| | C | Suspended (Two games by NHL for interference) |
| | RW | Waived (Signed) |
| | C | Assigned to Junior Club (Kitchener-OHL) |
| | D | Assigned to Junior Club (Shawinigan-QMJHL) |
| | RW | Released (Signed) |
| | D | Released (Signed) |
| | D | Released (Signed) |
| | C | Released (Signed) |
| | LW | Released (Signed) |
| | RW | Released (Signed) |
| | D | Invited to Training Camp (Signed) |
| | RW | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | LW | Invited to Training Camp (Signed) |
| | LW | Invited to Training Camp (Signed) |
| | RW | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | C | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | D | Invited to Training Camp (Signed) |
| | D | Re-Signed (Two-year contract) |
| | C | Invited to Training Camp (Signed) |
| | D | Re-Signed (One-year contract) |
| | C | Re-Signed (One-year, two-way contract) |
| | RW | Re-Signed (One-year contract) |
| | LW | Became Unrestricted Free Agent (Not tendered a qualifying offer) |
| | D | Became Unrestricted Free Agent (Signed) |
| | D | Became Unrestricted Free Agent (Signed) |
| | RW | Became Unrestricted Free Agent (Not tendered a qualifying offer) |
| | D | Became Unrestricted Free Agent (Signed) |
| | D | Became Unrestricted Free Agent (Signed) |
| | LW | Became Unrestricted Free Agent (Not tendered a qualifying offer) |
| | G | Became Unrestricted Free Agent (Signed) |
| | D | Became Unrestricted Free Agent (Signed) |
| | G | Signed as Free Agent (One-year contract) |
| | LW | Signed as Free Agent (One-year contract) |
| | D | Signed as Free Agent (One-year, two-way contract) |
| | RW | Became Unrestricted Free Agent (Signed) |
| | RW | Became Unrestricted Free Agent (Signed) |
| | LW | Became Unrestricted Free Agent (Signed) |
| | D | Contract extended (One-year contract extension) |
| | C | Contract extended (One-year contract extension) |
| | LW | Contract extended (Two-year contract extension) |
| | RW | Contract extended (Four-year contract extension) |
| | D | Contract extended (One-year, two-way contract extension) |
| | LW | Traded (for Brock Faber, '22 1st-rd pick) From |
| | D | Contract extended (Two-year contract extension) |
| | RW | Contract extended (Two-year, two-way contract extension) |
| | G | Sent to minors (Ontario-AHL) |
| | RW | Retired (Signed) |
| | G | Called up from minors (from Ontario-AHL) |
| | C | Signed (Three-year, entry-level contract) |
| | C | Sent to minors (Ontario-AHL) |
| | C | Called up from minors (from Ontario-AHL) |
| | D | Signed (Three-year, entry-level contract) |
| | LW | Signed (Two-year, entry-level contract) |
| | G | Signed (One-year, entry-level contract) |
| | D | Traded (for Nelson Nogier) To |
| | D | Traded (for Brayden Burke) From |
| | D | Traded (for Markus Phillips) From |
| | LW | Traded (for Frederic Allard) To |
| | C | Contract extended (Two-year contract extension) |
| | D | Sent to minors (Ontario-AHL) |
| | RW | Sent to minors (Ontario-AHL) |
| | D | Traded (for '22 7th-rd pick) From |
| | RW | Signed as Free Agent (One-year, entry-level contract) |
| | D | Called up from minors (from Ontario-AHL) |
| | D | Sent to minors (Ontario-AHL) |
| | RW | Called up from minors (from Ontario-AHL) |
| | D | Called up from minors (from Ontario-AHL) |
| | D | Called up from minors (from Ontario-AHL) |
| | RW | Sent to minors (Ontario-AHL) |
| | D | Sent to minors (Ontario-AHL) |
| | D | Sent to minors (Ontario-AHL) |
| | C | Sent to minors (Ontario-AHL) |
| | RW | Called up from minors (from Ontario-AHL) |
| | D | Called up from minors (from Ontario-AHL) |
| | RW | Called up from minors (from Ontario-AHL) |
| | D | Called up from minors (from Ontario-AHL) |
| | C | Called up from minors (from Ontario-AHL) |
| | D | Called up from minors (from Ontario-AHL) |
| | C | Called up from minors (from Ontario-AHL) |
| | C | Sent to minors (Ontario-AHL for conditioning stint) |
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