Healthcare stocks were flat to higher pre-bell Wednesday, with the iShares Biotechnology ETF (IBB) inactive and the State Street Health Care Select Sector SPDR ETF (XLV) up 0.4%.

Danaher (DHR) stock was up more than 1% after the company said it plans to launch an AI-backed autonomous lab to help researchers develop custom antibodies and other molecular tools faster and more efficiently.

Neogen (NEOG) shares were up more than 14% after the company posted higher fiscal Q1 adjusted earnings and revenue, and raised its fiscal 2027 revenue outlook.

Arrowhead Pharmaceuticals (ARWR) has been granted entry by the US Food and Drug Administration into the Split Real Time Application Review pilot program for the company's planned supplemental new drug application, or sNDA, for plozasiran for severe hypertriglyceridemia, the company said. Shares of Arrowhead were up 1.7% premarket.