Ultralife Corporation
Ownership
Ownership Structure
Who owns Ultralife Corporation (ULBI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 57.8% of the shares are freely tradable; institutional investors hold 73.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Visionary Wealth Advisors | 6.64 | 1,106,154 | +1.5 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 5.78 | 963,733 | -3.1 | 06/30/2026 |
| Janney Montgomery Scott LLC | 3.11 | 518,000 | +2.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.75 | 457,837 | +0.0 | 03/31/2026 |
| Truffle Hound Capital, LLC | 1.50 | 250,000 | +0.0 | 06/30/2026 |
| RBF LLC | 1.31 | 218,714 | -51.4 | 03/31/2026 |
| Renaissance Technologies Corp | 1.19 | 198,090 | -6.1 | 03/31/2026 |
| Connor Clark & Lunn Inv Mgmt Ltd | 0.93 | 155,021 | +2.2 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.04 | 339,593 | +0.0 | 07/31/2026 |
| DFA US Small Cap Value I | 1.22 | 202,962 | +0.0 | 07/31/2026 |
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.