(Reuters) -Activist investors have targeted major healthcare companies over the past year to push them to improve their performance, with some campaigns only coming to light after announcements of board changes.

Below are some notable healthcare companies that came under activist pressure in the last 12 months.

MEDTRONIC

In August 2025, the medical device maker appointed two new independent directors to its board and created independent committees focused on improving its performance, after Elliott Investment Management took a large stake, making it one of the company’s biggest shareholders.

AVANTOR

Engine Capital targeted the life sciences firm in August 2025, urging it to bring in new board directors, cut costs and even consider a sale.

CHARLES RIVER LABORATORIES

The contract rese

See Full Page