Transactions
| Date | Player | Transactions |
| 5/18 | Tim Melville, P | Released |
| 4/9 | Mark Reynolds, 1B | Retired |
| 3/26 | Ryan Castellani, P | Sent to Minors |
| 3/26 | Yonathan Daza, CF | Sent to Minors |
| 3/26 | José Mujica, P | Sent to Minors |
| 3/26 | Jesus Tinoco, P | Sent to Minors |
| 3/10 | Ashton Goudeau, P | Sent to Minors |
| 3/9 | Harrison Musgrave, P | Released |
| 3/6 | Ben Bowden, P | Sent to Minors |
| 3/6 | Tyler Nevin, 1B | Sent to Minors |
| 3/6 | Antonio Santos, P | Sent to Minors |
| 2/21 | Daniel Bard, P | Signed to a Minor League Contract |
| 2/12 | Tony Wolters, C | Signed ( 2020)(loses arbitration) |
| 2/5 | Tim Collins, P | Signed to a Minor League Contract |
| 2/5 | Ubaldo Jiménez, P | Signed to a Minor League Contract |
| 2/4 | Mike Dunn, P | Retired |
| 1/31 | Zac Rosscup, P | Signed to a Minor League Contract |
| 1/31 | Trevor Story, SS | Signed ( 2020-2021)(two-year contract, avoids arbitration) |
| 1/17 | Justin Lawrence, P | Suspension Announced By League (80 games for violating MLB drug program) |
| 1/17 | Justin Lawrence, P | Starting to Serve Illegal Substance Suspension |
| 1/10 | David Dahl, LF | Signed ( 2020)(avoids arbitration) |
| 1/10 | Carlos Estévez, P | Signed ( 2020)(avoids arbitration) |
| 1/10 | Kyle Freeland, P | Signed ( 2020)(avoids arbitration) |
| 1/10 | Jon Gray, P | Signed ( 2020)(avoids arbitration) |
| 1/6 | Elias Díaz, C | Signed to a Minor League Contract |
| 1/6 | Kelby Tomlinson, 2B | Signed to a Minor League Contract |
| 1/4 | Michael Choice, RF | Signed to a Minor League Contract |
| 1/4 | Wes Parsons, P | Signed to a Minor League Contract |
| 1/3 | Chris Owings, SS | Signed to a Minor League Contract |
| 12/18 | Mike Gerber, RF | Signed to a Minor League Contract |
| 12/16 | Joe Harvey, P | Outrighted to Minors |
| 12/11 | Drew Butera, C | Signed to a Minor League Contract |
| 12/11 | Scott Oberg, P | Signed ( 2020-2022; Opt 2023)(three-year extension, avoids arbitration) |
| 12/9 | Joe Harvey, P | Designated for Assignment |
| 12/9 | Tyler Kinley, P | Acquired Off Waivers Miami |
| 12/2 | Wes Parsons, P | Free Agent - No Contract Offer (non-tendered) |
| 11/27 | José Mujica, P | Signed as Free Agent ( 2020)(one-year contract) |
| 11/27 | Wes Parsons, P | Designated for Assignment |
| 11/20 | Ben Bowden, P | Purchased From Minors |
| 11/20 | Ashton Goudeau, P | Purchased From Minors |
| 11/20 | Tyler Nevin, 1B | Purchased From Minors |
| 11/20 | Antonio Santos, P | Purchased From Minors |
| 11/12 | Eric Stamets, 2B | Signed to a Minor League Contract |
| 11/4 | Pat Dean, P | Declared Free Agency |
| 11/4 | Jon Gray, P | Removed From 60-Day IL (Fractured left foot) |
| 11/4 | Scott Oberg, P | Removed From 60-Day IL (Blood clot in right arm) |
| 11/4 | Brendan Rodgers, SS | Removed From 60-Day IL (Right shoulder surgery - out for season) |
| 10/31 | Yonder Alonso, 1B | Declared Free Agency |
| 10/31 | Drew Butera, C | Declared Free Agency |
| 10/30 | Chad Bettis, P | Removed From 60-Day IL (Left hip impingement) |
| 10/30 | Chad Bettis, P | Declared Free Agency |
| 10/30 | Tim Melville, P | Outrighted to Minors |
| 10/26 | DJ Johnson, P | Signed to Play in Japan (Hiroshima Carp) |
| 10/25 | DJ Johnson, P | Cleared Waivers and Became a Free Agent |
| 10/23 | DJ Johnson, P | Released |
| 10/3 | Chris Rusin, P | Refused Minor League Assignment - Free Agent |
Last updated May 25, 1:11 A.M. ET
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