Stora Enso Oyj: Notification of Change in Holdings according to Chapter 9, Section 10 of the Finnish Securities Markets Act (5 September 2025)

STORA ENSO OYJ STOCK EXCHANGE RELEASE 8 September 2025 at 15:00 EEST

Stora Enso Oyj received a notification pursuant to chapter 9, section 5 of the Securities Market Act from BlackRock, Inc on 8 September 2025.

On 5 September 2025 , BlackRock's holding, including holding through financial instruments, in Stora Enso’s shares increased above the 5 percent threshold.

% 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)

Resulting situation on the date on which threshold was crossed or reached

4.07% shares

Below 5% voting rights

1.13% shares

Below 5% voting rights

5.20% shares

Below 5% voting rights

Position of previous notification (if applicable)

Below 5% shares

Below 5%