Transactions
| Date | Player | Transactions |
| 7/15 | Scott Barlow, P | Called Up from Minors |
| 7/15 | Mike Montgomery, P | Traded Chi. Cubs (for C Martin Maldonado) |
| 7/12 | Terrance Gore, LF | Designated for Assignment |
| 7/12 | Bubba Starling, CF | Purchased From Minors |
| 7/3 | Brad Boxberger, P | Cleared Waivers and Became a Free Agent |
| 7/2 | Adalberto Mondesi, SS | Recalled From Minors Rehab Assignment |
| 7/2 | Adalberto Mondesi, SS | Removed From 10-Day IL (Right groin discomfort) |
| 7/2 | Jake Newberry, P | Called Up from Minors |
| 7/1 | Humberto Arteaga, SS | Sent to Minors |
| 7/1 | Scott Barlow, P | Sent to Minors |
| 7/1 | Brad Boxberger, P | Released |
| 6/29 | Adalberto Mondesi, SS | Sent to Minors For Rehabilitation |
| 6/26 | Brad Boxberger, P | Designated for Assignment |
| 6/26 | Tim Hill, P | Called Up from Minors |
| 6/26 | Eric Skoglund, P | Recalled From Minors Rehab Assignment |
| 6/26 | Eric Skoglund, P | Reinstated from Illegal Substance Suspension |
| 6/26 | Eric Skoglund, P | Sent to Minors |
| 6/21 | Hunter Dozier, 3B | Recalled From Minors Rehab Assignment |
| 6/21 | Hunter Dozier, 3B | Removed From 10-Day IL (Chest contusion) |
| 6/21 | Chase d'Arnaud, SS | Signed to a Minor League Contract |
| 6/20 | Humberto Arteaga, SS | Purchased From Minors |
| 6/20 | Jorge Bonifacio, RF | Sent to Minors |
| 6/20 | Ben Lively, P | Designated for Assignment |
| 6/20 | Adalberto Mondesi, SS | Placed on 10-Day IL (Right groin discomfort) |
| 6/19 | Drew Storen, P | Released |
| 6/17 | Hunter Dozier, 3B | Sent to Minors For Rehabilitation |
| 6/14 | Jorge Bonifacio, RF | Called Up from Minors |
| 6/14 | Ryan O'Hearn, 1B | Sent to Minors |
| 6/13 | Lucas Duda, 1B | Recalled From Minors Rehab Assignment |
| 6/13 | Lucas Duda, 1B | Removed From 10-Day IL (Lumbar strain) |
| 6/13 | Kelvin Gutierrez, 3B | Called Up from Minors (recalled as 26th roster player) |
| 6/13 | Kelvin Gutierrez, 3B | Return of 26th man |
| 6/12 | Kelvin Gutierrez, 3B | Sent to Minors |
| 6/11 | Eric Skoglund, P | Sent to Minors For Rehabilitation |
| 6/6 | Chris Owings, SS | Cleared Waivers and Became a Free Agent |
| 6/4 | Kelvin Gutierrez, 3B | Called Up from Minors |
| 6/4 | Chris Owings, SS | Released |
| 6/3 | Hunter Dozier, 3B | Placed on 10-Day IL (Chest contusion) |
| 5/31 | Cheslor Cuthbert, 3B | Purchased From Minors |
| 5/31 | Chris Owings, SS | Designated for Assignment |
| 5/29 | Michael Ynoa, P | Released |
| 5/28 | Lucas Duda, 1B | Sent to Minors For Rehabilitation |
| 5/28 | Ben Lively, P | Called Up from Minors (recalled as 26th roster player) |
| 5/28 | Ben Lively, P | Return of 26th man |
| 5/25 | Brian Flynn, P | Removed From 10-Day IL (Sprained left UCL) |
| 5/25 | Richard Lovelady, P | Called Up from Minors (recalled as 26th roster player) |
| 5/25 | Richard Lovelady, P | Return of 26th man |
| 5/24 | Richard Lovelady, P | Sent to Minors |
| 5/23 | Brian Flynn, P | Recalled From Minors Rehab Assignment |
| 5/22 | Jake Newberry, P | Called Up from Minors (recalled as 26th roster player) |
| 5/22 | Jake Newberry, P | Return of 26th man |
| 5/21 | Kevin McCarthy, P | Called Up from Minors |
| 5/20 | Frank Schwindel, RF | Cleared Waivers and Became a Free Agent |
| 5/19 | Heath Fillmyer, P | Sent to Minors |
| 5/18 | Frank Schwindel, RF | Released |
| 5/17 | Heath Fillmyer, P | Called Up from Minors |
| 5/16 | Kelvin Gutierrez, 3B | Sent to Minors |
| 5/14 | Nicky Lopez, SS | Purchased From Minors |
| 5/14 | Frank Schwindel, RF | Designated for Assignment |
| 5/12 | Jake Newberry, P | Sent to Minors |
| 5/6 | Glenn Sparkman, P | Called Up from Minors |
| 5/5 | Ben Lively, P | Sent to Minors |
| 5/1 | Glenn Sparkman, P | Called Up from Minors (recalled as 26th roster player) |
| 5/1 | Glenn Sparkman, P | Return of 26th man |
| 4/29 | Brad Keller, P | Reinstated From League Suspension |
| 4/27 | Heath Fillmyer, P | Sent to Minors |
| 4/27 | Ben Lively, P | Called Up from Minors |
| 4/26 | Lucas Duda, 1B | Placed on 10-Day IL (Lumbar strain) |
| 4/26 | Danny Duffy, P | Recalled From Minors Rehab Assignment |
| 4/26 | Danny Duffy, P | Removed From 10-Day IL (Left shoulder impingement) |
| 4/26 | Kelvin Gutierrez, 3B | Called Up from Minors |
| 4/24 | Brian Flynn, P | Sent to Minors For Rehabilitation |
| 4/24 | Tim Hill, P | Sent to Minors |
| 4/23 | Brad Keller, P | Starting to Serve Suspension |
| 4/22 | Tim Hill, P | Called Up from Minors |
| 4/21 | Glenn Sparkman, P | Sent to Minors |
| 4/20 | Danny Duffy, P | Sent to Minors For Rehabilitation |
| 4/19 | Brad Keller, P | Suspension Announced By League (five games) |
| 4/11 | Jake Newberry, P | Called Up from Minors |
| 4/11 | Frank Schwindel, RF | Sent to Minors |
| 4/9 | Chris Ellis, P | Returned Drafted Player |
| 4/9 | Heath Fillmyer, P | Called Up from Minors |
| 4/9 | Tim Hill, P | Sent to Minors |
| 4/9 | Richard Lovelady, P | Purchased From Minors |
| 4/9 | Kevin McCarthy, P | Sent to Minors |
| 4/8 | Glenn Sparkman, P | Called Up from Minors |
| 4/8 | Kyle Zimmer, P | Sent to Minors |
| 4/3 | Homer Bailey, P | Purchased From Minors |
| 4/3 | Chris Ellis, P | Designated for Assignment |
| 4/2 | Andrew Susac, C | Traded Baltimore (for cash considerations) |
| 3/28 | Danny Duffy, P | Placed on 10-Day IL (Left shoulder impingement) |
| 3/28 | Brian Flynn, P | Placed on 10-Day IL (Sprained left UCL) |
| 3/28 | Trevor Oaks, P | Placed on 60-Day IL (Torn labrum, right hip) |
| 3/28 | Frank Schwindel, RF | Purchased From Minors |
| 3/25 | Lucas Duda, 1B | Purchased From Minors |
| 3/25 | Brian Goodwin, LF | Released |
| 3/23 | Heath Fillmyer, P | Sent to Minors |
| 3/22 | Lucas Duda, 1B | Signed to a Minor League Contract |
| 3/22 | Meibrys Viloria, C | Sent to Minors |
| 3/19 | Jorge Bonifacio, RF | Sent to Minors |
| 3/19 | Brett Phillips, CF | Sent to Minors |
| 3/19 | Glenn Sparkman, P | Sent to Minors |
| 3/13 | Martín Maldonado, C | Signed as Free Agent ( 2019)(one-year contract) |
| 3/13 | Salvador Perez, C | Placed on 60-Day IL (Right elbow surgery - out for season) |
| 3/12 | Scott Blewett, P | Sent to Minors |
| 3/12 | Kelvin Gutierrez, 3B | Sent to Minors |
| 3/11 | Conner Greene, P | Sent to Minors |
| 3/11 | Josh Staumont, P | Sent to Minors |
| 3/10 | Arnaldo Hernandez, P | Sent to Minors |
| 3/10 | Ben Lively, P | Sent to Minors |
| 3/10 | Jake Newberry, P | Sent to Minors |
| 2/15 | Drew Storen, P | Signed to a Minor League Contract |
| 2/13 | Jake Diekman, P | Signed as Free Agent ( 2019; Opt 2020)(one-year contract) |
| 2/13 | Jesse Hahn, P | Placed on 60-Day IL (Recovery from right elbow surgery) |
| 2/9 | Homer Bailey, P | Signed to a Minor League Contract |
| 2/8 | Brad Boxberger, P | Signed as Free Agent ( 2019)(one-year contract) |
| 1/27 | Whit Merrifield, 2B | Signed ( 2019-2022; Opt 2023)(four-year extension) |
| 1/20 | Winston Abreu, P | Signed to a Minor League Contract |
| 1/16 | Eric Skoglund, P | Suspension Announced By League (80 games for violating MLB drug program) |
| 1/16 | Eric Skoglund, P | Starting to Serve Illegal Substance Suspension |
| 1/13 | Taylor Featherston, 2B | Signed to a Minor League Contract |
| 1/10 | Cheslor Cuthbert, 3B | Outrighted to Minors |
| 1/7 | Cheslor Cuthbert, 3B | Designated for Assignment |
| 1/7 | Kyle Zimmer, P | Signed as Free Agent ( 2019)(one-year contract) |
| 12/20 | Terrance Gore, LF | Signed as Free Agent ( 2019)(one-year contract) |
| 12/20 | Rosell Herrera, RF | Designated for Assignment |
| 12/17 | Jason Adam, P | Signed to a Minor League Contract |
| 12/17 | Bubba Starling, CF | Signed to a Minor League Contract |
| 12/13 | Chris Ellis, P | Traded Texas (for cash considerations) |
| 12/11 | Billy Hamilton, CF | Signed as Free Agent ( 2019; Opt 2020)(one-year contract) |
| 12/6 | Chris Owings, SS | Signed as Free Agent ( 2019)(one-year contract) |
| 12/4 | Andres Machado, P | Signed to a Minor League Contract |
| 12/1 | Burch Smith, P | Declared Free Agency |
| 11/30 | Jason Adam, P | Free Agent - No Contract Offer (non-tendered) |
| 11/30 | Andres Machado, P | Free Agent - No Contract Offer (non-tendered) |
| 11/30 | Burch Smith, P | Outrighted to Minors |
| 11/30 | Bubba Starling, CF | Free Agent - No Contract Offer (non-tendered) |
| 11/29 | Cheslor Cuthbert, 3B | Signed ( 2019)(avoids arbitration) |
| 11/29 | Brian Flynn, P | Signed ( 2019)(avoids arbitration) |
| 11/29 | Jesse Hahn, P | Signed ( 2019)(avoids arbitration) |
| 11/26 | Conner Greene, P | Acquired Off Waivers St. Louis |
| 11/26 | Burch Smith, P | Designated for Assignment |
| 11/20 | Scott Blewett, P | Purchased From Minors |
| 11/20 | Arnaldo Hernandez, P | Purchased From Minors |
| 11/20 | Josh Staumont, P | Purchased From Minors |
| 11/13 | Michael Ynoa, P | Signed to a Minor League Contract |
| 11/2 | Billy Burns, CF | Declared Free Agency |
| 11/2 | Cheslor Cuthbert, 3B | Removed From 60-Day DL (Lower back strain) |
| 11/2 | Jesse Hahn, P | Removed From 60-Day DL (Sprained right UCL) |
| 11/2 | Alex Liddi, 1B | Declared Free Agency |
| 11/2 | Brandon Maurer, P | Declared Free Agency |
| 11/2 | Paulo Orlando, RF | Outrighted to Minors |
| 11/2 | Paulo Orlando, RF | Declared Free Agency |
| 11/2 | Jorge Soler, RF | Removed From 60-Day DL (Fractured left toe) |
| 11/2 | Ramón Torres, 2B | Outrighted to Minors |
| 11/2 | Ramón Torres, 2B | Declared Free Agency |
| 11/2 | Kyle Zimmer, P | Declared Free Agency |
| 10/31 | Nate Karns, P | Removed From 60-Day DL (Right elbow inflammation) |
| 10/31 | Nate Karns, P | Declared Free Agency |
| 10/31 | Nate Karns, P | Outrighted to Minors |
| 10/31 | Wily Peralta, P | Signed ( 2019; Opt 2020)(one-year restructured deal) |
| 10/30 | Jason Hammel, P | Declared Free Agency (mutual option declined) |
| 10/29 | Alcides Escobar, SS | Declared Free Agency |
| 10/2 | Jason Adam, P | Called Up from Minors |
| 10/2 | Scott Barlow, P | Called Up from Minors |
| 10/2 | Kelvin Gutierrez, 3B | Called Up from Minors |
| 10/2 | Andres Machado, P | Called Up from Minors |
| 10/2 | Trevor Oaks, P | Called Up from Minors |
| 10/2 | Paulo Orlando, RF | Called Up from Minors |
| 10/2 | Bubba Starling, CF | Called Up from Minors |
| 10/2 | Ramón Torres, 2B | Called Up from Minors |
Last updated Jul. 16, 1:58 A.M. ET
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