Shareholders Holding at Least 5% of the Votes at the Annual General Meeting of the Company on 25 May 2026

Date: 25 May 2026

Subject: Shareholders Holding at Least 5% of the Votes at the Annual General Meeting of the Company on 25 May 2026

Legal basis: Article 70(3) of the Act on Public Offering – AGM list of shareholders holding more than 5%

Text of the report:

The Management Board of Diagnostyka S.A., with its registered office in Kraków (the “Company”), hereby announces that at the Annual General Meeting of the Company convened for 25 May 2026, the shareholders holding at least 5% of the total number of votes were:

• Jakub Swadźba, who was entitled to voting rights attached to 3,186,189 shares carrying 6,372,378 votes, representing approximately 15.63% of the votes represented at the Annual General Meeting and 12.83% of the total number of votes;
• ACER CAPITAL PARTNERS SCSP, which was entitled to voting rights attached to 6,372,278 shares carrying 12,744,556 votes, representing approximately 31.25% of the votes represented at the Annual General Meeting and 25.65% of the total number of votes;
• ACACIA CAPITAL PARTNERS SCSP, which was entitled to voting rights attached to 6,372,278 shares carrying 12,744,556 votes, representing approximately 31.25% of the votes represented at the Annual General Meeting and 25.65% of the total number of votes;
• Nationale-Nederlanden Otwarty Fundusz Emerytalny, which was entitled to voting rights attached to 2,345,515 shares carrying 2,345,515 votes, representing approximately 5.75% of the votes represented at the Annual General Meeting and 4.72% of the total number of votes.

For the Company:

Jakub Swadźba – President of the Management Board

Marta Rogalska-Kupiec – Vice President of the Management Board