United GuardianUG
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 31 institutions reported holding United Guardian Inc. (UG) in their 13F filings, down 1 from Q2 2025. 2 opened new positions and 3 sold out. The largest holders were Renaissance Technologies ($1.5M), GAMCO Investors ($1.3M) and Vanguard Group Inc. ($1.2M). 2 famous investors held it, including Mario Gabelli (0.0% of GAMCO Investors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- United Guardian Inc.
- CUSIP
- 910571108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $75K |
| Exits | 3 | $123K |
All 13F filers, Q2 2025 → Q3 2025: 11,476 shares bought and 52,594 shares sold, net −41,118 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 31 holders
| Renaissance Technologies | 0.00% | Reduce -1.7% | 184,763 | $1.5M |
| GAMCO Investors | 0.01% | No change | 159,500 | $1.3M |
| Vanguard Group Inc. | 0.00% | No change | 150,396 | $1.2M |
| Rodgers Brothers Inc. | 0.08% | Reduce -8.4% | 82,266 | $647K |
| Dimensional Fund Advisors LP | 0.00% | Add +0.8% | 77,535 | $605K |
| Teton Advisors, LLC | 0.26% | — | 53,961 | $424K |
| Parthenon LLC | 0.04% | Reduce -1.9% | 50,909 | $400K |
| Gabelli Funds LLC | 0.00% | No change | 38,000 | $299K |
| Geode Capital Management, LLC | 0.00% | Add +0.8% | 32,869 | $256K |
| UBS Group AG | 0.00% | Reduce -27.5% | 21,577 | $170K |
| Neuberger Berman Group LLC | 0.00% | Reduce -14.8% | 21,187 | $167K |
| United Capital Financial Advisors, LLC | 0.00% | No change | 20,070 | $158K |
| Northern Trust Corp. | 0.00% | Reduce -20.9% | 19,271 | $151K |
| First Manhattan Co. Llc. | 0.00% | No change | 17,062 | $134K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 13,466 | $105K |
| HighTower Advisors, LLC | 0.00% | No change | 11,000 | $86K |
| BlackRock, Inc. | 0.00% | Add +2.1% | 10,638 | $84K |
| Susquehanna International Group, LLP | 0.00% | Reduce -45.8% | 10,024 | $78K |
| Hikari Tsushin, Inc. | 0.01% | New | 9,500 | $75K |
| Essex Investment Management Co. LLC | 0.01% | No change | 7,013 | $55K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +146.7% | 1,093 | $9K |
| Wells Fargo & Company | 0.00% | No change | 1,001 | $8K |
| Bank of America Corp. | 0.00% | Reduce -3.1% | 801 | $6K |
| Principal Securities, Inc. | 0.00% | Add +197.5% | 354 | $3K |
| Osaic Holdings, Inc. | 0.00% | No change | 300 | $3K |
| FMR LLC | 0.00% | No change | 171 | $1K |
| SBI Securities Co., Ltd. | 0.00% | No change | 136 | $1K |
| Advantage Trust Co | 0.00% | No change | 100 | $786 |
| Jones Financial Companies LLLP | 0.00% | No change | 100 | $776 |
| Morgan Stanley | 0.00% | No change | 80 | $629 |
| Barclays PLC | 0.00% | New | 2 | $16 |
"% of holder's portfolio" is UG's weight in each manager's 13F, not the share of United Guardian Inc. the manager owns.