Admission of Shares

RHYTHMONE PLC TO MAKE DEFERRED CONSIDERATION PAYMENT

London, England and San Francisco, CA - 21 December 2017 - RhythmOne plc (LSE AIM: RTHM, "Company" or "RhythmOne"), a digital advertising technology company that connects audiences with brands through content across devices, today announces that an application has been made to the London Stock Exchange for the admission of an additional 1,660,569 ordinary shares of £0.10 each in the Company to trading on AIM resulting from the release of part of the deferred consideration payment to RadiumOne, Inc. as first announced on 27 June 2017. These shares are subject to a lock-up until 26 June 2018, subject to customary exceptions and will rank pari passu in all respects with the existing ordinary shares of the Company. Admission is expected to take place at 8.00 a.m. GMT on 22 December 2017.

Following the anticipated admission of the new ordinary shares, the total issued share capital of the Company will be 51,235,968 ordinary shares of £0.10 per share, each with one voting right. There are no Treasury shares in the Company.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, RhythmOne.

About RhythmOneRhythmOne provides streamlined, transparent connections between advertisers and audiences through a combination of differentiated supply, innovative technology and data-driven insights. Founded in 2004 in the UK, the Company pioneered Internet video search and works with digital advertisers, publishers and content providers to offer fully integrated, cross-screen solutions that span desktop and mobile video, rich media, display, social and native advertising. Through its fully integrated programmatic platform, RhythmMax, the Company represents digital advertising inventory across owned, controlled and extended supply sources. The RhythmMax platform includes unique brand safety technology, RhythmGuard, which combines leading third-party verification and proprietary filtering technologies to ensure inventory quality in brand safe environments. RhythmOne's end-to-end platform provides more direct, efficient and effective connections, driving ROI for advertisers and publishers. The Company is headquartered in San Francisco, United States with offices in the US, UK, Europe, APAC and Canada. For more information, please visit www.rhythmone.com.

For further information, please contact:Analyst and Investor ContactDan SlivjanovskiRhythmOne plc

Financial Media ContactsEdward Bridges / Charles PalmerFTI Consulting LLP+44 20 3727 1000

Nomad and Broker for RhythmOneNick Westlake (Nomad) / Lorna TilbianMichael Wharton / Toby AdcockNumis +44 20 7260 1000