S2B
SYN2BIO
GPW
LISTED
Shareholders
as of June 30, 2026 · source: notifications under Art. 69 of the Offering Act · 3 entities above 5% of votes
FREE FLOAT
The portion of capital not covered by notifications above 5% of votes — its composition is not publicly known.
53.51%
4,670,430 shares
LARGEST STAKE
23.45%
Melhus Company Ltd
TOP 3 CONCENTRATION
Combined stake of the three largest shareholders above the 5% vote threshold.
46.49%
3 entities above 5% of votes
LATEST CHANGE
May 19, 2026
ESPI (wykaz z WZ)
Ownership structure
stakes per latest notifications · shares outstanding: 8,729,129 (report, Jun 30, 2026)
SHAREHOLDERS ≥5% OF VOTES 46.49%
FREE FLOAT 53.51%
HOLDER
STAKE
SHARES
VOTES
NOTIFICATION
Other
53.51%
4,670,430
53.51%
—
Melhus Company Ltd
23.45%
2,047,380 shares
NOTIFICATION: Jun 30, 2026
Książek Holding Sp. z o.o.
15.76%
1,376,143 shares
NOTIFICATION: Jun 30, 2026
Nationale-Nederlanden PTE SA
7.28%
635,176 shares
NOTIFICATION: Jun 30, 2026
Other
53.51%
4,670,430 shares
composition undisclosed
Announcement history
crossings above/below the 5% / 10% / 20% thresholdsMay 19, 2026
ESPI (wykaz z WZ) — baseline reading
MELHUS COMPANY LTD:
new in the registry, 23.45%
→
Capital and votes
Number of shares
8,729,129
ISIN
PLSNBIO00013
Sector
Biotechnologia
Market
GPW
Country
PL
Listing date
April 01, 2026
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.
The share count behind every percentage comes from the newest (by as-of date) periodic report or art. 69 notification — not from the company's GPW/NewConnect profile.