UK small-cap RNS · 17 Sep 2026

The key announcements of UK small & mid caps under £2bn on 17 Sep 2026 – 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
17 Sep	Acg Acquisition Company Limited Cls A ACG	£417m		Material Uplift in Gediktepe NPV to US$1.2bn ACG Metals Limited ("ACG" or the "Company") announces updated Mineral Resource and Ore Reserve estimates and the publication of an updated Competent Person's Report for its Gediktepe mine (the "2026 CPR").
17 Sep	CEPS CEPS	£8.2m	Results	Half-year Results The Board is pleased to announce its unaudited half-yearly report for the six months ended 30 June 2026.
17 Sep	IWG IWG	£1,745m	Routine	Transaction in Own Shares
17 Sep	SThree STEM	£358m	Routine	Transaction in Own Shares & Rule 2.9 Announcement
17 Sep	Anglo-Eastern Plantations AEP	£601m	Routine	Transaction in Own Shares
17 Sep	Fadel Partners Inc FADL	£4.9m	Turnaround plan with targets	Half-year Results ('FADEL', the 'Company' or, together with its subsidiaries, the 'Group')
17 Sep	AB Dynamics ABDP	£182m	Upgrade / downgrade cycle	Pre-close Trading Update AB Dynamics plc (AIM: ABDP, the 'Company', or the 'Group'), the designer, manufacturer and supplier of advanced testing, simulation and measurement products and services to the global transport market, is pleased to provide a trading update in respect of the …
17 Sep	EDX Medical Group Plc EDX	£37m		Employee health contract with Arnold Clark Group The Arnold Clark Group employs 11,600 people across 200 locations in the UK.
17 Sep	Somero Enterprises Inc. SOM	£152m	Routine	Transaction in Own Shares and Total Voting Rights
17 Sep	Greencoat Renewables (CDI) GRP	£714m	Routine	Transaction in Own Shares
17 Sep	Shoe Zone SHOE	£34m	Routine	Transaction in Own Shares
17 Sep	Faron Pharmaceuticals Oy FARN	£66m	Holding	Holding(s) In Company
17 Sep	Diversified Energy Company DEC	£761m		Q1 2026 Dividend Exchange Rate - Corrected 17, 2026 (GLOBE NEWSWIRE) -- Diversified Energy Company (NYSE:DEC; LSE:DEC) announced on May 6, 2026, a dividend in respect of the first quarter ended March 31, 2026, in the amount of 29 cents per share (the “Q1 2026 Dividend”).
17 Sep	Bytes Technology Group BYIT	£1,042m	Upgrade / downgrade cycle	Half Year Trading Update Bytes Technology Group, one of the UK and Ireland's leading software, security, AI and cloud services specialists, is pleased to provide the following update on trading for its financial half year ended 31 August 2026 ("H1 FY27").
17 Sep	Caledonia Investments CLDN	£1,872m	Routine	Transaction in Own Shares
17 Sep	Mindflair MFAI	£1.3m	Results	Half-year Results Unaudited interim results for the six months ended 30 June 2026
17 Sep	Globaldata DATA	£422m	Routine	Transaction in Own Shares
17 Sep	OptiBiotix Health OPTI	£5.8m	Turnaround plan with targets	Half-year Results OptiBiotix Health plc (AIM: OPTI), a life sciences business developing products which reduce hunger and food cravings, enhance the gut microbiome, and sweet fibres as healthy sugar substitute announces its unaudited results for the six months ended 30 June …
17 Sep	Clean Power Hydrogen CPH2	£12m	Routine	Issue of Equity
17 Sep	Windar Photonics WPHO	£8.5m	Fundraise	Result of Retail Offer & Total Voting Rights Each Retail Offer Share carries an entitlement to one warrant for every Retail Offer Share subscribed.
17 Sep	Winking Studios Limited WKS	£60m	Routine	Transaction in Own Shares
17 Sep	Atlantic Lithium Limited ALL	£111m	Project milestones	Scheme Update - FIRB Approval received FIRB approval received for Huayou's acquisition of Atlantic