| Last updated: Thu, May 23, 2013, 02:44 EDT |
| Date | Player | Pos. | Transaction |
| 5/20 | Johnny Cueto | P | Removed From 15-Day DL, (Strained right lat) |
| 5/20 | Johnny Cueto | P | Recalled From Minors, Rehab Assignment |
| 5/20 | Neftali Soto | 1B | Sent to Minors |
| 5/18 | Neftali Soto | 1B | Called Up from Minors |
| 5/18 | Tony Cingrani | P | Sent to Minors |
| 5/14 | Chris Heisey | LF | Recalled From Minors, Rehab Assignment |
| 5/14 | Luis Durango | CF | Signed to a Minor League Contract |
| 5/13 | Manny Parra | P | Sent to Minors, For Rehabilitation |
| 5/13 | Chris Heisey | LF | Sent to Minors, For Rehabilitation |
| 5/12 | Corky Miller | C | Outrighted to Minors |
| 5/10 | Ryan Hanigan | C | Removed From 15-Day DL, (Strained left oblique) |
| 5/10 | Ryan Hanigan | C | Recalled From Minors, Rehab Assignment |
| 5/10 | Corky Miller | C | Designated for Assignment |
| 5/9 | Johnny Cueto | P | Sent to Minors, For Rehabilitation |
| 5/7 | Ryan Hanigan | C | Sent to Minors, For Rehabilitation |
| 5/4 | Joe Mather | 3B | Signed to a Minor League Contract |
| 4/29 | Donald Lutz | LF | Called Up from Minors |
| 4/29 | Chris Heisey | LF | Placed on 15-Day DL, (Strained right hamstring) |
| 4/26 | Sean Marshall | P | Recalled From Minors, Rehab Assignment |
| 4/26 | Manny Parra | P | Placed on 15-Day DL, (Strained left pectoral muscle) |
| 4/26 | Sean Marshall | P | Removed From 15-Day DL, (Left shoulder tendinitis) |
| 4/22 | Sean Marshall | P | Sent to Minors, For Rehabilitation |
| 4/21 | Ryan Hanigan | C | Placed on 15-Day DL, (Strained left oblique) |
| 4/21 | Nick Masset | P | Transferred to 60-Day DL, (Recovery from right shoulder surgery) |
| 4/21 | Corky Miller | C | Purchased From Minors |
| 4/18 | Tony Cingrani | P | Called Up from Minors |
| 4/18 | Justin Freeman | P | Sent to Minors |
| 4/16 | Mike MacDougal | P | Signed to a Minor League Contract |
| 4/15 | Justin Freeman | P | Purchased From Minors |
| 4/15 | Johnny Cueto | P | Placed on 15-Day DL, (Strained right lat) |
| 4/15 | Ryan Ludwick | LF | Transferred to 60-Day DL, (Torn cartilage in right shoulder) |
| 4/10 | Logan Ondrusek | P | Called Up from Minors |
| 4/10 | Sean Marshall | P | Placed on 15-Day DL, (Left shoulder tendinitis) |
| 4/4 | Jason Donald | SS | Outrighted to Minors |
| 4/3 | Ryan Ludwick | LF | Placed on 15-Day DL, (Torn cartilage in right shoulder) |
| 4/3 | Derrick Robinson | LF | Purchased From Minors |
| 3/31 | Jose Arredondo | P | Outrighted to Minors |
| 3/31 | Nick Masset | P | Placed on 15-Day DL, (Recovery from right shoulder surgery) |
| 3/31 | Logan Ondrusek | P | Sent to Minors |
| 3/30 | Jason Donald | SS | Designated for Assignment |
| 3/30 | Cesar Izturis | SS | Purchased From Minors |
| 3/28 | Miguel Olivo | C | Released |
| 3/21 | Edgar Renteria | SS | Retired |
| 3/15 | Henry Rodriguez | 2B | Sent to Minors |
| 3/15 | Pedro Villarreal | P | Sent to Minors |
| 3/12 | Tony Cingrani | P | Sent to Minors |
| 3/1 | Mark Prior | P | Signed to a Minor League Contract |
| 2/16 | Homer Bailey | P | Signed, ( 2013)(avoids arbitration) |
| 2/14 | Miguel Cairo | 3B | Retired |
| 2/12 | Mat Latos | P | Signed, ( 2013-2014)(two-year contract, avoids arbitration) |
| 2/11 | Shin-Soo Choo | RF | Signed, ( 2013)(avoids arbitration) |
| 2/11 | Clay Hensley | P | Signed to a Minor League Contract |
| 2/6 | Mike Leake | P | Signed, ( 2013)(avoids arbitration) |
| 2/2 | Matt Mangini | 3B | Signed to a Minor League Contract |
| 2/1 | Manny Parra | P | Signed as Free Agent, ( 2013)(one-year contract) |
| 2/1 | Todd Redmond | P | Designated for Assignment |
| 2/1 | Miguel Olivo | C | Signed to a Minor League Contract |
| 2/1 | Greg Reynolds | P | Signed to a Minor League Contract |
| 1/31 | Chris Heisey | LF | Signed, ( 2013)(avoids arbitration) |
| 1/31 | Alfredo Simon | P | Signed, ( 2013)(avoids arbitration) |
| 1/27 | Ron Mahay | P | Retired |
| 1/22 | Armando Galarraga | P | Signed to a Minor League Contract |
| 1/17 | Logan Ondrusek | P | Signed, ( 2013-2014)(two-year contract, avoids arbitration) |
| 1/14 | Cesar Izturis | SS | Signed to a Minor League Contract |
| 1/2 | Jeff Marquez | P | Signed to a Minor League Contract |
| 1/2 | Kevin Whelan | P | Signed to a Minor League Contract |
| 12/20 | Corky Miller | C | Signed to a Minor League Contract |
| 12/17 | Ryan Ludwick | LF | Signed as Free Agent, ( 2013-2014; Opt 2015)(two-year contract) |
| 12/13 | Jack Hannahan | 3B | Signed as Free Agent, ( 2013-2014; Opt 2015)(two-year contract) |
| 12/11 | Jason Donald | SS | Traded From, Cleveland (Three-team trade) |
| 12/11 | Shin-Soo Choo | RF | Traded From, Cleveland (Three-team trade) |
| 12/8 | Ryan Ludwick | LF | Signed as Free Agent, ( 2013-2014; Opt 2015)(two-year contract) |
| 11/28 | Jonathan Broxton | P | Signed as Free Agent, ( 2013-2015; Opt 2016)(three-year contract) |
| More Transactions |
