Holding(s) in Company

Synairgen plc

("Synairgen" or the "Company")

Holding(s) in Company

Southampton, UK,: Synairgen plc (LSE: SNG), the respiratory drug discovery and development company, announces that it was informed on 13 November 2020 that Leonard Licht, a private investor, now holds less than 3% of the Company's issued share capital.

Enquiries:

Synairgen plc +44 (0) 23 8051 2800

Richard Marsden (Chief Executive Officer)

John Ward (Finance Director)

finnCap - Nominated Adviser and Joint Broker +44 (0) 20 7220 0500

Geoff Nash / Kate Bannatyne / Charlie Beeson (Corporate Finance)

Alice Lane / Sunila de Silva (ECM)

Numis - Joint Broker +44 (0) 20 7260 1000

James Black / Freddie Barnfield / Duncan Monteith

Consilium Strategic Communications - Financial Media and Investor +44 (0) 20 3709 5700

Relations Adviser

Mary-Jane Elliott / Sue Stuart / Olivia Manser