Hemogenyx Pharmaceuticals plc

(“Hemogenyx Pharmaceuticals” or the “Company”)

Update on Admission of Shares

Hemogenyx Pharmaceuticals plc (LSE: HEMO), the biopharmaceutical group developing new therapies and treatments for blood diseases, provides an update to the admission of new ordinary shares as announced on 18 December 2025.

The FCA has notified the Company that the admission hearing has been scheduled for the earliest available date being 5 January 2026, with admission expected to occur on or around 8.00 a.m. on 6 January 2026.

All other details outlined in the Company’s announcement of 18 December 2025 remain unchanged.

Enquiries:

Hemogenyx Pharmaceuticals plchttps://hemogenyx.com
Dr Vladislav Sandler, Chief Executive Officer & Co-Founderheadquarters@hemogenyx.com
Peter Redmond, Directorpeter.redmond@hemogenyx.com
SP Angel Corporate Finance LLPTel: +44 (0)20 3470 0470
Matthew Johnson, Vadim Alexandre, Adam Cowl
AlbR Capital LimitedTel: +44 (0)20 7469 0930
Lucy Williams, Duncan Vasey, Charles Goodfellow

About Hemogenyx Pharmaceuticals plc

Hemogenyx Pharmaceuticals is a publicly traded company (LSE: HEMO) headquartered in London, with its US operating subsidiaries, Hemogenyx Pharmaceuticals LLC and Immugenyx LLC, located in New York City.

The Company is a clinical stage biopharmaceutical group developing new medicines and treatments to treat blood and autoimmune diseases. Hemogenyx Pharmaceuticals is developing several distinct and complementary product candidates, as well as platform technologies that it uses as engines for novel product development.