Turkcell (NYSE: TKC) redeems TRY 500M bond paying 40.25% interest

Q: What bond did Turkcell (TKC) redeem in June 2026?

Turkcell redeemed its financing bond with ISIN code TRFTCEL62613 on June 24, 2026. The bond had a TRY 500,000,000 nominal amount, 104-day maturity, and was sold via private placement to qualified investors in Türkiye.

Q: What were the main terms of Turkcell’s (TKC) redeemed TRY 500 million bond?

The redeemed bond had a TRY 500,000,000 nominal value, 104-day maturity starting March 12, 2026, and a fixed annual simple interest rate of 40.25% . It carried an annual compound interest rate of 46.38138% and paid a single coupon at maturity.

Q: How and where was Turkcell’s (TKC) redeemed bond TRFTCEL62613 issued?

The bond was issued as a debt security via private placement to qualified investors in Türkiye. It was traded on the stock exchange, denominated in TRY, with sales conducted on March 11, 2026 under a TRY 10,000,000,000 issue limit.

Q: What was the credit rating of Turkcell’s (TKC) bond TRFTCEL62613?

JCR Avrasya Derecelendirme A.Ş. assigned a Long Term National Rating of AAA (tr) on May 29, 2025. This rating was classified as investment grade, reflecting the rating agency’s assessment of the bond’s credit quality at that time.

Q: Who acted as intermediary and depository for Turkcell’s (TKC) redeemed bond?

The intermediary brokerage house for the bond was Ziraat Menkul Değerler A.Ş. , and the central securities depository was Merkezi Kayıt Kuruluşu A.Ş. . These institutions handled placement to qualified investors and custody within the Turkish capital markets infrastructure.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

6-K

Rhea-AI Filing Summary

Turkcell İletişim Hizmetleri A.Ş. redeemed its financing bond with ISIN code TRFTCEL62613 on June 24, 2026. The bond had a nominal amount of TRY 500,000,000, a maturity of 104 days, and a fixed annual simple interest rate of 40.25%.

A single coupon was paid with a periodic interest rate of 11.46849%, corresponding to an interest payment of TRY 57,342,450, alongside repayment of the TRY 500,000,000 principal. The bond was issued via private placement to qualified investors under a TRY 10,000,000,000 debt securities limit and carried a long-term national rating of AAA (tr).

Key Figures

Bond nominal amount: TRY 500,000,000 Bond maturity: 104 days Annual simple interest rate: 40.25% +5 more

8 metrics

Bond nominal amount TRY 500,000,000 Financing bond TRFTCEL62613 nominal value

Bond maturity 104 days Term from March 12, 2026 to June 24, 2026

Annual simple interest rate 40.25% Fixed yearly simple interest on TRFTCEL62613

Annual compound interest rate 46.38138% Yearly compound interest on TRFTCEL62613

Coupon interest payment TRY 57,342,450 Single coupon paid on June 24, 2026

Periodic coupon rate 11.46849% Interest rate for single coupon period

Debt issue limit TRY 10,000,000,000 Overall limit for related debt securities program

Credit rating AAA (tr) Long Term National Rating by JCR Avrasya on May 29, 2025

Key Terms

private placement, qualified investor, fixed interest rate, yearly compound, +2 more

6 terms

private placement financial

"Sale Type | Private Placement-Sale to Qualified Investor"

A private placement is a sale of securities directly to a selected group of investors, typically institutions or accredited investors, instead of through a public offering. It lets a company raise money faster and with fewer regulatory steps; for existing shareholders it matters because the newly issued shares, often sold at a discount, increase the share count and can dilute their ownership.

qualified investor financial

"Sale Type | Private Placement-Sale to Qualified Investor"

fixed interest rate financial

"Interest Rate Type | Fixed Interest Rate - Yearly Simple (%) | 40.25000"

A fixed interest rate is a set percentage charged or paid on a loan, bond, or savings account that does not change for a specified period. Think of it like locking the price of heat for the winter: it gives predictable payments and helps investors plan cash flow and compare returns, but it can be a disadvantage if broader market rates fall because the return stays the same while new opportunities may offer higher yields.

yearly compound financial

"Interest Rate - Yearly Compound (%) | 46.38138"

Long Term National Rating AAA (tr) financial

"Long Term National Rating AAA (tr) | 29.05.2025 | Yes"

Capital Market Board Approval regulatory

"Capital Market Board Approval Date | 13.06.2025"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 06/24/2026 - 03:51 PM Accepted by SEC EDGAR 06/24/2026 - 03:50 PM

FAQ

What bond did Turkcell (TKC) redeem in June 2026?

Turkcell redeemed its financing bond with ISIN code TRFTCEL62613 on June 24, 2026. The bond had a TRY 500,000,000 nominal amount, 104-day maturity, and was sold via private placement to qualified investors in Türkiye.

What were the main terms of Turkcell’s (TKC) redeemed TRY 500 million bond?

The redeemed bond had a TRY 500,000,000 nominal value, 104-day maturity starting March 12, 2026, and a fixed annual simple interest rate of 40.25%. It carried an annual compound interest rate of 46.38138% and paid a single coupon at maturity.

How much interest did Turkcell (TKC) pay on bond TRFTCEL62613 at redemption?

Turkcell paid a single coupon with a periodic interest rate of 11.46849%, resulting in an interest payment of TRY 57,342,450. This interest payment was made together with repayment of the TRY 500,000,000 principal amount on June 24, 2026.

How and where was Turkcell’s (TKC) redeemed bond TRFTCEL62613 issued?

The bond was issued as a debt security via private placement to qualified investors in Türkiye. It was traded on the stock exchange, denominated in TRY, with sales conducted on March 11, 2026 under a TRY 10,000,000,000 issue limit.

What was the credit rating of Turkcell’s (TKC) bond TRFTCEL62613?

JCR Avrasya Derecelendirme A.Ş. assigned a Long Term National Rating of AAA (tr) on May 29, 2025. This rating was classified as investment grade, reflecting the rating agency’s assessment of the bond’s credit quality at that time.

Who acted as intermediary and depository for Turkcell’s (TKC) redeemed bond?

The intermediary brokerage house for the bond was Ziraat Menkul Değerler A.Ş., and the central securities depository was Merkezi Kayıt Kuruluşu A.Ş.. These institutions handled placement to qualified investors and custody within the Turkish capital markets infrastructure.

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 June 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 June 24, 2026 announcing the redemption of the registrant's bond with ISIN code TRFTCEL62613.

Istanbul, June 24, 2026

Announcement Regarding the Redemption of the Bond with ISIN Code TRFTCEL62613

Within the scope of our Company's announcement dated March 12, 2026, the redemption and coupon payment of the financing bond with ISIN code TRFTCEL62613 with a nominal amount of TRY 500,000,000 a maturity of 104 days and an annual simple interest rate of 40.25% was made on June 24, 2026 (today).

Board Decision Date	: 25.03.2025

Related Issue Limit Info

Currency Unit	: TRY
Limit	: 10,000,000,000
Issue Limit Security Type	: Debt Securities
Sale Type	: Private Placement-Sale to Qualified Investor
Domestic / Oversea	: Domestic
Capital Market Board Approval Date	: 13.06.2025

Capital Market Instrument to be Issued Info

Type	: Bill
Maturity Date	: 24.06.2026
Maturity (Day)	: 104
Sale Type	: Sale To Qualified Investor
Intended Nominal Amount	: 500,000,000
The country where the issue takes place	: Türkiye
Title Of Intermediary Brokerage House	: ZİRAAT YATIRIM MENKUL DEĞERLER A.Ş.
Central Securities Depository	: Merkezi Kayıt Kuruluşu A.Ş.
Starting Date of Sale	: 11.03.2026
Ending Date of Sale	: 11.03.2026
Nominal Value of Capital Market Instrument Sold	: 500,000,000
Maturity Starting Date	: 12.03.2026
Issue Price	: 1
Interest Rate Type	: Fixed
Interest Rate - Yearly Simple (%)	: 40.25000
Interest Rate - Yearly Compound (%)	: 46.38138
Traded in the Stock Exchange	: Yes
Payment Type	: TL Payment
ISIN Code	: TRFTCEL62613
Coupon Number	: 1
Currency Unit	: TRY
Coupon Payment Frequency	: Single Coupon

Redemption Plan of Capital Market Instrument Sold

Coupon Number	Payment Date	Record Date*	Payment Date	Interest Rate - Periodic (%)	Payment Amount	Exchange Rate	Was The Payment Made?
1	24.06.2026	23.06.2026	24.06.2026	11.46849	57,342,450
Principal/Maturity Date Payment Amount	24.06.2026	23.06.2026	24.06.2026		500,000,000

* The date on which the beneficiaries are determined.

Issuer Rating Note

Rating Company	Rating Note	Rating Date	Is it Investment Grade?
JCR AVRASYA DERECELENDİRME A.Ş.	Long Term National Rating AAA (tr)	29.05.2025	Yes

For more information:

Turkcell Investor Relations

investor.relations@turkcell.com.tr

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: June 24, 2026	By:	/s/ Özlem Yardım
		Name:	Özlem Yardım
		Title:	Investor Relations Corporate Finance Director

	TURKCELL İLETİŞİM HİZMETLERİ A.Ş.

Date: June 24, 2026	By:	/s/ Kamil Kalyon
		Name:	Kamil Kalyon
		Title:	Chief Financial Officer

Source: View Original Filing on SEC EDGAR