Hrvatska Poštanska Banka d.d.

Transaction in Own Shares • Nov 5, 2025

HRVATSKA POŠTANSKA BANKA d.d.

Management Board Jurišićeva ulica 4, HR-10000 Zagreb Phone: +385 1 4804 400, +385 1 4804 409 Fax: +385 1 4810 773

Zagreb, November 5, 2025

No: F00-128/25-SS

LEI 529900D5G4V6THXC5P79 Home Member State of Issuer Republic of Croatia ISIN HRHPB0RA0002 Stock Exchange Identifier HPB Regulated Market/ Segment Zagreb Stock Exchange Inc. Official Market

Zagreb Stock Exchange Inc. Croatian Financial Services Supervisory Agency ("HANFA") Croatian News Agency OTS HINA

Subject: HRVATSKA POŠTANSKA BANKA, p.l.c.

• - Regulated information
• - Notice on purchase of HPB own shares under the Share Buyback Program

Hrvatska poštanska banka, p.l.c., Zagreb, Jurišićeva ulica 4 (hereinafter: the Bank) in accordance with Article 474 of the Capital Market Act and pursuant to the Notice on the Share Buyback Program for HPB own shares that began on November 8, 2023, with a duration of 2 (two) years, hereby informs the investment community that it carried out the following purchases of HPB own shares on the Zagreb Stock Exchange (ZSE) regulated market, as per the Share Buyback Program:

• 10 shares designated HPB have been purchased on November 3, 2025, at a weighted average price of EUR 304.00 per share, representing 0.000494% of the Bank's shareholder equity
• 5 shares designated HPB have been purchased on November 4, 2025, at a weighted average price of EUR 300.00 per share, representing 0.000247% of the Bank's shareholder equity.

Information about the transactions can be found in the forms attached to this notice.

Following the purchases mentioned before, the Bank is holding a total of 65 own shares, representing 0.003210% of the Bank's shareholder equity.

Shareholder equity of the Bank amounts to EUR 161,970,000.00 and is divided into 2,024,625 common shares at face value of EUR 80.00 each.

In accordance with the Article 5 of Regulation (EU) No. 596/2014 on market abuse ("MAR") and the related Commission Delegated Regulation (EU) 2016/1052 in regards to the regulatory technical standards for the conditions applicable to buy-back programmes and stabilisation measures ("RTS 2016/1052"), the data on the total quantity/aggregate volume of treasury shares acquired under the Buyback Program and the weighted average acquisition price over the past 7 trading days are available on the Bank's website www.hpb.hr at the following link: "Transactions from November 3 to 4, 2025 - public announcement".

Hrvatska poštanska banka, p.l.c.

Information form about the purchase of shares designated HPB, of the issuer HRVATSKA POŠTANSKA BANKA, p.l.c.

1	Information about the legal entity which fills out the form
	HRVATSKA POŠTANSKA BANKA, p.l.c. Headquarters: Zagreb (Grad Zagreb), Jurišićeva ulica 4 OIB identification no.: 87939104217 MBS Court registry no.: 080010698 Competent court: Commercial Court Zagreb
2	Basis of information
(a)	Purchase of shares designated HPB, for the purpose of implementing the Share Buyback Program of Hrvatska poštanska banka, p.l.c.
(b)	Original notice/ Modification	Initial notice
3	Information about the issuer
(a)	Name	HRVATSKA POŠTANSKA BANKA, p.l.c.
(b)	LEI	529900D5G4V6THXC5P79
4	the transaction took place	Transaction data: the section must be repeated for each date and each place where
(a)	Description of financial instrument, type of instrument Identification	Share Common shares of the Issuer HPB p.l.c. HPB, ISIN: HRHPB0RA0002
	label
(b)	Nature of transaction	Share purchase
(c)	Price and volume	Price EUR 304.00	Volume 10
(d)	Summary information - summary volume - price	Summary volume: 10 Price: EUR 3,040.00 EUR (EUR 304.00 x 10)
(e)	Transaction date	2025-11-03
(f)	Place of transaction	Regulated market, through ZSE trading platform

1	Information about the legal entity which fills out the form
	HRVATSKA POŠTANSKA BANKA, p.l.c. Headquarters: Zagreb (Grad Zagreb), Jurišićeva ulica 4 OIB identification no.: 87939104217 MBS Court registry no.: 080010698 Competent court: Commercial Court Zagreb
2	Basis of information
(a)	Purchase of shares designated HPB, for the purpose of implementing the Share Buyback Program of Hrvatska poštanska banka, p.l.c.
(b)	Original notice/ Modification	Initial notice
3	Information about the issuer
(a)	Name	HRVATSKA POŠTANSKA BANKA, p.l.c.
(b)	LEI	529900D5G4V6THXC5P79
4	the transaction took place	Transaction data: the section must be repeated for each date and each place where
(a)	Description of financial instrument, type of instrument Identification label	Share Common shares of the Issuer HPB p.l.c. HPB, ISIN: HRHPB0RA0002
(b)	Nature of transaction	Share purchase
(c)	Price and volume	Price	Volume
		EUR 300.00	5
(d)	Summary information - summary volume - price	Summary volume: 5 Price: EUR 1,500.00 EUR (EUR 300.00 x 5)
(e)	Transaction date	2025-11-04
(f)	Place of transaction	Regulated market, through ZSE trading platform