UK small-cap RNS · 15 Dec 2025
The key announcements of UK small & mid caps under £2bn on 15 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 | |
|---|---|---|---|---|---|
| 15 Dec | TT Electronics TTG | £334m | Correction Update to TT Directors’ recommendation
The following clarification is being made to the "Update to the TT Directors' Unanimous Recommendation" announcement released on 15 December 2025 at 16:36 under RNS 6408L. |
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| 15 Dec | TT Electronics TTG | £334m | Update to TT Directors’ unanimous recommendation
to be effected by means of a scheme of arrangement |
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| 15 Dec | Kelso Group Holdings KLSO | £19m | Fundraise | Proposed Placing and Subscription
Kelso, the main market listed investment vehicle, today announces its intention to raise £1 million by way of a placing and subscription of new ordinary shares of £0.01 each (the "Fundraising"). |
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| 15 Dec | Forgent PLC FORG | £5.8m | Facility Conversion Notice
Application will be made to the London Stock Exchange for admission of the 133,689,839 Conversion Shares to be admitted to trading on AIM ("Admission"). |
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| 15 Dec | Hvivo HVO | £40m | Board change | CEO & CFO Share Purchase
hVIVO plc (AIM: HVO), a full-service early phase Contract Research Organisation (CRO) and the world leader in human challenge clinical trials, announces that on 15 December 2025, Yamin 'Mo' Khan, Chief Executive Officer and Stephen Pinkerton, Chief Financial … |
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| 15 Dec | CelLBxHealth plc CLBX | £9.1m | Results of General Meeting and Board Changes
· All Resolutions duly passed by Shareholders at General Meeting |
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| 15 Dec | Crism Therapeutics Corporation CRTX | £7.1m | Fundraise | Result of Retail Offer
Further to the announcement by the Company in respect of the Retail Offer dated 10 December 2025, CRISM Therapeutics Corporation announces that, following the closing of the Retail Offer on the BookBuild platform today at 12.00 p.m., the Company has raised … |
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| 15 Dec | Cornish Metals PLC TIN | £128m | LAST DAY OF TRADING ON AIM AND RE-DOMICILE UPDATE
The Arrangement will result in the transfer all of the issued and outstanding common shares of the Company (each a "Cornish Canada Share") to Cornish Metals plc ("Cornish UK") in exchange for the issue to the Company's shareholders of new shares in Cornish UK … |
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| 15 Dec | Microsalt SALT | £18m | Director dealing | Admission, Director Dealings and TVR
MicroSalt plc (AIM:SALT), a leading provider of full-flavour, natural salt with approximately 50% less sodium, announces that further to the Company's "Subscription to raise £1.5 million" announcement released at 2:40 p.m. on 9 December 2025 and "Result of … |
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| 15 Dec | Ecora Resources ECOR | £402m | Cañariaco Project Update
("Alta Copper") announcing that they have entered into a binding agreement under which Fortescue proposes to acquire the remaining 64 per cent of Alta Copper's issued and outstanding common shares not already owned by Fortescue ("Transaction"). |
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| 15 Dec | Pantheon Resources PANR | £152m | Final Repayment of Convertible Bonds & Webinar
Final Repayment of Unsecured Convertible Bonds & upcoming webinar |
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| 15 Dec | Origin Enterprises (CDI) OGN | £362m | Re-issue of Treasury Shares
Dublin, London, 15 December 2025: Origin Enterprises plc ('Origin' or 'the Group'), the international group shaping the future of sustainable agriculture and land use, announces that it has transferred 2,359 treasury shares to satisfy the exercise of share … |
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| 15 Dec | Watkin Jones WJG | £38m | WJ & Maslow Capital announce £102m PBSA scheme
Watkin Jones and Maslow Capital announce £102m Bristol PBSA scheme |
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| 15 Dec | Borders & Southern Petroleum BOR | £100m | Exercise of Warrants
Borders & Southern Petroleum plc (AIM: BOR), the London based independent oil and gas exploration company with appraisal and exploration assets offshore the Falkland Islands, announces that it has received notification from a warrant holder to exercise … |
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| 15 Dec | Trafalgar Property Group TRAF | £7.0m | Cash shell / net cash above market value | Half-year Results
for the six months ended 30 September 2025 |
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| 15 Dec | Union Jack Oil UJO | £2.7m | Biscathorpe Planning Update - PEDL253
in accordance with the Company's obligations under Article 17 of MAR. |
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| 15 Dec | Pennpetro Energy PPP | £11m | Shareholder call
Pennpetro Energy plc, the company focused on developing strategic traditional and transition energy projects, announces a shareholder call with management on Wednesday 17th December 2025. |
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| 15 Dec | Helium One Group Ltd HE1 | £30m | Result of AGM
Helium One Global (AIM: HE1), the primary helium explorer in Tanzania with a 50% working interest in the Galactica-Pegasus helium development project in Colorado, USA, announces that at the Company's AGM held earlier today, all resolutions were carried. |
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| 15 Dec | First Tin 1SN | £73m | Admission of New Shares and Total Voting Rights
In accordance with the FCA's Disclosure Guidance and Transparency Rules ("DGTRs"), the Company confirms that following Admission at 8.00 a.m. today, it has in issue 541,868,306 ordinary shares of £0.001 and carrying one voting right each. |
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| 15 Dec | Haydale Graphene Industries HAYD | £19m | Result of Accelerated Bookbuild
Haydale (AIM:HAYD), the global advanced materials group, is pleased to announce that further to its announcement at 07:00 a.m. on 12 December 2025 (the "Launch Announcement"), it has completed the ABB which is now closed. |
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| 15 Dec | TT Electronics TTG | £334m | Disclosure Table
The following are today's changes to the Disclosure Table: |
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| 15 Dec | Quantum Helium Limited QHE | £7.2m | Sagebrush Resource Update
Quantum Updates Resources at Sagebrush Following Increase to Working Interest |
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| 15 Dec | Amigo Holdings AMGO | £34m | Offer | WRAP Retail Offer for up to £188,100
Amigo Holdings PLC is pleased to announce a retail offer through the Winterflood Retail Access Platform ("WRAP") to raise up to £188,100 (the "WRAP Retail Offer") through the issue of new ordinary shares of 0.25 pence each fully paid in the capital of Amigo … |
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| 15 Dec | New Frontier Minerals Limited NFM | £5.2m | Harts Range Drilling Campaign Nearing Completion
New Frontier Minerals Limited / Index: LSE & LSE / Epic: NFM / Sector: Industrial Metals and Mining |
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| 15 Dec | Amigo Holdings AMGO | £34m | Large acquisition / reverse takeover | Craig Ransley appointed Director & Executive Chair
1) Amigo had appointed Craig Ransley as a Board Consultant to help the Board the Board explore strategic options for Amigo to remain a listed company, specifically by identifying and pursuing a reverse takeover ("RTO") in the mining sector. |
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| 15 Dec | Conroy Gold & Natural Resources (CDI) CGNR | £7.2m | Drilling Programme Commences At Clontibret
First drill hole in a c.2,000m drilling programme now underway with a second drill rig to be mobilised to accelerate the programme |
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| 15 Dec | Elementis ELM | £1,046m | Completion of Buyback programme
Over the duration of the programme, the Group purchased 24,578,253 Ordinary Shares of 5p each, at a total consideration of £39,999,998.92 and an average price of 162.7455p. |
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| 15 Dec | Active Energy Group AEG | £4.9m | CoalSwitch® Strategy and Collaboration with ICE
Strategic Review of CoalSwitch® and Collaboration Agreement with ICE |
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| 15 Dec | Frontier IP Group FIPP | £13m | Portfolio news- Alusid £500k pre-IPO funding round
Portfolio news - Alusid raises £500,000 through pre-IPO funding round |
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| 15 Dec | Petards Group PEG | £5.2m | Defence Order
Petards, the AIM quoted developer of advanced security, communication and surveillance systems, announces that its subsidiary, Petards Joyce-Loebl (PJL), has received an order worth approximately £0.65 million from BAE Systems (Operations) Limited ("BAE"). |
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| 15 Dec | Mkango Resources MKA | £138m | Hypromag Usa Provides Positive Update To Valuation
Texas Facility Expansion Increases Magnet Capacity, Supports Domestic Critical-Minerals Supply Chains and Increases Post-Tax NPV to US$780 million (forecast prices) and US$409 million (current prices) |
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| 15 Dec | Physiomics PYC | £2.2m | Physiomics Awarded Follow On Contract by UK Client
Physiomics plc (AIM: PYC), a leading mathematical modelling, data science and biostatistics company supporting the development of new therapeutics and personalised medicine solutions, is pleased to announce a follow on contract with an existing UK … |
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| 15 Dec | Helium One Group Ltd HE1 | £30m | Production Facility Update at Galactica Project
· Gathering system has been successfully pressure tested and is now tied-in to the production facility |
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| 15 Dec | CleanTech Lithium CTL | £26m | Laguna Verde Indigenous Consultations Concluded
CleanTech Lithium PLC ("CTL", CleanTech Lithium" or the "Company") |
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| 15 Dec | BSF Enterprise BSFA | £2.2m | Fundraise | Changes to timetable for proposed Equity Fundraise
Further to the Company's announcements and despatch of the Notice of General Meeting on 28 November 2025, the Company provides an update on the proposed Equity Fundraise and Capital Reorganisation. |
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| 15 Dec | Kavango Resources KAV | £31m | JV Partner Sought for Kalahari Copper Belt
Joint Venture partner sought for Company's Kalahari Copper Belt Interests |
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| 15 Dec | Aterian ATN | £4.7m | New Prospecting Licence in Botswana
Aterian plc (LSE: ATN), the critical mineral exploration and development company focused on Africa, is pleased to announce that it has been granted a new Prospecting Licence ("PL") within the highly prospective Kalahari Copper Belt ("KCB") in the Republic of … |
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| 15 Dec | Cornish Metals PLC TIN | £128m | Receipt Of Final Order For Plan Of Arrangement
As previously disclosed by the Company, the Arrangement will result in the transfer all of the issued and outstanding common shares of the Company (each a "Cornish Canada Share") to Cornish Metals plc ("Cornish UK") in exchange for the issue to the Company's … |
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| 15 Dec | Orosur Mining Inc OMI | £62m | Consultants Exercise Options
("Orosur" or the "Company") (TSX/AIM:OMI), announces that it has issued 666,664 common shares of no par value ("Common Shares"), representing 0.17% of the Company's current issued share capital, following the exercise of options by consultants of the Company … |
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| 15 Dec | Zenova Group ZED | £0.8m | Board Changes & Appointment of Corporate Broker
Zenova Group PLC (AIM: ZED), the innovative fire suppression and interdiction solutions Company, announces the following board change. |
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| 15 Dec | The Smarter Web Company Plc SWC | £198m | Fundraise | Subscription Agreement Update
Subscription Agreement Update - No Shares Sold in the Period |
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| 15 Dec | Chariot Limited CHAR | £88m | Financing Completed for South Africa Wind Projects
Significant Financing Completed for South African Wind Projects |
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| 15 Dec | Mendell Helium plc MDH | £13m | Updated flow rate on Rost 1-26 well
Mendell Helium is pleased to announce an updated flow rate for M3 Helium Corporation's ("M3 Helium") Rost 1-26 well ("Rost") in Fort Dodge, Kansas. |
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| 15 Dec | Pantheon Resources PANR | £152m | Retirement of Director
The Board of Pantheon Resources plc (AIM: PANR, OTCQX: PTHRF) ("Pantheon", the "Group" or the "Company"), the oil and gas company developing the Kodiak and Ahpun oil fields immediately adjacent to pipeline and transportation infrastructure on Alaska's North … |
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| 15 Dec | Truetide plc TRUE | £2.2m | Board change | Directorate Change
Truetide plc (AIM: TRUE) announces that Dr Susan Hagan will step down from the Board as Non-Executive Director with effect from 31 December 2025. |
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| 15 Dec | Facilities by ADF ADF | £11m | New CEO / reset | Directorate Change
("Facilities by ADF", "ADF", the "Company" or the "Group") |
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| 15 Dec | Fevertree Drinks FEVR | £1,019m | Board change | Retirement of Non-Executive Director
Fever-Tree Drinks plc ("Fever-Tree" or "the Company") announces that Jeff Popkin will retire from his position as a Non-Executive Director of the Company on 31 December 2025, stepping down from the Board following eight years of service. |
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| 15 Dec | B.P. Marsh & Partners BPM | £235m | Special Dividend Declaration
Further to the announcement made on 28th October 2025, B.P. |
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| 15 Dec | Everyman Media Group EMAN | £45m | Board change | Directorate Change
Everyman Media Group plc (AIM: EMAN), the independent, premium cinema group, announces that Will Worsdell, Finance Director, has informed the Board of his decision to step down as a director of the Company to pursue another opportunity. |
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| 15 Dec | Chariot Limited CHAR | £88m | Financial Close on Two Wind Generation Projects
Financial Close Reached on Two Large Wind Generation Projects in South Africa |
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| 15 Dec | Mercia Asset Management MERC | £130m | Board change | Directorate Change
Mercia Asset Management PLC (AIM: MERC), the regionally focused, private capital asset manager with c.£2.0billion of assets under management, is pleased to announce the appointment of Penny Freer as a Non-executive Director of the Company with effect from … |
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| 15 Dec | Zotefoams ZTF | £246m | Notification Of Transactions Of Directors/PDMRs
The Company has received notification from MUFG Corporate Markets Trustees (UK) Limited, the Trustee of the Company's Share Incentive Plan (the 'SIP'), that on 11 December 2025 the following Director and Person Discharging Managerial Responsibilities became … |
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| 15 Dec | Cadence Minerals KDNC | £22m | Amapá Project Update
Amapá Project - Municipal Settlement, Technical Engagement and Development Progress Update |
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| 15 Dec | eEnergy Group EAAS | £1.5m | Upgrade / downgrade cycle | FY Trading Update
In addition, it provides an operational update on the rollout and mobilisation of its significant solar PV agreement announced on 1 September 2025. |
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| 15 Dec | Hydrogen Utopia International HUI | £10m | HUI Secures Exclusive InEnTec License
HUI Secures Exclusive InEnTec License for future large KSA Projects |
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| 15 Dec | Amigo Holdings AMGO | £34m | Results | Annual Report
Financial Results for the financial period ended 30 September 2025 |
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| 15 Dec | GreenRoc Strategic Materials Plc GROC | £10m | GreenRoc Consortium Receives £1.2m Danish Grant
GreenRoc Strategic Materials Plc / EPIC: GROC / Market: AIM / Sector: Mining |
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| 15 Dec | NeoTerra Group TERA | £7.1m | Monte Muambe Operational Update
Altona Rare Earths PLC (LSE: REE), a resource exploration and development company focused on critical raw materials in Africa, is pleased to provide an operational update on the Monte Muambe fluorspar, gallium and rare earths project in Mozambique. |
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| 15 Dec | Beeks Financial Cloud Group BKS | £120m | Exchange Cloud Win
Exchange Cloud win with newly consolidated Latin American exchange |
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| 15 Dec | Goldplat GDP | £35m | Legal & regulatory | Audited Results for the year ended 30 June 2025
Goldplat plc / Ticker: GDP / Index: AIM / Sector: Mining & Exploration |
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| 15 Dec | Buccaneer Energy PLC BUCE | £2.6m | Operational Update
Buccaneer Energy (AIM: BUCE), an international oil & gas exploration and production company with development and production assets in Texas, USA, is pleased to provide an operational update regarding the next phase of development in the Fouke area of the Pine … |
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| 15 Dec | Power Metal Resources POW | £13m | Results | Block 8 Oman: Drilling Programme Results
Power Metal Resources PLC (AIM: POW, OTCQB: POWMF), the London listed exploration company and project incubator with a global project portfolio, and its majority held subsidiary Power Arabia Ltd ("Power Arabia"), are pleased to provide an update on the maiden … |
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| 15 Dec | Thor Explorations Ltd THX | £367m | Result of AGM
Vancouver, British Columbia--(Newsfile Corp. - December 12, 2025) - Thor Explorations Ltd. |
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| 15 Dec | Switch Metals Plc SWT | £6.9m | Commissioning of Pilot Wash Plant Completed
Switch Metals (LSE: SWT), the critical metals focused mining company operating in Côte d'Ivoire, is pleased to announce that commissioning of its pilot wash plant at the Issia Project has been completed and the plant is now fully operational. |
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| 15 Dec | Braemar BMS | £78m | Issue of Shares
Braemar Plc (LSE: BMS), a leading provider of expert investment, chartering and risk management advice to the shipping and energy markets, today announces that an application has been made to the Financial Conduct Authority ("FCA") and to the London Stock … |
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| 15 Dec | Filtronic FTC | £629m | Major European defence prime selects Filtronic
Major European defence prime selects Filtronic for next phase of electronic sensor programme |
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| 15 Dec | Technologies New Energies plc TNE | £34m | Strategic Agreement to Develop 1GW Data Centre
Strategic Agreement Signed with Data District Inc. to Develop 1GW of AI-Optimised Data Centre Capacity in Alberta, Canada |
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| 15 Dec | Porvair PRV | £404m | Year end trading update and notice of results
Porvair, the specialist filtration, laboratory and environmental technology group, announces the following trading update for the year ended 30 November 2025. |
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| 15 Dec | Resolute Mining Limited RSG | £1,220m | Project milestones | Updated Doropo DFS
Resolute Mining Limited ("Resolute" or "the Company") (ASX/LSE: RSG), the Africa-focused gold miner, is pleased to announce results of the updated Definitive Feasibility Study ("DFS") for the Doropo Gold Project ("Doropo" or the "Project") in Côte d'Ivoire. |
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| 15 Dec | TT Electronics TTG | £334m | Offer | No intention to make an offer for TT Electronics
On 9 December 2025, DBAY announced that it was considering a possible offer for the entire issued and to be issued ordinary shares of TT Electronics (save for those already owned by funds managed or advised by DBAY). |
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| 15 Dec | Capita CPI | £344m | Statement re Exercise of settlement option
Further to the announcement on 12 December 2025 regarding the transition agreement for the remaining two closed book Life & Pensions contracts, with its last client, Royal London’s legacy business, Capita confirms that the settlement option pursuant to that … |