The following transactions represent the most significant UK-connected healthcare M&A activity in 2025 and 2026. All deal values and details are sourced from primary announcements, regulatory filings and institutional research as cited. Healthcare Investor Magazine makes no representation that all transactions are included — this tracker covers significant disclosed transactions relevant to UK healthcare investors.
HEALTHCARE REAL ESTATEWelltower acquires Barchester Healthcare
£5.2 billion
2025
Welltower (acquirer) · Barchester Healthcare (target)
US REIT Welltower acquired Barchester Healthcare — one of the UK's largest care home operators — in a transaction covering 284 elderly care assets, structured under long-term RIDEA and triple-net lease arrangements. The deal is one of the largest care home transactions ever completed globally and represents Welltower's most significant single UK investment. Welltower alone deployed over £7 billion into UK healthcare in 2025, with the Barchester acquisition the centrepiece.
Source: Savills UK Healthcare Roundup and 2026 Outlook; CBRE UK Operational Real Estate Outlook 2026
PHARMA · LIFE SCIENCESEli Lilly acquires Centessa Pharmaceuticals
Up to $7.8 billion
March–April 2026
Eli Lilly (acquirer) · Centessa Pharmaceuticals (target, UK-based)
Eli Lilly agreed to acquire UK-based neuroscience company Centessa Pharmaceuticals in a deal valued at up to $7.8 billion. Lilly paid $38 per share — a 37% premium over Centessa's NASDAQ closing price — with additional contingent value rights of $9 per share worth up to $1.5 billion subject to regulatory milestones for lead drug candidate cleminorexton, a treatment for excessive daytime sleepiness and narcolepsy. The transaction reinforces the strategic value of UK-originated neuroscience assets to large-cap international pharma.
Source: HealthCare MEA; Irwin Mitchell Life Sciences Update May 2026; BioSpace April 2026
HEALTHCARE SERVICESSovereign Capital Partners acquires Apollo Home Healthcare
Undisclosed
February 2026
Sovereign Capital Partners (acquirer) · Apollo Home Healthcare (target)
Private equity firm Sovereign Capital Partners acquired Apollo Home Healthcare — a complex care provider supporting adults and children nationally across the UK — in February 2026. Grant Thornton provided financial due diligence on the transaction. The deal reflects continued PE appetite for complex care and community health platforms with NHS-backed revenue and demographic-driven demand tailwinds.
Source: Grant Thornton Healthcare and Pharma Services M&A Review Spring 2026
HEALTHCARE REAL ESTATEBlue Owl Capital acquires Spire Healthcare hospital portfolio
c. £1.3 billion
Q4 2025 — completion unconfirmed
Blue Owl Capital (acquirer) · Employees Provident Fund Malaysia (seller) · Spire Healthcare (operator)
Blue Owl Capital was reported in November 2025 to be in talks to acquire a 12-asset UK private hospital real estate portfolio operated by Spire Healthcare under long-term net leases, from Malaysia's Employees Provident Fund. The reported transaction value of approximately £1.3 billion would mark Blue Owl's entry into UK healthcare real estate. Separately, Spire Healthcare initiated a strategic review of the wider group including a potential corporate sale, with expressions of interest requested by 20 January 2026. Interest from Bridgepoint and Triton subsequently fell away, causing an 18% share price drop in March 2026. Discussions with other parties are reported to be continuing.
Source: Savills UK Healthcare Roundup 2026; Grant Thornton Spring 2026
HEALTHCARE SERVICESNarayana Health acquires Practice Plus Group secondary care business
c. £189 million
October 2025
Narayana Health (acquirer) · Practice Plus Group (seller)
Indian hospital group Narayana Health acquired the secondary care business of Practice Plus Group for approximately £189 million in October 2025, marking a significant inbound international acquisition of UK private acute care infrastructure. The transaction signals growing international strategic interest in UK private hospital assets, particularly from Asian healthcare operators seeking a European platform.
Source: Savills UK Healthcare Roundup and 2026 Outlook February 2026
PHARMAGSK acquires RAPT Therapeutics
£1.7 billion
Q1 2026
GSK (acquirer) · RAPT Therapeutics (target)
GSK agreed to acquire clinical-stage oncology company RAPT Therapeutics for £1.7 billion in Q1 2026 — one of the largest UK-connected pharma acquisitions of the quarter. The deal reflects GSK's continued investment in oncology pipeline expansion and the broader trend of large-cap pharma using M&A to rebuild pipelines ahead of patent cliff revenue losses.
Source: Business Sale Report; Manufacturing Chemist June 2026
MEDTECHSmith & Nephew acquires Integrity Orthopaedics
£450 million
Q1 2026
Smith & Nephew (acquirer) · Integrity Orthopaedics (target)
FTSE 100 medical technology company Smith & Nephew completed a £450 million takeover of Integrity Orthopaedics in Q1 2026, reinforcing the UK medtech giant's orthopaedics portfolio through inorganic growth. The transaction is part of Smith & Nephew's ongoing strategic programme of bolt-on acquisitions to strengthen its position in high-growth orthopaedic subsegments.
Source: Business Sale Report; Manufacturing Chemist June 2026
LIFE SCIENCESAmgen acquires Dark Blue Therapeutics
£626 million
2025–2026
Amgen (acquirer) · Dark Blue Therapeutics (target, UK-based)
Amgen acquired UK-based Dark Blue Therapeutics for £626 million, adding to the growing list of US pharma majors acquiring UK biotech assets. The transaction, alongside Eli Lilly's acquisition of Centessa, reinforces the depth of international appetite for UK-originated drug discovery assets — and the strategic value that the UK's scientific base commands in global pharma portfolio construction.
Source: BiotechFinance.org; CBRE UK Life Sciences Outlook 2026
LIFE SCIENCES · PHARMAMerck acquires Terns Pharmaceuticals
$6.7 billion
Q1 2026
Merck (acquirer) · Terns Pharmaceuticals (target)
Merck agreed to acquire Terns Pharmaceuticals for $6.7 billion, securing its oral leukemia candidate TERN-701 currently under FDA review. Part of a broader Q1 2026 biopharma M&A surge that saw approximately $47 billion deployed across 19 deals in the quarter — the highest quarterly biopharma M&A total on record. Reflects the patent cliff-driven acquisition mandate across large-cap pharma.
Source: BioSpace April 2026; Irwin Mitchell May 2026
LIFE SCIENCESBiogen acquires Apellis Pharmaceuticals
$5.6 billion
Q1 2026
Biogen (acquirer) · Apellis Pharmaceuticals (target)
Biogen committed $5.6 billion to acquire Apellis Pharmaceuticals and its pair of approved drugs — Syfovre and Empaveli — in Q1 2026. Part of the record $47 billion biopharma M&A quarter that included Merck/Terns and Lilly/Centessa. Reflects global pharmaceutical companies accelerating acquisitions of revenue-generating assets ahead of patent cliff exposures.
Source: BioSpace April 2026; M&A Advisors April 2026
HEALTHCARE SERVICESMars Petcare acquires Linnaeus
Undisclosed
2025
Mars Petcare (acquirer) · Linnaeus (target)
Mars Petcare acquired Linnaeus — one of the UK's leading veterinary referral and specialist hospital networks — adding referral depth to its first-opinion veterinary network. The acquisition illustrates multilevel integration strategies across the UK animal health sector, combining GP-level veterinary practices with specialist referral centres and diagnostics under single ownership. Reflects continued strategic consolidation in UK animal health.
Source: Mordor Intelligence UK Veterinary Healthcare Market 2026
PHARMA · LIFE SCIENCESGilead acquires Arcellx
c. $7.8 billion
Q1 2026
Gilead (acquirer) · Arcellx (target)
Gilead agreed to acquire Arcellx — a blood cancer specialist — in one of the largest biopharma transactions of Q1 2026, matched in value by Eli Lilly's acquisition of Centessa Pharmaceuticals in the same week. The Gilead/Arcellx and Lilly/Centessa announcements, alongside Merck/Terns, concentrated more than $20 billion in biopharma deal value within a single week in late March 2026.
Source: M&A Advisors April 2026; BioSpace April 2026