| | CF | Placed on 10-Day IL (Undisclosed injury) |
| | P | Placed on 10-Day IL (Strained right forearm) |
| | C | Called Up from Minors (Signed) |
| | P | Called Up from Minors (Signed) |
| | C | Outrighted to Minors (Signed) |
| | C | Removed From 10-Day IL (COVID-19 injured list) |
| | C | Designated for Assignment (Signed) |
| | P | Removed From 10-Day IL (Stretching out, prep for 2020 season) |
| | P | Sent to Minors (Signed) |
| | P | Purchased From Minors (Signed) |
| | P | Placed on Bereavement/Family Medical Emergency List (Signed) |
| | P | Transferred to 60-Day IL (Strained left forearm) |
| | P | Reinstated from Bereavement/Family Medical Emergency List (Signed) |
| | P | Placed on Restricted List (Signed) |
| | P | Placed on 10-Day IL (Lat strain) |
| | SP | Signed to a Minor League Contract (Signed) |
| | P | Placed on 10-Day IL (Strained left forearm) |
| | CF | Called Up from Minors (Signed) |
| | P | Called Up from Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | 1B | Removed From 10-Day IL (COVID-19 injured list) |
| | P | Purchased From Minors (Signed) |
| | C | Sent to Minors (Signed) |
| | P | Called Up from Minors (Signed) |
| | CF | Called Up from Minors (Signed) |
| | P | Called Up from Minors (Signed) |
| | C | Called Up from Minors (Signed) |
| | P | Placed on Bereavement/Family Medical Emergency List (Signed) |
| | C | Purchased From Minors (Signed) |
| | P | Placed on 10-Day IL (Left arm tightness) |
| | P | Purchased From Minors (Signed) |
| | P | Placed on 10-Day IL (Undisclosed injury) |
| | P | Purchased From Minors (Signed) |
| | SS | Purchased From Minors (Signed) |
| | P | Called Up from Minors (Signed) |
| | P | Called Up from Minors (Signed) |
| | 3B | Placed on 10-Day IL (COVID-19 injured list) |
| | P | Outrighted to Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | P | Placed on 10-Day IL (Stretching out, prep for 2020 season) |
| | CF | Sent to Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | 3B | Called Up from Minors (Signed) |
| | P | Traded (with OF Franchy Cordero for LHP Tim Hill) From |
| | CF | Traded (w/RHP Ronald Bolanos for LHP Tim Hill) From |
| | P | Traded (for OF Franchy Cordero, P Ronald Bolanos) To |
| | C | Removed From 10-Day IL (COVID-19 injured list) |
| | C | Removed From 10-Day IL (COVID-19 injured list) |
| | C | Placed on 10-Day IL (COVID-19 injured list) |
| | P | Placed on 10-Day IL (COVID-19 injured list) |
| | 1B | Placed on 10-Day IL (COVID-19 injured list) |
| | C | Signed to a Minor League Contract (Signed) |
| | C | Placed on 10-Day IL (COVID-19 injured list) |
| | P | Outrighted to Minors (Signed) |
| | P | Designated for Assignment (Signed) |
| | P | Purchased From Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | 3B | Sent to Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | SS | Sent to Minors (Signed) |
| | C | Sent to Minors (Signed) |
| | CF | Sent to Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | P | Sent to Minors (Signed) |
| | SP | Sent to Minors (Signed) |
| | P | Outrighted to Minors (Signed) |
| | P | Signed to a Minor League Contract (Signed) |
| | P | Designated for Assignment (Signed) |
| | LF | Signed as Free Agent (one-year contract) |
| | RF | Signed (avoids arbitration) |
| | 3B | Signed as Free Agent (one-year contract) |
| | P | Traded (for SS Cristian Perez) From |
| | SP | Signed to a Minor League Contract (Signed) |
| | SS | Signed to a Minor League Contract (Signed) |
| | SS | Signed to a Minor League Contract (Signed) |
| | P | Signed as Free Agent (one-year contract) |
| | P | Drafted Via Rule 5 (Signed) |
| | P | Signed to a Minor League Contract (Signed) |
| | P | Free Agent - No Contract Offer (non-tendered) |
| | SS | Free Agent - No Contract Offer (non-tendered) |
| | 3B | Free Agent - No Contract Offer (non-tendered) |
| | SS | Free Agent - No Contract Offer (non-tendered) |
| | P | Signed (avoids arbitration) |
| | SP | Outrighted to Minors (Signed) |
| | SP | Outrighted to Minors (Signed) |
| | RF | Cleared Waivers and Became a Free Agent (Signed) |
| | C | Outrighted to Minors (Signed) |
| | RF | Released (Signed) |
| | SS | Purchased From Minors (Signed) |
| | SP | Purchased From Minors (Signed) |
| | P | Purchased From Minors (Signed) |
| | RF | Designated for Assignment (Signed) |
| | C | Designated for Assignment (Signed) |
| | SP | Designated for Assignment (Signed) |
| | SP | Designated for Assignment (Signed) |
| | CF | Purchased From Minors (Signed) |
| | 2B | Signed to a Minor League Contract (Signed) |
| | P | Cleared Waivers and Became a Free Agent (Signed) |
| | P | Released (Signed) |
| | P | Acquired Off Waivers (Signed) To |
| | C | Declared Free Agency (Signed) |
| | P | Designated for Assignment (Signed) |
| | SS | Declared Free Agency (Signed) |
| | SP | Declared Free Agency (Signed) |
| | RF | Declared Free Agency (Signed) |
| | 2B | Declared Free Agency (Signed) |
| | LF | Declared Free Agency (team declined mutual option) |
