UK small-cap RNS · 16 Dec 2025
The key announcements of UK small & mid caps under £2bn on 16 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 | |
|---|---|---|---|---|---|
| 16 Dec | Fuller Smith & Turner FSTA | £400m | Fuller, Smith & Turner PLC:
Fuller, Smith & Turner PLC (FSTA) Fuller, Smith & Turner PLC: 16-Dec-2025 / 17:54 GMT/BST Fuller, Smith & Turner P.L.C. |
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| 16 Dec | Guardian Metal Resources plc GMET | £193m | U.S. Listing Update
Further to the announcement dated 8 September 2025, Guardian Metal Resources PLC (LON: GMET), a tungsten exploration and development company, is making good progress with its plans to undertake an offering of American Depositary Shares ("ADSs"), with each ADS … |
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| 16 Dec | Inspecs Group SPEC | £98m | Statement regarding Inspecs Group plc - Amendment
The following amendment has been made to the announcement 'Statement regarding Inspecs Group plc' released on 16 December 2025 at 10:13 under RNS No 7694L. |
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| 16 Dec | Grainger GRI | £1,314m | Publication of the Notice of AGM 2026
Following the publication of our 2025 Annual Report and Accounts on our website on 20 November 2025, we have today published our Notice of AGM. |
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| 16 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 141,000 of its ordinary shares of 1p each in the capital of the Company ("Ordinary Shares") at a weighted average price of 23.5 … |
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| 16 Dec | Premier African Minerals Ltd PREM | £2.2m | Canmax Interest Conversion
Premier African Minerals Limited ("Premier" or the "Company") announces that Canmax Technologies Co., Ltd ("Canmax") has elected to convert £77,233.89 (approximately US$103,246.26) of accrued interest due under the Restated and Amended Offtake and Prepayment … |
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| 16 Dec | Haydale Graphene Industries HAYD | £19m | Fundraise | Result of Retail Offer
The Board of Haydale Graphene Industries Plc (the "Company") is pleased to announce that the Retail Offer launched on 12 December 2025 has now closed, raising in total £0.50 million through the issuance of 100,000,000 Retail Shares at a price of 0.5 pence … |
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| 16 Dec | Origin Enterprises (CDI) OGN | £362m | Re-issue of Treasury Shares
Dublin, London, 16 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 11,486 treasury shares to satisfy the exercise of share … |
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| 16 Dec | Blencowe Resources BRES | £31m | Exercise of Warrants
The Company has received notices for an aggregate of 9,066,667 warrants resulting from the exercise of 5,750,000 warrants at the issue prices of 6p and 3,316,667 warrants at the issue price of 4.5p resulting in the receipt of approximately £494,000. |
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| 16 Dec | Fusion Antibodies FAB | £8.1m | Launch of OptiMAL platform
Launch of the OptiMAL® Human Antibody Discovery platform |
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| 16 Dec | Oxford Metrics OMG | £38m | Change in Accounting Reference Date
Oxford Metrics plc (LSE: OMG), the smart sensing and software company servicing life sciences, entertainment, engineering and smart manufacturing markets, announces that the Company intends to change to its accounting reference date and financial year end … |
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| 16 Dec | Inspecs Group SPEC | £98m | Disclosure Table
The following are today's changes to the Disclosure Table: |
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| 16 Dec | Aptamer Group APTA | £11m | Licensing agreement with Twist Bioscience
Non-exclusive license for Optimer® binder targeting the next-generation sequencing market |
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| 16 Dec | Inspecs Group SPEC | £98m | Statement regarding Inspecs Group plc
Further to the announcements made by Inspecs on 23 October 2025 and 20 November 2025 regarding a possible offer for Inspecs, H2 Equity Partners Limited, acting in its capacity as investment adviser to its affiliated investment manager and investment funds … |
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| 16 Dec | Cornish Metals PLC TIN | £128m | Cornish Metals Completes Redomicile To UK
As previously disclosed by Cornish Canada, the Arrangement resulted in the transfer of all the issued and outstanding common shares of Cornish Canada (each a "Cornish Canada Share") to Cornish UK in exchange for the issue to the shareholders of the Company of … |
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| 16 Dec | Sirius Real Estate Ltd. SRE | £1,472m | Director dealing | Director/PDMR Shareholding
Notification of a transaction by a Person Discharging Managerial Responsibilities ("PDMR") |
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| 16 Dec | Wellnex Life Limited WNX | £4.0m | Turnaround plan with targets | Trading Update
Wellnex Life Limited (ASX/AIM:WNX) ("Wellnex Life" or the "Company") announces that Executive Chairman, Ash Vesali, has today provided the following update to shareholders. |
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| 16 Dec | Jersey Electricity 'A' Shares JEL | £135m | Results | Annual Report
A final dividend of 12.60p on the Ordinary and 'A' Ordinary shares in respect of the year ended 30 September 2025 was recommended (2024: 12.00p). |
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| 16 Dec | Cornish Metals PLC TIN | £128m | Suspension - Cornish Metals Inc. | ||
| 16 Dec | Alien Metals Limited UFO | £8.3m | Board change | Appointment of Non-Executive Director
Alien Metals Limited (AIM: UFO), a minerals exploration and development company, is pleased to announce that, further to the Company's announcement on 11 December 2025, Mr Michael Carter has been appointed to the Board as an independent Non-Executive Director … |
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| 16 Dec | RM RM. | £97m | RM plc Director Declaration | ||
| 16 Dec | Diversified Energy Company DEC | £762m | Q2 2025 Dividend Exchange Rate
Diversified Energy Company (NYSE:DEC; LSE:DEC) announced on August 11, a dividend in respect of the second quarter ended June 30, 2025 in the amount of 29 cents per share (the “Q2 2025 Dividend”.) The Company will pay the Q2 2025 Dividend on December 31, … |
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| 16 Dec | Science Group SAG | £229m | Corporate Brokers
With immediate effect, Peel Hunt LLP has been appointed as joint corporate broker to Science Group plc, alongside Panmure Liberum Limited. |
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| 16 Dec | Caledonia Mining Corporation CMCL | £341m | Utilisation of block admission in respect of ATM
St Helier, December 16, 2025 - In accordance with Rule 29 of the AIM Rules for Companies ("the AIM Rules"), Caledonia Mining Corporation Plc ("Caledonia" or "the Company") gives below the information required by Schedule Six of the AIM Rules in connection … |
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| 16 Dec | Wishbone Gold WSBN | £6.3m | Investor Interview with focusIR
Wishbone Gold Plc (AIM and AQSE: WSBN) is pleased to announce that its Chairman and CEO, Richard Poulden together with Wishbone Gold WA Pty Ltd Director, Edward Mead discuss recent developments with the Red Setter Gold Dome Project, with focusIR. |
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| 16 Dec | Invinity Energy Systems IES | £101m | First Phase of 20.7 MWh UK Project Delivered
Invinity Copwood VFB Energy Hub, formerly known as the LoDES Project, will be largest in Europe once operational |
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| 16 Dec | Ondine Biomedical Inc. OBI | £55m | Ondine shortlisted for HSJ Partnership Award
HSJ Partnership Award Finalists: Ondine Biomedical and Mid Yorkshire Teaching NHS Trust for Cutting Post-surgical Infection Rates |
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| 16 Dec | Hunting HTG | £594m | Extension of Share Buyback Programme
Extension of Share Buyback Programme by up to $20 million |
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| 16 Dec | Genflow Biosciences GENF | £10m | Completion of Dosing Phase of Canine Gene Therapy
Genflow Completes Dosing Phase of Canine Gene Therapy Trial |
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| 16 Dec | Sovereign Metals Limited SVML | £161m | Project milestones | World Bank Group's IFC to Collaborate with SVM
· Collaboration Agreement signed with International Finance Corporation (IFC), a member of the World Bank Group, to support the sustainable development of Kasiya. |
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| 16 Dec | BSF Enterprise BSFA | £2.2m | 3D Bio-Tissues Signs Supply Agreement with SeaWith
The agreement will see 3DBT deliver commercial supplies of City-Mix®, the company's premium macromolecular crowder for cell culture, to SeaWith to help reduce the cost and scale production of its cultivated beef product. |
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| 16 Dec | Active Energy Group AEG | £4.9m | Optimisation of Digital Infrastructure Capacity
Optimisation of Spare Digital Infrastructure Capacity and Treasury Management |
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| 16 Dec | Fulcrum Metals FMET | £11m | Investee Company Update: Terra Balcanica
Fulcrum Metals plc / EPIC: FMET / Market: AIM / Sector: Mining |
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| 16 Dec | Tertiary Minerals TYM | £4.3m | Intent to Produce Target for Cu-Ag, Mushima North
Intent to Produce an Exploration Target for Copper-Silver Target A1, Mushima North Project, Zambia |
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| 16 Dec | PPHE Hotel Group Ltd PPH | £608m | Refinancing of Park Plaza Victoria London
PPHE Hotel Group, the international hospitality real estate group which develops, owns and operates hotels and resorts, is pleased to announce that it has entered into an agreement to refinance Park Plaza Victoria London (the "Hotel"). |
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| 16 Dec | Allergy Therapeutics AGY | £285m | Grassmuno® marketing authorisation in Germany
("Allergy Therapeutics" or the "Company" or the "Group") |
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| 16 Dec | Fulcrum Metals FMET | £11m | Completion of expanded auger drilling programme
Fulcrum Metals plc / EPIC: FMET / Market: AIM / Sector: Mining |
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| 16 Dec | Pathos Communications plc NEWS | £17m | Upgrade / downgrade cycle | First Day of Dealings on AIM
Pathos Communications, the technology-enabled, human-led PR company, is pleased to announce that the admission of its ordinary shares of 0.1 pence each ("Ordinary Shares") to trading on the AIM Market of the London Stock Exchange will take place today … |
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| 16 Dec | Tavistock Investments TAVI | £8.4m | Update re ongoing litigation with Titan
Further to the disclosures made in the Company's financial statements for the year ended 31 March 2025 and the announcement released by the Company on 2 October 2025, Tavistock today provides an update on the ongoing litigation with Titan Wealth Services … |
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| 16 Dec | Oriole Resources ORR | £13m | Project milestones | Preliminary Economic Assessment for Bibemi Project
Preliminary Economic Assessment for the Bibemi Gold Project, Cameroon to support Exploitation Licence Application Process |
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| 16 Dec | Arkadian Strategic Metals Plc AKN | £2.1m | Revised Date for Admission of Shares to Trading
Alba Mineral Resources Plc / EPIC: ALBA / Market: AIM / Sector: Mining |
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| 16 Dec | Saga SAGA | £1,141m | Saga and Ageas Insurance partnership goes live
Saga plc (Saga) is pleased to announce that its 20-year motor and home insurance partnership (the Affinity Partnership) with Ageas UK, wholly-owned subsidiary of Ageas SA/NV (Ageas) has now gone live. |
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| 16 Dec | Oxford Biodynamics OBD | £15m | Preliminary Results and Notice of AGM
("OBD" or the "Company" and, together with its subsidiaries, the "Group") |
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| 16 Dec | Frontier Developments FDEV | £188m | Board change | CEO Transition
Frontier Developments plc (AIM: FDEV, 'Frontier' or the 'Company'), a leading developer and publisher of video games based in Cambridge, UK, announces that CEO Jonny Watts has informed the Board that he plans to step down from the Board for personal reasons, … |
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| 16 Dec | Critical Metals CRTM | £66m | Board change | Directorate Change
Critical Metals plc / EPIC: CRTM / Market: Main Market |
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| 16 Dec | EKF Diagnostics Holdings EKF | £107m | Board change | Executive Chair share purchase
EKF Diagnostics Holdings plc (AIM: EKF), the AIM-listed global diagnostics business, announces that on Monday 15 December, Julain Baines, Executive Chair, purchased a total of 85,000 ordinary shares of 1 pence each in the Company ("Ordinary Shares") at a … |
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| 16 Dec | Eagle Eye Solutions Group EYE | £144m | Director share options amendment
Eagle Eye, a leading SaaS and AI technology company that creates digital connections enabling personalised, real-time marketing at scale, announces an amendment to its existing share option agreements with CEO Tim Mason and CFO Lucy Sharman-Munday in respect … |
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| 16 Dec | Manx Financial Group MFX | £27m | Exercise of RSU's, Issue of Equity and TVR
Exercise of Restricted Stock Units, Issue of Equity and TVR |
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| 16 Dec | Serica Energy SQZ | £1,097m | Acquisition of assets from Spirit Energy
Serica Energy plc (AIM: SQZ) is pleased to announce the entry into a sale and purchase agreement, via two of its newly acquired subsidiaries following the completion of the Prax Upstream transaction, to acquire a portfolio of Southern North Sea assets[1] (the … |
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| 16 Dec | GEO Exploration Limited GEO | £4.5m | Capital Raise of £1,250,000
GEO Exploration Limited (LSE AIM: GEO) is pleased to announce that it has successfully completed a capital raise (the "Fundraise"), raising £1.25 million before expenses through the placing of 694,444,444 new Ordinary Shares at a price of 0.18 pence per share. |
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| 16 Dec | Medpal AI PLC MPAL | £46m | Update on ATM Facility
The Company has raised gross proceeds of approximately £498,225 via the ATM facility through the issue of 7,500,000 new ordinary shares ("ATM Shares") at an average price of 6.643p per ATM Share. |
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| 16 Dec | Watkin Jones WJG | £38m | Results | Final Results
Full Year Results for the year ended 30 September 2025 |
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| 16 Dec | Kelso Group Holdings KLSO | £19m | Fundraise | Upsizing of Placing and Subscription
Kelso, the main market listed investment vehicle, today announces that the £1m Fundraising, announced at 4:35pm on 15 December 2025, is being upsized. |
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| 16 Dec | SThree STEM | £381m | Trading update | FY25 Full Year Trading Update
SThree plc ("SThree" or the "Group"), the global STEM workforce consultancy, today issues a trading update for the financial year ended 30 November 2025. |
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| 16 Dec | Quantum Data Energy PLC QDE | £5.8m | 2025 A Remarkable Year in Review
London, UK - Quantum Data Energy PLC (LSE: MAST) is pleased to announce an overview of the key progress and milestones achieved during 2025. |
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| 16 Dec | Touchstar TST | £5.6m | Turnaround plan with targets | Trading Update
Trading update for the year ending 31 December 2025 (FY25) |
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| 16 Dec | Jangada Mines JAN | £5.6m | Exercise of Warrants and Total Voting Rights
Jangada Mines plc / EPIC: JAN.L / Market: AIM / Sector: Mining |
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| 16 Dec | Goodwin Plc GDWN | £1,069m | Disposal of a part (break-up) | Half-year Results
for the half year ended 31st October 2025 |
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| 16 Dec | Pennpetro Energy PPP | £11m | Company update
Pennpetro Energy plc, the company focused on developing strategic traditional and transition energy projects, announces the promotion of Mavriky Kalugin to the role of Chief Executive Officer, and Richard Spinks to Executive Chairman with immediate effect, … |
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| 16 Dec | Hollywood Bowl Group BOWL | £445m | Results | Final Results
Final Results for the Year Ended 30 September 2025 |
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| 16 Dec | Time Finance TIME | £54m | Half-Year Trading Update & Notice of Results
Notice of full Interim Results and Investor Presentation |