ZUK
ZAKŁADY URZĄDZEŃ KOTŁOWYCH STĄPORKÓW
GPW
LISTED
Shareholders
as of September 20, 2026 · source: notifications under Art. 69 of the Offering Act · 8 entities above 5% · stakes add up to more than 100% — the notifications come from different dates and may overlap
FREE FLOAT
The portion of capital not covered by notifications above 5% — its composition is not publicly known.
-150.01%
-9,268,579 shares
LARGEST STAKE
100%
BORO Sp. z o.o. S.K.A.
TOP 3 CONCENTRATION
Combined stake of the three largest shareholders above the 5% threshold.
206.23%
3 entities above 5%
LATEST CHANGE
June 25, 2026
ESPI (wykaz z WZ)
Ownership structure
stakes per latest notifications · share count normalized to 6,178,600 shares outstanding
SHAREHOLDERS ≥5% 250%
FREE FLOAT -150%
HOLDER
STAKE
SHARES
VOTES
NOTIFICATION
BORO Sp. z o.o. S.K.A.
100%
6,178,600
100%
August 25, 2026
BORO spółka z ograniczoną odpowiedzialnością spółka komandytowo-akcyjna
72.93%
4,505,971
—
March 25, 2026
FRAM FUNDACJA RODZINNA
33.3%
2,057,536
33.3%
July 10, 2026
Stanisław Juliusz Pargieła
10.61%
655,505
10.61%
August 16, 2026
Andrzej Piotr Pargieła
10.49%
648,138
10.49%
August 16, 2026
Artur Mączyński
9.69%
598,757
9.69%
August 16, 2026
Lech Jan Pasturczak
7.73%
477,482
7.73%
August 16, 2026
Zakłady Urządzeń Kotłowych Stąporków S.A.
5.26%
325,190
5.26%
March 20, 2026
Other
-150.01%
-9,268,579
-77.08%
—
BORO Sp. z o.o. S.K.A.
100%
6,178,600 shares · notification August 25, 2026
BORO spółka z ograniczoną odpowiedzialnością spółka komandytowo-akcyjna
72.93%
4,505,971 shares · notification March 25, 2026
FRAM FUNDACJA RODZINNA
33.3%
2,057,536 shares · notification July 10, 2026
Stanisław Juliusz Pargieła
10.61%
655,505 shares · notification August 16, 2026
Andrzej Piotr Pargieła
10.49%
648,138 shares · notification August 16, 2026
Artur Mączyński
9.69%
598,757 shares · notification August 16, 2026
Lech Jan Pasturczak
7.73%
477,482 shares · notification August 16, 2026
Zakłady Urządzeń Kotłowych Stąporków S.A.
5.26%
325,190 shares · notification March 20, 2026
Other
-150.01%
-9,268,579 shares · composition undisclosed
Notification history
crossings above/below the 5% / 10% / 20% thresholdsJune 25, 2026
ESPI (wykaz z WZ) — updated reading
FRAM Fundacja Rodzinna:
33.65% → 31.64%
→
March 02, 2026
ESPI (wykaz z WZ) — baseline reading
FRAM Fundacja Rodzinna:
new in the registry, 33.65%
→
Capital and votes
Number of shares
6,178,600
ISIN
PLSTPRK00019
Sector
wyroby metalowe
Market
GPW
Country
PL
Listing date
August 01, 2007
Where this data comes from
The structure is built from notifications shareholders file after crossing 5%, 10%, 15%, 20%, 25%, 33%, 50%, 75% and 90% of votes.
Below 5% there is no disclosure obligation, so the remaining capital is shown collectively as free float — its composition is not publicly known.
Stakes are not updated in real time. The date next to each entity is its last notification date, not today's date.