UK small-cap RNS · 18 Mar 2026

The key announcements of UK small & mid caps under £2bn on 18 Mar 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
18 Mar	Harena Resources plc HREE	£19m	Holding	Holding(s) in Company
18 Mar	Filtronic FTC	£629m	Holding	Holding(s) in Company
18 Mar	Light Science Technologies Holdings LST	£10m	Holding	Holding(s) in Company
18 Mar	Trainline TRN	£733m	Holding	Holding(s) in Company
18 Mar	Permanent TSB Group Holdings (CDI) PTSB	£1,379m	Holding	Holding(s) in Company
18 Mar	Kainos Group KNOS	£1,468m	Holding	Holding(s) in Company
18 Mar	Red Rock Resources RRR	£1.6m	Holding	Holding(s) in Company
18 Mar	Celebrus Technologies CLBS	£20m	Holding	Holding(s) in Company
18 Mar	Tialis Essential IT TIA	£17m	Holding	Holding(s) in Company
18 Mar	Jupiter Fund Management JUP	£870m	Holding	Holding(s) in Company
18 Mar	Corpus Resources Plc COR	£0.7m	Holding	Holding(s) in Company
18 Mar	Renalytix RENX	£36m	Holding	Holding(s) in Company
18 Mar	Inspecs Group SPEC	£98m	Holding	Holding(s) in Company
18 Mar	Tungsten West TUN	£621m	Holding	Holding(s) in Company
18 Mar	PPHE Hotel Group Ltd PPH	£608m	Holding	Holding(s) in Company
18 Mar	Breedon Group BREE	£1,136m	Holding	Holding(s) in Company
18 Mar	Capita CPI	£344m	Holding	Holding(s) in Company
18 Mar	Norman Broadbent NBB	£4.7m	Holding	Holding(s) in Company
18 Mar	Jangada Mines JAN	£5.6m	Holding	Holding(s) in Company
18 Mar	Caledonia Mining Corporation CMCL	£341m	Holding	Holding(s) in Company
18 Mar	Southern Energy Corp. SOUC	£13m	Holding	Holding(s) in Company
18 Mar	Yellow Cake YCA	£1,331m	Holding	Holding(s) in Company