| AZN | AstraZeneca PLC | £186.2B |
| GSK | GSK plc | £74.0B |
| HLN | Haleon PLC | £31.0B |
| SN | Smith & Nephew PLC | £8.9B |
| CTEC | ConvaTec Group PLC | £4.4B |
| HIK | Hikma Pharmaceuticals PLC | £3.3B |
| HCM | HUTCHMED China Ltd | £1.8B |
| ONT | Oxford Nanopore Technologies Ltd | £1.6B |
| GNS | Genus PLC | £1.5B |
| SPI | Spire Healthcare Group Plc | £953M |
| UPR | Uniphar Group PLC | £946M |
| CVSG | CVS Group Plc | £895M |
| AMS | Advanced Medical Solutions Group plc | £611M |
| OXB | Oxford BioMedica PLC | £527M |
| CRW | Craneware Plc | £477M |
| IBT | International Biotechnology Trust plc | £355M |
| AGY | Allergy Therapeutics | £332M |
| AVCT | Avacta Group PLC | £316M |
| IDHC | Integrated Diagnostics Holdings PLC | $300M |
| PRTC | PureTech Health plc | £298M |
| NIOX | NIOX Group PLC | £285M |
| OPT | Optima Health plc | £265M |
| ANCR | Animalcare Group Plc | £231M |
| TSTL | Tristel | £198M |
| MXCT | MaxCyte Inc | £162M |
| AOTI | AOTI Inc | £133M |
| DXRX | Diaceutics PLC | £124M |
| EKF | EKF Diagnostics Holdings Plc | £108M |
| SPEC | Inspecs Group plc | £105M |
| SCLP | Scancell Hldgs Plc | £99M |
| BVXP | Bioventix | £89M |
| FARN | Faron Pharmaceuticals Oy | £77M |
| 4BB | 4BASEBIO UK SOCIETAS | £74M |
| KOO | Kooth plc | £67M |
| EAH | Eco Animal Health Group Plc | £65M |
| POLB | Poolbeg Pharma PLC | £63M |
| CREO | Creo Medical Group PLC | £63M |
| STX | Shield Therapeutics plc | £59M |
| OBI | Ondine Biomedical Inc | £58M |
| HVO | hVIVO plc | £47M |
| SAR | Sareum Hldgs Plc | £47M |
| MPAL | MEDPAL AI PLC ORD 0.02P | £40M |
| BVC | Batm Advanced Communications Ltd | £40M |
| OHGR | One Health Group Plc | £39M |
| COIL | Coiled Therapeutics plc | £36M |
| HEMO | Hemogenyx Pharmaceuticals PLC | £35M |
| NCYT | Novacyt | £32M |
| AREC | Arecor Therapeutics PLC | £29M |
| ABDX | Abingdon Health Plc | £27M |
| PXS | Provexis plc | £25M |
| SBTX | SkinBioTherapeutics PLC | £25M |
| IMM | ImmuPharma PLC | £22M |
| GDR | genedrive plc | £22M |
| RENX | Renalytix AI plc | £18M |
| RUA | Rua Life Sciences PLC | £17M |
| IHC | Inspiration Healthcare Group PLC | £17M |
| COG | Cambridge Cognition Holdings Plc | £17M |
| MDH | Mendell Helium plc | £17M |
| IXI | IXICO PLC | £16M |
| FAB | Fusion Antibodies PLC | £15M |
| APTA | Aptamer Group PLC | £13M |
| CLBX | CelLBxHealth plc | £13M |
| GENF | Genflow Biosciences plc | £12M |
| THAT | Thalia Therapeutics Plc | £11M |
| CRTX | CRISM Therapeutics Corporation | £9M |
| SVNS | Solvonis Therapeutics plc | £8M |
| GENI | Genincode PLC | £8M |
| CIZ | Cizzle Biotechnology Holdings PLC | £6M |
| OPTI | OptiBiotix Health Plc | £6M |
| VRCI | Verici Dx Plc | £5M |
| OBD | Oxford Biodynamics PLC | £5M |
| PRM | Proteome Sciences PLC | £5M |
| CNSL | Cambridge Nutritional Sciences plc | £4M |
| N4P | N4 Pharma PLC | £4M |
| NFX | Nuformix plc | £4M |
| TCF | Theracryf Plc | £4M |
| SUN | Surgical Innovations Group plc | £4M |
| FDBK | Feedback PLC | £3M |
| PYC | Physiomics Plc | £2M |
| BSFA | BSF Enterprise Plc | £2M |
| VAL | ValiRx plc | £2M |
| FUM | Futura Medical | £2M |
| ROQ | Roquefort Investments PLC | £2M |
| KNB | Kanabo Group PLC | £1M |
| CHLL | Chill Brands Group PLC | — |
| TRLS | Trellus Health plc | — |