ATP YAZILIM VE TEKNOLOJİ A.Ş.

Transaction in Own Shares • Sep 12, 2025

Summary Info	Notification Regarding Share Buy-Back
Update Notification Flag	No
Correction Notification Flag	Yes
Postponed Notification Flag	No
Reason of Correction	The section titled ‘Scheduled Period Of Buy-Back' has been revised in line with the Board of Directors' resolution dated 13.05.2025 regarding the initiation of the Share Buyback Program, taking into account the Capital Markets Board's Principle Decision i-SPK.22.9 (dated 19.03.2025 and numbered 16/531). Our Share Buyback Program remains in effect in its current form.

Company Performs the Buy-Back	ATP YAZILIM VE TEKNOLOJİ A.Ş.
Company Subject to Buy-Back	ATP YAZILIM VE TEKNOLOJİ A.Ş.

Type Of Buy-Back	Within The Frame Of Buy-Back Program
Board Decision Date	05.11.2024
If Any, Duration Of Buy-Back Program	The term of the Buy-Back Program is maximum three (3) years as of the date of the general assembly meeting where the Buy-Back Program is approved.
Maximum Amount Of Shares To Be Acquired (Nominal TL)	2.500.000
Total Amount Of The Fund Set Aside For Acqusition	100.000.000

Scheduled Period Of Buy-Back

Code of Share Subject to Buy-back	Starting Date Of Period	Ending Date Of Period	Nominal Value (TRY)	Ratio To Capital (%)
B Grubu, ATATP, TREATTP00023	13.05.2025

Details of Buy-Back

Code of Share Subject to Buy-back	Transaction Date	Nominal Value of Shares Subject to Transaction (TRY)	Ratio To Capital (%)	Transaction Price (TRY / Unit)	Nominal Value Of Shares Previously Buy-Backed Within The Frame Of The Program (TRY)	Privileges, If Any, Associated With These Shares
B Grubu, ATATP, TREATTP00023	13.05.2025	98.530	0,1051	80,39
B Grubu, ATATP, TREATTP00023	14.05.2025	121.000	0,12907	82,87
B Grubu, ATATP, TREATTP00023	15.05.2025	35.000	0,03733	83,66
B Grubu, ATATP, TREATTP00023	20.05.2025	118.500	0,1264	84,38
B Grubu, ATATP, TREATTP00023	21.05.2025	22.410	0,0239	86,92
B Grubu, ATATP, TREATTP00023	23.05.2025	50.000	0,05333	85,44
B Grubu, ATATP, TREATTP00023	27.05.2025	62.000	0,06613	81,01

Additional Explanations

This statement has been translated into English for informational purposes. In case of a discrepancy between the Turkish and the English versions of this disclosure statement, the Turkish version shall prevail.