Labcorp outlays up to $872m to acquire BioReference’s laboratory assets
Labcorp is acquiring laboratory assets from BioReference Health, an OPKO Health subsidiary, for up to $872m. The deal includes BioReference's clinical and women's health testing services, urology, corrections, and the 4Kscore prostate cancer test. Labcorp will pay $722m upfront, with up to $150m in potential earnouts. The transaction aims to expand Labcorp's diagnostic services and streamline OPKO's operations.
How this was made

The 30-second read
Why it matters
The acquisition expands Labcorp's test portfolio and patient service centers, while Opko redirects focus to its biopharma pipeline.
Market read
A $872M M&A deal in the diagnostics sector, likely to move both LH and OPK stocks on the day of announcement.
What to watch
Integration risk of BioReference's operations and potential regulatory scrutiny of the 4Kscore test.
Background
Labcorp (LH) is a leading U.S. clinical laboratory services provider; Opko Health (OPK) operates BioReference Health, a diagnostics subsidiary.
Ticker impact
Labcorp announced a cash deal up to $872M to acquire BioReference assets, a primary M&A disclosure.
likely modest downside as investors price the $722M cash payment, with potential upside over the longer term.
Deal size is material and newly disclosed; market will assess integration benefits versus cash usage.
Opko Health disclosed the sale of BioReference assets to Labcorp for up to $872M, a primary corporate event.
likely upward pressure as the market values the cash proceeds and focus on its biopharma business.
Cash receipt of $722M plus earnouts is material and newly reported, supporting Opko's valuation.
Market effects
Strengthens Labcorp's position in the diagnostics sector, potentially prompting consolidation activity.
U.S. healthcare services market sees a notable transaction, but limited broader regional effect.
Adds to global trend of large diagnostics firms expanding service offerings.
Counterpoint
The cash outlay could strain Labcorp's balance sheet, leading to short‑term share weakness.
Key entities
- CompanyLabcorp
U.S. clinical laboratory services provider acquiring BioReference assets.
- CompanyOpko Health
Parent of BioReference Health, selling diagnostics assets to Labcorp.



