Summa Defence Plc: Disclosure under Chapter 9 Section 10 of the Securities Market Act

Summa Defence Plc
Company announcement, Major holdings        10 June 2025 at 5.00 p.m. (CEST)

Disclosure under Chapter 9 Section 10 of the Securities Market Act

Summa Defence Plc has received on June 10, 2025, a flagging notification from Baltic Work Boats in accordance with Chapter 9, Section 5 of the Finnish Securities Markets Act, indicating that its ownership exceeds 5 % of the share capital and voting rights of Summa Defence Plc as of June 10, 2025.

Summa Defence Plc has one share series, with each share carrying one vote. The total number of shares is 4,567,193,463.

Direct and indirect ownership of the party subject to the flagging obligation:

	% 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	8.23		8.23	4,567,193,463
Position of previous notification (if applicable)

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

A: Shares and voting rights

	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 and 9:7)	Direct (SMA 9:5)	Indirect (SMA 9:6 and 9:7)
FI4000425848	375,897,768	0	8.23	0
A Total	375,897,768		8.23

Information in relation to the person subject to the notification obligation:

Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer.

SUMMA DEFENCE PLC

More information:

Jussi Holopainen, CEO

Phone: +358 44 517 4543

Email: jussi.holopainen@summadefence.com

Media contact:

Tommi Manninen, Chief Communications Officer

Phone: +358 400 437 515

Email: tommi.manninen@summadefence.com

Summa Defence in brief

Summa Defence Plc is a Finnish defense and security technology group supporting industry growth and strengthening industrial production capacity amid geopolitical change. Summa Defence focuses on dual-use technologies related to security of supply, situational awareness, mobility, and defense, which benefit the civilian, security, and defense sectors while strengthening comprehensive security, security of supply, and crisis management capabilities.

The shares of Summa Defence Plc are listed on the Nasdaq First North Growth Market in Sweden (SUMMAS) and Finland (SUMMA). www.summadefence.fi/en/