UK small-cap RNS · 22 Dec 2025

The key announcements of UK small & mid caps under £2bn on 22 Dec 2025 – situations they move are marked, with the share price since.

Key = all announcements except routine filings (voting rights, buybacks, holdings, director forms), plus director dealings and holdings that are part of a situation. Not investment advice.

Date	Company	Mcap ↕	Type	Announcement
22 Dec	Premier Miton Group PMI	£48m	Results	Annual Report and Notice of AGM Premier Miton Group plc (AIM: PMI) today announces that its Annual Report and Financial Statements (the 'Annual Report') for the year ended 30 September 2025 together with the Notice of Annual General Meeting (the 'Notice') are available to download from the …
22 Dec	KEFI Gold and Copper KEFI	£95m	Project milestones	RetailBook Offer · KEFI announces a conditional retail offer of new Ordinary Shares via RetailBook;
22 Dec	KEFI Gold and Copper KEFI	£95m	Project milestones	Tulu Kapi Full Launch Underway and Fundraise US$20 million issue of equity to Fund Immediate Component of Assembled US$340 million Debt and Equity Package and repay liabilities (the "Fundraise")
22 Dec	Beeks Financial Cloud Group BKS	£120m		Exercise of Share Options 22 December 2025 --- Beeks Financial Cloud Group plc (AIM: BKS), a cloud computing and connectivity provider for financial markets, announces that it has issued a total of 60,000 ordinary shares of £0.00125 each ("Ordinary Shares") following the exercise of …
22 Dec	Frontier IP Group FIPP	£13m	Fundraise	Result of Retail Offer The Company is pleased to announce that the Retail Offer was oversubscribed and successfully completed and closed at 10.00 a.m. on 22 December 2025.
22 Dec	CLS Holdings CLI	£201m		Changes to the responsibilities of a director As previously notified, Elizabeth Edwards, independent Non-Executive Director of the Company, retires from the Board on 31 December 2025.
22 Dec	Amigo Holdings AMGO	£34m	Director dealing	Director and PDMR dealing Amigo Holdings PLC (LSE: AMGO) announces that the Company has received notification that a person closely associated with the director listed below has purchased shares in Amigo Holdings PLC ordinary shares of 0.25p each ("Ordinary Shares") as follows:
22 Dec	Sysgroup SYS	£31m		Acquisition of Saxis Group Limited The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No.
22 Dec	Vast Resources VAST	£62m	Balance-sheet stress / refinancing	Proposed Acquisition This announcement replaces the announcement with RNS number: 4976M released on 22 December 2025 at 12:00 p.m., with the headline "Proposed Acquisition: Gulf International Minerals".
22 Dec	KEFI Gold and Copper KEFI	£95m	Project milestones	Tulu Kapi Funding Update The Company can confirm that it has signed a term-sheet with a fund for US$30 million of equity-ranking 'Gold Streams' (with terms as outlined in the Company's announcement of 8 December 2025).
22 Dec	Sabien Technology Group SNT	£1.1m		Update on Funding and Strategic Arrangements Further to the announcement on 10 November 2025, the Company is pleased to confirm that the invoice factoring facility with Parris Group Limited has now been completed.
22 Dec	Grit Real Estate Income Group Limited GR1T	£32m		Result of AGM SEM share codes (dual currency trading): DEL.N0000 (USD) / DEL.C0000 (MUR)
22 Dec	Vast Resources VAST	£62m		Suspension - Vast Resources plc At the request of the Company, trading on AIM for the under-mentioned securities has been temporarily suspended from 22/12/2025 12:00pm, pending an announcement.
22 Dec	Vast Resources VAST	£62m	Balance-sheet stress / refinancing	Proposed Acquisition: Gulf International Minerals Reverse Takeover and Suspension from trading on AIM,
22 Dec	Victrex plc VCT	£820m	Results	Annual Report Victrex plc is an innovative world leader in high performance polymer solutions, whose products enable environmental and societal benefit in multiple end-markets.
22 Dec	TT Electronics TTG	£334m		Further Adjournment of Court & General Meetings to be effected by means of a scheme of arrangement
22 Dec	Aura Energy Limited AURA	£44m		Appendix 3B Aura Energy Limited (ASX: AEE, AIM: AURA) ("Aura", the "Company") advises that an Appendix 3B (Proposed Issue of Securities to Directors) form has been filled with the Australian Securities Exchange ("ASX") pursuant to the proposed grant of 2,000,000 ordinary …
22 Dec	Aura Energy Limited AURA	£44m	Director dealing	Appendix 3Y & 2A, Share Issue & PDMR Notification Aura Energy Limited (ASX:AEE, AIM: AURA) ("Aura", the "Company") a Company focused on the development of the 85% owned Tiris Uranium Project in Mauritania and the 100% owned Häggån Polymetallic Project in Sweden advises that following shareholder approval at …
22 Dec	Caspian Sunrise CASP	£45m		Acquisition of Tau-Cen The following amendment has been made to the "Acquisition of Tau-Cen" announcement released on 22 December 2025 at 7:00 under RNS No 3555M.
22 Dec	EKF Diagnostics Holdings EKF	£107m		Share Buyback EKF Diagnostics Holdings plc (AIM: EKF), the AIM-listed global diagnostics business, announces that it has purchased a total of 93,980 of its ordinary shares of 1p each in the capital of the Company ("Ordinary Shares") at a weighted average price of 25.5 …
22 Dec	Oxford Biodynamics OBD	£15m		Publication of 2025 Annual Report ("OBD" or the "Company" and, together with its subsidiaries, the "Group")
22 Dec	Aura Energy Limited AURA	£44m	Director dealing	Appendix 3G & PDMR Notification Aura Energy Limited (ASX:AEE, AIM: AURA) ("Aura", the "Company") a Company focused on the development of the 85% owned Tiris Uranium Project in Mauritania and the 100% owned Häggån Polymetallic Project in Sweden advises that an Appendix 3G (notification of …
22 Dec	Phoenix Copper Limited PXC	£4.6m		Advisory Board Member Share Purchase Phoenix Copper Limited / Ticker: PXC / Sector: Mining
22 Dec	Aura Energy Limited AURA	£44m		Appointment of Company Secretary Aura Energy Limited (ASX: AEE, AIM: AURA) ('Aura' or the 'Company') is pleased to advise the appointment of Mrs Mindy Ku as Company Secretary of the Company on 22 December 2025.
22 Dec	Associated British Engineering ASBE	£0.4m		Press Announcement on changes to Articles Following the restoration of trading in its Ordinary Shares as a Shell Company, the Board of Associated British Engineering Plc has agreed that at its next General Meeting , expected to be at its Annual General Meeting in March 2026, it will put forward a …
22 Dec	Amigo Holdings AMGO	£34m	Director dealing	Director and PDMR dealing Amigo Holdings PLC (LSE: AMGO) announces that the Company has received notification that the directors and persons closely associated with them, as listed below, have purchased shares in Amigo Holdings PLC ordinary shares of 0.25p each ("Ordinary Shares") as …
22 Dec	Aseana Properties Ltd. ASPL	£16m	Fundraise	Update re Subscription, Prospectus & TVR Update re Subscription, total voting rights and update re prospectus
22 Dec	Cohort CHRT	£595m		Investor Presentation via Engage Investor One Waterside Drive Arlington Business Park Reading Berks RG7 4SW 22 nd December 2025
22 Dec	Hemogenyx Pharmaceuticals HEMO	£45m		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.
22 Dec	Anemoi International Ltd AMOI	£2.0m		Anemoi enters into binding Sale and Purchase Agreement to acquire Trasna Further to the Company’s announcement dated 27 October 2025 in respect of the proposed acquisition of the Trasna group of companies, the Company is pleased to announce that it has entered into a share purchase agreement to acquire 100% of the entire issued …
22 Dec	Gana Media Group plc GANA	£21m		Schedule One - Mobile Streams plc Mobile Streams plc ("MOS" or the "Company") to be renamed Gana Media Group plc on Admission
22 Dec	Coro Energy CORO	£3.2m	Results	Results of the Placing Coro Energy Plc ("Coro" or the "Company"), the South East Asian renewable energy developer, is pleased to announce the successful completion of the Bookbuild announced on 22 December 2025, conditional inter alia on shareholder approval.
22 Dec	Gana Media Group plc GANA	£21m		Restoration - Mobile Streams plc
22 Dec	Red Rock Resources RRR	£1.6m	Project milestones	Final Results Final Audited Results for the Year Ended 30 June 2025
22 Dec	Sirius Real Estate Ltd. SRE	£1,472m	Director dealing	Director/PDMR Shareholding Notification of a transaction by a Person Discharging Managerial Responsibilities ("PDMR")
22 Dec	MediaZest MDZ	£1.5m		Appointment of Joint Corporate Broker MediaZest plc (AIM: MDZ), the creative audio-visual solutions provider, is pleased to announce it has appointed Oberon Capital as Joint Corporate Broker to the Company with immediate effect.
22 Dec	Defence Holdings PLC ALRT	£17m	Dilutive fundraise	Operational Update and Interim Results Operational Update: Continued Delivery Momentum and Strengthened Position Across Allied Defence Programmes and Unaudited Interim Results to 30 September 2025
22 Dec	Anglesey Mining AYM	£4.1m	Results	Half-year Results During the half year period, we were pleased to publish a conceptual study of a high-density fluid hydro-power energy storage project at the mine.
22 Dec	Coro Energy CORO	£3.2m	Fundraise	Proposed Placing and Share Capital Reorganisation Coro Energy Plc, the South East Asian renewable energy developer, announces that it is proposing to raise gross proceeds of approximately £1 million by way of a placing with existing and new institutional investors.
22 Dec	Symphony Environmental Technologies SYM	£15m		Canadian govt policy shift re. single use plastics Symphony Environmental Technologies Plc (AIM:SYM), global specialists in technologies that make plastic and rubber products "smarter, safer and sustainable welcomes the Government of Canada's announced amendment to the Single‑Use Plastics Prohibition …
22 Dec	Beowulf Mining BEM	£3.4m		Convertible Loan and Corporate Adviser Appointment 596/2014, as incorporated into UK law by the European Union (Withdrawal) Act 2018 (as amended).
22 Dec	Strategic Minerals SML	£149m		Leigh Creek Copper Mine - Call Option Exercised Strategic Minerals plc (AIM: SML; USOTC: SMCDF), an international mineral exploration and production company, provides the following updates regarding its wholly owned subsidiary, Leigh Creek Copper Mine Pty Ltd ("LCCM").
22 Dec	Alien Metals Limited UFO	£8.3m	Board change	West Coast Silver: Chairman's Letter Alien Metals Limited (AIM: UFO), a minerals exploration and development company, is pleased to release the Chairman's Letter from its joint venture partner, West Coast Silver Limited (ASX: WCE) ("West Coast" or "West Coast Silver") on the achievements and …
22 Dec	Invinity Energy Systems IES	£101m		12 MWh Sale for U.S. Project Endurium battery system to be deployed at PNNL's Richland, Washington campus
22 Dec	Rockhopper Exploration RKH	£612m	Project milestones	Financial Close on Sea Lion Project Unless otherwise defined, capitalised terms in this announcement have the meaning ascribed to them in the Definitions section set out in the Company's announcement released on 31 July 2025.
22 Dec	Thor Explorations Ltd THX	£367m		Douta Preliminary Feasibility Study Release Date Thor Explorations Ltd ("Thor" or the "Company") announces that it will publish the results of the Preliminary Feasibility Study ("PFS") for the Douta Project in Senegal on Monday 26th January 2026.
22 Dec	Rank Group RNK	£353m		Payment fraud incident in Spanish businesses The Rank Group Plc ('Rank' or the 'Group')
22 Dec	Duke Royalty Limited DUKE	£133m		Follow-On Investment into Tristone Healthcare Ltd Duke Capital Limited (AIM: DUKE), a leading provider of hybrid capital solutions for SME business owners in Europe and North America, is pleased to announce a follow-on investment of £3.0 million into its existing capital partner, Tristone Healthcare Limited …
22 Dec	Helium One Group Ltd HE1	£30m		Successful First Gas at Galactica Helium Plant · Start-up and commissioning of the Pinon Canyon processing facility completed with helium gas now being successfully processed
22 Dec	Naked Wines WINE	£40m		Launch of Share Buyback via Reverse ABB ('Naked Wines' or the 'Company' or the 'Group')
22 Dec	Ondine Biomedical Inc. OBI	£55m		First German Hospital Pilots Steriwave Ondine Biomedical Partners with LMU University Hospital Munich
22 Dec	Gana Media Group plc GANA	£21m		Publication of Admission Document Proposed acquisition of 100 per cent. of Estadio Gana and Capital Media Sports
22 Dec	ECO Animal Health Group EAH	£63m	Project milestones	ECOVAXXIN® MS EU marketing authorisation granted ECO Animal Health Group plc (AIM: EAH), a rapidly growing global animal health company with a portfolio of marketed veterinary products and a maturing proprietary R&D pipeline, announces that the European Commission has adopted a decision granting EU …
22 Dec	Secure Property Development & Investment SPDI	£0.5m		Arcona Share Distribution Secure Property Development & Investment PLC ('SPDI' or 'the Company')
22 Dec	Ultimate Products ULTP	£38m		EBT Share Purchase Further to its announcement of 1 August 2025, Ultimate Products, the owner of a number of leading homeware brands including Salter (the UK's oldest houseware brand, est.1760) and Beldray (est.1872), was notified that on 19th December 2025, JTC Employer …
22 Dec	Watkin Jones WJG	£38m		Development Partnership for 294-unit hotel Watkin Jones, the UK's leading developer and manager of residential properties for rent, is pleased to announce it has agreed a development partnership with Latium Enterprises to deliver a 294-unit hotel in the centre of Wimbledon.
22 Dec	Impax Asset Management Group IPX	£109m		Completion of £10m share buyback programme On 22 May 2025 Impax Asset Management Group plc ("Impax" or the "Company") announced the launch of a share buyback programme of its ordinary shares of 1p each (the "Ordinary Shares") for up to a maximum aggregate consideration of £10m (the "Programme").
22 Dec	Manolete Partners MANO	£17m		Grant of Share Options Manolete, the leading UK-listed insolvency litigation financing company, announces that on 17 December 2025 it granted nominal cost share options over ordinary shares of 0.4p each in the Company to its executive directors as set out in the table below.
22 Dec	PZ Cussons PZC	£415m	Board change	Directorate Change PZ Cussons plc announces today that Jan Bramall will become Chief Financial Officer and a member of the Board of Directors, joining the Company on 23rd March 2026.
22 Dec	Mendell Helium plc MDH	£13m	Results	Half-year Results Unaudited Interim Results for the six months ended 30 September 2025
22 Dec	GoldStone Resources Ltd GRL	£9.2m		Director Appointments GoldStone Resources Limited (AIM: GRL) is pleased to announce the appointment of two independent non-executive directors to its Board of directors, Mr Richard Kofi Amegashie and Mr Michael Jones with immediate effect.
22 Dec	Atlantic Lithium Limited ALL	£109m		Ratification Process - Ewoyaa Mining Lease Atlantic Lithium Limited (AIM: ALL, ASX: A11, GSE: ALLGH, "Atlantic Lithium" or the "Company"), the Africa-focused lithium exploration and development company targeting the delivery of Ghana's first lithium mine, provides the following update regarding the …
22 Dec	Catalyst Media Group CMX	£8.9m	Results	Final Results Final Results for the Year Ended 30 June 2025 and
22 Dec	Pantheon Resources PANR	£152m	New CEO / reset	Shareholder Letter and Corporate Update on Dubhe-1 Pantheon Resources Issues Shareholder Letter and Provides Corporate Update on Dubhe-1
22 Dec	CLS Holdings CLI	£201m	Disposal of a part (break-up)	Citadel Place: Conditional sale & Planning update CLS Holdings plc ("CLS", the "Company" or the "Group")
22 Dec	Enwell Energy ENW	£37m		Damage to Gas Processing Facilities at VAS Field Enwell Energy plc (AIM: ENW), the AIM-quoted oil and gas exploration and production group, announces that on the evening of 18 December 2025, the gas processing facilities at its Vasyschevskoye ("VAS") gas and condensate field in Ukraine was the subject of an …
22 Dec	Ariana Resources AAU	£36m	Project milestones	Binding Definitive Agreement for Xinhai Investment Ariana Resources plc (AIM: AAU, ASX: AA2, "Ariana" or the "Company"), the mineral exploration, development and production company with gold project interests in Africa and Europe, is pleased to announce that it has entered into a binding definitive agreement …
22 Dec	Mineral & Financial Investments Limited MAFL	£16m	Results	Audited Results for Year Ended 30 June 2025 Audited Full Year Financial Results and NAV for Period ended 30 June 2025
22 Dec	Helix Exploration HEX	£81m		Project Update at the Flagship Rudyard Project Helix Exploration, the helium exploration and development company with near-term production assets within the 'Montana Helium Fairway', is pleased to provide an update on its flagship Rudyard Project as it progresses towards first helium gas production.
22 Dec	Shield Therapeutics STX	£56m		FDA approves extension for ACCRUFeR® children 10 years and older with iron deficiency (ID)
22 Dec	Block Energy BLOE	£11m	Results	Phase 1 CCS Results Block Energy plc (AIM: BLOE), the development and production company focused on Georgia, is pleased to provide the initial results of the Phase 1 CCS pilot.
22 Dec	Atlas Metals Group plc AMG	£2.8m		Update on Proposed Acquisition Atlas Metals (LON: AMG), the natural resources and energy company is pleased to provide an update on the Company's proposed acquisition of Universal Pozzolanic Silica Alumina Ltd ("UPSA") (the "Proposed Acquisition").
22 Dec	MHA plc MHA	£396m		Proposed Acquisition of MS UAE ("MHA", the "Company" and together with its subsidiaries the "Group")
22 Dec	Galantas Gold Corp. GAL	£188m	Project milestones	Update on RDL Transaction and Brokered Financing Galantas Gold Provides Update on Acquisition of RDL Mining Corp. and Brokered Financing
22 Dec	Christie Group CTG	£43m		Sale of Vennersys Christie Group plc (CTG.L), the leading provider of Professional & Financial Services and Stock & Inventory Systems & Services to the hospitality, leisure, healthcare, medical, childcare & education and retail sectors, is pleased to announce that on 19th …
22 Dec	Gana Media Group plc GANA	£21m	Results	Final Results Audited Results for the year to 30 June 2025
22 Dec	Corcel CRCL	£42m	Results	Final Results The Company's Annual Report and Financial Statements for 2025, extracts from which are set out below, together with the Annual General Meeting Notice, will be published and sent out to the Company's shareholders shortly and will be available on the Company's …
22 Dec	MobilityOne Ltd. MBO	£12m		Update in relation to Sincere Acres Sdn Bhd MobilityOne Sdn Bhd ("M1 Malaysia"), the Group's wholly owned operating subsidiary in Malaysia, completed the acquisition of the 49% equity interest in Sincere in October 2023 and the Company has since provided a number of updates on the settlement of the …
22 Dec	Metir plc MET	£1.2m	Fundraise	Fundraise In connection with the Placing, the Company will issue 133,333,333 warrants to investors on the basis of one (1) warrant for every one (1) Placing Share.
22 Dec	East Star Resources EST	£43m		VMS Drilling Update Results from Rulikha North and Talovskoye confirm mineralisation within expected lithologies, and improve targeting for 2026 drilling
22 Dec	Solvonis Therapeutics PLC SVNS	£8.3m		Research and Development Update – Q4 2025 Pipeline advancing across addiction and psychiatry with multiple 2026 catalysts
22 Dec	Caspian Sunrise CASP	£45m		Acquisition of Tau-Cen ("Caspian Sunrise" or the "Company" and together with its subsidiaries, the "Group")