| Last updated: Mon, May 20, 2013, 10:10 EDT |
| Date | Player | Pos. | Transaction |
| 5/18 | Jose Altuve | 2B | Reinstated from Bereavement/Family Medical Emergency List |
| 5/18 | Jake Elmore | SS | Sent to Minors |
| 5/14 | Philip Humber | P | Outrighted to Minors |
| 5/14 | Jake Elmore | SS | Called Up from Minors |
| 5/14 | Jose Altuve | 2B | Placed on Bereavement/Family Medical Emergency List |
| 5/12 | Philip Humber | P | Designated for Assignment |
| 5/12 | Edgar Gonzalez | P | Signed as Free Agent, ( 2013)(one-year contract) |
| 5/11 | Fernando Martinez | LF | Outrighted to Minors |
| 5/11 | Edgar Gonzalez | P | Outrighted to Minors |
| 5/11 | Rick Ankiel | RF | Cleared Waivers and Became a Free Agent |
| 5/10 | Josh Fields | P | Sent to Minors, For Rehabilitation |
| 5/9 | Rick Ankiel | RF | Released |
| 5/7 | Fernando Martinez | LF | Designated for Assignment |
| 5/7 | Jimmy Paredes | 3B | Called Up from Minors |
| 5/7 | J.D. Martinez | LF | Removed From 15-Day DL, (Sprained right knee) |
| 5/7 | J.D. Martinez | LF | Recalled From Minors, Rehab Assignment |
| 5/7 | Trevor Crowe | CF | Purchased From Minors |
| 5/7 | Rick Ankiel | RF | Designated for Assignment |
| 5/6 | Brandon Laird | 3B | Sent to Minors |
| 5/2 | Jordan Lyles | P | Called Up from Minors |
| 5/2 | Dallas Keuchel | P | Called Up from Minors |
| 5/1 | Rhiner Cruz | P | Sent to Minors |
| 5/1 | Brad Peacock | P | Sent to Minors |
| 4/30 | J.D. Martinez | LF | Sent to Minors, For Rehabilitation |
| 4/24 | Robbie Grossman | CF | Called Up from Minors |
| 4/24 | Justin Maxwell | CF | Placed on 15-Day DL, (Fractured left hand) |
| 4/22 | Jose Cisnero | P | Called Up from Minors |
| 4/22 | Brett Oberholtzer | P | Sent to Minors |
| 4/21 | Dallas Keuchel | P | Sent to Minors |
| 4/21 | Brett Oberholtzer | P | Called Up from Minors |
| 4/20 | Travis Blackley | P | Recalled From Minors, Rehab Assignment |
| 4/20 | Travis Blackley | P | Removed From 15-Day DL, (Left shoulder strain) |
| 4/20 | Fernando Martinez | LF | Removed From 15-Day DL, (Strained left oblique) |
| 4/20 | J.D. Martinez | LF | Placed on 15-Day DL, (Sprained right knee) |
| 4/20 | Fernando Martinez | LF | Recalled From Minors, Rehab Assignment |
| 4/18 | Brandon Laird | 3B | Purchased From Minors |
| 4/18 | Xavier Cedeno | P | Designated for Assignment |
| 4/18 | Brett Wallace | 1B | Sent to Minors |
| 4/17 | Travis Blackley | P | Sent to Minors, For Rehabilitation |
| 4/14 | Fernando Martinez | LF | Sent to Minors, For Rehabilitation |
| 4/8 | Paul Clemens | P | Called Up from Minors |
| 4/8 | Josh Fields | P | Placed on 15-Day DL, (Right forearm strain) |
| 4/6 | Dallas Keuchel | P | Called Up from Minors |
| 4/6 | Travis Blackley | P | Placed on 15-Day DL, (Left shoulder strain) |
| 4/4 | Edgar Gonzalez | P | Designated for Assignment |
| 4/4 | Travis Blackley | P | Traded From, Oakland (for OF Jake Goebbert) |
| 3/31 | Rick Ankiel | CF | Purchased From Minors |
| 3/31 | Edgar Gonzalez | P | Purchased From Minors |
| 3/31 | Erik Bedard | P | Purchased From Minors |
| 3/30 | Alex White | P | Placed on 60-Day DL, (Right elbow strain) |
| 3/30 | Fernando Martinez | LF | Placed on 15-Day DL, (Strained left oblique) |
| 3/30 | J.D. Martinez | LF | Called Up from Minors |
| 3/28 | Tyler Greene | 2B | Cleared Waivers and Became a Free Agent |
| 3/27 | Sam Demel | P | Called Up from Minors, - Not to Report |
| 3/26 | Tyler Greene | 2B | Released |
| 3/24 | J.D. Martinez | LF | Sent to Minors |
| 3/24 | Ronny Cedeno | SS | Signed as Free Agent, ( 2013)(one-year contract) |
| 3/22 | Jake Elmore | SS | Sent to Minors |
| 3/20 | John Ely | P | Sent to Minors |
| 3/20 | Jordan Lyles | P | Sent to Minors |
| 3/17 | Dallas Keuchel | P | Sent to Minors |
| 3/17 | Jimmy Paredes | 3B | Sent to Minors |
| 3/10 | Sam Demel | P | Sent to Minors |
| 2/17 | Mark Hamburger | P | Released |
| 2/4 | Brad Peacock | P | Traded From, Oakland (for SS Jed Lowrie, five-player deal) |
| 2/4 | Chris Carter | 1B | Traded From, Oakland (for SS Jed Lowrie, five-player deal) |
| 1/21 | Erik Bedard | P | Signed to a Minor League Contract |
| 1/18 | Wesley Wright | P | Signed, ( 2013)(avoids arbitration) |
| 1/18 | Jed Lowrie | SS | Signed, ( 2013)(avoids arbitration) |
| 1/18 | Bud Norris | P | Signed, ( 2013)(avoids arbitration) |
| 1/17 | Rick Ankiel | CF | Signed to a Minor League Contract |
| 1/12 | Jason Jaramillo | C | Signed to a Minor League Contract |
| 12/22 | Brandon Laird | 3B | Outrighted to Minors |
| 12/21 | Jose Veras | P | Signed as Free Agent, ( 2013)(one-year contract) |
| 12/21 | Che-Hsuan Lin | RF | Outrighted to Minors |
| 12/19 | John Ely | P | Traded From, Los Angeles (for LHP Rob Rasmussen) |
| 12/19 | Che-Hsuan Lin | RF | Designated for Assignment |
| 12/18 | Carlos Pena | 1B | Signed as Free Agent, ( 2013)(one-year contract) |
| 12/17 | Mickey Storey | P | Designated for Assignment |
| 12/6 | Mickey Storey | P | Acquired Off Waivers From, NY Yankees |
| 12/4 | Alex White | P | Traded From, Colorado (for P Wilton Lopez & player to be named) |
| 11/30 | Philip Humber | P | Signed, ( 2013; Opt 2014)(avoids arbitration) |
| 11/30 | Philip Humber | P | Acquired Off Waivers From, Chi. White Sox |
| 11/26 | Trevor Crowe | CF | Signed to a Minor League Contract |
| 11/26 | Edgar Gonzalez | P | Signed to a Minor League Contract |
| 11/26 | Jose Valdez | P | Signed to a Minor League Contract |
| 11/26 | Sergio Escalona | P | Signed to a Minor League Contract |
| More Transactions |
