Oesterle signed a two-year, two-way contract with the Bruins on Monday.

Oesterle played in 22 regular-season games for the Flames last year in which he notched two assists, 18 shots and 33 blocked shots while averaging 13:31 of ice time. Considering the Bruins added Nikita Zadarov to an already deep defensive core Monday, the 32-year-old Oesterle figures to spend most of the campaign with AHL Providence.

Gostisbehere signed a three-year, $9.6 million contract with the Hurricanes, Pierre LeBrun of The Athletic reports Monday.

Gostisbehere scored 10 goals and 56 points in 81 contests in 2023-24. He's a great asset on the power play, supplying two goals and 29 points with the man advantage last season. Gostisbehere will probably be limited to a third-pairing role at even strength, but Carolina is expected to take advantage of his abilities on the power play.

Hakanpaa (knee) signed a two-year, $3 million contract with the Maple Leafs on Monday, according to Elliotte Friedman of Sportsnet.

Hakanpaa had two goals, 12 points, 196 hits and 123 blocked shots in 64 regular-season outings with the Stars in 2023-24. He didn't play past March 16 due to his knee injury, which required an arthroscopic procedure. Provided Hakanpaa is healthy, he'll probably serve on Toronto's third pairing.

Davies inked a one-year, two-way contract with Ottawa on Monday.

Davies failed to get into an NHL game last season, spending the entire campaign in the minors with AHL Rochester. For the Americans, the 2016 seventh-round pick generated 12 goals and 23 assists in 66 regular-season contests. While Davies could see more NHL action with Ottawa during the 2024-25 campaign, he is unlikely to be a full-time NHL player.

MacDonald (undisclosed) signed a two-year, $1.55 million contract with Colorado on Monday, according to PuckPedia.

MacDonald provided seven goals, two assists, 49 shots on net and 40 hits in 34 regular-season contests with the Sharks in 2023-24. The 31-year-old has played three of his first five years with the Avalanche, so he should be familiar with the organization. He missed San Jose's final three games because of an injury but should be available for training camp. MacDonald could see playing time in a depth capacity as a forward or a defenseman in 2024-25.

Lundkvist signed a one-year, $1.25 million contract with the Stars on Monday.

Lundkvist had two goals and 19 points in 59 regular-season games in 2023-24. His role with Dallas might be limited following the signings of defensemen Matt Dumba and Ilya Lyubushkin. As a result, it wouldn't be surprising if Lundkvist ends up serving primarily as Dallas' seventh blueliner, which was a common occurrence for him down the stretch and in the playoffs last season.

De Haan signed a one-year, $800,000 contract with the Avalanche on Monday, per Bruce Garrioch of Postmedia.

De Haan had three goals, 10 points, 96 hits and 82 blocked shots in 59 regular-season appearances with the Lightning in 2023-24. The 33-year-old should be in the mix for a third-pairing role, but it wouldn't be surprising if he ends up as Colorado's seventh defenseman on the depth chart.

Mahura is an unrestricted free agent after Florida didn't present him with a qualifying offer ahead of Sunday's deadline, David Dwork of The Hockey News reports.

Mahura contributed nine assists, 25 shots on goal, 27 blocked shots and 40 hits in 30 regular-season appearances with Florida in 2023-24. He could be a solid depth blueliner for teams in free agency.

Lyubushkin signed a three-year, $9.75 million contract with the Stars on Monday.

Lyubushkin had eight points (all assists), 57 PIM, 176 hits and 168 blocked shots in 74 regular-season contests between Anaheim and Toronto in 2023-24. The 30-year-old is likely to serve primarily on the third pairing with the Stars. Between Lyubushkin and Matt Dumba, who also signed a two-year deal with the Stars, Dallas is adding a lot of grit to its defense.

Smith signed a one-year, $1 million contract with Dallas on Monday.

Smith accumulated five goals, 15 points, 60 shots on net, 61 PIM, 101 blocked shots and 117 hits across 63 regular-season games with New Jersey in 2023-24. He will serve as a depth defender for the Stars.