Ultralife
ULBI
63 hedge funds and large institutions have $38.9M invested in Ultralife in 2025 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 22 increasing their positions, 13 reducing their positions, and 12 closing their positions.
69% more repeat investments, than reductions
Existing positions increased: 22 | Existing positions reduced: 13
0.6% more ownership
Funds ownership: 33.72% → 34.31% (+0.6%)
0% more funds holding
Funds holding: 63 → 63 (0)
0% more first-time investments, than exits
New positions opened: 12 | Existing positions closed: 12
23% less capital invested
Capital invested by funds: $50.4M → $38.9M (-$11.4M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$1.13M |
| 2 |
Russell Investments Group
London,
United Kingdom
|
+$363K |
| 3 |
LSV Asset Management
Chicago,
Illinois
|
+$342K |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$288K |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$270K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
EIM
Essex Investment Management
Boston,
Massachusetts
|
-$2.15M |
| 2 |
LCM
Legato Capital Management
San Francisco,
California
|
-$639K |
| 3 |
Millennium Management
New York
|
-$352K |
| 4 |
YIH
Y-Intercept (HK)
Hong Kong
|
-$259K |
| 5 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$252K |
ULBI Hedge Fund Activity: Q3 2025 in Review
63 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Ultralife (ULBI) for Q3 2025, worth a combined $38.9M — down 23% from $50.4M a quarter earlier.
Fund positioning in ULBI was balanced in Q3 2025: 12 funds opened new positions, 12 closed out, 22 added to existing stakes and 13 trimmed.
The largest buyer was Arrowstreet Capital, adding an estimated $1.13M. The largest seller was Essex Investment Management, exiting entirely with an estimated $2.15M sold.
- 63 institutional investors held Ultralife (ULBI) as of Q3 2025, unchanged from Q2 2025.
- Funds reported $38.9M of Ultralife stock for Q3 2025, down 23% quarter-over-quarter.
- 12 funds opened new Ultralife positions in Q3 2025 and 12 closed out, a net change of 0 holders.
- The largest Ultralife buyer in Q3 2025 was Arrowstreet Capital, an estimated $1.13M added.
- The largest Ultralife seller in Q3 2025 was Essex Investment Management, an estimated $2.15M sold.
Based on aggregated 13F filings for Q3 2025.