The Sharks announced the move Tuesday, the deadline for teams to make qualifying offers to restricted free agents such as Galiardi. He spent the last two seasons with the Sharks, scoring six goals to go with nine assists in 50 regular-season games.
Galiardi became expendable after the Sharks acquired Tyler Kennedy from Pittsburgh on Sunday and the arrival of last year's first-round pick Tomas Hertl. Galiardi was acquired from Colorado in a six-player trade in February 2012 and played on San Jose's top line with Brent Burns and Joe Thornton last season.
In other moves, the Sharks extended qualifying offers to defenseman Nick Petrecki and forward Marek Viedensky. Forward Tommy Grant and goalie Thomas Heemskerk were not issued qualifying offers, making both unrestricted free agents.
The team also announced that defenseman Justin Sefton was not extended an offer by the June 1 deadline, allowing him to re-enter the NHL draft.