01:54 PM EDT, 09/30/2024 (MT Newswires) -- Health care stocks were mixed Monday afternoon, with the NYSE Health Care Index shedding 0.2% and the Health Care Select Sector SPDR Fund (XLV) up 0.1%.

The iShares Biotechnology ETF (IBB) was fractionally lower.

In corporate news, CVS Health ( CVS ) leadership is facing a challenge by shareholder Glenview Capital in what could be the start of a push to oust management, news outlets reported. CVS shares popped 2.7%.

Pfizer ( PFE ) plans to sell about 540 million shares in Haleon, Bloomberg reported. Pfizer ( PFE ) shares were shedding 0.8%.

Prothena ( PRTA ) shares plunged past 15% after the company said Chief Medical Officer Hideki Garren is leaving "to pursue an opportunity at a large pharmaceutical company."