Transactions
| Date | Player | Transactions |
| 4/24 | Jeff Hoffman, P | Sent to Minors |
| 4/24 | Daniel Murphy, 2B | Recalled From Minors Rehab Assignment |
| 4/24 | Daniel Murphy, 2B | Removed From 10-Day IL (Fractured left index finger) |
| 4/23 | Jeff Hoffman, P | Called Up from Minors |
| 4/23 | Pat Valaika, 2B | Sent to Minors |
| 4/22 | Tyler Anderson, P | Removed From 10-Day IL (Left knee inflammation) |
| 4/22 | Kyle Freeland, P | Placed on 10-Day IL (Blister, left middle finger) |
| 4/20 | Daniel Murphy, 2B | Sent to Minors For Rehabilitation |
| 4/18 | David Dahl, LF | Removed From 10-Day IL (Abdominal strain) |
| 4/18 | Yonathan Daza, CF | Sent to Minors |
| 4/18 | Josh Fuentes, 1B | Sent to Minors |
| 4/18 | Ryan McMahon, 1B | Removed From 10-Day IL (Sprained left elbow) |
| 4/16 | Noel Cuevas, LF | Placed on 10-Day IL (Strained left quad) |
| 4/16 | Yonathan Daza, CF | Called Up from Minors |
| 4/15 | Yency Almonte, P | Sent to Minors |
| 4/15 | Drew Butera, C | Purchased From Minors |
| 4/15 | Noel Cuevas, LF | Called Up from Minors |
| 4/15 | Yonathan Daza, CF | Sent to Minors |
| 4/15 | Chris Iannetta, C | Placed on 10-Day IL (Right lat strain) |
| 4/15 | Antonio Senzatela, P | Recalled From Minors Rehab Assignment |
| 4/15 | Antonio Senzatela, P | Removed From 10-Day IL (Infected blister, right heel) |
| 4/9 | David Dahl, LF | Placed on 10-Day IL (Abdominal strain) |
| 4/9 | Yonathan Daza, CF | Called Up from Minors |
| 4/9 | Craig Gentry, LF | Signed to a Minor League Contract |
| 4/7 | Yency Almonte, P | Called Up from Minors |
| 4/7 | Tyler Anderson, P | Placed on 10-Day IL (Left knee inflammation) |
| 4/6 | Josh Fuentes, 1B | Called Up from Minors |
| 4/6 | German Márquez, P | Signed ( 2019-2023; Opt 2024)(five-year extension) |
| 4/6 | Ryan McMahon, 1B | Placed on 10-Day IL (Sprained left elbow) |
| 4/6 | Antonio Senzatela, P | Sent to Minors For Rehabilitation |
| 4/5 | Jorge De La Rosa, P | Signed to a Minor League Contract |
| 4/2 | Carlos Estévez, P | Called Up from Minors |
| 4/2 | Jake McGee, P | Placed on 10-Day IL (Sprained left knee) |
| 4/1 | Daniel Murphy, 2B | Placed on 10-Day IL (Fractured left index finger) |
| 4/1 | Pat Valaika, 2B | Called Up from Minors |
| 3/28 | Chris Rusin, P | Placed on 10-Day IL (Mid-back strain) |
| 3/28 | Antonio Senzatela, P | Placed on 10-Day IL (Infected blister, right heel) |
| 3/26 | Mark Reynolds, 1B | Purchased From Minors |
| 3/25 | Drew Butera, C | Signed to a Minor League Contract |
| 3/24 | Jeff Hoffman, P | Sent to Minors |
| 3/23 | Carlos Estévez, P | Sent to Minors |
| 3/22 | Pat Valaika, 2B | Sent to Minors |
| 3/18 | Noel Cuevas, LF | Sent to Minors |
| 3/17 | Michael Saunders, RF | Released |
| 3/14 | Yency Almonte, P | Sent to Minors |
| 3/11 | Ryan Castellani, P | Sent to Minors |
| 3/11 | Yonathan Daza, CF | Sent to Minors |
| 3/11 | Josh Fuentes, 1B | Sent to Minors |
| 3/11 | Sam Hilliard, RF | Sent to Minors |
| 3/11 | Justin Lawrence, P | Sent to Minors |
| 3/11 | Jesus Tinoco, P | Sent to Minors |
| 2/26 | Nolan Arenado, 3B | Signed ( 2019-2026)(eight-year extension) |
| 2/6 | Alec Asher, P | Signed to a Minor League Contract |
| 1/31 | Nolan Arenado, 3B | Signed ( 2019)(avoids arbitration) |
| 1/30 | Mark Reynolds, 1B | Signed to a Minor League Contract |
| 1/13 | Sam Howard, P | Signed to a Minor League Contract |
| 1/11 | Tyler Anderson, P | Signed ( 2019)(avoids arbitration) |
| 1/11 | Chad Bettis, P | Signed ( 2019)(avoids arbitration) |
| 1/11 | Jon Gray, P | Signed ( 2019)(avoids arbitration) |
| 1/11 | Trevor Story, SS | Signed ( 2019)(avoids arbitration) |
| 1/11 | Tony Wolters, C | Signed ( 2019)(avoids arbitration) |
| 1/10 | Scott Oberg, P | Signed ( 2019)(avoids arbitration) |
| 1/2 | Jairo Díaz, P | Signed to a Minor League Contract |
| 1/1 | Michael Saunders, RF | Signed to a Minor League Contract |
| 12/21 | Daniel Murphy, 2B | Signed as Free Agent ( 2019-2020; Opt 2021)(two-year contract) |
| 12/4 | Chi Chi González, P | Signed to a Minor League Contract |
| 11/30 | Sam Howard, P | Free Agent - No Contract Offer (non-tendered) |
| 11/29 | Brandon Brennan, P | Signed to a Minor League Contract |
| 11/29 | Chris Rusin, P | Signed ( 2019)(avoids arbitration) |
| 11/20 | Ryan Castellani, P | Purchased From Minors |
| 11/20 | Josh Fuentes, 1B | Purchased From Minors |
| 11/20 | Sam Hilliard, RF | Purchased From Minors |
| 11/20 | Justin Lawrence, P | Purchased From Minors |
| 11/20 | Jordan Patterson, RF | Designated for Assignment |
| 11/11 | Brett Nicholas, C | Signed to a Minor League Contract |
| 11/2 | Stephen Cardullo, LF | Declared Free Agency |
| 11/2 | Santiago Casilla, P | Declared Free Agency |
| 11/2 | Yonathan Daza, CF | Removed From 60-Day DL (Strained left shoulder) |
| 11/2 | Jairo Díaz, P | Declared Free Agency |
| 11/2 | Mike Dunn, P | Removed From 60-Day DL (Left shoulder surgery - out for season) |
| 11/2 | Keith Hessler, P | Declared Free Agency |
| 11/2 | David Holmberg, P | Declared Free Agency |
| 11/2 | Scott McGough, P | Declared Free Agency |
| 11/2 | Sean Nolin, P | Declared Free Agency |
| 11/2 | Shawn O'Malley, SS | Declared Free Agency |
| 11/2 | Brett Oberholtzer, P | Declared Free Agency |
| 10/29 | Drew Butera, C | Declared Free Agency |
| 10/29 | Carlos González, RF | Declared Free Agency |
| 10/29 | Matt Holliday, LF | Declared Free Agency |
| 10/29 | DJ LeMahieu, 2B | Declared Free Agency |
| 10/29 | Adam Ottavino, P | Declared Free Agency |
| 10/29 | Gerardo Parra, LF | Declared Free Agency (team option declined) |
| 10/12 | Daniel Castro, 2B | Refused Minor League Assignment - Free Agent |
| 10/9 | Brooks Pounders, P | Refused Minor League Assignment - Free Agent |
| 10/2 | Carlos Estévez, P | Called Up from Minors |
| 10/2 | Jeff Hoffman, P | Called Up from Minors |
| 10/2 | Jordan Patterson, RF | Called Up from Minors |
| 10/2 | Mike Tauchman, CF | Called Up from Minors |
| 10/2 | Jesus Tinoco, P | Called Up from Minors |
Last updated Apr. 25, 2:00 A.M. ET
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