United GuardianUG
13F holders, Q1 2025 (March 31)At the end of Q1 2025, 31 institutions reported holding United Guardian Inc. (UG) in their 13F filings, down 2 from Q4 2024. 1 opened new positions and 3 sold out. The largest holders were Renaissance Technologies ($1.7M), GAMCO Investors ($1.4M) and Vanguard Group Inc. ($1.4M). 3 famous investors held it, including Mario Gabelli (0.0% of GAMCO Investors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- United Guardian Inc.
- CUSIP
- 910571108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $98K |
| Exits | 3 | $135K |
All 13F filers, Q4 2024 → Q1 2025: 30,599 shares bought and 30,303 shares sold, net +296 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 31 holders
| Renaissance Technologies | 0.00% | Reduce -0.6% | 188,963 | $1.7M |
| GAMCO Investors | 0.02% | Reduce -0.6% | 157,500 | $1.4M |
| Vanguard Group Inc. | 0.00% | Add +9.5% | 150,396 | $1.4M |
| Rodgers Brothers Inc. | 0.11% | Reduce -1.8% | 93,627 | $842K |
| Dimensional Fund Advisors LP | 0.00% | Add +2.5% | 76,877 | $691K |
| Teton Advisors, Inc. | 0.31% | No change | 54,161 | $487K |
| Parthenon LLC | 0.06% | No change | 51,909 | $467K |
| Gabelli Funds LLC | 0.00% | No change | 38,000 | $342K |
| Geode Capital Management, LLC | 0.00% | Add +5.1% | 32,848 | $295K |
| Neuberger Berman Group LLC | 0.00% | Reduce -16.9% | 30,951 | $278K |
| UBS Group AG | 0.00% | Add +14.4% | 25,030 | $225K |
| Northern Trust Corp. | 0.00% | Reduce -5.3% | 24,164 | $217K |
| United Capital Financial Advisors, LLC | 0.00% | No change | 20,070 | $180K |
| First Manhattan Co. Llc. | 0.00% | No change | 17,062 | $153K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 13,466 | $121K |
| BlackRock, Inc. | 0.00% | Reduce -4.7% | 11,286 | $101K |
| HighTower Advisors, LLC | 0.00% | No change | 11,000 | $99K |
| Susquehanna International Group, LLP | 0.00% | New | 10,933 | $98K |
| Citadel Advisors | 0.00% | Reduce -3.9% | 10,927 | $98K |
| Essex Investment Management Co. LLC | 0.01% | Reduce -0.1% | 7,095 | $64K |
| Hillsdale Investment Management Inc. | 0.00% | No change | 1,714 | $15K |
| Wells Fargo & Company | 0.00% | Reduce -77.8% | 1,001 | $9K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -9.3% | 421 | $4K |
| Osaic Holdings, Inc. | 0.00% | No change | 300 | $3K |
| Morgan Stanley | 0.00% | Reduce -0.8% | 245 | $2K |
| FMR LLC | 0.00% | Reduce -34.5% | 171 | $2K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -0.8% | 116 | $1K |
| Jones Financial Companies LLLP | 0.00% | No change | 100 | $915 |
| Bank of America Corp. | 0.00% | Add +4.2% | 25 | $225 |
| Principal Securities, Inc. | 0.00% | No change | 7 | $67 |
| JPMorgan Chase & Co. | 0.00% | Reduce -14.3% | 6 | $54 |
"% of holder's portfolio" is UG's weight in each manager's 13F, not the share of United Guardian Inc. the manager owns.