Ultralife Corporation
DE ˙ DB ˙ US9038991025
5,65 € ↓ -0,25 (-4,24%)
2026-06-05
DEL PRIS
SecurityDE:ULB / Ultralife Corporation
InstitutionPerritt Capital Management Inc
Latest Disclosed Ownership70,000 shares
Latest Disclosed Value $ 400,400
Perritt Capital Management Inc reports 7.69% increase in ownership of ULB / Ultralife Corporation

On February 17, 2026 - Perritt Capital Management Inc filed a 13F-HR form disclosing ownership of 70,000 shares of Ultralife Corporation (DE:ULB) valued at $329,000 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 17, 2025 disclosing 65,000 shares of Ultralife Corporation. This represents a change in shares of 7.69% during the quarter. The current value of the position is $395,500 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-17 2025-12-31 13F ULTRALIFE BATTERIES COM 903899102 70,000 5,000 7.69 400 -9.71 0.6694
2025-11-17 2025-09-30 13F ULTRALIFE BATTERIES COM 903899102 65,000 25,000 62.50 443 23.40 0.2101
2025-08-14 2025-06-30 13F/A-1 ULTRALIFE BATTERIES COM 903899102 40,000 10,000 33.33 359 122.98 0.1854
2025-08-12 2025-06-30 13F ULTRALIFE BATTERIES COM 903899102 359,200 329,200 359 0.1854
2025-05-13 2025-03-31 13F ULTRALIFE BATTERIES COM 903899102 30,000 0 0.00 161 -27.80 0.0890
2025-02-12 2024-12-31 13F ULTRALIFE BATTERIES COM 903899102 30,000 15,000 100.00 224 65.19 0.1162
2024-11-12 2024-09-30 13F ULTRALIFE BATTERIES COM 903899102 15,000 0 0.00 136 -15.09 0.0697
2024-08-07 2024-06-30 13F ULTRALIFE BATTERIES COM 903899102 15,000 0 0.00 159 20.45 0.0870
2024-05-15 2024-03-31 13F ULTRALIFE BATTERIES COM 903899102 15,000 3,000 25.00 132 62.96 0.0714
2024-02-14 2023-12-31 13F ULTRALIFE BATTERIES COM 903899102 12,000 12,000 82 0.0458
2017-08-14 2017-06-30 13F ULTRALIFE COM 903899102 0 -50,000 -100.00 0 -100.00
2017-05-15 2017-03-31 13F ULTRALIFE COM 903899102 50,000 0 0.00 273 10.08 0.0694
2017-02-14 2016-12-31 13F ULTRALIFE COM 903899102 50,000 0 0.00 248 20.39 0.0601
2016-11-14 2016-09-30 13F ULTRALIFE COM 903899102 50,000 0 0.00 206 -17.93 0.0514
2016-08-15 2016-06-30 13F ULTRALIFE COM 903899102 50,000 0 0.00 251 -1.95 0.0662
2016-05-16 2016-03-31 13F ULTRALIFE COM 903899102 50,000 0 0.00 256 -20.74 0.0636
2016-02-12 2015-12-31 13F ULTRALIFE COM 903899102 50,000 -30,000 -37.50 323 -31.42 0.0700
2015-11-16 2015-09-30 13F ULTRALIFE CORP COM COM 903899102 80,000 -40,000 -33.33 471 -6.36 0.0988
2015-08-14 2015-06-30 13F ULTRALIFE COM 903899102 120,000 -3,178 -2.58 503 4.36 0.0897
2015-05-15 2015-03-31 13F ULTRALIFE COM 903899102 123,178 0 0.00 482 24.87 0.0851
2015-02-17 2014-12-31 13F Ultralife COM 903899102 123,178 0 0.00 386 -3.26 0.0706
2014-11-14 2014-09-30 13F Ultralife COM 903899102 123,178 -66,657 -35.11 399 -45.27 0.0742
2014-08-13 2014-06-30 13F Ultralife COM 903899102 189,835 0 0.00 729 -9.67 0.1231
2014-05-15 2014-03-31 13F Ultralife COM 903899102 189,835 89,835 89.83 807 127.32 0.1291
2014-03-21 2013-12-31 13F/A-1 Ultralife COM 903899102 100,000 100,000 355 0.0588
2014-02-14 2013-12-31 13F Ultralife COM 903899102 100,000 355
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.