TKC 6-K
Turkcell Iletisim Hizmetleri A S (TKC)
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 September 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 September 22, 2026 announcing the capital increase of the registrant’s subsidiary, Turktell Bilişim Servisleri A.Ş.
Istanbul, September 22, 2026
Announcement Regarding Turktell Bilişim Servisleri A.Ş. Capital Increase
The capital of our Company’s wholly-owned subsidiary, Turktell Bilişim Servisleri A.Ş. (“Turktell”), has been increased by TRY 8,000,000,000 to TRY 45,220,306,252. Our Company’s pre-emption rights with respect to the capital increase is fully paid in cash.
For more information:
Turkcell Investor Relations
Tel: + 90 212 313 1888
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: September 22, 2026 | By: | /s/ Özlem Yardım | |
| Name: | Özlem Yardım | ||
| Title: | Investor Relations Corporate Finance Director | ||
| TURKCELL İLETİŞİM HİZMETLERİ A.Ş. | |||
| Date: September 22, 2026 | By: | /s/ Kamil Kalyon | |
| Name: | Kamil Kalyon | ||
| Title: | Chief Financial Officer | ||