Under Armour, Inc. (UAA) Institutional Ownership

Ownership Summary

Recent 13F filings as of September 2025 show that 363 institutional investors hold a position in Under Armour, Inc. (NYSE:UAA).

• The percentage of Under Armour owned by institutions changed from 74.3% in June 2025 to 41.3% in September 2025, marking a slight down trend.
• Institutional share ownership changed by -1.32% QoQ, while the number of institutional owners saw a decrease of 5.71% YoY.
• The latest 13F cycle for Under Armour reveals that of 363 total investors, 169 funds grew their exposure, whereas 113 reduced theirs and 81 made no changes.
• The aggregate institutional position in Under Armour now stands at 172.26Mn shares as of September 2025, after investors decreased their holdings (down by 2.31Mn shares quarter on quarter which is up 3.83Mn shares year over year).
• BlackRock, Inc.'s holding of 15.86Mn shares as of September 30, 2025 makes it the primary institutional investor in Under Armour, owning 3.80% of the stock.
• Among the most significant buyers of Under Armour during September 2025 were MARSHALL WACE, LLP (3.35Mn), CITADEL ADVISORS LLC (2.32Mn), WHITEBOX ADVISORS LLC (2.25Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (2.21Mn), D. E. Shaw & Co., Inc. (1.99Mn).
• Leading sellers of Under Armour stock in September 2025 included FMR LLC (23.73Mn), MILLENNIUM MANAGEMENT LLC (3.02Mn), Boston Partners (2.53Mn), AMERICAN CENTURY COMPANIES INC (1.95Mn), BNP PARIBAS FINANCIAL MARKETS (1.01Mn).
• The top 10 institutional holders of Under Armour for the quarter ending September 2025 included BlackRock, Inc. (15.86Mn), VANGUARD GROUP INC (15.42Mn), DIMENSIONAL FUND ADVISORS LP (9.61Mn), JANE STREET GROUP, LLC (7.70Mn), FIL Ltd (7.55Mn), FAIRFAX FINANCIAL HOLDINGS LTD/ CAN (6.31Mn), MARSHALL WACE, LLP (6.30Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (5.80Mn), STATE STREET CORP (5.63Mn), UBS Group AG (5.42Mn).