Check out the companies making headlines after the bell Wednesday.
GoPro plunged as much as 28 percent in after-hours trading following a halt.The struggling wearable-camera maker trimmed its guidance and announced it would cut its workforce by about 7 percent. GoPro sees fourth-quarter and full-year 2015 sales of $435 million and $1.6 billion, respectively. Analysts had expected fourth-quarter revenue of $512 million, according to a consensus estimate from Thomson Reuters.
Shares of Medtronic ticked up in after-hours trading. The medical device maker recently said it planned to buy back shares worth up to $5 billion over the next couple of years. Medtronic also raised the lower end of its full-year adjusted earnings forecast range to $4.36 per share from $4.33, keeping the higher end unchanged at $4.40.