ERB
ERBUD
GPW
LISTED
Shareholders
as of September 20, 2026 · source: notifications under Art. 69 of the Offering Act · 5 entities above 5%
FREE FLOAT
The portion of capital not covered by notifications above 5% — its composition is not publicly known.
23.82%
2,841,325 shares
LARGEST STAKE
32.31%
Wollf&Mueller Baubeteiligungen GmbH & Co. KG
TOP 3 CONCENTRATION
Combined stake of the three largest shareholders above the 5% threshold.
63.77%
3 entities above 5%
LATEST CHANGE
May 19, 2026
ESPI (wykaz z WZ)
Ownership structure
stakes per latest notifications · share count normalized to 11,929,836 shares outstanding
SHAREHOLDERS ≥5% 76.18%
FREE FLOAT 23.82%
HOLDER
STAKE
SHARES
VOTES
NOTIFICATION
Wollf&Mueller Baubeteiligungen GmbH & Co. KG
32.31%
3,854,837
32.31%
August 16, 2026
Dariusz Grzeszczak
21.4%
2,553,460
21.4%
August 16, 2026
NATIONALE-NEDERLANDEN Powszechne Towarzystwo Emerytalne S.A.
10.06%
1,200,000
10.06%
August 16, 2026
Powszechne Towarzystwo Emerytalne Allianz Polska S.A.
6.41%
764,935
6.41%
August 16, 2026
PKO BP BANKOWY Powszechne Towarzystwo Emerytalne SA
6%
715,279
6%
August 16, 2026
Other
23.82%
2,841,325
23.82%
—
Wollf&Mueller Baubeteiligungen GmbH & Co. KG
32.31%
3,854,837 shares · notification August 16, 2026
Dariusz Grzeszczak
21.4%
2,553,460 shares · notification August 16, 2026
NATIONALE-NEDERLANDEN Powszechne Towarzystwo Emerytalne S.A.
10.06%
1,200,000 shares · notification August 16, 2026
Powszechne Towarzystwo Emerytalne Allianz Polska S.A.
6.41%
764,935 shares · notification August 16, 2026
PKO BP BANKOWY Powszechne Towarzystwo Emerytalne SA
6%
715,279 shares · notification August 16, 2026
Other
23.82%
2,841,325 shares · composition undisclosed
Notification history
crossings above/below the 5% / 10% / 20% thresholdsMay 19, 2026
ESPI (wykaz z WZ) — baseline reading
Wolff & Müller Baubeteiligungen GmbH & Co. KG, w tym Wolff & Müller Holding GmbH & Co. KG:
new in the registry, 44.47%
→
Capital and votes
Number of shares
11,929,836
ISIN
PLERBUD00012
Sector
budownictwo przemysłowe
Market
GPW
Country
PL
Listing date
June 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.