United-Guardian Inc
Ownership
Ownership Structure
Who owns United-Guardian Inc (UG)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 64.4% of the shares are freely tradable; institutional investors hold 20.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Renaissance Technologies Corp | 3.83 | 175,766 | -5.8 | 03/31/2026 |
| Gamco Investors, Inc. Et Al | 3.58 | 164,388 | +0.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 2.79 | 128,340 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 1.59 | 73,170 | +6.8 | 06/30/2026 |
| Rodgers Brothers Inc. | 1.30 | 59,600 | -6.3 | 06/30/2026 |
| Teton Advisors, LLC | 1.17 | 53,761 | +0.0 | 06/30/2026 |
| Parthenon Capital Management LLC | 1.10 | 50,636 | +0.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| 1290 VT GAMCO Small Company Value IB | 3.41 | 156,888 | +0.0 | 07/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.96 | 90,264 | +0.0 | 07/31/2026 |
| TETON Westwood Mighty Mites AAA | 1.17 | 53,761 | +0.0 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.