Synairgen Regulatory News (SNG)

23 Feb 2007 15:16

Synairgen plc23 February 2007 TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES 1. Identity of the issuer or the underlying issuer of Synairgen plcexisting shares to which voting rights are attached: 2. Reason for the notification (please tick the appropriate box or boxes) An acquisition or disposal of voting rights ( ) An acquisition or disposal of financial instruments which may result in the ( )acquisition of shares already issued to which voting rights are attached An event changing the breakdown of voting rights ( ) Other (please specify): Confirmation of our Xholding___________________________________ 3. Full name of person(s) subject to the AMVESCAP plcnotification obligation: 4. Full name of shareholder(s) (if differentfrom 3.): 5. Date of the transaction (and date on whichthe threshold is crossed or reached ifdifferent): 6. Date on which issuer notified: 23 February 2007 7. Threshold(s) that is/are crossed or reached: 5%, 6% 8. Notified details: - A: Voting rights attached to sharesClass/type of Situation previous to the Resulting situation after the triggering transactionshares Triggering transaction if possible Number of Number of Number of Number of voting % of voting rightsusing the ISIN Shares Voting Rights shares rightsCODE Direct Direct Indirect Direct Indirect Ordinary 1p 1,314,211 1,314,211 1,314,211 1,314,211 6.05%Shares(GB00B0381Z20) B: Financial InstrumentsResulting situation after the triggering transactionType of financial Expiration date Exercise/ Conversion Number of voting rights % of votinginstrument Period/ Date that may be acquired if rights the instrument is exercised/ converted. - Total (A+B)Number of voting rights % of voting rights1,314,211 6.05% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectivelyheld, if applicable: Chase Nominees - 743,836 Vidacos Nominees - 570,375 Proxy Voting: 10. Name of the proxy holder: 11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will cease to hold votingrights: 13. Additional information: 14. Contact name: John Ward 15. Contact telephone number: 02380 512800 This information is provided by RNS The company news service from the London Stock Exchange