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 | June 8, 2026 at 4:15 pm EEST

Qt Group Plc hereby announces that it has on 5 June, 2026 received a flagging notice from The Goldman Sachs Group, Inc. According to the received flagging notice The Goldman Sachs Group, Inc. has on 4 June, 2026 crossed 5% flagging threshold in their total shares and voting rights in Qt Group Plc as well as of shares and voting rights through financial instruments. Flagging notice provides the following information:

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	0.09%	5.22%	5.31%	25,470,211
Position of previous notification (if applicable)	0.19%	4.07%	4.26%

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				22,783				0.09%

SUBTOTAL A				22,783				0.09%

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		821,727		3.23%
Swap		01/06/2027			Cash		155		0.001%
Swap		04/06/2027			Cash		2,443		0.01%
Swap		18/06/2027			Cash		200		0.001%
Swap		15/09/2027			Cash		2,067		0.01%
Swap		05/06/2028			Cash		2,669		0.01%
Swap		06/11/2028			Cash		2,964		0.01%
Swap		19/02/2029			Cash		20,862		0.08%
Swap		10/04/2029			Cash		8,735		0.03%
Swap		07/05/2029			Cash		21		0.0001%
Swap		08/05/2029			Cash		111,999		0.44%
Swap		18/05/2029			Cash		52,038		0.20%
Swap		29/05/2029			Cash		29,917		0.12%
Swap		15/01/2030			Cash		30,988		0.12%
Swap		05/12/2030			Cash		12,329		0.05%
Swap		28/05/2031			Cash		15,881		0.06%
Swap		03/08/2033			Cash		94,992		0.37%
Swap		20/08/2035			Cash		59,213		0.23%
Swap		15/01/2036			Cash		14,588		0.06%
Swap		19/02/2036			Cash		13,780		0.05%
Swap		30/04/2036			Cash		25,464		0.10%
Swap		12/05/2036			Cash		330		0.001%
Swap		13/05/2036			Cash		662		0.003%
Swap		19/05/2036			Cash		2,104		0.008%
Swap		20/05/2036			Cash		849		0.003%
Swap		21/05/2036			Cash		454		0.002%
Swap		23/05/2036			Cash		314		0.001%
Swap		29/05/2036			Cash		73		0.0003%
Swap		02/06/2036			Cash		149		0.0006%
Swap		04/06/2036			Cash		646.7401		0.003%
					SUBTOTAL B		1,328,612		5.22%

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
Goldman Sachs Bank Europe SE

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.

Regulatory press release

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

Qt Group

Qt Group Plc | Stock Exchange Release | June 8, 2026 at 4:15 pm EEST

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	0.09%	5.22%	5.31%	25,470,211
Position of previous notification (if applicable)	0.19%	4.07%	4.26%

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				22,783				0.09%

SUBTOTAL A				22,783				0.09%

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		821,727		3.23%
Swap		01/06/2027			Cash		155		0.001%
Swap		04/06/2027			Cash		2,443		0.01%
Swap		18/06/2027			Cash		200		0.001%
Swap		15/09/2027			Cash		2,067		0.01%
Swap		05/06/2028			Cash		2,669		0.01%
Swap		06/11/2028			Cash		2,964		0.01%
Swap		19/02/2029			Cash		20,862		0.08%
Swap		10/04/2029			Cash		8,735		0.03%
Swap		07/05/2029			Cash		21		0.0001%
Swap		08/05/2029			Cash		111,999		0.44%
Swap		18/05/2029			Cash		52,038		0.20%
Swap		29/05/2029			Cash		29,917		0.12%
Swap		15/01/2030			Cash		30,988		0.12%
Swap		05/12/2030			Cash		12,329		0.05%
Swap		28/05/2031			Cash		15,881		0.06%
Swap		03/08/2033			Cash		94,992		0.37%
Swap		20/08/2035			Cash		59,213		0.23%
Swap		15/01/2036			Cash		14,588		0.06%
Swap		19/02/2036			Cash		13,780		0.05%
Swap		30/04/2036			Cash		25,464		0.10%
Swap		12/05/2036			Cash		330		0.001%
Swap		13/05/2036			Cash		662		0.003%
Swap		19/05/2036			Cash		2,104		0.008%
Swap		20/05/2036			Cash		849		0.003%
Swap		21/05/2036			Cash		454		0.002%
Swap		23/05/2036			Cash		314		0.001%
Swap		29/05/2036			Cash		73		0.0003%
Swap		02/06/2036			Cash		149		0.0006%
Swap		04/06/2036			Cash		646.7401		0.003%
					SUBTOTAL B		1,328,612		5.22%

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
Goldman Sachs Bank Europe SE

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