Ultralife Corporation (ULBI) Ownership
ULBI ownership summary
as of October 18, 2026- Institutions
- 73.5% of shares outstanding
- Insiders
- 3.22% of shares outstanding
- Shares outstanding
- 16.7M
- Float
- 9.6M shares available to trade
- Short interest
- 1.04% 102K shares short
- Days to cover
- 2.23 short interest down 2.5% vs prior month
- Institutions 73.47%
- Insiders 3.22%
- Other investors 23.32%
ULBI top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Visionary Wealth Advisors | 6.66% | 1.1M | $6.7M | +3,016 (+0.3%) | June 30, 2026 |
| 2 | Dimensional Fund Advisors, Inc. | 5.78% | 964K | $5.8M | −31,113 (−3.1%) | June 30, 2026 |
| 3 | Janney Montgomery Scott LLC | 3.36% | 560K | $3.4M | +42,350 (+8.2%) | June 30, 2026 |
| 4 | Vanguard Capital Management, LLC | 2.79% | 465K | $2.8M | +6,893 (+1.5%) | June 30, 2026 |
| 5 | Truffle Hound Capital, LLC | 1.50% | 250K | $1.5M | — | June 30, 2026 |
| 6 | RBF LLC | 1.31% | 219K | $1.3M | — | June 30, 2026 |
| 7 | Renaissance Technologies Corp | 1.03% | 172K | $1.0M | −26,300 (−13.3%) | June 30, 2026 |
| 8 | Connor Clark & Lunn Inv Mgmt Ltd | 0.93% | 155K | $933,359 | +22 (+0.0%) | June 30, 2026 |
| 9 | BlackRock Inc | 0.93% | 154K | $929,524 | +8,133 (+5.6%) | June 30, 2026 |
| 10 | Arrowstreet Capital Limited Partnership | 0.76% | 127K | $763,053 | — | June 30, 2026 |
| 11 | Geode Capital Management, LLC | 0.75% | 126K | $757,172 | −1,563 (−1.2%) | June 30, 2026 |
| 12 | Teton Advisors, LLC | 0.65% | 109K | $656,180 | — | June 30, 2026 |
| 13 | Acadian Asset Management LLC | 0.50% | 84K | $504,470 | — | June 30, 2026 |
| 14 | Vanguard Fiduciary Trust Co | 0.38% | 63K | $382,246 | +430 (+0.7%) | June 30, 2026 |
| 15 | LSV Asset Management | 0.38% | 63K | $379,561 | −1,450 (−2.2%) | June 30, 2026 |
| 16 | Bridgeway Capital Management, LLC | 0.36% | 60K | $358,666 | — | June 30, 2026 |
| 17 | Ancora Advisors LLC | 0.34% | 56K | $338,137 | — | June 30, 2026 |
| 18 | Two Sigma Investments LLC | 0.31% | 51K | $307,658 | −11,119 (−17.9%) | June 30, 2026 |
| 19 | Maridea Wealth Management LLC | 0.26% | 43K | $257,102 | +42,708 (0.0%) | June 30, 2026 |
| 20 | State Street Corp | 0.25% | 42K | $255,669 | −350 (−0.8%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 104K shares and 6 cut 72K.
ULBI top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.04% | 340K | $2.0M | — | August 31, 2026 |
| 2 | DFA US Small Cap Value I | 1.22% | 203K | $1.2M | — | August 31, 2026 |
| 3 | TETON Westwood Mighty Mites AAA | 0.65% | 109K | $656,180 | — | June 30, 2026 |
| 4 | DFA US Targeted Value I | 0.55% | 91K | $549,789 | −6,530 (−6.7%) | August 31, 2026 |
| 5 | DFA US Small Cap I | 0.47% | 78K | $469,518 | — | August 31, 2026 |
| 6 | Dimensional US Targeted Value ETF | 0.42% | 70K | $424,308 | — | September 30, 2026 |
| 7 | Perritt MicroCap Opportunities Investor | 0.39% | 65K | $391,300 | — | December 31, 2025 |
| 8 | Dimensional US Small Cap Value ETF | 0.37% | 61K | $367,419 | — | September 24, 2026 |
| 9 | DFA US Micro Cap I | 0.36% | 61K | $365,817 | — | August 31, 2026 |
| 10 | Dimensional US Small Cap ETF | 0.35% | 58K | $350,177 | — | September 30, 2026 |
| 11 | Fidelity Extended Market Index | 0.33% | 55K | $328,716 | −293 (−0.5%) | August 31, 2026 |
| 12 | DFA US Core Equity 1 I | 0.28% | 47K | $282,338 | — | August 31, 2026 |
| 13 | DFA US Core Equity 2 I | 0.25% | 41K | $249,463 | — | August 31, 2026 |
| 14 | iShares Micro-Cap ETF | 0.19% | 31K | $189,618 | −217 (−0.7%) | September 30, 2026 |
| 15 | Dimensional US Core Equity 2 ETF | 0.17% | 29K | $175,050 | — | September 30, 2026 |
| 16 | EA Bridgeway Ultra-Small Company Mkt ETF | 0.16% | 27K | $162,805 | — | September 30, 2026 |
| 17 | Bridgeway Omni Small-Cap Value N | 0.13% | 21K | $125,818 | — | June 30, 2026 |
| 18 | Fidelity Total Market Index | 0.12% | 19K | $115,945 | — | August 31, 2026 |
| 19 | Bullfinch Greater Western New York | 0.10% | 17K | $104,748 | — | July 31, 2026 |
| 20 | Dimensional US Equity Market ETF | 0.10% | 17K | $102,749 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ULBI insider transactions
latest 15| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-12 | Michael Edward Manna | Buy | $6.01 | 2,000 | $12,020 |
| 2025-12-16 | Bradford T Whitmore | Buy | $5.70 | 28,588 | $162,952 |
| 2025-12-15 | Bradford T Whitmore | Buy | $5.66 | 14,882 | $84,232 |
| 2025-12-12 | Bradford T Whitmore | Buy | $5.63 | 9,530 | $53,654 |
| 2025-11-24 | W. Shaw Robert | Buy | $5.67 | 1,750 | $9,922 |
| 2025-11-19 | Michael Edward Manna | Buy | $4.97 | 2,000 | $9,940 |
| 2025-08-21 | Bradford T Whitmore | Buy | $6.63 | 29,766 | $197,349 |
| 2025-08-20 | Bradford T Whitmore | Buy | $6.57 | 13,000 | $85,410 |
| 2025-08-19 | Bradford T Whitmore | Buy | $6.56 | 15,898 | $104,291 |
| 2025-05-23 | Bradford T Whitmore | Buy | $5.41 | 11,980 | $64,812 |
| 2025-05-15 | Bradford T Whitmore | Buy | $5.72 | 2,140 | $12,241 |
| 2025-05-14 | Bradford T Whitmore | Buy | $5.47 | 16,063 | $87,865 |
| 2025-05-14 | Thomas Louis Saeli | Buy | $5.44 | 5,000 | $27,200 |
| 2025-05-13 | Bradford T Whitmore | Buy | $5.40 | 8,957 | $48,368 |
| 2025-05-13 | Michael Edward Manna | Buy | $5.29 | 3,000 | $15,870 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
ULBI shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ULBI
Institutional investors own 73.5% of Ultralife's shares and insiders 3.22%. The largest holder is Visionary Wealth Advisors with 6.66% of the shares (1.1M), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 6 reduced their stake in the latest filings. Short interest is 1.04% of the float, or 2.23 days of average trading volume. The share count fell 4.9% since 2014.
Related: ULBI analyst forecast, ULBI key metrics. See the ULBI stock overview for the latest quote and news.
ULBI ownership FAQ
Who owns the most Ultralife stock?
The largest shareholders of Ultralife are Visionary Wealth Advisors (6.66%), Dimensional Fund Advisors, Inc. (5.78%), Janney Montgomery Scott LLC (3.36%), Vanguard Capital Management, LLC (2.79%), Truffle Hound Capital, LLC (1.50%).
What percentage of Ultralife is owned by institutions?
Institutions hold 73.5% of Ultralife's shares outstanding; insiders hold 3.22%.
Which funds own Ultralife?
The largest fund holders of Ultralife are Vanguard MStar Total Stk Mkt Idx Invest (2.04%), DFA US Small Cap Value I (1.22%), TETON Westwood Mighty Mites AAA (0.65%), DFA US Targeted Value I (0.55%), DFA US Small Cap I (0.47%).
What is Ultralife's short interest?
102K shares of Ultralife were sold short, 1.04% of the float; at the average daily volume it would take 2.23 days to cover.
Are insiders buying or selling Ultralife?
Of the latest 15 reported insider transactions in Ultralife (since May 13, 2025), 15 were purchases and 0 were sales.
How many shares of Ultralife are outstanding?
Ultralife has 16.7M shares outstanding, of which 9.6M are in the public float.