| 11/18/2009 |
The Detroit Lions sign CB DeAngelo Smith. |
| 11/17/2009 |
The Detroit Lions place CB Jack Williams on injured/reserve. |
| 11/17/2009 |
The Detroit Lions sign C Melvin Fowler. |
| 11/10/2009 |
The Detroit Lions claim CB Jack Williams from the Denver Broncos. |
| 11/10/2009 |
The Detroit Lions sign LB Danny Lansanah to their practice squad. |
| 11/09/2009 |
The Detroit Lions release CB Jason David . |
| 11/07/2009 |
The Detroit Lions release WR John Standeford and activate DT Joe Cohen from their practice squad. |
| 11/03/2009 |
The Detroit Lions place CB Demarcus Faggins on reserve/injured and sign CB Jason David. The Lions also release WR Taurus Johnson from their practice squad and sign WR Eric Fowler. |
| 10/29/2009 |
The Detroit Lions release RB Tristan Davis and sign RB Cedric Peerman to their practice squad. |
| 10/22/2009 |
The Detroit Lions place DE Copeland Bryan on reserve/injured and sign LB Vinny Ciurciu. |
| 10/21/2009 |
The Detroit Lions release DT Jervonte Jackson from their practice squad and sign DT Joe Cohen and DB Jahi Word-Daniels to their practice squad. T Lydon Murtha terminates his practice squad contract and signs with the Miami Dolphin's active roster. |
| 10/13/2009 |
The Detroit Lions release DT Chuck Darby, DB DeAndre Wright and sign DB DeMarcus Faggins and WR John Standeford . The Lions also sign DE Robert Henderson to their practice squad. |
| 10/12/2009 |
The Detroit Lions place CB Eric King on reserve/injured. The Lions also place DT Mathias Askew on practice squad/injured and release WR Logan Payne from the practice squad. The Lions sign WR Kole Heckendorf and DT Jervonte Jackson to the practice squad. |
| 10/08/2009 |
The Detroit Lions sign WR Logan Payne to their practice squad. |
| 10/07/2009 |
The Detroit Lions release LB Darnell Bing and sign LB Zack Follett from their practice squad. |
| 10/06/2009 |
The Detroit Lions claim DB Marvin White off waivers from the Dallas Cowboys. |
| 10/05/2009 |
The Detroit Lions place WR Adam Jennings on reserve/injured. |
| 09/30/2009 |
The Detroit Lions release WR Yamon Figurs and re-sign WR Adam Jennings . |
| 09/30/2009 |
The Detroit Lions release WR John Broussard and TE Carson Butler from their practice squad. The Lions also sign WR Taurus Johnson and DB Deandre Wright to their practice squad. |
| 09/30/2009 |
The Detroit Lions re-sign DT Chuck Darby and release DB Marcus McCauley . |
| 09/22/2009 |
The Lions release QB BROCK BERLIN from the practice squad and sign DT MATHIAS ASKEW. |
| 09/17/2009 |
The Lions claim DE TURK McBRIDE from the Kansas City Chiefs. |
| 09/16/2009 |
The Lions release DT ORIEN HARRIS. |
| 09/07/2009 |
The Detroit Lions have signed QB Berlin Brock to the practice squad. |
| 09/06/2009 |
The Detroit Lions claim the following players: DE Copeland Bryan, WR Yamon Figurs, DB Kevin Hobbs and DB Marcus McCauley . |
| 09/06/2009 |
The Detroit Lions trade QB Kevin O'Connell to the NY Jets. |
| 09/06/2009 |
The Detroit Lions release the following players: DE Ikaika Alama-Francis, DB Cletis Gordon and WR Adam Jennings. |
| 09/06/2009 |
The Detroit Lions sign the following players to the practice squad: WR John Broussard , TE Carson Butler , RB Tristan Davis , LB Zack Follett , C Dan Gerberry , TE Dan Gronkowski , T Lydon Murtha . |
| 09/05/2009 |
The Detroit Lions release the following players: T Lydon Murtha , DB Chris Roberson, DB Ramzee Robinson, DB Stuart Schweigert, DT Shaun Smith, LB Spenser Smith, WR John Standeford |
| 09/05/2009 |
The Detroit Lions release the following players: LB Rufus Alexander, QB Brooks Bollinger, G Milford Brown, TE Carson Butler , RB Aveion Cason, WR Keary Colbert, DE Sean Conover, K Billy Cundiff, DT Chuck Darby, RB Tristan Davis , LB Zack Follett , C Dan Gerberry , TE Dan Gronkowski , DB Calvin Lowry |
| 09/04/2009 |
The Lions acquire S Ko Simpson from the Buffalo Bills in exchange for an undisclosed 2010 draft choice. The Lions also release DE Orion Martin. |
| 09/03/2009 |
The Lions claim DB Cletis Gordon. |
| 09/02/2009 |
The Lions release WR Glenn Holt. |
| 09/01/2009 |
The Lions sign QB Brooks Bollinger and release G Terrence Metcalf. |
| 08/31/2009 |
The Lions place CB Dexter Wynn on reserve/injured and release WR D.J. Boldin, LB Rob Francois, S Lamarcus Hicks and DE Ryan Kees . |
| 08/28/2009 |
The Lions sign WR Glenn Holt and release WR Billy McMullen. |
| 08/27/2009 |
The Lions claim DE Orion Martin off waivers from Miami, sign K Billy Cundiff and LB Rufus Alexander and release K Swayze Waters and RB Allen Ervin . |
| 08/25/2009 |
The Lions release WR Eric Fowler . |
| 08/24/2009 |
The Lions waive/injured WR Kenneth Harris and sign RB Tristan Davis. |
| 08/21/2009 |
The Lions place S Daniel Bullocks on the reserve/injured list and sign LB Robert Francois. |
| 08/18/2009 |
The Lions place LB Cody Spencer on reserve/injured and re-sign K Swayze Waters . |
| 08/17/2009 |
The Lions waive/injured T Kirk Barton and release WR Bobby Sippio. They also sign WR Dane Looker and G Terrance Metcalf. |
| 08/14/2009 |
The Lions release DT John Gill and TE Jake Nordin and sign G Milford Brown and S Calvin Lowry. |
| 08/12/2009 |
The Lions release T Toniu Fonoti and sign WR Billy McMullen |
| 08/11/2009 |
The Lions sign DT Shaun Smith |
| 08/10/2009 |
The Lions release LB Curtis Gatewood and re-sign LB Spenser Smith. |
| 08/07/2009 |
The Lions place T Damion Cook on reserve/injured and sign WR BOBBY SIPPIO. |
| 08/06/2009 |
The Lions sign TE CARSON BUTLER and release K Swayze Waters . |
| 07/31/2009 |
The Lions sign Selected Draft Choices DT SAMMIE LEE HILL, WR Derrick Williams and TE Brandon Pettigrew . The Lions have also released LB Spenser Smith. |
| 07/31/2009 |
The Lions sign Selected Draft Choice WR Derrick Williams . |
| 07/30/2009 |
The Lions sign Selected Draft Choice S Louis Delmas and release DE Eric Hicks and CB ANTONIO SMITH. |
| 07/28/2009 |
The Lions release DB Tra Battle and sign DB William James . |
| 07/28/2009 |
The Lions sign Selected Draft Choices LB DeAndre Levy and T Lydon Murtha . |
| 07/20/2009 |
The Lions sign Selected Draft Choice LB Zack Follett . |
| 07/16/2009 |
The Lions sign Selected Draft Choice RB Aaron Brown . |
| 07/03/2009 |
The Lions release LB Alex Lewis. |
| 07/01/2009 |
The Lions trade S GERALD ALEXANDER to the Jacksonville Jaguars for WR/PR Dennis Northcutt . |
| 06/26/2009 |
The Lions release G JAMES BLAIR and WR TOMMY SAUNDERS and sign WR Kenneth Harris . |
| 06/26/2009 |
The Lions sign Selected Draft Choice TE Dan Gronkowski . |
| 06/25/2009 |
The Lions release WR CHRIS HANNON. |
| 06/02/2009 |
The Lions sign S Marquand Manuel . |
| 06/01/2009 |
The Lions release T GEORGE FOSTER and sign T Jon Jansen . |
| 05/29/2009 |
The Lions release FB JON BRADLEY. |
| 05/28/2009 |
The Lions claim S Tra Battle off waivers from Dallas and release LB ANDREW DOWNEY. |
| 05/21/2009 |
The Lions sign T Ephraim Salaam . |
| 05/15/2009 |
The Lions release T JUNIUS COSTON and WR WILL FRANKLIN. |
| 05/14/2009 |
The Lions sign undrafted free agent DE Ryan Kees . |
| 05/08/2009 |
The Lions release LB CHRIS GRAHAM and sign WR TOMMY SAUNDERS. |
| 05/07/2009 |
The Lions re-sign unrestricted free agent WR Keary Colbert and RB Antone Smith. |
| 05/06/2009 |
The Lions sign LB Larry Foote . |
| 05/05/2009 |
The Lions release RB BRIAN CALHOUN, WR STEVE SANDERS and WR TRAVIS TAYLOR. The Lions also sign DE Eric Hicks, G Toniu Fonoti , LB Spenser Smith and claim DE Jason Hunter off waivers from Green Bay. |
| 04/30/2009 |
The Lions release CB TRAVIS FISHER. |
| 04/29/2009 |
The Lions release TE MICHAEL GAINES. |
| 04/28/2009 |
The Lions claim T Kirk Barton off waivers from the Cincinnati Bengals and waive QB DREW HENSON, CB PACINO HORNE and G MATT LENTZ. |
| 04/23/2009 |
The Lions claim LB Curtis Gatewood off waivers from Kansas City. |
| 04/18/2009 |
The Lions sign free agent CB PACINO HORNE. |
| 04/17/2009 |
The Lions sign free agent CB ANTONIO SMITH. |
| 04/16/2009 |
The Lions sign free agents WR Ronald Curry and FB Terrelle Smith and release S DOWAYNE DAVIS. |
| 04/14/2009 |
The Lions claim WR WILLIAM FRANKLIN. |
| 04/07/2009 |
The Lions sign G MATT LENTZ. |
| 04/06/2009 |
The Lions re-sign T GEORGE FOSTER. |
| 04/03/2009 |
The Lions sign C Dylan Gandy . |
| 03/19/2009 |
The Lions sign G JAMES BLAIR. |
| 03/18/2009 |
The Lions release WR REGGIE BALL. |
| 03/17/2009 |
The Lions trade DT CORY REDDING to the Seattle Seahawks in exchange for LB Julian Peterson . |
| 03/16/2009 |
The Lions sign unrestricted free agent TE Will Heller . |
| 03/13/2009 |
The Lions release LB ANTHONY CANNON. |
| 03/09/2009 |
The Lions re-sign unrestricted free agent RB Aveion Cason and sign unrestricted free agent LB Cody Spencer . |
| 03/07/2009 |
The Lions sign unrestricted free agent T Daniel Loper . |
| 03/05/2009 |
The Lions sign unrestricted free agent CB Phillip Buchanon . |
| 03/04/2009 |
The Lions sign unrestricted free agent DT Grady Jackson . |
| 03/02/2009 |
The Lions sign unrestricted free agent WR Bryant Johnson . |
| 03/02/2009 |
The Lions aquire CB Anthony Henry in a trade with Dallas for QB JON KITNA. |
| 02/28/2009 |
The Lions sign unrestricted free agents CB Eric King and RB Maurice Morris and claim TE Sean Conover off waivers from the New York Jets. |
| 02/18/2009 |
The Lions re-sign unrestricted free agents K Jason Hanson , G Stephen Peterman and exclusive rights player CB Ramzee Robinson . |
| 02/09/2009 |
The Lions release CB LEIGH BODDEN, TE DAN CAMPBELL, T JON DUNN, WR MIKE FURREY, G EDWIN MULITALO and S DWIGHT SMITH. |
| 01/07/2009 |
The Lions sign WR STEVE SANDERS for the 2009 season. |