09:22 AM EST, 03/05/2026 (MT Newswires) -- Health care stocks were falling premarket Thursday, with the State Street Health Care Select Sector SPDR ETF ( XLV ) 0.7% lower and the iShares Biotechnology ETF (IBB) down 0.4%.

Kura Oncology ( KURA ) stock was down more than 4% after the company reported a wider Q4 net loss as revenue declined during the period.

Tango Therapeutics ( TNGX ) shares were down more than 5% even after the company posted a narrower Q4 net loss.

Immatics ( IMTX ) stock was down more than 1% after the company reported that it swung to a fiscal 2025 loss as revenue fell during the period.