Myriad Genetics (MYGN) Stock Trades Up, Here Is Why
Myriad Genetics (MYGN) shares rose 22.2% premarket after agreeing to sell its Prenatal Health business to Labcorp for $210M in cash plus inventory. The deal, expected to close by early 2027, includes a $10.5M reverse termination fee. The prenatal division had seen a 16% YoY revenue decline in Q2. CEO Sam Raha stated the divestiture will improve overall revenue growth and profitability.
How this was made

The 30-second read
Why it matters
The cash proceeds and removal of a loss‑making segment improve balance sheet and earnings outlook.
Market read
The transaction unlocks value for Myriad, driving a sharp pre‑market rally and may influence peer valuations.
What to watch
Potential integration risks for Labcorp and possible regulatory scrutiny of the transaction.
Background
Myriad Genetics has struggled with a declining prenatal division, which weighed on recent guidance.
Ticker impact
Shares jumped 22.2% pre‑market after Myriad Genetics agreed to sell its Prenatal Health testing business to Labcorp for $210 million cash.
potential further upside as market prices in the accretive deal
Deal size ($210 M) equals ~52% of market cap and triggered a 22% pre‑market rally; investors view the sale as value‑unlocking.
Market effects
May prompt other genetic‑testing firms to consider asset sales to improve margins.
Limited to US biotech/healthcare sector; no broad regional effect.
Highlights consolidation trend in prenatal diagnostics globally.
Counterpoint
The sale could signal underlying weakness in Myriad's core business, suggesting caution.
Key entities
- companyMyriad Genetics
US‑listed genetic‑testing firm (ticker MYGN).
- companyLabcorp
US clinical‑laboratory services provider acquiring Myriad's prenatal assets.


