03:24 PM EDT, 08/25/2025 (MT Newswires) -- Health care stocks declined late Monday afternoon, with the NYSE Health Care Index falling 1.3% and the Health Care Select Sector SPDR Fund (XLV) declining 1.4%.

The iShares Biotechnology ETF (IBB) dropped 1.7%.

In corporate news, OraSure Technologies ( OSUR ) was warned by health care investor Ron Zwanziger that he might pursue a more "adversarial path" after the medical devices company rejected his all-cash acquisition offer, Reuters reported. OraSure ( OSUR ) shares rose 5.3%.