTMENT MANAGEMENT INC (6.17Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.03Mn), State Street Corp (6.01Mn), D. E. Shaw & Co., Inc. (5.75Mn), JANE STREET GROUP, LLC (5.01Mn).