Transactions
| Date | Player | Transactions |
| 4/19 | Stephen Piscotty, RF | Reinstated from Paternity Leave List |
| 4/19 | Ka'ai Tom, CF | Designated for Assignment |
| 4/16 | Vimael Machín, SS | Called Up from Minors |
| 4/16 | Stephen Piscotty, RF | Placed on Paternity Leave List |
| 4/8 | Deolis Guerra, P | Purchased From Minors |
| 4/8 | A.J. Puk, P | Placed on 10-Day IL (Strained left biceps) |
| 4/8 | Trevor Rosenthal, P | Transferred to 60-Day IL (Right shoulder inflammation) |
| 4/6 | Seth Brown, 1B | Called Up from Minors |
| 4/6 | Reymin Guduan, P | Placed on 10-Day IL (Sprained left thumb) |
| 4/6 | Burch Smith, P | Placed on 10-Day IL (Strained right groin) |
| 4/6 | Jordan Weems, P | Called Up from Minors |
| 4/5 | Chad Pinder, 2B | Placed on 10-Day IL (Sprained left knee) |
| 4/5 | A.J. Puk, P | Called Up from Minors |
| 4/1 | Skye Bolt, CF | Designated for Assignment |
| 4/1 | Mike Fiers, P | Placed on 10-Day IL (Lumbar strain) |
| 4/1 | Reymin Guduan, P | Purchased From Minors |
| 4/1 | Jed Lowrie, 2B | Purchased From Minors |
| 4/1 | Trevor Rosenthal, P | Placed on 10-Day IL (Right shoulder inflammation) |
| 3/31 | Daulton Jefferies, P | Sent to Minors |
| 3/31 | A.J. Puk, P | Sent to Minors |
| 3/28 | Seth Brown, 1B | Sent to Minors |
| 3/28 | Vimael Machín, SS | Sent to Minors |
| 3/24 | Austin Allen, C | Sent to Minors |
| 3/21 | Jordan Weems, P | Sent to Minors |
| 3/15 | Dany Jiménez, P | Returned Drafted Player |
| 3/15 | Frankie Montas, P | Removed From 10-Day IL (COVID-19 injured list (positive test)) |
| 3/14 | Luis Barrera, CF | Sent to Minors |
| 3/14 | Skye Bolt, CF | Sent to Minors |
| 3/14 | Wandisson Charles, P | Sent to Minors |
| 3/14 | Greg Deichmann, RF | Sent to Minors |
| 3/14 | Grant Holmes, P | Sent to Minors |
| 3/14 | James Kaprielian, P | Sent to Minors |
| 3/14 | Miguel Romero, P | Sent to Minors |
| 2/27 | Paul Blackburn, P | Outrighted to Minors |
| 2/23 | Paul Blackburn, P | Designated for Assignment |
| 2/23 | Mitch Moreland, 1B | Signed as Free Agent ( 2021)(one-year contract) |
| 2/22 | Dustin Fowler, CF | Designated for Assignment |
| 2/22 | Trevor Rosenthal, P | Signed as Free Agent ( 2021)(one-year contract) |
| 2/21 | Yusmeiro Petit, P | Signed as Free Agent ( 2021)(one-year contract) |
| 2/18 | Frankie Montas, P | Placed on 10-Day IL (COVID-19 injured list (positive test)) |
| 2/18 | Sergio Romo, P | Signed as Free Agent ( 2021)(one-year contract) |
| 2/16 | Mike Fiers, P | Signed as Free Agent ( 2021)(one-year contract) |
| 2/16 | Nate Orf, 2B | Retired |
| 2/12 | Adam Kolarek, P | Traded Los Angeles (for INF Sheldon Neuse, four-player deal) |
| 2/10 | Jed Lowrie, 2B | Signed to a Minor League Contract |
| 2/6 | Elvis Andrus, SS | Traded Texas (for OF/DH Khris Davis, five-player deal) |
| 2/6 | Aramis Garcia, C | Traded Texas (for OF/DH Khris Davis, five-player deal) |
| 2/2 | Deolis Guerra, P | Signed to a Minor League Contract |
| 1/30 | Cole Irvin, P | Traded Philadelphia (for cash considerations) |
| 1/29 | Carlos Pérez, C | Signed to a Minor League Contract |
| 1/15 | Chris Bassitt, P | Signed ( 2021)(avoids arbitration) |
| 1/15 | Mark Canha, LF | Signed ( 2021)(avoids arbitration) |
| 1/15 | Matt Chapman, 3B | Signed ( 2021)(avoids arbitration) |
| 1/15 | Sean Manaea, P | Signed ( 2021)(avoids arbitration) |
| 1/15 | Frankie Montas, P | Signed ( 2021)(avoids arbitration) |
| 1/15 | Lou Trivino, P | Signed ( 2021)(avoids arbitration) |
| 1/14 | Nik Turley, P | Traded Pittsburgh (for cash considerations) |
| 12/25 | Raul Alcántara, P | Signed to Play in Japan (Hanshin Tigers) |
| 12/14 | Reymin Guduan, P | Signed to a Minor League Contract |
| 12/10 | Brett Graves, P | Drafted Via Rule 5 (Triple-A phase) |
| 12/10 | Dany Jiménez, P | Drafted Via Rule 5 |
| 12/10 | Ka'ai Tom, CF | Drafted Via Rule 5 |
| 12/2 | Matt Olson, 1B | Signed ( 2021)(avoids arbitration) |
| 12/1 | Tony Kemp, LF | Signed ( 2021)(avoids arbitration) |
| 12/1 | Francisco Peña, C | Signed to a Minor League Contract |
| 12/1 | Chad Pinder, 2B | Signed ( 2021)(avoids arbitration) |
| 12/1 | Burch Smith, P | Signed ( 2021)(avoids arbitration) |
| 11/20 | Wandisson Charles, P | Purchased From Minors |
| 11/20 | Greg Deichmann, RF | Purchased From Minors |
| 11/20 | Montana DuRapau, P | Signed to a Minor League Contract |
| 11/20 | Pete Kozma, SS | Signed to a Minor League Contract |
| 11/20 | Miguel Romero, P | Purchased From Minors |
| 11/20 | Frank Schwindel, RF | Signed to a Minor League Contract |
| 11/2 | Carlos Pérez, C | Declared Free Agency |
| 10/28 | Mike Fiers, P | Declared Free Agency |
| 10/28 | Robbie Grossman, LF | Declared Free Agency |
| 10/28 | Liam Hendriks, P | Declared Free Agency |
| 10/28 | Tommy La Stella, 2B | Declared Free Agency |
| 10/28 | Jake Lamb, 3B | Declared Free Agency |
| 10/28 | T.J. McFarland, P | Declared Free Agency |
| 10/28 | Mike Minor, P | Declared Free Agency |
| 10/28 | Yusmeiro Petit, P | Declared Free Agency |
| 10/28 | A.J. Puk, P | Removed From 60-Day IL (Left shoulder strain) |
| 10/28 | Marcus Semien, SS | Declared Free Agency |
| 10/28 | Burch Smith, P | Removed From 60-Day IL (Strained right forearm) |
| 10/28 | Joakim Soria, P | Declared Free Agency |
| 10/9 | Daniel Mengden, P | Refused Minor League Assignment - Free Agent |
Last updated Apr. 20, 1:38 A.M. ET
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