Transactions
| Date | Player | Pos | Transactions |
| 1/24 | Andrew Hammond | G | Called up from minors from taxi squad |
| 1/24 | Hunter Jones | G | Designated for assignment Taxi squad |
| 1/19 | Ian Cole | D | Traded for Greg Pateryn |
| 1/13 | Matt Bartkowski | D | Designated for assignment Taxi squad |
| 1/13 | Louie Belpedio | D | Designated for assignment Taxi squad |
| 1/13 | Kyle Rau | C | Designated for assignment Taxi squad |
| 1/13 | Luke Johnson | C | Designated for assignment Taxi squad |
| 1/13 | Dakota Mermis | D | Designated for assignment Taxi squad |
| 1/13 | Andrew Hammond | G | Designated for assignment Taxi squad |
| 1/12 | Marcus Foligno | LW | Contract extended Three-year contract extension |
| 1/11 | Mitchell Chaffee | RW | Sent to minors Iowa-AHL |
| 1/11 | Joseph Cramarossa | C | Sent to minors Iowa-AHL |
| 1/11 | Connor Dewar | C | Sent to minors Iowa-AHL |
| 1/11 | Brandon Duhaime | RW | Sent to minors Iowa-AHL |
| 1/11 | Hunter Jones | G | Sent to minors Iowa-AHL |
| 1/11 | Mason Shaw | C | Sent to minors Iowa-AHL |
| 1/11 | Calen Addison | D | Sent to minors Iowa-AHL |
| 1/11 | Ian McCoshen | D | Sent to minors Iowa-AHL |
| 1/11 | Dereck Baribeau | G | Sent to minors Iowa-AHL |
| 1/11 | Gabriel Dumont | C | Sent to minors Iowa-AHL |
| 1/10 | Kyle Rau | C | Waived |
| 1/10 | Dakota Mermis | D | Waived |
| 1/10 | Ian McCoshen | D | Waived |
| 1/10 | Gerald Mayhew | RW | Waived |
| 1/10 | Matt Bartkowski | D | Waived |
| 1/10 | Andrew Hammond | G | Waived |
| 1/10 | Gabriel Dumont | C | Waived |
| 1/10 | Joseph Cramarossa | C | Waived |
| 1/10 | Louie Belpedio | D | Waived |
| 1/10 | Luke Johnson | C | Waived |
| 1/10 | Marco Rossi | C | Placed on IR Upper-body injury |
| 1/3 | Mats Zuccarello | RW | Placed on IR Arm |
| 1/3 | Alex Stalock | G | Placed on IR Upper-body injury |
| 12/16 | Andrew Hammond | G | Signed as Free Agent One-year, two-way contract |
| 10/28 | Marco Rossi | C | Assigned to European Team ZSC Lions-Switzerland |
| 10/23 | Marco Rossi | C | Signed Three-year, entry-level contract |
| 10/22 | Louie Belpedio | D | Re-Signed One-year, two-way contract |
| 10/19 | Ian McCoshen | D | Signed as Free Agent One-year, two-way contract |
| 10/12 | Kaapo Kahkonen | G | Re-Signed Two-year contract |
| 10/10 | Jordan Greenway | RW | Re-Signed Two-year contract |
| 10/9 | Sam Anas | C | Became Unrestricted Free Agent |
| 10/9 | Colton Beck | LW | Became Unrestricted Free Agent |
| 10/9 | J.T. Brown | RW | Became Unrestricted Free Agent |
| 10/9 | Alex Galchenyuk | C | Became Unrestricted Free Agent |
| 10/9 | Mikko Koivu | C | Became Unrestricted Free Agent |
| 10/9 | Mike Liambas | LW | Became Unrestricted Free Agent |
| 10/9 | Hunter Warner | D | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Mat Robson | G | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Stepan Falkovsky | D | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Cam Talbot | G | Signed as Free Agent Three-year contract |
| 10/9 | Joseph Cramarossa | C | Signed as Free Agent One-year, two-way contract |
| 10/9 | Dakota Mermis | D | Signed as Free Agent One-year, two-way contract |
| 10/8 | Matt Bartkowski | D | Contract extended One-year, two-way contract extension |
| 10/8 | Kyle Rau | C | Contract extended One-year, two-way contract extension |
| 10/7 | Nick Bonino | C | Traded w/ two '20 picks for Kunin, '20 pick |
| 10/5 | Nico Sturm | C | Contract extended Two-year contract extension |
| 10/5 | Carson Soucy | D | Contract extended Three-year contract extension |
| 9/16 | Marcus Johansson | C | Traded for Eric Staal |
| 9/15 | Jonas Brodin | D | Contract extended Seven-year contract extension |
| 9/11 | Nick Bjugstad | C | Traded for 2021 pick |
| 8/29 | Brennan Menell | D | Assigned to European Team Dinamo Minsk-KHL |
| 7/24 | Sam Anas | C | Sent to minors Iowa-AHL |
| 7/24 | Calen Addison | D | Sent to minors Lethbridge-WHL |
| 7/24 | J.T. Brown | RW | Sent to minors Iowa-AHL |
| 7/14 | Cody McLeod | LW | Signed as Free Agent Minors contract - Iowa-AHL |
| 7/13 | Kirill Kaprizov | LW | Signed Two-year, entry-level contract |
| 7/11 | Sam Anas | C | Called up from minors from Iowa-AHL |
| 7/11 | Matt Bartkowski | D | Called up from minors from Iowa-AHL |
| 7/11 | Louie Belpedio | D | Called up from minors from Iowa-AHL |
| 7/11 | Calen Addison | D | Called up from minors from Lethbridge-WHL |
| 7/11 | Kaapo Kahkonen | G | Called up from minors from Iowa-AHL |
| 7/11 | Mat Robson | G | Called up from minors from Iowa-AHL |
| 7/11 | Brennan Menell | D | Called up from minors from Iowa-AHL |
| 7/11 | Nico Sturm | C | Called up from minors from Iowa-AHL |
| 7/11 | J.T. Brown | RW | Called up from minors from Iowa-AHL |
| 7/11 | Gerald Mayhew | RW | Called up from minors from Iowa-AHL |
| 7/11 | Kyle Rau | C | Called up from minors from Iowa-AHL |
| 7/11 | Luke Johnson | C | Called up from minors from Iowa-AHL |
| 7/11 | Greg Pateryn | D | Placed on IR Upper-body injury |
| 7/8 | Keaton Thompson | D | Signed as Free Agent Minors contract - Iowa-AHL |
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