United GuardianUG
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 26 institutions reported holding United Guardian Inc. (UG) in their 13F filings, down 5 from Q3 2025. 1 opened new positions and 6 sold out. The largest holders were Renaissance Technologies ($1.1M), GAMCO Investors ($1.0M) and Vanguard Group Inc. ($926K). 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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $20K |
| Exits | 6 | $211K |
All 13F filers, Q3 2025 → Q4 2025: 15,780 shares bought and 70,971 shares sold, net −55,191 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 26 holders
| Renaissance Technologies | 0.00% | Add +1.0% | 186,645 | $1.1M |
| GAMCO Investors | 0.01% | Add +1.9% | 162,500 | $1.0M |
| Vanguard Group Inc. | 0.00% | No change | 150,396 | $926K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -3.3% | 74,945 | $462K |
| Rodgers Brothers Inc. | 0.05% | Reduce -10.2% | 73,850 | $455K |
| Teton Advisors, LLC | 0.23% | Reduce -0.4% | 53,761 | $331K |
| Parthenon LLC | 0.03% | Reduce -0.5% | 50,636 | $312K |
| Gabelli Funds LLC | 0.00% | No change | 38,000 | $234K |
| Geode Capital Management, LLC | 0.00% | Add +8.2% | 35,560 | $219K |
| United Capital Financial Advisors, LLC | 0.00% | No change | 20,070 | $124K |
| First Manhattan Co. Llc. | 0.00% | No change | 17,062 | $105K |
| Susquehanna International Group, LLP | 0.00% | Add +45.5% | 14,583 | $90K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 13,466 | $83K |
| HighTower Advisors, LLC | 0.00% | No change | 11,000 | $68K |
| BlackRock, Inc. | 0.00% | Add +3.0% | 10,962 | $68K |
| Neuberger Berman Group LLC | 0.00% | Reduce -51.1% | 10,355 | $64K |
| Hikari Tsushin, Inc. | 0.00% | No change | 9,500 | $59K |
| Caldwell Sutter Capital, Inc. | 0.01% | New | 3,324 | $20K |
| Wells Fargo & Company | 0.00% | No change | 1,001 | $6K |
| Bank of America Corp. | 0.00% | No change | 801 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -45.9% | 591 | $4K |
| UBS Group AG | 0.00% | Reduce -98.5% | 333 | $2K |
| Osaic Holdings, Inc. | 0.00% | No change | 300 | $2K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -1.5% | 134 | $825 |
| Jones Financial Companies LLLP | 0.00% | No change | 100 | $616 |
| Morgan Stanley | 0.00% | Reduce -1.3% | 79 | $487 |
"% of holder's portfolio" is UG's weight in each manager's 13F, not the share of United Guardian Inc. the manager owns.