Transactions
| Date | Player | Pos | Transactions |
| 1/13 | Stefan Matteau | LW | Designated for assignment Taxi squad |
| 1/13 | Ryan MacInnis | RW | Designated for assignment Taxi squad |
| 1/13 | Matiss Kivlenieks | G | Designated for assignment Taxi squad |
| 1/13 | Nathan Gerbe | LW | Designated for assignment Taxi squad |
| 1/13 | Adam Clendening | D | Designated for assignment Taxi squad |
| 1/13 | Andrew Peeke | D | Designated for assignment Taxi squad |
| 1/13 | Cliff Pu | RW | Sent to minors Cleveland-AHL |
| 1/13 | Cam Johnson | G | Sent to minors Cleveland-AHL |
| 1/13 | Trey Fix-Wolansky | RW | Sent to minors Cleveland-AHL |
| 1/13 | Zac Dalpe | C | Sent to minors Cleveland-AHL |
| 1/13 | Jake Christiansen | D | Sent to minors Cleveland-AHL |
| 1/13 | Gavin Bayreuther | D | Sent to minors Cleveland-AHL |
| 1/13 | Kole Sherwood | RW | Sent to minors Cleveland-AHL |
| 1/11 | Thomas Schemitsch | D | Released |
| 1/11 | Justin Scott | C | Released |
| 1/11 | Tyler Angle | C | Released |
| 1/11 | Veini Vehvilainen | G | Sent to minors Cleveland-AHL |
| 1/11 | Brad Thiessen | G | Waived |
| 1/11 | Zac Dalpe | C | Waived |
| 1/11 | Ryan MacInnis | RW | Waived |
| 1/11 | Cam Johnson | G | Waived |
| 1/11 | Nathan Gerbe | LW | Waived |
| 1/11 | Adam Clendening | D | Waived |
| 1/11 | Gavin Bayreuther | D | Waived |
| 1/11 | Stefan Matteau | LW | Waived |
| 1/10 | Michael Del Zotto | D | Signed as Free Agent One-year, two-way contract |
| 1/9 | Cam Johnson | G | Signed as Free Agent One-year, two-way contract |
| 1/8 | Mikko Koivu | C | Placed on IR COVID-19 protocol |
| 1/6 | Oliver Bjorkstrand | RW | Contract extended Five-year contract extension |
| 1/3 | Brandon Dubinsky | C | Placed on IR Wrist |
| 1/3 | Gustav Nyquist | LW | Placed on IR Shoulder |
| 12/31 | Tyler Angle | C | Invited to Training Camp |
| 12/31 | Thomas Schemitsch | D | Invited to Training Camp |
| 12/31 | Brad Thiessen | G | Invited to Training Camp |
| 12/31 | Justin Scott | C | Invited to Training Camp |
| 12/31 | Pierre-Luc Dubois | C | Re-Signed Two-year contract |
| 12/29 | Calvin Thurkauf | C | Waived For purpose of loan |
| 12/26 | Michael Del Zotto | D | Invited to Training Camp |
| 11/5 | Vladislav Gavrikov | D | Re-Signed Three-year contract |
| 10/29 | Ryan MacInnis | RW | Re-Signed One-year, two-way contract |
| 10/28 | Jake Christiansen | D | Assigned to European Team Bratislava Capitals-Slovakia |
| 10/28 | Kevin Stenlund | C | Re-Signed One-year contract |
| 10/27 | Calvin Thurkauf | C | Re-Signed One-year, two-way contract |
| 10/22 | Carson Meyer | RW | Signed as Free Agent Minors contract - Cleveland-AHL |
| 10/21 | Thomas Schemitsch | D | Signed as Free Agent Minors contract - Cleveland-AHL |
| 10/16 | Gabriel Carlsson | D | Re-Signed Two-year, two-way contract |
| 10/14 | Tyler Sikura | C | Signed as Free Agent Minors contract - Cleveland-AHL |
| 10/13 | Justin Scott | C | Signed as Free Agent Minors contract - Cleveland-AHL |
| 10/13 | Brad Thiessen | G | Signed as Free Agent Minors contract - Cleveland-AHL |
| 10/13 | Dillon Simpson | D | Signed as Free Agent Minors contract - Cleveland-AHL |
| 10/10 | Mikko Koivu | C | Signed as Free Agent One-year contract |
| 10/9 | Lukas Sedlak | RW | Became Unrestricted Free Agent |
| 10/9 | Dillon Simpson | D | Became Unrestricted Free Agent |
| 10/9 | Paul Bittner | LW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Ryan Collins | D | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Marko Dano | LW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Doyle Somerby | D | Became Unrestricted Free Agent |
| 10/9 | Jakob Lilja | RW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Michael Prapavessis | D | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Justin Scott | C | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Devin Shore | C | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Maxime Fortier | RW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Gavin Bayreuther | D | Signed as Free Agent One-year, two-way contract |
| 10/8 | Matiss Kivlenieks | G | Contract extended Two-year, two-way contract extension |
| 10/8 | Cliff Pu | RW | Traded for Markus Nutivaara |
| 10/8 | Alex Wennberg | C | Waived For purpose of contract buyout |
| 10/7 | Max Domi | C | Contract extended Two-year contract extension |
| 10/6 | Max Domi | C | Traded w/ '20 3rd-rd pick for Josh Anderson |
| 10/5 | Alexandre Texier | LW | Assigned to European Team Grenoble-France |
| 10/4 | Kole Sherwood | RW | Assigned to European Team Kunlun Red Star-KHL |
| 10/4 | Kole Sherwood | RW | Contract extended One-year, two-way contract extension |
| 9/16 | Daniil Tarasov | G | Assigned to European Team Salavat Yulaev Ufa-KHL |
| 9/8 | Emil Bemstrom | RW | Assigned to European Team HIFK Helsinki-Finland |
| 9/8 | Alexandre Texier | LW | Assigned to European Team KalPa-Finland |
| 9/8 | Veini Vehvilainen | G | Assigned to European Team JYP Jyvaskyla-Finland |
| 7/26 | Ryan MacInnis | RW | Sent to minors Cleveland-AHL |
| 7/26 | Kole Sherwood | RW | Sent to minors Cleveland-AHL |
| 7/26 | Veini Vehvilainen | G | Sent to minors Cleveland-AHL |
| 7/13 | Mikhail Grigorenko | C | Signed as Free Agent One-year contract |
| 7/11 | Matiss Kivlenieks | G | Called up from minors from Cleveland-AHL |
| 7/11 | Liam Foudy | C | Called up from minors from London-OHL |
| 7/11 | Kole Sherwood | RW | Called up from minors from Cleveland-AHL |
| 7/11 | Adam Clendening | D | Called up from minors from Cleveland-AHL |
| 7/11 | Veini Vehvilainen | G | Called up from minors from Cleveland-AHL |
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