Transactions
| Date | Player | Transactions |
| 8/20 | Marco Estrada, P | Recalled From Minors Rehab Assignment |
| 8/20 | Marco Estrada, P | Removed From 60-Day IL (Lumbar strain) |
| 8/20 | Marco Estrada, P | Released |
| 8/20 | A.J. Puk, P | Purchased From Minors |
| 8/19 | Dustin Garneau, C | Outrighted to Minors |
| 8/18 | Wei-Chung Wang, P | Sent to Minors |
| 8/16 | Dustin Garneau, C | Designated for Assignment |
| 8/16 | Josh Phegley, C | Recalled From Minors Rehab Assignment |
| 8/16 | Josh Phegley, C | Removed From 10-Day IL (Left thumb contusion) |
| 8/14 | Jake Buchanan, P | Released |
| 8/14 | Matt Harvey, P | Signed to a Minor League Contract |
| 8/14 | Corban Joseph, 1B | Purchased From Minors |
| 8/14 | Beau Taylor, C | Designated for Assignment |
| 8/13 | Sean Manaea, P | Sent to Minors For Rehabilitation |
| 8/13 | Nick Martini, LF | Sent to Minors |
| 8/11 | Josh Phegley, C | Sent to Minors For Rehabilitation |
| 8/3 | Ryan Dull, P | Designated for Assignment |
| 8/3 | Dustin Garneau, C | Acquired Off Waivers Los Angeles |
| 8/3 | Stephen Piscotty, RF | Recalled From Minors Rehab Assignment |
| 8/3 | Stephen Piscotty, RF | Removed From 10-Day IL (Right knee sprain) |
| 8/3 | Beau Taylor, C | Sent to Minors |
| 8/3 | Andrew Triggs, P | Cleared Waivers and Became a Free Agent |
| 8/2 | Franklin Barreto, 2B | Sent to Minors |
| 8/2 | Sean Manaea, P | Recalled From Minors Rehab Assignment |
| 8/1 | Daniel Mengden, P | Sent to Minors |
| 8/1 | Andrew Triggs, P | Released |
| 7/31 | Ramón Laureano, CF | Placed on 10-Day IL (Stress reaction in right shin) |
| 7/31 | Nick Martini, LF | Called Up from Minors |
| 7/31 | Josh Phegley, C | Placed on 10-Day IL (Left thumb contusion) |
| 7/31 | Tanner Roark, P | Traded Cincinnati (for OF Jameson Hannah) |
| 7/31 | Brian Schlitter, P | Outrighted to Minors |
| 7/31 | Beau Taylor, C | Called Up from Minors |
| 7/31 | Andrew Triggs, P | Designated for Assignment |
| 7/30 | Nick Hundley, C | Cleared Waivers and Became a Free Agent |
| 7/29 | Jharel Cotton, P | Recalled From Minors Rehab Assignment |
| 7/29 | Jharel Cotton, P | Removed From 60-Day IL (Recovery from right shoulder surgery) |
| 7/29 | Jharel Cotton, P | Sent to Minors |
| 7/29 | Brian Schlitter, P | Designated for Assignment |
| 7/27 | Jake Diekman, P | Traded Kansas City (for P Ismael Aquino and OF Dairon Blanco) |
| 7/27 | Nick Hundley, C | Released |
| 7/27 | Stephen Piscotty, RF | Sent to Minors For Rehabilitation |
| 7/25 | Brett Anderson, P | Reinstated from Paternity Leave List |
| 7/25 | Marco Estrada, P | Sent to Minors For Rehabilitation |
| 7/24 | Tanner Anderson, P | Sent to Minors |
| 7/24 | Nick Hundley, C | Recalled From Minors Rehab Assignment |
| 7/24 | Nick Hundley, C | Removed From 10-Day IL (Back spasms) |
| 7/24 | Nick Hundley, C | Designated for Assignment |
| 7/23 | Tanner Anderson, P | Called Up from Minors |
| 7/23 | Nick Martini, LF | Sent to Minors |
| 7/22 | Brett Anderson, P | Placed on Paternity Leave List |
| 7/22 | Nick Martini, LF | Called Up from Minors |
| 7/14 | Homer Bailey, P | Traded Kansas City (for INF Kevin Merrell) |
| 7/14 | J.B. Wendelken, P | Sent to Minors |
| 7/12 | Nick Hundley, C | Sent to Minors For Rehabilitation |
| 7/9 | Jharel Cotton, P | Sent to Minors For Rehabilitation |
| 7/8 | Sean Manaea, P | Sent to Minors For Rehabilitation |
| 7/6 | J.B. Wendelken, P | Called Up from Minors |
| 7/5 | Tanner Anderson, P | Sent to Minors |
| 7/5 | Paul Blackburn, P | Called Up from Minors |
| 7/5 | Paul Blackburn, P | Sent to Minors |
| 7/3 | Aaron Brooks, P | Designated for Assignment |
| 7/3 | Blake Treinen, P | Recalled From Minors Rehab Assignment |
| 7/3 | Blake Treinen, P | Removed From 10-Day IL (Strained right shoulder) |
| 7/2 | Marco Estrada, P | Transferred to 60-Day IL (Lumbar strain) |
| 7/2 | Chris Herrmann, C | Recalled From Minors Rehab Assignment |
| 7/2 | Chris Herrmann, C | Removed From 60-Day IL (Right knee surgery) |
| 7/1 | Blake Treinen, P | Sent to Minors For Rehabilitation |
| 6/30 | Franklin Barreto, 2B | Called Up from Minors |
| 6/30 | Stephen Piscotty, RF | Placed on 10-Day IL (Right knee sprain) |
| 6/30 | Beau Taylor, C | Sent to Minors |
| 6/26 | Daniel Mengden, P | Called Up from Minors |
| 6/26 | Taylor Motter, SS | Signed to a Minor League Contract |
| 6/25 | J.B. Wendelken, P | Sent to Minors |
| 6/23 | Brian Schlitter, P | Purchased From Minors |
| 6/23 | Blake Treinen, P | Placed on 10-Day IL (Strained right shoulder) |
| 6/21 | Frankie Montas, P | Suspension Announced By League (80 games for violating MLB drug program) |
| 6/21 | Frankie Montas, P | Starting to Serve Illegal Substance Suspension |
| 6/21 | J.B. Wendelken, P | Called Up from Minors |
| 6/13 | Chris Herrmann, C | Sent to Minors For Rehabilitation |
| 6/10 | Tanner Anderson, P | Called Up from Minors |
| 6/9 | Ryan Dull, P | Sent to Minors |
| 6/8 | Paul Blackburn, P | Called Up from Minors (recalled as 26th roster player) |
| 6/8 | Paul Blackburn, P | Return of 26th man |
| 6/8 | Nick Hundley, C | Placed on 10-Day IL (Back spasms) |
| 6/8 | Beau Taylor, C | Purchased From Minors |
| 6/6 | Ryan Dull, P | Called Up from Minors |
| 6/6 | Daniel Mengden, P | Sent to Minors |
| 6/1 | Skye Bolt, CF | Sent to Minors |
| 6/1 | Khris Davis, LF | Removed From 10-Day IL (Left hip/oblique contusion) |
| 5/30 | Fernando Rodney, P | Cleared Waivers and Became a Free Agent |
| 5/29 | Jharel Cotton, P | Recalled From Minors Rehab Assignment |
| 5/28 | Nick Martini, LF | Removed From 10-Day IL (Sprained right knee) |
| 5/28 | Nick Martini, LF | Sent to Minors |
| 5/28 | Fernando Rodney, P | Released |
| 5/27 | Nick Martini, LF | Recalled From Minors Rehab Assignment |
| 5/25 | Fernando Rodney, P | Designated for Assignment |
| 5/25 | Wei-Chung Wang, P | Purchased From Minors |
| 5/24 | Skye Bolt, CF | Called Up from Minors |
| 5/24 | Khris Davis, LF | Placed on 10-Day IL (Left hip/oblique contusion) |
| 5/18 | Cameron Rupp, C | Signed to a Minor League Contract |
| 5/17 | Jharel Cotton, P | Sent to Minors For Rehabilitation |
| 5/13 | Mark Canha, LF | Recalled From Minors Rehab Assignment |
| 5/13 | Mark Canha, LF | Removed From 10-Day IL (Sprained right wrist) |
| 5/13 | Kendrys Morales, DH | Designated for Assignment |
| 5/12 | Daniel Mengden, P | Called Up from Minors |
| 5/12 | J.B. Wendelken, P | Sent to Minors |
| 5/10 | Mark Canha, LF | Sent to Minors For Rehabilitation |
| 5/8 | Nick Martini, LF | Sent to Minors For Rehabilitation |
| 5/7 | Skye Bolt, CF | Sent to Minors |
| 5/7 | Matt Olson, 1B | Recalled From Minors Rehab Assignment |
| 5/7 | Matt Olson, 1B | Removed From 10-Day IL (Right hand surgery) |
| 5/3 | Skye Bolt, CF | Called Up from Minors |
| 5/1 | Ryan Dull, P | Sent to Minors |
| 5/1 | Matt Olson, 1B | Sent to Minors For Rehabilitation |
| 4/29 | Ryan Buchter, P | Called Up from Minors |
| 4/29 | Mark Canha, LF | Placed on 10-Day IL (Sprained right wrist) |
| 4/22 | Ryan Buchter, P | Sent to Minors |
| 4/22 | Ryan Dull, P | Called Up from Minors |
| 4/18 | Khris Davis, LF | Signed ( 2020-2021)(two-year extension) |
| 4/17 | Chris Bassitt, P | Called Up from Minors |
| 4/17 | Marco Estrada, P | Placed on 10-Day IL (Lumbar strain) |
| 4/15 | Chris Bassitt, P | Recalled From Minors Rehab Assignment |
| 4/15 | Chris Bassitt, P | Removed From 10-Day IL (Lower leg contusion) |
| 4/15 | Chris Bassitt, P | Sent to Minors |
| 4/10 | Edwin Jackson, P | Signed to a Minor League Contract |
| 4/7 | Parker Bridwell, P | Released |
| 4/4 | Chris Bassitt, P | Sent to Minors For Rehabilitation |
| 3/30 | Cliff Pennington, 2B | Released |
| 3/28 | Franklin Barreto, 2B | Sent to Minors |
| 3/27 | Jharel Cotton, P | Transferred to 60-Day IL (Recovery from right shoulder surgery) |
| 3/27 | Kendrys Morales, DH | Traded Toronto (for SS Jesus Lopez) |
| 3/26 | Chris Bassitt, P | Placed on 10-Day IL (Lower leg contusion) |
| 3/26 | Ryan Dull, P | Sent to Minors |
| 3/26 | Matt Olson, 1B | Placed on 10-Day IL (Right hand surgery) |
| 3/19 | Jharel Cotton, P | Placed on 10-Day IL (Recovery from right shoulder surgery) |
| 3/19 | Chris Herrmann, C | Placed on 60-Day IL (Right knee surgery) |
| 3/19 | Nick Hundley, C | Purchased From Minors |
| 3/19 | Nick Martini, LF | Placed on 10-Day IL (Sprained right knee) |
| 3/12 | Dustin Fowler, CF | Sent to Minors |
| 3/11 | Daniel Mengden, P | Sent to Minors |
| 3/10 | Tanner Anderson, P | Sent to Minors |
| 3/10 | Paul Blackburn, P | Sent to Minors |
| 3/10 | Andrew Triggs, P | Sent to Minors |
| 3/3 | Luis Barrera, CF | Sent to Minors |
| 3/3 | Skye Bolt, CF | Sent to Minors |
| 3/3 | Grant Holmes, P | Sent to Minors |
| 3/3 | Jorge Mateo, SS | Sent to Minors |
| 3/2 | James Kaprielian, P | Sent to Minors |
| 2/15 | Daniel Gossett, P | Placed on 60-Day IL (Recovery from right elbow surgery) |
| 2/15 | Robbie Grossman, LF | Signed as Free Agent ( 2019)(one-year contract) |
| 2/15 | Cliff Pennington, 2B | Signed to a Minor League Contract |
| 2/13 | Brett Anderson, P | Signed as Free Agent ( 2019)(one-year contract) |
| 2/13 | Sean Manaea, P | Placed on 60-Day IL (Recovery from left shoulder surgery) |
| 2/11 | Nick Hundley, C | Signed to a Minor League Contract |
| 2/8 | Logan Verrett, P | Signed to a Minor League Contract |
| 2/4 | Jerry Blevins, P | Signed to a Minor League Contract |
| 2/2 | Blake Treinen, P | Signed ( 2019)(wins arbitration) |
| 2/2 | Wei-Chung Wang, P | Signed to a Minor League Contract |
| 1/25 | Parker Bridwell, P | Outrighted to Minors |
| 1/25 | Eric Campbell, 1B | Signed to a Minor League Contract |
| 1/25 | Marco Estrada, P | Signed as Free Agent ( 2019)(one-year contract) |
| 1/25 | Dean Kiekhefer, P | Signed to a Minor League Contract |
| 1/25 | Kyle Lobstein, P | Signed to a Minor League Contract |
| 1/24 | Kyle Crockett, P | Signed to a Minor League Contract |
| 1/22 | Parker Bridwell, P | Acquired Off Waivers Los Angeles |
| 1/11 | Mark Canha, LF | Signed ( 2019)(avoids arbitration) |
| 1/11 | Khris Davis, LF | Signed ( 2019)(avoids arbitration) |
| 1/11 | Sean Manaea, P | Signed ( 2019)(avoids arbitration) |
| 1/11 | Jurickson Profar, SS | Signed ( 2019)(avoids arbitration) |
| 1/11 | Marcus Semien, SS | Signed ( 2019)(avoids arbitration) |
| 1/10 | Ryan Buchter, P | Signed ( 2019)(avoids arbitration) |
| 12/26 | Mike Fiers, P | Signed as Free Agent ( 2019-2020)(two-year contract) |
| 12/21 | Jurickson Profar, SS | Traded Texas (three-team, seven-player deal) |
| 12/21 | Joakim Soria, P | Signed as Free Agent ( 2019-2020)(two-year contract) |
| 12/13 | Corban Joseph, 1B | Drafted Via Rule 5 (Triple-A phase) |
| 12/11 | Chris Herrmann, C | Signed as Free Agent ( 2019)(one-year contract) |
| 11/30 | Ryan Dull, P | Signed ( 2019)(avoids arbitration) |
| 11/30 | Mike Fiers, P | Free Agent - No Contract Offer (non-tendered) |
| 11/30 | Cory Gearrin, P | Free Agent - No Contract Offer (non-tendered) |
| 11/30 | Kendall Graveman, P | Free Agent - No Contract Offer (non-tendered) |
| 11/30 | Liam Hendriks, P | Signed ( 2019)(avoids arbitration) |
| 11/29 | Josh Phegley, C | Signed ( 2019)(avoids arbitration) |
| 11/22 | Eric Jokisch, P | Signed to Play in Korea (Nexen Heroes) |
| 11/20 | Tanner Anderson, P | Traded Pittsburgh (for RHP Wilkin Ramos) |
| 11/20 | Luis Barrera, CF | Purchased From Minors |
| 11/20 | Skye Bolt, CF | Purchased From Minors |
| 11/20 | Grant Holmes, P | Purchased From Minors |
| 11/20 | James Kaprielian, P | Purchased From Minors |
| 11/19 | Raul Alcántara, P | Signed to Play in Korea (kt wiz) |
| 11/16 | Brian Schlitter, P | Signed to a Minor League Contract |
| 11/14 | Jake Buchanan, P | Signed to a Minor League Contract |
| 11/12 | Beau Taylor, C | Signed to a Minor League Contract |
| 11/2 | Jeremy Bleich, P | Declared Free Agency |
| 11/2 | Eric Jokisch, P | Declared Free Agency |
| 11/2 | Steve Lombardozzi, 2B | Declared Free Agency |
| 11/2 | Josh Lucas, P | Declared Free Agency |
| 11/2 | Bruce Maxwell, C | Declared Free Agency |
| 11/2 | Boog Powell, CF | Declared Free Agency |
| 11/2 | Carlos Ramírez, P | Declared Free Agency |
| 11/2 | Beau Taylor, C | Outrighted to Minors |
| 11/2 | Beau Taylor, C | Declared Free Agency |
| 10/31 | Kendall Graveman, P | Removed From 60-Day DL (Right elbow surgery - out for season) |
| 10/31 | Fernando Rodney, P | Signed ( 2019)(team option exercised) |
| 10/29 | Brett Anderson, P | Declared Free Agency |
| 10/29 | Paul Blackburn, P | Removed From 60-Day DL (Right elbow lateral epicondylitis) |
| 10/29 | Trevor Cahill, P | Declared Free Agency |
| 10/29 | Jharel Cotton, P | Removed From 60-Day DL (Right elbow surgery - out for season) |
| 10/29 | Jeurys Familia, P | Declared Free Agency |
| 10/29 | Daniel Gossett, P | Removed From 60-Day DL (Right elbow surgery - out for season) |
| 10/29 | Edwin Jackson, P | Declared Free Agency |
| 10/29 | Matt Joyce, RF | Declared Free Agency |
| 10/29 | Shawn Kelley, P | Declared Free Agency |
| 10/29 | Jed Lowrie, 2B | Declared Free Agency |
| 10/29 | Jonathan Lucroy, C | Declared Free Agency |
| 10/29 | Andrew Triggs, P | Removed From 60-Day DL (Right arm nerve irritation) |
| 10/15 | Jake Smolinski, CF | Refused Minor League Assignment - Free Agent |
| 10/13 | Chris Hatcher, P | Refused Minor League Assignment - Free Agent |
| 10/13 | Dean Kiekhefer, P | Refused Minor League Assignment - Free Agent |
| 10/12 | Dean Kiekhefer, P | Outrighted to Minors |
| 10/12 | Jake Smolinski, CF | Removed From 60-Day DL (Blood clot, left calf) |
| 10/12 | Jake Smolinski, CF | Outrighted to Minors |
| 10/4 | Raul Alcántara, P | Refused Minor League Assignment - Free Agent |
| 10/2 | Sean Manaea, P | Removed From 10-Day DL (Left shoulder impingement) |
| 10/2 | Jorge Mateo, SS | Called Up from Minors |
| 10/1 | Danny Coulombe, P | Refused Minor League Assignment - Free Agent |
Last updated Aug. 21, 1:55 A.M. ET
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