| Last updated: Tue, February 9, 2010, 12:51 EST |
| Date | Player | Pos. | Transaction |
| 2/5 | Adam Kennedy | 2B | Signed as Free Agent, ( 2010)(one-year contract) |
| 2/5 | Shawn Estes | P | Signed to a Minor League Contract |
| 2/3 | Kevin Mench | | Signed to a Minor League Contract |
| 1/29 | Miguel Batista | P | Signed to a Minor League Contract |
| 1/28 | Marco Estrada | P | Designated for Assignment |
| 1/28 | Tyler Walker | P | Signed as Free Agent, ( 2010)(one-year contract) |
| 1/25 | Chris Duncan | LF | Signed to a Minor League Contract |
| 1/25 | Chuck James | | Signed to a Minor League Contract |
| 1/19 | Jason Bergmann | P | Signed, ( 2010)(avoids arbitration) |
| 1/19 | Wil Nieves | C | Signed, ( 2010)(avoids arbitration) |
| 1/19 | Josh Willingham | LF | Signed, ( 2010)(avoids arbitration) |
| 1/19 | Jesus Flores | C | Signed, ( 2010)(avoids arbitration) |
| 1/8 | Victor Garate | P | Designated for Assignment |
| 1/6 | Matt Capps | P | Signed as Free Agent, ( 2010)(one-year contract) |
| 12/28 | Eric Bruntlett | 2B | Signed to a Minor League Contract |
| 12/28 | Josh Whitesell | 1B | Signed to a Minor League Contract |
| 12/24 | Matt Capps | P | Signed as Free Agent, ( 2010)(one-year contract) |
| 12/24 | Eddie Guardado | P | Signed to a Minor League Contract |
| 12/21 | Jason Marquis | P | Signed as Free Agent, ( 2010-2011)(two-year contract) |
| 12/15 | Logan Kensing | P | Signed to a Minor League Contract |
| 12/15 | Joel Peralta | P | Signed to a Minor League Contract |
| 12/15 | Jamie Burke | C | Signed to a Minor League Contract |
| 12/14 | Scott Olsen | P | Signed as Free Agent, ( 2010)(one-year contract) |
| 12/12 | Mike MacDougal | P | Not Offered Contract and Became Free Agent, (non-tendered) |
| 12/12 | Scott Olsen | P | Not Offered Contract and Became Free Agent, (non-tendered) |
| 12/11 | Ryan Speier | P | Signed to a Minor League Contract |
| 12/10 | Zack Segovia | P | Released |
| 12/10 | Jamie Hoffmann | RF | Drafted Via Rule 5 from Minors |
| 12/8 | Ivan Rodriguez | C | Signed as Free Agent, ( 2010-2011)(two-year contract) |
| 12/8 | Jerry Owens | CF | Signed to a Minor League Contract |
| 12/7 | Saul Rivera | P | Released |
| 12/7 | Brian Bruney | P | Traded From, NY Yankees (for OF Jamie Hoffman) |
| 11/8 | Jordan Zimmermann | P | Removed From 60-Day DL, (Right elbow discomfort) |
| 11/8 | Scott Olsen | P | Removed From 60-Day DL, (Left shoulder surgery - out for season) |
| 11/8 | Roger Bernadina | CF | Removed From 60-Day DL, (Fractured right ankle) |
| 11/8 | Jesus Flores | C | Removed From 60-Day DL, (Right labrum injury) |
| 11/6 | Dmitri Young | 1B | Declared Free Agency |
| 11/6 | Dmitri Young | 1B | Removed From 60-Day DL, (Hip and back strain) |
| 11/6 | Josh Bard | C | Declared Free Agency |
| 11/6 | Ron Villone | P | Declared Free Agency |
| 11/6 | Livan Hernandez | P | Declared Free Agency |
| 11/6 | Pete Orr | 2B | Outrighted to Minors |
| 11/6 | Logan Kensing | P | Outrighted to Minors |
| 11/6 | Austin Kearns | RF | Declared Free Agency, (team option declined) |
| 11/5 | Doug Slaten | P | Acquired Off Waivers From, Arizona |
| 10/22 | Jamie Burke | C | Outrighted to Minors |
| 10/22 | Jorge Padilla | RF | Outrighted to Minors |
| 10/13 | Austin Kearns | RF | Removed From 15-Day DL, (Bruised right thumb) |
| 10/13 | Nyjer Morgan | LF | Removed From 15-Day DL, (Fractured left hand - out for season) |
| 9/17 | Jamie Burke | C | Purchased From Minors |
| 9/17 | Jamie Burke | C | Traded From, Seattle (for cash considerations) |
| 9/17 | Jesus Flores | C | Placed on 60-Day DL, (Right labrum injury) |
| 9/10 | Luke Montz | C | Designated for Assignment |
| 9/10 | Jesse English | | Acquired Off Waivers From, San Francisco |
| 9/8 | Marco Estrada | P | Called Up from Minors |
| 9/8 | Ross Detwiler | P | Called Up from Minors |
| 9/8 | Ian Desmond | SS | Called Up from Minors |
| 9/8 | Logan Kensing | P | Purchased From Minors |
| 9/8 | Jorge Sosa | P | Designated for Assignment |
| 9/8 | Zack Segovia | P | Purchased From Minors |
| 9/8 | Scott Olsen | P | Transferred to 60-Day DL, (Left shoulder surgery - out for season) |
| 9/4 | Jesus Flores | C | Removed From 15-Day DL, (Right shoulder contusion) |
| 9/4 | Victor Garate | P | Called Up from Minors |
| 9/2 | Victor Garate | P | Sent to Minors |
| 8/31 | Justin Maxwell | CF | Called Up from Minors |
| 8/28 | Nyjer Morgan | LF | Placed on 15-Day DL, (Fractured left hand - out for season) |
| 8/28 | Pete Orr | 2B | Purchased From Minors |
| 8/26 | Livan Hernandez | P | Signed as Free Agent, ( 2009) |
| 8/26 | Dmitri Young | 1B | Transferred to 60-Day DL, (Hip and back strain) |
| 8/26 | Collin Balester | P | Sent to Minors |
| 8/17 | Logan Kensing | P | Designated for Assignment |
| 8/17 | Mike Morse | RF | Purchased From Minors |
| More Transactions |
