Published: 2025-10-29 15:30:03 EET
Wärtsilä - Major shareholder announcements

Notification in accordance with the Finnish Securities Market Act Chapter 9 § 10: BlackRock, Inc.'s holding in Wärtsilä Corporation

Wärtsilä Corporation, flagging notification, 29 October 2025 at 15:30 EET

Notification in accordance with the Finnish Securities Market Act Chapter 9 §
10: BlackRock, Inc.'s holding in Wärtsilä Corporation
BlackRock, Inc. has informed Wärtsilä Corporation that it has crossed above the
5% disclosure limit on holding in shares and voting rights on 28 October 2025.
Following the transaction, BlackRock, Inc. owns 4.92% of Wärtsilä's shares and
voting rights, while its total holding in Wärtsilä Corporation corresponds to
5.01%.

Total position of BlackRock, Inc. and its funds subject to the notification:

                  % of    % of shares  Total of   Total number of shares
                  shares  and voting   both in %  and voting rights of
                  and     rights                  issuer
                  voting  through
                  rights  financial
                          instruments
Resulting          4.92%        0.09%      5.01%             591,723,390
situation on the
date on
which threshold
was crossed or
reached
Position of        Below     Below 5%   Below 5%
previous              5%
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  Number of                 % of
of shares     shares and                shares
              voting                    and
              rights                    voting
                                        rights
              Direct     Indirect (SMA  Direct  Indirect (SMA 9:6 and 9:7)
              (SMA 9:5)  9:6 and 9:7)   (SMA
                                        9:5)
FI0009003727                29,142,069                               4.92%
SUBTOTAL A                  29,142,069                               4.92%

B: Financial instruments according to SMA 9:6a

Type of         Expiration  Exercise /  Physical    Number   % of shares
financial       date        Conversion  or          of       and voting
instrument                  Period      cash        shares   rights
                                        settlement  and
                                                    voting
                                                    rights
American        N/A         N/A         Physical        128        0.00%
Depositary
Receipt
(US9365441057)
Securities      N/A         N/A         Physical    210,659        0.03%
Lent
CFD             N/A         N/A         Cash        330,907        0.05%
                                        SUBTOTAL B  541,694        0.09%