Transactions
| Date | Player | Transactions |
| 8/17 | Roman Quinn, CF | Placed on 10-Day IL (Strained right groin) |
| 8/15 | Jared Hughes, P | Acquired Off Waivers Cincinnati |
| 8/15 | Edubray Ramos, P | Transferred to 60-Day IL (Right biceps tendinitis) |
| 8/14 | Jake Arrieta, P | Placed on 10-Day IL (Right elbow discomfort) |
| 8/14 | Jerad Eickhoff, P | Transferred to 60-Day IL (Right biceps tendinitis) |
| 8/14 | Logan Morrison, 1B | Purchased From Minors |
| 8/12 | Nick Hundley, C | Signed to a Minor League Contract |
| 8/10 | Nick Vincent, P | Signed to a Minor League Contract |
| 8/9 | Jay Bruce, RF | Placed on 10-Day IL (Left flexor strain) |
| 8/9 | Adam Haseley, CF | Called Up from Minors |
| 8/8 | Jay Bruce, RF | Removed From 10-Day IL (Strained right oblique) |
| 8/8 | Adam Haseley, CF | Sent to Minors |
| 8/4 | Maikel Franco, 3B | Sent to Minors |
| 8/4 | Brad Miller, 2B | Removed From 10-Day IL (Right hip tightness) |
| 8/4 | Héctor Neris, P | Reinstated From League Suspension |
| 8/3 | Dylan Cozens, RF | Cleared Waivers and Became a Free Agent |
| 8/3 | Mitch Walding, 3B | Outrighted to Minors |
| 8/2 | Adam Morgan, P | Placed on 10-Day IL (Left flexor strain) |
| 8/1 | Dylan Cozens, RF | Released |
| 8/1 | Héctor Neris, P | Starting to Serve Suspension |
| 8/1 | Nick Williams, RF | Sent to Minors |
| 7/31 | Dylan Cozens, RF | Designated for Assignment |
| 7/31 | Corey Dickerson, LF | Traded Pittsburgh (for future considerations) |
| 7/31 | Dan Straily, P | Traded Baltimore (for cash considerations) |
| 7/30 | Jerad Eickhoff, P | Sent to Minors For Rehabilitation |
| 7/30 | Édgar García, P | Sent to Minors |
| 7/30 | Blake Parker, P | Signed as Free Agent ( 2019)(one-year contract) |
| 7/30 | Mitch Walding, 3B | Designated for Assignment |
| 7/29 | Yacksel Ríos, P | Designated for Assignment |
| 7/29 | Jason Vargas, P | Traded NY Mets (with cash for C Austin Bossart) |
| 7/28 | Édgar García, P | Called Up from Minors |
| 7/28 | Cole Irvin, P | Sent to Minors |
| 7/27 | Tommy Hunter, P | Transferred to 60-Day IL (Right forearm surgery - out for season) |
| 7/27 | José Pirela, 2B | Traded San Diego (for cash considerations) |
| 7/27 | José Pirela, 2B | Sent to Minors |
| 7/24 | Brad Miller, 2B | Placed on 10-Day IL (Right hip tightness) |
| 7/24 | Sean Rodríguez, 2B | Removed From 10-Day IL (Right abdominal strain) |
| 7/23 | Fernando Salas, P | Outrighted to Minors |
| 7/21 | Fernando Salas, P | Designated for Assignment |
| 7/21 | Drew Smyly, P | Signed as Free Agent ( 2019)(one-year contract) |
| 7/20 | JD Hammer, P | Sent to Minors |
| 7/19 | Seranthony Domínguez, P | Transferred to 60-Day IL (Slight tear, right UCL) |
| 7/19 | Mike Morin, P | Traded Minnesota (for cash considerations) |
| 7/18 | Austin Davis, P | Sent to Minors |
| 7/18 | Édgar García, P | Sent to Minors |
| 7/18 | Cole Irvin, P | Called Up from Minors |
| 7/18 | Fernando Salas, P | Purchased From Minors |
| 7/17 | Jay Bruce, RF | Placed on 10-Day IL (Strained right oblique) |
| 7/17 | Héctor Neris, P | Suspension Announced By League (three games) |
| 7/17 | Nick Williams, RF | Called Up from Minors |
| 7/16 | Austin Davis, P | Called Up from Minors |
| 7/16 | Juan Nicasio, P | Removed From 10-Day IL (Strained left groin) |
| 7/16 | Edubray Ramos, P | Placed on 10-Day IL (Right biceps tendinitis) |
| 7/16 | Yacksel Ríos, P | Sent to Minors |
| 7/15 | Rob Brantly, C | Outrighted to Minors |
| 7/14 | Tommy Hunter, P | Placed on 10-Day IL (Right forearm surgery - out for season) |
| 7/14 | Edubray Ramos, P | Called Up from Minors |
| 7/13 | Rob Brantly, C | Designated for Assignment |
| 7/13 | Adam Haseley, CF | Called Up from Minors |
| 7/13 | Logan Morrison, 1B | Signed to a Minor League Contract |
| 7/13 | J.T. Realmuto, C | Reinstated from Paternity Leave List |
| 7/13 | Sean Rodríguez, 2B | Placed on 10-Day IL (Right abdominal strain) |
| 7/12 | Rob Brantly, C | Purchased From Minors |
| 7/12 | Pat Neshek, P | Transferred to 60-Day IL (Strained left hamstring) |
| 7/12 | J.T. Realmuto, C | Placed on Paternity Leave List |
| 7/7 | John Curtiss, P | Released |
| 7/5 | Austin Davis, P | Sent to Minors |
| 7/5 | Odúbel Herrera, CF | Suspension Announced By League (85 games per domestic abuse policy) |
| 7/5 | Odúbel Herrera, CF | Starting to Serve Suspension |
| 7/5 | Yacksel Ríos, P | Called Up from Minors |
| 7/4 | Austin Davis, P | Called Up from Minors |
| 7/4 | Juan Nicasio, P | Placed on 10-Day IL (Strained left groin) |
| 6/30 | Fernando Salas, P | Outrighted to Minors |
| 6/28 | Tommy Hunter, P | Removed From 60-Day IL (Strained right forearm) |
| 6/28 | Fernando Salas, P | Designated for Assignment |
| 6/27 | Adam Haseley, CF | Recalled From Minors Rehab Assignment |
| 6/27 | Adam Haseley, CF | Removed From 10-Day IL (Strained left groin) |
| 6/27 | Adam Haseley, CF | Sent to Minors |
| 6/27 | Tommy Hunter, P | Recalled From Minors Rehab Assignment |
| 6/24 | Enyel De Los Santos, P | Sent to Minors |
| 6/24 | Adam Haseley, CF | Sent to Minors For Rehabilitation |
| 6/24 | Andrew McCutchen, CF | Transferred to 60-Day IL (Torn ACL, left knee - out for season) |
| 6/24 | Fernando Salas, P | Purchased From Minors |
| 6/23 | Enyel De Los Santos, P | Called Up from Minors |
| 6/23 | Edubray Ramos, P | Sent to Minors |
| 6/21 | Cole Irvin, P | Sent to Minors |
| 6/21 | Adam Morgan, P | Recalled From Minors Rehab Assignment |
| 6/21 | Adam Morgan, P | Removed From 10-Day IL (Strained left forearm) |
| 6/20 | Pat Neshek, P | Placed on 10-Day IL (Strained left hamstring) |
| 6/20 | Gift Ngoepe, 2B | Released |
| 6/20 | Ranger Suárez, P | Called Up from Minors |
| 6/19 | Adam Morgan, P | Sent to Minors For Rehabilitation |
| 6/19 | Ranger Suárez, P | Called Up from Minors (recalled as 26th roster player) |
| 6/19 | Ranger Suárez, P | Return of 26th man |
| 6/17 | Jerad Eickhoff, P | Placed on 10-Day IL (Right biceps tendinitis) |
| 6/17 | Édgar García, P | Called Up from Minors |
| 6/17 | Tommy Hunter, P | Sent to Minors For Rehabilitation |
| 6/17 | Roman Quinn, CF | Recalled From Minors Rehab Assignment |
| 6/17 | Roman Quinn, CF | Removed From 10-Day IL (Right groin strain) |
| 6/17 | Nick Williams, RF | Sent to Minors |
| 6/16 | Édgar García, P | Sent to Minors |
| 6/16 | Phil Gosselin, 2B | Outrighted to Minors |
| 6/16 | Cole Irvin, P | Called Up from Minors |
| 6/16 | Pat Neshek, P | Removed From 10-Day IL (Sore right shoulder) |
| 6/16 | Ranger Suárez, P | Sent to Minors |
| 6/14 | Phil Gosselin, 2B | Designated for Assignment |
| 6/14 | Brad Miller, 2B | Purchased From Minors |
| 6/13 | Brad Miller, 2B | Traded NY Yankees (for cash considerations) |
| 6/12 | John Curtiss, P | Signed to a Minor League Contract |
| 6/12 | Austin Davis, P | Sent to Minors |
| 6/12 | Edubray Ramos, P | Recalled From Minors Rehab Assignment |
| 6/12 | Edubray Ramos, P | Removed From 10-Day IL (Right shoulder stiffness) |
| 6/10 | Roman Quinn, CF | Sent to Minors For Rehabilitation |
| 6/10 | Edubray Ramos, P | Sent to Minors For Rehabilitation |
| 6/8 | Adam Haseley, CF | Placed on 10-Day IL (Strained left groin) |
| 6/8 | Nick Williams, RF | Called Up from Minors |
| 6/7 | Seranthony Domínguez, P | Placed on 10-Day IL (Slight tear, right UCL) |
| 6/7 | Zach Eflin, P | Removed From 10-Day IL (Mid-back tightness) |
| 6/7 | Fernando Salas, P | Signed to a Minor League Contract |
| 6/7 | Ranger Suárez, P | Called Up from Minors |
| 6/6 | Yacksel Ríos, P | Sent to Minors |
| 6/4 | Víctor Arano, P | Transferred to 60-Day IL (Right elbow inflammation) |
| 6/4 | Adam Haseley, CF | Purchased From Minors |
| 6/4 | Andrew McCutchen, CF | Placed on 10-Day IL (Torn ACL, left knee - out for season) |
| 6/3 | Austin Davis, P | Called Up from Minors |
| 6/3 | Cole Irvin, P | Sent to Minors |
| 6/3 | Nick Williams, RF | Sent to Minors |
| 6/2 | Jay Bruce, RF | Traded Seattle (with cash for 3B Jake Scheiner) |
| 5/31 | Zach Eflin, P | Placed on 10-Day IL (Mid-back tightness) |
| 5/31 | Cole Irvin, P | Called Up from Minors |
| 5/29 | Adam Morgan, P | Placed on 10-Day IL (Strained left forearm) |
| 5/29 | Yacksel Ríos, P | Called Up from Minors |
| 5/28 | Odúbel Herrera, CF | Placed on Restricted List |
| 5/28 | Nick Pivetta, P | Called Up from Minors |
| 5/28 | Nick Williams, RF | Called Up from Minors |
| 5/27 | Enyel De Los Santos, P | Sent to Minors |
| 5/25 | JD Hammer, P | Purchased From Minors |
| 5/25 | Pat Neshek, P | Placed on 10-Day IL (Sore right shoulder) |
| 5/25 | David Robertson, P | Transferred to 60-Day IL (Right elbow surgery - out for season) |
| 5/24 | Drew Anderson, P | Sent to Minors |
| 5/24 | Vince Velasquez, P | Removed From 10-Day IL (Strained right forearm) |
| 5/23 | Drew Anderson, P | Called Up from Minors |
| 5/23 | Cole Irvin, P | Sent to Minors |
| 5/19 | Scott Kingery, SS | Recalled From Minors Rehab Assignment |
| 5/19 | Scott Kingery, SS | Removed From 10-Day IL (Strained right hamstring) |
| 5/19 | Nick Williams, RF | Sent to Minors |
| 5/17 | Austin Davis, P | Sent to Minors |
| 5/17 | Enyel De Los Santos, P | Called Up from Minors |
| 5/13 | Austin Davis, P | Called Up from Minors |
| 5/13 | Scott Kingery, SS | Sent to Minors For Rehabilitation |
| 5/13 | Edubray Ramos, P | Placed on 10-Day IL (Right shoulder stiffness) |
| 5/12 | Cole Irvin, P | Purchased From Minors |
| 5/11 | Austin Davis, P | Called Up from Minors |
| 5/11 | Austin Davis, P | Sent to Minors |
| 5/11 | Vince Velasquez, P | Placed on 10-Day IL (Strained right forearm) |
| 5/6 | Édgar García, P | Called Up from Minors |
| 5/5 | Enyel De Los Santos, P | Sent to Minors |
| 5/4 | Aaron Altherr, RF | Designated for Assignment |
| 5/4 | Odúbel Herrera, CF | Removed From 10-Day IL (Right hamstring strain) |
| 4/27 | Dylan Cozens, RF | Sent to Minors |
| 4/27 | Jean Segura, SS | Removed From 10-Day IL (Strained left hamstring) |
| 4/25 | Dylan Cozens, RF | Called Up from Minors |
| 4/25 | Roman Quinn, CF | Placed on 10-Day IL (Right groin strain) |
| 4/24 | Drew Anderson, P | Sent to Minors |
| 4/24 | Enyel De Los Santos, P | Called Up from Minors |
| 4/24 | James Pazos, P | Designated for Assignment |
| 4/24 | Sean Rodríguez, 2B | Purchased From Minors |
| 4/24 | Mitch Walding, 3B | Sent to Minors |
| 4/22 | Austin Davis, P | Sent to Minors |
| 4/22 | Edubray Ramos, P | Called Up from Minors |
| 4/20 | Drew Anderson, P | Called Up from Minors |
| 4/20 | Víctor Arano, P | Placed on 10-Day IL (Right elbow inflammation) |
| 4/20 | Austin Davis, P | Called Up from Minors |
| 4/20 | Scott Kingery, SS | Placed on 10-Day IL (Strained right hamstring) |
| 4/20 | Jean Segura, SS | Placed on 10-Day IL (Strained left hamstring) |
| 4/20 | Mitch Walding, 3B | Called Up from Minors |
| 4/18 | Odúbel Herrera, CF | Placed on 10-Day IL (Right hamstring strain) |
| 4/18 | Roman Quinn, CF | Recalled From Minors Rehab Assignment |
| 4/18 | Roman Quinn, CF | Removed From 10-Day IL (Right oblique strain) |
| 4/17 | Phil Gosselin, 2B | Purchased From Minors |
| 4/17 | Tommy Hunter, P | Transferred to 60-Day IL (Strained right forearm) |
| 4/17 | Nick Pivetta, P | Sent to Minors |
| 4/16 | Drew Anderson, P | Sent to Minors |
| 4/16 | Jerad Eickhoff, P | Called Up from Minors |
| 4/15 | Drew Anderson, P | Called Up from Minors |
| 4/15 | David Robertson, P | Placed on 10-Day IL (Right elbow surgery - out for season) |
| 4/12 | Víctor Arano, P | Called Up from Minors |
| 4/11 | Edubray Ramos, P | Sent to Minors |
| 4/4 | Roman Quinn, CF | Sent to Minors For Rehabilitation |
| 3/28 | Tommy Hunter, P | Placed on 10-Day IL (Strained right forearm) |
| 3/28 | Roman Quinn, CF | Placed on 10-Day IL (Right oblique strain) |
| 3/23 | Víctor Arano, P | Sent to Minors |
| 3/23 | Jerad Eickhoff, P | Sent to Minors |
| 3/23 | Yacksel Ríos, P | Sent to Minors |
| 3/21 | Drew Anderson, P | Sent to Minors |
| 3/21 | Jeremy Bleich, P | Released |
| 3/21 | Drew Butera, C | Released |
| 3/21 | Dylan Cozens, RF | Sent to Minors |
| 3/21 | Edward Paredes, P | Released |
| 3/21 | James Pazos, P | Sent to Minors |
| 3/21 | Gregorio Petit, SS | Released |
| 3/21 | Trevor Plouffe, 3B | Released |
| 3/15 | Mitch Walding, 3B | Sent to Minors |
| 3/11 | Austin Davis, P | Sent to Minors |
| 3/11 | Enyel De Los Santos, P | Sent to Minors |
| 3/11 | Édgar García, P | Sent to Minors |
| 3/11 | Ranger Suárez, P | Sent to Minors |
| 3/10 | Pedro Beato, P | Signed to a Minor League Contract |
| 3/9 | Arquímedes Gamboa, SS | Sent to Minors |
| 3/9 | Adonis Medina, P | Sent to Minors |
| 3/2 | Bryce Harper, RF | Signed as Free Agent ( 2019-2031)(thirteen-year contract) |
| 2/20 | Trevor Plouffe, 3B | Signed to a Minor League Contract |
| 2/13 | Aaron Nola, P | Signed ( 2019-2022; Opt 2023)(four-year contract, avoids arbitration) |
| 2/8 | Sean Rodríguez, 2B | Signed to a Minor League Contract |
| 2/7 | J.T. Realmuto, C | Traded Miami (for C Jorge Alfaro, four-player deal) |
| 2/5 | Drew Butera, C | Signed to a Minor League Contract |
| 1/14 | Lane Adams, LF | Signed to a Minor League Contract |
| 1/11 | Aaron Altherr, RF | Signed ( 2019)(avoids arbitration) |
| 1/11 | José Álvarez, P | Signed ( 2019)(avoids arbitration) |
| 1/11 | Maikel Franco, 3B | Signed ( 2019)(avoids arbitration) |
| 1/11 | César Hernández, 2B | Signed ( 2019)(avoids arbitration) |
| 1/11 | Will Middlebrooks, 3B | Retired |
| 1/11 | Adam Morgan, P | Signed ( 2019)(avoids arbitration) |
| 1/11 | Gift Ngoepe, 2B | Signed to a Minor League Contract |
| 1/11 | Edward Paredes, P | Signed to a Minor League Contract |
| 1/11 | Andrew Romine, 2B | Signed to a Minor League Contract |
| 1/11 | Vince Velasquez, P | Signed ( 2019)(avoids arbitration) |
| 1/10 | Jerad Eickhoff, P | Signed ( 2019)(avoids arbitration) |
| 1/10 | Héctor Neris, P | Signed ( 2019)(avoids arbitration) |
| 1/3 | David Robertson, P | Signed as Free Agent ( 2019-2020; Opt 2021)(two-year contract) |
| 12/21 | Jeremy Bleich, P | Signed to a Minor League Contract |
| 12/21 | Rob Brantly, C | Signed to a Minor League Contract |
| 12/21 | Matt McBride, C | Signed to a Minor League Contract |
| 12/21 | Gregorio Petit, SS | Signed to a Minor League Contract |
| 12/21 | Shane Robinson, RF | Signed to a Minor League Contract |
| 12/17 | Phil Gosselin, 2B | Signed to a Minor League Contract |
| 12/13 | Drew Jackson, SS | Drafted Via Rule 5 |
| 12/12 | Andrew McCutchen, CF | Signed as Free Agent ( 2019-2021; Opt 2022)(three-year contract) |
| 12/6 | José Álvarez, P | Traded Los Angeles (for RHP Luis Garcia) |
| 12/3 | Juan Nicasio, P | Traded Seattle (for 1B Carlos Santana, five-player deal) |
| 12/3 | James Pazos, P | Traded Seattle (for 1B Carlos Santana, five-player deal) |
| 12/3 | Jean Segura, SS | Traded Seattle (for 1B Carlos Santana, five-player deal) |
| 11/30 | Luis Avilán, P | Free Agent - No Contract Offer (non-tendered) |
| 11/30 | Justin Bour, 1B | Free Agent - No Contract Offer (non-tendered) |
| 11/20 | Arquímedes Gamboa, SS | Purchased From Minors |
| 11/20 | Édgar García, P | Purchased From Minors |
| 11/20 | Adonis Medina, P | Purchased From Minors |
| 11/2 | Pedro Beato, P | Declared Free Agency |
| 11/2 | Collin Cowgill, RF | Declared Free Agency |
| 11/2 | Pedro Florimón, SS | Outrighted to Minors |
| 11/2 | Pedro Florimón, SS | Refused Minor League Assignment - Free Agent |
| 11/2 | Ryan Goins, 2B | Declared Free Agency |
| 11/2 | Matt McBride, C | Declared Free Agency |
| 11/2 | Will Middlebrooks, 3B | Declared Free Agency |
| 11/2 | Danny Ortiz, RF | Declared Free Agency |
| 11/2 | Jesmuel Valentín, 3B | Declared Free Agency |
| 10/29 | José Bautista, RF | Declared Free Agency |
| 10/29 | Asdrúbal Cabrera, SS | Declared Free Agency |
| 10/29 | Aaron Loup, P | Declared Free Agency |
| 10/29 | Wilson Ramos, C | Declared Free Agency |
| 10/4 | Trevor Plouffe, 3B | Declared Free Agency |
Last updated Aug. 21, 12:12 A.M. ET
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