| Last updated: Sat, May 25, 2013, 02:46 EDT |
| Date | Player | Pos. | Transaction |
| 5/23 | Mark Teahen | 3B | Signed to a Minor League Contract |
| 5/23 | Derek Lowe | P | Released |
| 5/22 | Ross Wolf | P | Purchased From Minors |
| 5/22 | Cory Burns | P | Sent to Minors |
| 5/21 | Neal Cotts | P | Purchased From Minors |
| 5/21 | A.J. Pierzynski | C | Removed From 15-Day DL, (Strained right oblique) |
| 5/20 | A.J. Pierzynski | C | Recalled From Minors, Rehab Assignment |
| 5/20 | Derek Lowe | P | Designated for Assignment |
| 5/20 | Josh Lindblom | P | Sent to Minors |
| 5/20 | Robinson Chirinos | C | Sent to Minors |
| 5/20 | Josh Lindblom | P | Called Up from Minors |
| 5/19 | Ian Kinsler | 2B | Placed on 15-Day DL, (Right intercostal strain) |
| 5/19 | Jurickson Profar | SS | Called Up from Minors |
| 5/19 | A.J. Pierzynski | C | Sent to Minors, For Rehabilitation |
| 5/17 | Justin Miller | P | Sent to Minors, For Rehabilitation |
| 5/16 | Cory Burns | P | Called Up from Minors |
| 5/16 | Alexi Ogando | P | Placed on 15-Day DL, (Right biceps tendinitis) |
| 5/15 | Scott Richmond | P | Signed to a Minor League Contract |
| 5/13 | Colby Lewis | P | Recalled From Minors, Rehab Assignment |
| 5/12 | Martin Perez | P | Removed From 15-Day DL, (Cracked ulna bone, left forearm) |
| 5/12 | Martin Perez | P | Sent to Minors |
| 5/12 | Martin Perez | P | Recalled From Minors, Rehab Assignment |
| 5/10 | A.J. Pierzynski | C | Placed on 15-Day DL, (Strained right oblique) |
| 5/10 | Robinson Chirinos | C | Called Up from Minors |
| 5/9 | Colby Lewis | P | Sent to Minors, For Rehabilitation |
| 5/6 | Martin Perez | P | Sent to Minors, For Rehabilitation |
| 4/30 | Randy Wells | P | Retired |
| 4/11 | Justin Miller | P | Called Up from Minors |
| 4/11 | Matt Harrison | P | Placed on 15-Day DL, (Inflamed nerve in lower back) |
| 4/11 | Justin Miller | P | Placed on 60-Day DL, (Recovery from right elbow surgery) |
| 4/11 | Justin Grimm | P | Called Up from Minors |
| 4/9 | Nick Tepesch | P | Purchased From Minors |
| 4/9 | Julio Borbon | CF | Designated for Assignment |
| 4/8 | Robinson Chirinos | C | Traded From, Tampa Bay (for future considerations) |
| 4/8 | Jeff Beliveau | P | Designated for Assignment |
| 4/8 | Robinson Chirinos | C | Sent to Minors |
| 4/4 | Elvis Andrus | SS | Signed, ( 2015-2022; Opt 2023)(eight-year extension) |
| 3/31 | Jeff Baker | 1B | Purchased From Minors |
| 3/31 | Brandon Allen | 1B | Released |
| 3/31 | Colby Lewis | P | Placed on 15-Day DL, (Recovery from right elbow surgery) |
| 3/31 | Derek Lowe | P | Purchased From Minors |
| 3/31 | Martin Perez | P | Placed on 15-Day DL, (Cracked ulna bone, left forearm) |
| 3/31 | Joakim Soria | P | Placed on 15-Day DL, (Recovery from right elbow surgery) |
| 3/30 | Josh Lindblom | P | Sent to Minors |
| 3/30 | Cory Burns | P | Sent to Minors |
| 3/29 | Jurickson Profar | SS | Sent to Minors |
| 3/28 | Brad Mills | P | Outrighted to Minors |
| 3/27 | Brandon Snyder | 1B | Released |
| 3/24 | Brad Mills | P | Acquired Off Waivers From, Los Angeles |
| 3/24 | Neftali Feliz | P | Placed on 60-Day DL, (Recovery from right elbow surgery) |
| 3/23 | Yoshinori Tateyama | P | Signed to a Minor League Contract |
| 3/23 | Konrad Schmidt | C | Released |
| 3/22 | Justin Grimm | P | Sent to Minors |
| 3/21 | Yoshinori Tateyama | P | Released |
| 3/19 | Wilmer Font | P | Sent to Minors |
| 3/19 | Mike Olt | 1B | Sent to Minors |
| 3/19 | Jeff Beliveau | P | Sent to Minors |
| 3/6 | Derek Lowe | P | Signed to a Minor League Contract |
| 1/26 | Jeff Baker | 1B | Signed to a Minor League Contract |
| 1/21 | David Murphy | LF | Signed, ( 2013)(avoids arbitration) |
| 1/21 | Nate Robertson | P | Signed to a Minor League Contract |
| 1/17 | Neftali Feliz | P | Signed, ( 2013)(avoids arbitration) |
| 1/17 | Matt Harrison | P | Signed, ( 2013-2017; Opt 2018)(five-year extension) |
| 1/15 | Kyle McClellan | P | Signed to a Minor League Contract |
| 1/15 | Ryan Feierabend | P | Signed to a Minor League Contract |
| 1/10 | Lance Berkman | 1B | Signed as Free Agent, ( 2013; Opt 2014)(one-year contract) |
| 1/7 | Tommy Hottovy | P | Designated for Assignment |
| 1/5 | Eli Whiteside | C | Outrighted to Minors |
| 1/3 | Jason Frasor | P | Signed as Free Agent, ( 2013)(one-year contract) |
| 1/3 | Eli Whiteside | C | Designated for Assignment |
| 12/26 | Luis Martinez | C | Designated for Assignment |
| 12/26 | A.J. Pierzynski | C | Signed as Free Agent, ( 2013)(one-year contract) |
| 12/21 | Jeff Beliveau | P | Acquired Off Waivers From, Chi. Cubs |
| 12/20 | Yoshinori Tateyama | P | Signed to a Minor League Contract |
| 12/14 | Konrad Schmidt | C | Outrighted to Minors |
| 12/12 | Eli Whiteside | C | Acquired Off Waivers From, Toronto |
| 12/12 | Brandon Snyder | 1B | Signed to a Minor League Contract |
| 12/9 | Josh Lindblom | P | Traded From, Philadelphia (w/RHP Bonilla for 1B Michael Young) |
| 12/6 | Randy Wells | P | Signed to a Minor League Contract |
| 12/6 | Ryan Spilborghs | RF | Signed to Play in Japan, (Saitama Seibu Lions) |
| 12/6 | Evan Meek | P | Signed to a Minor League Contract |
| 12/6 | Brandon Allen | 1B | Signed to a Minor League Contract |
| 12/4 | Joakim Soria | P | Signed as Free Agent, ( 2013-2014; Opt 2015)(two-year contract) |
| 12/2 | Geovany Soto | C | Signed as Free Agent, ( 2013)(one-year contract) |
| 11/30 | Brandon Snyder | 1B | Not Offered Contract and Became Free Agent, (non-tendered) |
| 11/30 | Geovany Soto | C | Not Offered Contract and Became Free Agent, (non-tendered) |
| 11/28 | Cory Burns | P | Traded From, San Diego (for future considerations) |
| 11/28 | Collin Balester | P | Signed to a Minor League Contract |
| More Transactions |
