# EDGAR Filing Document

**Accession Number:** 0001071321
**File Stem:** 0001104659-25-125498
**Filing Date:** 2025-12
**Character Count:** 5459
**Document Hash:** 074c9c06e8fa0eef9e5e3e7903f456c4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-125498.hdr.sgml**: 20251231

**ACCESSION NUMBER**: 0001104659-25-125498

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20251231

**DATE AS OF CHANGE**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TURKCELL ILETISIM HIZMETLERI A S
- **CENTRAL INDEX KEY:** 0001071321
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** W8
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15092
- **FILM NUMBER:** 251616181

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** AYDINEVLER MAHALLESI INONU CADDESI NO 20
- **STREET 2:** KUCUKYALI OFISPARK, MALTEPE
- **CITY:** ISTANBUL
- **PROVINCE COUNTRY:** W8
- **ZIP:** 34854
- **BUSINESS PHONE:** 902123131244

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** AYDINEVLER MAHALLESI INONU CADDESI NO 20
- **STREET 2:** KUCUKYALI OFISPARK, MALTEPE
- **CITY:** ISTANBUL
- **PROVINCE COUNTRY:** W8
- **ZIP:** 34854

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

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**FORM 6-K**

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**REPORT OF FOREIGN PRIVATE ISSUER**

**PURSUANT TO RULE 13a-16 OR 15d-16**

**UNDER THE SECURITIES EXCHANGE ACT OF 1934**

**For the month of December 2025**

**Commission File Number: 001-15092**

**TURKCELL İLETİŞİM HİZMETLERİ A.Ş.**

(Translation of registrant's name into English)

Turkcell Küçükyalı Plaza

Aydınevler Mahallesi İnönü Caddesi No:20

Küçükyalı Ofispark

34854 Maltepe<br> 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:

⌧ Form 20-F ◻ Form 40-F

Enclosure: A press release dated December 31, 2025 announcing the completion of the merger through acquisition of the registrant with its subsidiary Artel Bilişim Servisleri A.Ş..

Istanbul, December 31, 2025

**Announcement Regarding the Completion of the Merger Through Acquisition with Our Subsidiary Artel Bilişim Servisleri A.Ş.**

The transactions of the "Merger via Facilitated Procedure" with our wholly owned subsidiary Artel Bilişim Servisleri A.Ş. ("Artel") have been completed, and the transaction has been registered to the Trade Registry.

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| | |
|:---|:---|
| &nbsp;&nbsp;Board Decision Date | &nbsp;&nbsp;: 22.08.2025 |
| &nbsp;&nbsp;Merger Model | &nbsp;&nbsp;: Merger Through Acquisition |
| &nbsp;&nbsp;Date Of Financial Statements Base to Merger | &nbsp;&nbsp;: 30.06.2025 |
| &nbsp;&nbsp;Currency Unit | &nbsp;&nbsp;: TRY |
| &nbsp;&nbsp;Acquired Company | &nbsp;&nbsp;Trading on the Stock Exchange/Not Trading on The Stock Exchange |
| &nbsp;&nbsp;Artel Bilişim Servisleri A.Ş. | &nbsp;&nbsp;Not Trading on The Stock Exchange |

---

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;**Share Group Info** | &nbsp;&nbsp;**Paid In Capital** | &nbsp;&nbsp;**Amount Of Capital to Be Increased Due to The Acquisition (TRY)** | &nbsp;&nbsp;**Capital To Be Decreased (TRY)** | &nbsp;&nbsp;**Target Capital** | &nbsp;&nbsp;**New Shares to Be Given Due to Merger** |
| &nbsp;&nbsp; Group A, Not Trading,<br> TRETCEL00012 | &nbsp;&nbsp;330000000 |  |  | &nbsp;&nbsp;330000000 |  |
| &nbsp;&nbsp;Group B, TCELL, TRATCELL91M1 | &nbsp;&nbsp;1870000000 |  |  | &nbsp;&nbsp;1870000000 |  |
| &nbsp;&nbsp;**TOTAL** | &nbsp;&nbsp;TRY 2,200,000,000 | &nbsp;&nbsp;TRY 0 | &nbsp;&nbsp;TRY 0 | &nbsp;&nbsp;TRY 2,200,000,000 |  |

---

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| | | | | |
|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**Paid In Capital** | &nbsp;&nbsp;**Amount Of Capital<br> to Be Increased Due<br> to The Acquisition** | &nbsp;&nbsp;**Capital To Be Decreased** | &nbsp;&nbsp;**Target Capital** |
| &nbsp;&nbsp;**TOTAL** | &nbsp;&nbsp;TRY 2,200,000,000 | &nbsp;&nbsp;TRY 0 | &nbsp;&nbsp;TRY 0 | &nbsp;&nbsp;TRY 2,200,000,000 |

---

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| | |
|:---|:---|
| &nbsp;&nbsp;CMB Application Date Regarding the Merger | &nbsp;&nbsp;16.09.2025 |
| &nbsp;&nbsp;CMB Application Result Regarding the Merger | &nbsp;&nbsp;Approval |
| &nbsp;&nbsp;CMB Approval Date Regarding the Merger | &nbsp;&nbsp;25.11.2025 |
| &nbsp;&nbsp;Registry Date of the Merger | &nbsp;&nbsp;31.12.2025 |

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***For more information:***

*Turkcell Investor Relations*

*<u>investor.relations@turkcell.com.tr</u>*

*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.

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| | | | |
|:---|:---|:---|:---|
|  | **TURKCELL İLETİŞİM HİZMETLERİ A.Ş.** | **TURKCELL İLETİŞİM HİZMETLERİ A.Ş.** | **TURKCELL İLETİŞİM HİZMETLERİ A.Ş.** |
| Date: December 31, 2025 | By: | /s/ Özlem Yardım | /s/ Özlem Yardım |
|  |  | Name: | Özlem Yardım |
|  |  | Title: | Investor Relations Corporate Finance Director |

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| | | | |
|:---|:---|:---|:---|
|  | **TURKCELL İLETİŞİM HİZMETLERİ A.Ş.** | **TURKCELL İLETİŞİM HİZMETLERİ A.Ş.** | **TURKCELL İLETİŞİM HİZMETLERİ A.Ş.** |
| Date: December 31, 2025 | By: | /s/ Kamil Kalyon | /s/ Kamil Kalyon |
|  |  | Name: | Kamil Kalyon |
|  |  | Title: | Chief Financial Officer |

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