TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi1. Identity of the issuer or the underlying issuerof existing shares to which voting rights are Bioventix plcattached:ii2 Reason for the notification (please tick the appropriate box or boxes):An acquisition or disposal of voting rights xAn acquisition or disposal of qualifying financial instruments which may resultin the acquisition of shares already issued to which voting rights are attachedAn acquisition or disposal of instruments with similar economic effect toqualifying financial instrumentsAn event changing the breakdown of voting rightsOther (please specify):3. Full name of person(s) subject to the Henderson Global Investorsnotification obligation:iii4. Full name of shareholder(s) (if different from 3.):iv5. Date of the transaction and date onwhich the threshold is crossed or 29 April 2015reached: v6. Date on which issuer notified: 30 April 20157. Threshold(s) that is/are crossed or Below 15%reached: vi, vii8. Notified details:A: Voting rights attached to shares viii, ixClass/type Situation previous Resulting situation after the triggering transactionof to the triggeringshares transaction Number Number Number Number of voting % of voting rightsif possible of of of shares rights xusing Shares Votingthe ISIN Rights Direct Direct xi Indirect Direct IndirectCODE xii Ordinary 780,527 780,527 755,527 14.95%GB00B4QVDF07B: Qualifying Financial InstrumentsResulting situation after the triggering transactionType of Expiration Exercise/ Number of voting % of votingfinancial date xiii Conversion Period xiv rights that may be rightsinstrument acquired if the instrument is exercised/ converted.C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments xv, xviResulting situation after the triggering transactionType of Exercise Expiration Exercise/ Number of voting rights % of votingfinancial price date xvii Conversion instrument refers to rights xix, xxinstrument period xviii Nominal DeltaTotal (A+B+C)Number of voting rights Percentage of voting rights 755,527 14.95%9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxiProxy Voting:10. Name of the proxy holder:11. Number of voting rights proxy holder will ceaseto hold:12. Date on which proxy holder will cease to holdvoting rights: This disclosure has been calculated based on total voting13. Additional information: rights in issue amount of 5,050,931.14. Contact name: Scott Dickenson15. Contact telephone number: 020 7818 4184