Transaction in Own Shares

Helios Towers plc

Share Buyback Programme - Transactions in Own Securities

Helios Towers plc (the "Company") announces that in the period 11 May 2026 to 15 May 2026 it purchased a total of 300,628 of its ordinary shares of £0.01 each ("Ordinary Shares"), through Merrill Lynch International ("MLI") as detailed below:

Date of purchase

Number of Ordinary Shares purchased

Highest price paid (pence per Ordinary Share)

Lowest price paid (pence per Ordinary Share)

Volume weighted average price paid (pence per Ordinary Share)

11/05/26

68,773

242.4000

235.0000

240.0967

12/05/26

58,932

241.6000

233.4000

237.7149

13/05/26

58,367

246.6000

239.6000

242.7338

14/05/26

58,652

245.4000

241.0000

243.0289

15/05/26

55,904

241.0000

235.0000

236.5468

The Company intends to cancel the purchased Ordinary Shares and does not intend to hold any of the purchased Ordinary Shares in treasury.

The purchases form part of the Company's share buyback programme as announced on 6 November 2025.

Following settlement of the above purchases and cancellation of the purchased Ordinary Shares, the Company's total number of Ordinary Shares in issue shall be 1,044,447,412 Ordinary Shares. The figure of 1,044,447,412 Ordinary Shares may be used by shareholders (and others with notification obligations) as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the Disclosure Guidance and Transparency Rules.

In accordance with Article 5(1)(b) of Regulation (EU) No.596/2014 (the Market Abuse Regulation), as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended, a detailed breakdown of individual trades made by Merrill Lynch International on behalf of the Company as part of the share buyback programme is set out below.

This announcement does not constitute, or form part of, an offer or any solicitation of an offer for securities in any jurisdiction.

LEI number of Helios Towers plc: 213800DGC7GS4XCHCU30

Schedule of Purchases

Aggregate information:

Trading venue

Aggregated volume

Weighted average price(pence per Ordinary Share)

London Stock Exchange (LSE)

203,000

240.1093

Chi-X (CHIX)

48,178

239.9413

BATE (BATE)

39,987

239.9746

Turqoise (TRQX)

9,463

239.7691

Transaction Details:

Issuer name:

Helios Towers plc

ISIN:

GB00BJVQC708

Intermediary name:

Merrill Lynch International

Intermediary code:

MLILGB3LELE

Time zone:

UKT

Currency:

GBP

Individual Transactions:

Please see attached PDF for full list of transactions.

http://www.rns-pdf.londonstockexchange.com/rns/6018E_1-2026-5-15.pdf