Regulatory press release

Announcement of a change in shareholding according to Chapter 9, Section 10 of the Finnish Securities Market Act

Qt Group Plc | Stock Exchange Release | May 15, 2026 at 8:00 am EEST

Qt Group Plc hereby announces that it has on 11 May, 2026 received the following flagging notice from The Goldman Sachs Group, Inc:

Total positions of the party subject to the notification 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	0.10%	5.00%	5.10%	25,470,211
Position of previous notification (if applicable)	0.30%	4.99%	5.29%

Notified details of the resulting situation on the date on which the threshold was crossed:
A: Shares and voting rights
Class/type of shares ISIN code (if possible)	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)
FI4000198031				25,027				0.10%

SUBTOTAL A				25,027				0.10%

B: Financial Instruments according to SMA 9:6a
Type of financial instrument		Expiration date	Exercise/ Conversion Period		Physical or cash settlement		Number of shares and voting rights		% of shares and voting rights
Securities lending		Open			Physical		672,427		2.64%
Swap		03/08/2033			Cash		141,526		0.56%
Swap		20/04/2029			Cash		106,211		0.42%
Swap		20/08/2035			Cash		75,924		0.30%
Swap		07/03/2029			Cash		70,017		0.27%
Swap		10/04/2029			Cash		49,943		0.20%
Swap		15/01/2030			Cash		27,214		0.11%
Swap		19/02/2029			Cash		26,543		0.10%
Swap		30/04/2036			Cash		25,461		0.10%
Swap		15/01/2036			Cash		20,775		0.08%
Swap		05/12/2030			Cash		18,746		0.07%
Swap		19/02/2036			Cash		17,534		0.07%
Swap		16/04/2035			Cash		6,139		0.02%
Swap		10/06/2031			Cash		4,291		0.02%
Swap		15/09/2027			Cash		3,188		0.01%
Swap		04/06/2027			Cash		3,156		0.01%
Swap		06/11/2028			Cash		2,964		0.01%
Swap		06/03/2029			Cash		971		0.004%
Swap		20/02/2029			Cash		733		0.003%
Swap		07/05/2029			Cash		385		0.002%
Swap		08/05/2028			Cash		369		0.001%
Swap		08/05/2029			Cash		243		0.001%
					SUBTOTAL B		1,274,758		5.00%

Information in relation to the party subject to the notification obligation and full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entity:
Name	% of shares and voting rights	% of shares and voting rights through financial instruments	Total of both
The Goldman Sachs Group, Inc.
GSAM Holdings LLC
GSAMI Holdings I LLC
GSAMI Holdings II Ltd
Goldman Sachs Asset Management International Holdings Ltd
Goldman Sachs Asset Management International

The Goldman Sachs Group, Inc.
GSAM Holdings LLC
Goldman Sachs Asset Management, L.P.

The Goldman Sachs Group, Inc.
Goldman Sachs (UK) L.L.C.
Goldman Sachs Group UK Limited
Goldman Sachs International

The Goldman Sachs Group, Inc.
Goldman Sachs & Co. LLC

The Goldman Sachs Group, Inc.
Goldman Sachs Bank USA

Additional information:
Mika Pälsi, General Counsel, Qt Group Plc
Tel. +358 9 8861 8040, mika.palsi@qt.io

Distribution:
Nasdaq Helsinki
Key media
www.qt.io

About Qt Group
Qt Group (Nasdaq Helsinki: QTCOM) is a global software company, trusted by industry leaders and over 1.5 million developers worldwide to create applications and smart devices that users love. We help our customers increase productivity through the entire product development journey: from UI design to software development, optimizing embedded systems, and quality management. Our customers are in more than 70 different industries in over 180 countries. Qt Group employs some 1100 people, and its net sales in 2025 were 216.3 MEUR. To learn more, visit www.qt.io.