Shareholders holding at least 5% of votes at the Extraordinary General Meeting of the Company on 22 September 2025

Date: 22 September 2025

Subject: Shareholders holding at least 5% of votes at the Extraordinary General Meeting of the Company on 22 September 2025

Legal basis: Article 70 point 3 of the Act on Public Offering – General Meeting list above 5%

Text of the report:

The Management Board of Diagnostyka S.A., with its registered office in Kraków (the “Company”), announces that at the Extraordinary General Meeting of the Company convened for 22 September 2025, the shareholders holding at least 5% of the total number of votes were:

• Jakub Swadźba, entitled to vote from 3,186,189 shares granting 6,372,378 votes, representing approximately 14.95% of the votes present at the Extraordinary General Meeting and constituting 12.82% of the total number of votes;
• ACER CAPITAL PARTNERS SCSP, entitled to vote from 6,372,278 shares granting 12,744,556 votes, representing approximately 29.90% of the votes present at the Extraordinary General Meeting and constituting 25.65% of the total number of votes;
• ACACIA CAPITAL PARTNERS SCSP, entitled to vote from 6,372,278 shares granting 12,744,556 votes, representing approximately 29.90% of the votes present at the Extraordinary General Meeting and constituting 25.65% of the total number of votes;
• NATIONALE-NEDERLANDEN OPEN PENSION FUND, entitled to vote from 2,265,516 shares granting 2,265,516 votes, representing approximately 5.31% of the votes present at the Extraordinary General Meeting and constituting 4.55% of the total number of votes.

For the Company:

Jakub Swadźba – President of the Management Board

Paweł Chytła – Vice President of the Management Board