6-K - TURKCELL ILETISIM HIZMETLERI A S (0001071321) (Filer)
SEC · EDGAR 财务披露 · October 23, 2026 at 2:58 PM ET
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the month of October 2026
Commission File Number: 001-15092
TURKCELL İLETİŞİM HİZMETLERİ A.Ş.
(Translation of registrant’s name into English)
Turkcell Küçükyalı Plaza
Aydınevler Mahallesi, İsmet İnönü Caddesi, No:20
Küçükyalı B Blok Ofispark
34854 Maltepe
Istanbul, Türkiye
(Address of Principal Executive Offices)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:
x Form 20-F ¨ Form 40-F
Enclosure: A press release dated October 23, 2026 announcing the registrant's share buy-back transactions.

Istanbul, October 23, 2026
Announcement Regarding the Share Buy-back Transactions
Within the scope of our Company’s buy-back program, with the aim of protecting the interests of our stakeholders and supporting healthy price formation in the market while maintaining the fair value of our shares, on October 23, 2026, a total of 3,201,696 shares were purchased at an average price level of TRY 86.75. The total transaction value is TRY 277,731,356.
The details of the buy-back transactions
| 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 |
| Group
B, TCELL, TRATCELL91M1 |
12.11.2025 | 2,093,944 | 0.095 | 95.58 | - | |
| Group
B, TCELL, TRATCELL91M1 |
23.10.2026 | 3,201,696 | 0.146 | 86.75 | 2,093,944 | - |
For more information:
Turkcell Investor Relations
Tel: + 90 212 313 1888
1
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, Turkcell İletişim Hizmetleri A.Ş. has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| TURKCELL İLETİŞİM HİZMETLERİ A.Ş. | |||
| Date: October 23, 2026 | By: | /s/ Özlem Yardım | |
| Name: | Özlem Yardım | ||
| Title: | Investor Relations Corporate Finance Director | ||
| TURKCELL İLETİŞİM HİZMETLERİ A.Ş. | |||
| Date: October 23, 2026 | By: | /s/ Kamil Kalyon | |
| Name: | Kamil Kalyon | ||
| Title: | Chief Financial Officer | ||