Barberio signed a two-year contract extension with the Avalanche on Tuesday. According to Mike Chambers of The Denver Post, the deal is worth $1.45 million annually.
Alt agreed to terms on a two-year deal with Colorado on Thursday.
MacKinnon was named as a finalist for the Hart Memorial Trophy on Friday, Mark Stepneski of the Stars' official site reports.
Yakupov watched all six games of the Avs' first-round series against the Predators.
Nemeth had his best season as a pro in 2017-18, setting career highs in goals (3), assists (12) and shots on goal (73) while posting an impressive plus-27 rating in 68 contests.
Lindholm compiled four points, 99 hits and a plus-4 rating through 44 games in 2017-18.
Siemens recorded two points, 23 PIM and 22 hits while logging 12:19 TOI through 16 games in 2017-18.
Alt suited up for 15 games between the Flyers (eight) and Avalanche (seven) in 2017-18.
Hammond will be the home starter for Game 6 against the Predators on Sunday, NHL.com reports.
Compher was the primary assist man on Sven Andrighetto's game-winning goal against the Predators in Game 5 on Friday night.
Landeskog helped save his team's season with the game-tying goal just 4:11 away from defeat, helping snag a 2-1 win over Nashville in Game 5 on Friday.
Andrighetto knocked home the winning goal in Game 5, keeping his team's season alive with a 2-1 win at Nashville on Friday.
Barrie had the secondary assist on Sven Andrighetto's goal, which proved the winning goal in a 2-1 victory over Nashville in Game 5 on Friday.
Girard (upper body) will play Game 5 against the Predators on Friday
Girard (upper body) will be a game-time decision for Game 5 against the Predators on Friday.
Bernier (lower body) will not be available for Friday's Game 5 against the Predators, Marc Moser of Altitude Sports 950 reports.
Hammond will guard the goal when the Avalanche visit the Predators for Game 5 on Friday.
Kerfoot notched his second career playoff goal Wednesday, but his comeback bid fell short as the Avalanche lost to the Predators 3-2 in Game 4.
Hammond entered in the third period following Jonathan Bernier's (lower body) exit because of injury, making eight saves on eight shots in a 3-2 loss to Nashville in Game 4 of the Western Conference quarterfinals on Wednesday.
Bernier stopped 23 of 26 shots before exiting with a lower body injury, failing to return in a 3-2 loss to Nashville in Game 4 on Wednesday, a result that left his team down 3-1 in the series.
Girard (upper body) won't be fit to play in Game 4 against the Predators on Wednesday, Adam Vingan of The Tennessean reports.
Girard (upper body) practiced without contact Tuesday and could play Game 4 against the Predators.
MacKinnon scored back-to-back goals spanning the first and second period and knocked Pekka Rinne out of what ultimately finished as a 5-3 win over the Predators in Game 3 on Monday.
Rantanen provided helpers on a pair of his team's five goals, helping his squad earn a 5-3 win over Nashville on Monday in Game 3.
Landeskog scored a goal and added two assists Monday, helping his side earn a 5-3 win over Nashville.