MRB
MIRBUD
GPW
LISTED
Shareholders
as of September 20, 2026 · source: notifications under Art. 69 of the Offering Act · 4 entities above 5%
FREE FLOAT
The portion of capital not covered by notifications above 5% — its composition is not publicly known.
41.64%
45,846,664 shares
LARGEST STAKE
37.95%
Jerzy Mirgos
TOP 3 CONCENTRATION
Combined stake of the three largest shareholders above the 5% threshold.
53.28%
3 entities above 5%
LATEST CHANGE
June 19, 2026
ESPI (wykaz z WZ)
Ownership structure
stakes per latest notifications · share count normalized to 110,093,000 shares outstanding
SHAREHOLDERS ≥5% 58.36%
FREE FLOAT 41.64%
HOLDER
STAKE
SHARES
VOTES
NOTIFICATION
Jerzy Mirgos
37.95%
41,785,000
37.95%
August 16, 2026
NATIONALE-NEDERLANDEN Powszechne Towarzystwo Emerytalne S.A.
10%
11,006,488
10%
August 16, 2026
Powszechne Towarzystwo Emerytalne PZU S.A.
5.33%
5,865,367
5.33%
August 16, 2026
Towarzystwo Funduszy Inwestycyjnych PZU Spółka Akcyjna
5.08%
5,589,481
5.08%
September 19, 2026
Other
41.64%
45,846,664
41.64%
—
Jerzy Mirgos
37.95%
41,785,000 shares · notification August 16, 2026
NATIONALE-NEDERLANDEN Powszechne Towarzystwo Emerytalne S.A.
10%
11,006,488 shares · notification August 16, 2026
Powszechne Towarzystwo Emerytalne PZU S.A.
5.33%
5,865,367 shares · notification August 16, 2026
Towarzystwo Funduszy Inwestycyjnych PZU Spółka Akcyjna
5.08%
5,589,481 shares · notification September 19, 2026
Other
41.64%
45,846,664 shares · composition undisclosed
Notification history
crossings above/below the 5% / 10% / 20% thresholdsJune 19, 2026
ESPI (wykaz z WZ) — baseline reading
JERZY MIRGOS:
new in the registry, 37.95%
→
Capital and votes
Number of shares
110,093,000
ISIN
PLMRBUD00015
Sector
budownictwo ogólne
Market
GPW
Country
PL
Listing date
December 01, 2008
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.