The 28-year-old has signed until at least the end of the 2021 season, and told the club’s website he was thrilled to lock in his playing future.
“It’s been a crazy few weeks but it’s good to lock it all away. I can’t wait to get over here and to rip in. It’s really exciting,” Johnson told sharks.com.au.
“I want to add value where I can. The Sharks are a tough side, they know how to win and that’s what I’m excited to be a part of.”
Sharks coach Shane Flanagan also spoke about Johnson’s signing, and said it was a “massive boost” to what the club are building towards.
“To recruit a current Test half at this time of year is a massive boost to our club, the playing group our members and fans,” Flanagan said.
“Shaun’s football talent is going to be a huge plus for our team and his experience will undoubtedly help with the development of our younger players.
“Players like Jayden (Brailey), Kyle (Flanagan) and Blayke (Brailey) are some who can only benefit from having Shaun in our team.
“And added to all of that, he has outstanding character, has done some great work in the community in New Zealand and he will also be an asset to the club off the field as well.”