Mabion was created by four local pharmaceutical companies – most of whom are the largest shareholders to this day.

Shareholding structure

* Mr. Maciej Wieczorek holds 100% of the share capital of Glatton Sp. z o.o. and indirectly, through Glatton Sp. z o.o., 55.8% of the share capital of Celon Pharma S.A. and 65.4% of the total number of votes in Celon Pharma S.A.(based on the interim report of Celon Pharma S.A. for Q1 2025).
No.	Shareholder	Number of shares	Number of votes	Share in total number of votes	Participation in the share capital
1.	Twiti Investments Limited	1 917 982	2 512 282	11,87%	14,17%
2.	Maciej Wieczorek through:*	1 717 485	2 210 335	10,63%	12,47%
	Glatton Sp. z o.o.	1 097 135	1 097 135	6,79%	6,19%
	Celon Pharma S.A.	620 350	1 113 200	3,84%	6,28%
3.	Polfarmex S.A.	1 474 346	1 957 196	9,12%	11,04%
4.	Other	11 052 513	11 052 513	68,38%	62,33%
	Total	16 162 326	17 732 326	100%	100%