WithSecure Oyj — Major Shareholding Notification 2025

Nov 10, 2025

WithSecure Corporation: Notice pursuant to the Finnish Securities Market Act, Chapter 9, Section 10

WithSecure Corporation: Notice pursuant to the Finnish Securities Market Act, Chapter 9, Section 10

WithSecure Corporation | Stock Exchange Release | 10 November 2025 at 20:15 EET

WithSecure Corporation: Notice pursuant to the Finnish Securities Market Act, Chapter 9, Section 10 

WithSecure Corporation has received an announcement from Risto Siilasmaa on 10 November 2025, in accordance with the Finnish Securities Market Act Chapter 9, Section 5. 

According to the announcement, the total number of shares and votes held by Risto Siilasmaa decreased to below five (5) per cent and on 10 November 2025. 

Total position of Risto Siilasmaa subject to the notification obligation: 

	% of shares and voting rights (total of 7.A)	% of shares and voting rights through financial instruments (total of 7.B)	Total of both in % (7.A + 7.B)	Total number of shares and voting rights of issuer
Resulting situation on the date on which threshold was crossed or reached	0.00	-	0.00	176,098,739
Position of previous notification (if applicable)	-	-	-	-

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
Direct  (SMA 9:5)	Indirect  (SMA 9:6 and 9:7)	Direct  (SMA 9:5)	Indirect  (SMA 9:6 and 9:7)
FI4000519228	0		0
SUBTOTAL A	0	0.00

B: Financial Instruments according to SMA 9:6a

Type of financial instrument	Expiration date	Exercise/ Conversion Pe-riod	Physical or cash settlement	Number of shares and voting rights	% of shares and voting rights
			SUBTOTAL B

Contact information:

Tom Jansson

CFO

WithSecure Corporation

+358 9 2520 0700

investor-relations@withsecure.com