May 31, 2017

• The Tampa Bay Lightning acquired a 2018 conditional seventh-round draft pick from Los Angeles for the rights to F Bokondji Imama.

May 30, 2017

• The Boston Bruins signed F Anders Bjork to a three-year, entry-level contract.
• The Los Angeles Kings named Dave Lowry assistant coach.
• The Minnesota Wild announced the resignation of assistant coach Scott Stevens.

May 27, 2017

• The Chicago Blackhawks agreed to terms with D Michal Kempny on a one-year contract extension.

May 25, 2017

• The Buffalo Sabres signed D Victor Antipin to a one-year, entry-level contract.
• The St. Louis Blues named Steve Ott assistant coach.

May 24, 2017

• The Arizona Coyotes named Craig Cunningham pro scout and signed him to a two-year contract.
• The Detroit Red Wings signed D Libor Sulak to a two-year, entry-level contract.
• The St. Louis Blues named Darryl Sydor coach and signed him to a three-year contract.

May 18, 2017

• The Arizona Coyotes named Steve Sullivan assistant general manager and signed him to a multi-year contract.
• The Chicago Blackhawks named Jeremy Colliton coach of Rockford (AHL).
• The New York Islanders named Luke Richardson assistant coach.

May 17, 2017

• The Anaheim Ducks signed D Josh Mahura to a three-year contract.
• The Nashville Predators signed D Andrew O'Brien to a one-year, two-way contract.

May 16, 2017

• The Arizona Coyotes signed F Mario Kempe to a one-year, two-way contract.
• The New York Rangers fired Hartford (AHL) coach Ken Gernander. Named Chris Drury general manager of Hartford.
• The St. Louis Blues fired assistant coaches Ray Bennett, Steve Thomas, Rick Wilson and Ty Conklin.

May 15, 2017

• The Tampa Bay Lightning signed F Taylor Raddysh to a three-year, entry-level contract.

May 12, 2017

• The Dallas Stars signed G Ben Bishop to a six-year contract extension.
• The New Jersey Devils signed F Jesper Bratt to a three-year, entry-level contract.
• The San Jose Sharks signed Fs Melker Karlsson and Joonas Donskoi.

May 11, 2017

• The Buffalo Sabres named Jason Botterill general manager.
• The Chicago Blackhawks agreed to terms with F Richard Panik on a two-year contract extension.

May 9, 2017

• The Dallas Stars acquired the rights to G Ben Bishop from Los Angeles for a 2017 fourth-round draft pick.
• The Los Angeles Kings agreed to terms with F Tanner Pearson on a four-year contract.
• The New Jersey Devils signed D Viktor Loov to a one-year contract.

May 8, 2017

• The Dallas Stars signed F Justin Dowling to a two-year, two-way contract extension.
• The Nashville Predators signed F Emil Pettersson to a two-year, entry-level contract.

May 5, 2017

• The Carolina Hurricanes agreed to terms with G Scott Darling on a four-year contract.

May 4, 2017

• The Dallas Stars signed F Roope Hintz to a three-year entry level contract.

May 2, 2017

• The Chicago Blackhawks agreed to terms with F David Kampf on a two-year contract through the 2018-19 season.
• The Detroit Red Wings agreed to terms with G Matej Machovsky on a one-year contract.
• The Toronto Maple Leafs signed D Nikita Zaitsev to a seven-year contract extension through the 2023-24 season and F Ben Smith to a one-year contract.

May 1, 2017

• The Arizona Coyotes signed D Cam Dineen to an entry-level contract.
• The Calgary Flames signed general manager Brad Treliving to a multiyear contract extension.