Nightingale Health Plc: Flagging notification in accordance with Chapter 9, Section 10 of the Securities Markets Act (Cor Group Oy)

Nightingale Health Plc | Stock Exchange Release | May 18, 2026 at 13:02:00 EEST

Nightingale Health Plc has received a notification on 18 May 2026 according to Chapter 9, Section 5 of the Finnish Securities Markets Act, stating that Cor Group Oy’s ownership of shares exceeds 15% of all shares and votes exceed 15% of all votes in Nightingale Health Plc.

Cor Group Oy’s total positions according to the notification:

	% of shares and voting rights	% of shares and voting rights through financial instruments	Total of both in %	Total number of shares and voting rights of issuer
Resulting situation on the date on which threshold was crossed or reached	19.88% of shares 15.81% of voting rights	-	19.88% of shares 15.81% of voting rights	60,938,915 shares 234,282,859 voting rights
Position of previous notification (if applicable)	10.15% of shares 12.69% of voting rights	-	10.15% of shares 12.69% of voting rights	-

Notified details of the resulting situation on the date on which the threshold was crossed or reached:

A: Shares and voting rights
Class/type of shares ISIN code	Number of shares and voting rights		% of shares and voting rights
Class/type of shares ISIN code	Direct (SMA 9:5)	Indirect SMA 9:6 ja 9:7)	Direct (SMA 9:5)	Indirect (SMA 9:6 ja 9:7)
HEALTHA FI4000490867	2,769,802 of shares 27,698,020 of voting rights	-	4.55% of shares 11.82% of voting rights	-
HEALTH FI4000490875	9,343,587 of shares and voting rights	-	15,33% of shares 3.99% of voting rights	-
SUBTOTAL A	12,113,389 of shares 37,041,607 of voting rights	-	19.88% of shares 15.81% of voting rights	-

Nightingale Health Plc has three share series: the Series B share listed on Nasdaq Helsinki, which carries one voting right per share; the unlisted Series A share, which carries 10 voting rights per share; and the unlisted EMP Series share, which has no voting rights.

About Nightingale Health
At Nightingale Health, we believe there is a way to make healthcare better for everyone. We can reduce costs for payers and ease the burden on healthcare professionals while helping people live long and healthy lives. This is possible by introducing a healthcare logic built on prevention, where the aim is to reduce the number of sick people. That is why we have created the Nightingale Health Check. With every blood sample, we make better healthcare possible for everyone.

Nightingale Health operates globally with a parent company in Finland and subsidiaries in countries such as Japan, the United States, Singapore, and the United Kingdom. Nightingale Health has customers in more than 34 countries in the healthcare and medical research sectors. The Company's technology is being used in many of the world's leading health initiatives, such as the UK Biobank, and over 900 peer-reviewed publications validate the technology. The company's Series B shares are listed on the Main Market of Nasdaq Helsinki and on the OTCQX International market. Read more: https://nightingalehealth.com/