📝 What This Document Is 📰

This document is a Form 6-K, which is used by foreign private issuers like Turkcell to keep the U.S. Securities and Exchange Commission (SEC) updated on material events happening in their home country. Think of it as an international progress report, ensuring that investors in the U.S. are aware of important, timely company news.

Since the filing was submitted on April 21, 2026, this 6-K is not actually sharing financial results. Instead, its sole purpose is to announce the specific date when the detailed financial results for the first quarter of 2026 are scheduled to be released.

👉 The key headline here is a future date: Turkcell plans to announce its Q1 2026 financial results on May 11, 2026.

🌐 What The Company Does 🇹🇷

Turkcell İletişim Hizmetleri A.Ş. is a major technology and telecommunications provider operating primarily out of Istanbul, Türkiye. In simple terms, they manage and sell vital communication services, including internet and mobile phone access.

The company maintains its main office at Küçükyalı İnönü Mahallesi İsmet İnönü Caddesi No:20 Küçükyalı B Blok Ofispark, 34854 Maltepe, Istanbul, Türkiye. Being a large, established local service provider, its operations are fundamental to modern life, covering everything from connecting businesses to enabling daily personal communication.

👉 They operate in the crucial and complex global telecommunications industry, making them an essential infrastructure player for Turkish consumers and businesses.

📅 Q1 2026 Financial Results Schedule 📊

The most important piece of information in this filing is the schedule for the quarterly financial results. The company covers the period defined as January 1, 2026, through March 31, 2026.

The official announcement is planned for May 11, 2026. Importantly, these results will be made public after Borsa Istanbul trading hours. This timing helps investors know exactly when to expect the detailed financial figures.

👉 The market should mark May 11, 2026, for the detailed financials, which will be covered in a subsequent, more detailed announcement.

🗂️ Future Reporting Structure 📁

When filing reports with the SEC, companies often commit to specific forms to simplify the process. This filing notes that Turkcell will continue to file its annual reports under the cover of Form 20-F.

Form 20-F is one of the standard documents that foreign private issuers use to provide comprehensive annual financial and operational data to the SEC. This indicates a standardized, long-term commitment to international reporting compliance.

👉 Knowing they file Form 20-F tells investors to expect a consistently structured, comprehensive annual review in the future.

📞 Investor and Corporate Contacts 📧

For anyone interested in following up on the company's performance or speaking directly with the financial team, the filing provides clear contact information. This structure ensures analysts and investors can connect efficiently.

The designated Investor Relations email is [email protected]. If you prefer to call, the phone number provided is + 90 212 313 1888.

👉 These centralized contact methods are key for analysts and investors seeking timely information or official clarification on the numbers.

✒️ Corporate Signatories 🧑‍💼

The filing was formally authorized and dated April 21, 2026, by two key executives. These signatures confirm the legitimacy and formal acceptance of the reported information by the company's leadership.

• Özlem Yardım served as the Investor Relations Corporate Finance Director.
• Kamil Kalyon served as the Chief Financial Officer (CFO).

👉 Both the CFO and the Investor Relations Director signed the report, confirming the accuracy and importance of the information being released to the public.

🤝 Who Should Be Watching For Next 🚀

Since this filing is purely about the future schedule, the primary focus is on the dates provided. The next significant event is the financial announcement itself, which is scheduled for May 11, 2026.

For more general information, readers are directed to the company's official investor relations website, which was listed as: [email protected].

👉 The next major event on the calendar is the unveiling of the actual financial results, which will provide the real story behind the company's performance.

---

🧠 The Analogy 🚂

Think of a financial filing like a train schedule announcement. This 6-K document isn't the actual goods (the money or the profits); it's simply the timetable board. It confirms the train (the Q1 2026 earnings report) is coming and tells you exactly when the engine will arrive at the station (May 11, 2026).

🧩 Final Takeaway 🎯

This filing serves as a crucial reminder of the reporting calendar. The most valuable date to remember is May 11, 2026, when the full financial story for the first quarter of 2026 will be officially announced.