Transactions & Injuries
          
            
  
    
          
              
    | Date | Description | |
|---|---|---|
| 2024-25 | ||
| 2025-02-02 | 
                          
                 
              
            
                          Missed 18 games (back injury).
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| 2025-01-07 | 
                          
                 
              
            
                          Back injury, injured reserve.
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| 2024-12-27 | 
                          
                 
              
            
                          Back injury, day-to-day.
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| 2024-10-25 | 
                          
                 
              
            
                          Missed 4 games (undisclosed).
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| 2024-10-14 | 
                          
                 
              
            
                          Undisclosed, day-to-day.
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| 2024-10-09 | 
                          
                 
              
            
                          Signed by the Ottawa Senators to a four-year contract extension.
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| 2023-24 | ||
| 2024-06-24 | 
                          
                 
              
            
                          
                Acquired from the Boston Bruins
              
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                      The Ottawa Senators acquired goaltender Linus Ullmark from the Boston Bruins for goaltender Joonas Korpisalo, forward Mark Kastelic and a first-round draft pick in 2024 (No. 25 overall). | 
| 2024-02-14 | 
                          
                 
              
            
                          Fined $5,000 by the NHL. 
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| 2024-01-17 | 
                          
                 
              
            
                          Missed 3 games (lower body injury).
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| 2024-01-11 | 
                          
                 
              
            
                          Lower body injury, day-to-day.
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| 2022-23 | ||
| 2023-04-16 | 
                          
                 
              
            
                          Missed the last regular season game (undisclosed).
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| 2023-04-12 | 
                          
                 
              
            
                          Undisclosed, remainder of the regular season.
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| 2023-04-11 | 
                          
                 
              
            
                          Missed 1 game (lower body injury).
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| 2023-04-09 | 
                          
                 
              
            
                          Lower body injury, day-to-day.
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| 2021-22 | ||
| 2022-04-23 | 
                          
                 
              
            
                          Missed 3 games (upper body injury).
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| 2022-04-15 | 
                          
                 
              
            
                          Upper body injury, day-to-day.
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| 2021-07-28 | 
                          
                 
              
            
                          Signed as an unrestricted free agent by the Boston Bruins to a four-year contract.
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| 2020-21 | ||
| 2021-07-27 | 
                          
                 
              
            
                          Declared free agent.
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| 2021-05-08 | 
                          
                 
              
            
                          Missed the last 14 regular season games (lower body injury).
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| 2021-04-15 | 
                          
                 
              
            
                          Lower body injury, sidelined indefinitely.
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| 2021-03-27 | 
                          
                 
              
            
                          Missed 15 games (lower body injury).
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| 2021-02-27 | 
                          
                 
              
            
                          Lower body injury, injured reserve.
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| 2021-01-22 | 
                          
                 
              
            
                          Missed 2 games (personal reasons).
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| 2021-01-18 | 
                          
                 
              
            
                          Personal reasons, day-to-day.
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| 2020-10-25 | 
                          
                 
              
            
                          Re-signed as a restricted free agent by the Buffalo Sabres to a one-year contract.
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| 2020-10-10 | 
                          
                 
              
            
                          Filed for salary arbitration.
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| 2019-20 | ||
| 2020-10-07 | 
                          
                 
              
            
                          Buffalo Sabres tendered a qualifying offer.
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| 2020-03-06 | 
                          
                 
              
            
                          Missed 17 games (lower body injury).
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| 2020-01-29 | 
                          
                 
              
            
                          Lower body injury, injured reserve.
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| 2019-08-03 | 
                          
                 
              
            
                          Re-signed as a restricted free agent by the Buffalo Sabres to a one-year contract.
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| 2018-19 | ||
| 2019-06-25 | 
                          
                 
              
            
                          Buffalo Sabres tendered a qualifying offer.
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| 2018-12-31 | 
                          
                 
              
            
                          Missed 1 game (illness).
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| 2018-12-29 | 
                          
                 
              
            
                          Illness, day-to-day.
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| 2017-18 | ||
| 2018-04-08 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2018-04-07 | 
                          
                 
              
            
                          Missed the last 7 regular season games (upper body injury).
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| 2018-03-26 | 
                          
                 
              
            
                          Undisclosed, day-to-day.
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| 2018-03-17 | 
                          
                 
              
            
                          Missed 1 game (personal reasons).
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| 2018-03-15 | 
                          
                 
              
            
                          Personal reasons, day-to-day.
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| 2018-03-13 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2018-02-19 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2018-02-19 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2018-01-12 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2018-01-08 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2017-12-01 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2017-11-30 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2017-09-28 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2016-17 | ||
| 2017-06-13 | 
                          
                 
              
            
                          Signed by the Buffalo Sabres to a two-year contract extension.
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| 2017-04-11 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2017-04-07 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2017-04-06 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2017-04-05 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2017-03-01 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2017-02-26 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2017-01-20 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2017-01-19 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2017-01-14 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2017-01-10 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2016-12-02 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2016-12-01 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2016-10-29 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2016-10-24 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2016-10-08 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2016-10-07 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2016-10-06 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2015-16 | ||
| 2016-04-10 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2016-04-09 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2016-01-14 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2015-10-23 | 
                          
                 
              
            
                          Recalled from the Rochester Americans (AHL).
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| 2015-10-07 | 
                          
                 
              
            
                          Assigned to the Rochester Americans (AHL).
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| 2013-14 | ||
| 2014-05-27 | 
                          
                 
              
            
                          Signed by the Buffalo Sabres to a three-year entry-level contract.
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| 2011-12 | ||
| 2012-06-23 | 
                          
                 
              
            
                          Drafted by the Buffalo Sabres in the 6th round (163rd overall) in 2012.
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