BMC
BUMECH
GPW
LISTED
Shareholders
as of September 20, 2026 · source: notifications under Art. 69 of the Offering Act · 3 entities above 5%
FREE FLOAT
The portion of capital not covered by notifications above 5% — its composition is not publicly known.
42.16%
6,324,185 shares
LARGEST STAKE
23.93%
Marcin Sutkowski
TOP 3 CONCENTRATION
Combined stake of the three largest shareholders above the 5% threshold.
57.84%
3 entities above 5%
LATEST CHANGE
August 25, 2026
ESPI (wykaz z WZ)
Ownership structure
stakes per latest notifications · share count normalized to 15,000,000 shares outstanding
SHAREHOLDERS ≥5% 57.84%
FREE FLOAT 42.16%
HOLDER
STAKE
SHARES
VOTES
NOTIFICATION
Marcin Sutkowski
23.93%
3,589,089
23.89%
September 19, 2026
MS FUNDACJA RODZINNA W ORGANIZACJI
23.73%
3,560,000
23.73%
September 09, 2026
Zdzisław Gdaniec
10.18%
1,526,726
10.18%
August 16, 2026
Other
42.16%
6,324,185
42.2%
—
Marcin Sutkowski
23.93%
3,589,089 shares · notification September 19, 2026
MS FUNDACJA RODZINNA W ORGANIZACJI
23.73%
3,560,000 shares · notification September 09, 2026
Zdzisław Gdaniec
10.18%
1,526,726 shares · notification August 16, 2026
Other
42.16%
6,324,185 shares · composition undisclosed
Notification history
crossings above/below the 5% / 10% / 20% thresholdsAugust 25, 2026
ESPI (wykaz z WZ) — baseline reading
MS Fundacja Rodzinna w organizacji:
new in the registry, 28.00%
→
June 30, 2026
ESPI (wykaz z WZ) — updated reading
Zdzisław Gdaniec:
10.15% → 10.17%
→
Capital and votes
Number of shares
15,000,000
ISIN
PLBMECH00012
Sector
urządzenia mechaniczne
Market
GPW
Country
PL
Listing date
February 01, 2009
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.