Harkins failed to score a goal in 45 games with the Penguins in 2023-24, registering just four helpers over that span.
Harkins -- who was claimed off waivers by the Pens before the start of the season -- struggled with injuries throughout the 2023-24 campaign. The 26-year-old Cleveland native will head to free agency this offseason, and he may not have shown the team enough to earn a new deal.