Transactions
| Date | Player | Pos | Transactions |
| 1/15 | Jack Studnicka | C | Designated for assignment Taxi squad |
| 1/15 | Trent Frederic | C | Designated for assignment Taxi squad |
| 1/15 | Karson Kuhlman | RW | Sent to minors Providence-AHL |
| 1/14 | Jack Studnicka | C | Called up from minors from taxi squad |
| 1/14 | Trent Frederic | C | Called up from minors from taxi squad |
| 1/14 | Par Lindholm | C | Designated for assignment Taxi squad |
| 1/13 | Jack Studnicka | C | Designated for assignment Taxi squad |
| 1/13 | Greg McKegg | C | Designated for assignment Taxi squad |
| 1/13 | Trent Frederic | C | Designated for assignment Taxi squad |
| 1/13 | Urho Vaakanainen | D | Designated for assignment Taxi squad |
| 1/13 | Dan Vladar | G | Designated for assignment Taxi squad |
| 1/13 | Steven Kampfer | D | Sent to minors Providence-AHL |
| 1/13 | Robert Lantosi | RW | Sent to minors Providence-AHL |
| 1/13 | Zach Senyshyn | RW | Sent to minors Providence-AHL |
| 1/13 | Oskar Steen | C | Sent to minors Providence-AHL |
| 1/13 | Jeremy Swayman | G | Sent to minors Providence-AHL |
| 1/13 | Nick Wolff | D | Sent to minors Providence-AHL |
| 1/13 | Cameron Hughes | C | Sent to minors Providence-AHL |
| 1/13 | Matt Filipe | LW | Sent to minors Providence-AHL |
| 1/13 | Paul Carey | RW | Sent to minors Providence-AHL |
| 1/13 | Callum Booth | G | Sent to minors Providence-AHL |
| 1/13 | Anton Blidh | LW | Sent to minors Providence-AHL |
| 1/13 | Jack Ahcan | D | Sent to minors Providence-AHL |
| 1/13 | Par Lindholm | C | Waived |
| 1/13 | Karson Kuhlman | RW | Placed on IR COVID-19 protocol |
| 1/11 | Greg McKegg | C | Waived |
| 1/11 | Paul Carey | RW | Waived |
| 1/11 | Zach Senyshyn | RW | Waived |
| 1/11 | Steven Kampfer | D | Waived |
| 1/11 | Anton Blidh | LW | Waived |
| 1/3 | David Pastrnak | RW | Placed on IR Hip |
| 12/31 | Jack Ahcan | D | Called up from minors from Jacksonville-ECHL |
| 12/31 | Matt Filipe | LW | Called up from minors from Jacksonville-ECHL |
| 12/6 | Kyle Keyser | G | Sent to minors Jacksonville-ECHL |
| 12/6 | Matt Filipe | LW | Sent to minors Jacksonville-ECHL |
| 11/24 | Dan Vladar | G | Assigned to European Team HC Dynamo Pardubice-Czech Rep. |
| 11/24 | Jake DeBrusk | LW | Re-Signed Two-year contract |
| 11/23 | Urho Vaakanainen | D | Assigned to European Team SaiPa-Finland |
| 10/21 | Zach Senyshyn | RW | Re-Signed One-year, two-way contract |
| 10/20 | Karson Kuhlman | RW | Re-Signed Two-year contract |
| 10/17 | Matt Grzelcyk | D | Re-Signed Four-year contract |
| 10/14 | Jakub Zboril | D | Re-Signed Two-year contract |
| 10/14 | Callum Booth | G | Signed as Free Agent One-year, two-way contract |
| 10/14 | Greg McKegg | C | Signed as Free Agent One-year, two-way contract |
| 10/10 | Craig Smith | RW | Signed as Free Agent Three-year contract |
| 10/9 | Zdeno Chara | D | Became Unrestricted Free Agent |
| 10/9 | Torey Krug | D | Became Unrestricted Free Agent |
| 10/9 | Maxime Lagace | G | Became Unrestricted Free Agent |
| 10/9 | Kevan Miller | D | Became Unrestricted Free Agent |
| 10/9 | Joakim Nordstrom | LW | Became Unrestricted Free Agent |
| 10/9 | Alexander Petrovic | D | Became Unrestricted Free Agent |
| 10/9 | Ryan Fitzgerald | C | Became Unrestricted Free Agent |
| 10/9 | Brendan Gaunce | LW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Brett Ritchie | RW | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Wiley Sherman | D | Became Unrestricted Free Agent Not tendered a qualifying offer |
| 10/9 | Kevan Miller | D | Signed as Free Agent One-year contract |
| 9/22 | Joona Koppanen | LW | Assigned to European Team KOOVEE-Finland |
| 9/10 | Oskar Steen | C | Assigned to European Team IF Bjorkleven-Sweden |
| 9/8 | Jakub Zboril | D | Assigned to European Team HC Kometa Brno-Czech Rep. |
| 9/1 | Tuukka Rask | G | Returned from Leave of Absence |
| 9/1 | Steven Kampfer | D | Returned from Leave of Absence |
| 8/23 | Dan Vladar | G | Contract extended Three-year contract extension |
| 8/17 | Jakub Lauko | C | Assigned to European Team HC Energie Karlovy Vary-Czech Rep |
| 8/17 | Matt Filipe | LW | Signed as Free Agent Two-year, entry-level contract |
| 8/15 | Tuukka Rask | G | Granted Leave of Absence Opted out of remaining 2020 playoffs |
| 8/6 | Robert Lantosi | RW | Signed Three-year, entry-level contract |
| 7/29 | Anders Bjork | RW | Contract extended Three-year contract extension |
| 7/26 | Anton Blidh | LW | Sent to minors Providence-AHL |
| 7/26 | Paul Carey | RW | Sent to minors Providence-AHL |
| 7/11 | Jack Studnicka | C | Called up from minors from Providence-AHL |
| 7/11 | Paul Carey | RW | Called up from minors from Providence-AHL |
| 7/11 | Dan Vladar | G | Called up from minors from Providence-AHL |
| 7/11 | Maxime Lagace | G | Called up from minors from Providence-AHL |
| 7/11 | Jakub Zboril | D | Called up from minors from Providence-AHL |
| 7/11 | Urho Vaakanainen | D | Called up from minors from Providence-AHL |
| 7/11 | Zach Senyshyn | RW | Called up from minors from Providence-AHL |
| 7/11 | Karson Kuhlman | RW | Called up from minors from Providence-AHL |
| 7/11 | Trent Frederic | C | Called up from minors from Providence-AHL |
| 7/11 | Steven Kampfer | D | Granted Leave of Absence Opted out of 2020 playoffs |
| 7/1 | Victor Berglund | D | Signed Three-year, entry-level contract |
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