Andrighetto agreed to terms on a two-year deal worth $2.8 million with Colorado on Wednesday, Mike Chambers of The Denver Post reports.
Grigorenko wasn't extended a qualifying offer by the Avalanche and thus is set to become an unrestricted free agent Saturday, The Denver Post reports.
Andrighetto was protected by the Avalanche with the expansion draft looming, The Denver Post reports.
Soderberg was not protected by the Avalanche in advance of the Vegas expansion draft on June 21, theScore reports.
Grigorenko is a pending unrestricted free agent, which makes him available to the Golden Knights in the expansion draft on June 21, theScore reports.
Barrie, who has withdrawn from the IIHF Championship, sustained a laceration to his leg as a result of wrestling a teammate off the ice, The Denver Post reports.
Barrie injured his lower body at the IIHF World Championship and will miss the remainder of the tournament.
Zadorov (ankle) is no longer listed on injured reserve, per the NHL's official media site.
Soderberg will take part in the 2017 IIHF World Championship.
MacKinnon picked up an assist with a plus-2 rating in Sunday's 3-2 loss against the Blues.
Beauchemin scored his fifth goal of the season in Sunday's 3-2 loss against the Blues.
Rantanen scored a goal with an assist and plus-2 rating in Sunday's 3-2 loss against the Blues.
Pickard allowed three goals on 27 shots in Sunday's 3-2 loss against the Blues.
Grimaldi was sent down to AHL San Antonio on Sunday.
Siemens was sent down to AHL San Antonio on Sunday.
Lindholm was sent down to AHL San Antonio on Sunday.
Barrie collected two assists in 25:58 of ice time in Saturday's shootout loss to the Stars.
Smith stopped 42 of 45 shots in Saturday's shootout loss to the Stars.
Rantanen (lower-body) did not participate in Colorado's morning skate, but he is expected to be back in the lineup Saturday against the Stars, Terry Frei of the Denver Post reports.
Pickard will finish off the season Sunday in St. Louis, Rick Sadowski of NHL.com reports.
Smith will be in goal Saturday in Dallas, Rick Sadowski of NHL.com reports.
Butcher had been named the winner of the 2016-17 Hobey Baker Award, which is presented to the nation's top collegiate player.
Compher fashioned a secondary assist in Thursday's 4-3 loss to the Wild.
Pickard was handed a 4-3 home loss to the Wild on Thursday, stopping 24 shots in the process.
Jost buried his first career goal Thursday in a 4-3 loss to the Wild.