CORERO NETWORK SECURITY PLC — Report Publication Announcement 2026

Jun 1, 2026

National Storage Mechanism | Additional information

RNS Number : 4127G

Corero Network Security PLC

01 June 2026

1 June 2026

Corero Network Security plc

("Corero," the "Company" or the "Group")

Posting of 2025 Annual Report and Accounts

&

Notice of 2026 Annual General Meeting

Corero (AIM: CNS) (OTCQX: DDOSF), the distributed denial of service ("DDoS") protection specialists and champion of adaptive, real-time service availability, announces that it has posted the Notice of its 2026 Annual General Meeting ("AGM") as well as its Annual Report and Accounts for the year ended 31 December 2025 to shareholders who requested hard copies.

The Annual Report and Accounts are also available on the Company's website: https://www.corero.com/about/investor-relations/financial-reports/

Further details regarding the AGM

The Company's 2026 AGM will be held at Vigo Consulting, 78-79 New Bond Street, London, W1S 1RZ, at 9.00 a.m. on Wednesday, 17 June 2026.

The AGM Notice may be found at the base of the Company's website page: https://www.corero.com/about/investor-relations/shareholder-information/

Corero is committed to engagement with its shareholders, and they are invited to submit questions relating to the business of the AGM at any time from the date of this announcement by email to [email protected]. The Company will answer such questions via its website at https://www.corero.com/about/investor-relations/shareholder-information/ on a regular basis up until 8.30 a.m. on Wednesday, 17 June 2026.

Enquiries:

Corero Network Security plc	Tel: +44(0)20 7390 0230
Carl Herberger, Chief Executive Officer
Chris Goulden, Chief Financial Officer
Canaccord Genuity Limited (Nominated Adviser and Joint Broker)	Tel: +44(0)20 7523 8000
Simon Bridges / Andrew Potts / Harry Rees Zeus Capital (Joint Broker) Nick Searle / Ed Beddows	Tel: +44(0)20 3829 5000
Vigo Consulting (U.K Financial PR and Investor Relations)	Tel: +44(0)20 7390 0230
Jeremy Garcia / Anna Sutton
[email protected]
Harbor Access (U.S Investor Relations) Jonathan Paterson	Tel: +1 475 477 9401

About Corero Network Security

Corero Network Security is a leading provider of DDoS protection solutions, specialising in automatic detection and protection solutions with network visibility, analytics, and reporting tools. Corero's technology protects against external and internal DDoS threats in complex edge and subscriber environments, ensuring internet service availability. With operational centres in Marlborough, Massachusetts, USA, and Edinburgh, UK, Corero is headquartered in London and listed on the London Stock Exchange's AIM market (ticker: CNS) and the US OTCQX Market (OTCQX: DDOSF).

For more information, visit www.corero.com, and follow us on LinkedIn and X.

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