United Guardian Inc (UG) Institutional Ownership

Ownership Summary

According to SEC filings for the period ending September 2025, United Guardian Inc (NASDAQ:UG) is held by 31 institutional firms.

• Institutional ownership in United Guardian edged down to 21.7% in September 2025, compared to 22.2% in June 2025.
• Institutional share ownership changed by 2.93% QoQ, while the number of institutional owners saw no change YoY.
• A review of institutional activity for United Guardian shows 7 of 31 filers increasing their positions, while 9 reduced their stake, and 15 remained unchanged.
• The aggregate institutional position in United Guardian now stands at 995.14K shares as of September 2025, after investors increased their holdings (up by 28.30K shares quarter on quarter which is down 10.41K shares year over year).
• As of September 30, 2025, RENAISSANCE TECHNOLOGIES LLC held United Guardian's largest shareholding position with over 184.76K shares, representing 4.02% of total outstanding shares.
• Among the most significant buyers of United Guardian during September 2025 were Teton Advisors, LLC (53.96K), Hikari Tsushin, Inc. (9.50K), Tower Research Capital LLC (TRC) (650), DIMENSIONAL FUND ADVISORS LP (608), GEODE CAPITAL MANAGEMENT, LLC (265).
• Leading sellers of United Guardian stock in September 2025 included SUSQUEHANNA INTERNATIONAL GROUP, LLP (8.45K), UBS Group AG (8.18K), Rodgers Brothers Inc. (7.50K), NORTHERN TRUST CORP (5.08K), Neuberger Berman Group LLC (3.69K).
• The top 10 institutional holders of United Guardian for the quarter ending September 2025 included RENAISSANCE TECHNOLOGIES LLC (184.76K), GAMCO INVESTORS, INC. ET AL (159.50K), VANGUARD GROUP INC (150.40K), Rodgers Brothers Inc. (82.27K), DIMENSIONAL FUND ADVISORS LP (77.53K), Teton Advisors, LLC (53.96K), PARTHENON LLC (50.91K), GABELLI FUNDS LLC (38.00K), GEODE CAPITAL MANAGEMENT, LLC (32.87K), UBS Group AG (21.58K).