June 5
 The Sacramento Monarchs waived Miao Li Jie.
 The Los Angeles Sparks waived Jessica Moore.
 The Minnesota Lynx waived Tye'sha Fluker, Emily Fox and Anna DeForge.
 The Washington Mystics Bernice Mosby.
 The San Antonio Silver Stars waived Joyce Ekworomadu and Bernadette Ngoyisa.
 The Connecticut Sun waived Lyndra Littles, Danielle Page and Carrem Gay.

June 4
 The Chicago Sky waived Mistie Bass.
 The Seattle Storm waived A’Quonesia Franklin and Aja Parham.
 The Washington Mystics waived Kristen Mann and Kelly Schumacher.
 The Indiana Fever waived Tan White and Danielle Campbell.
 The Los Angeles Sparks waived Ashley Paris and Marta Fernandez.
 The Sacramento Monarchs waived Charel Allen, Whitney Boddie and Morgan Warburton.
 The New York Liberty waived Jessica Davenport and Lisa Willis.

June 2
 The Phoenix Mercury waived Yuko Oga.
 The Washington Mystics waived Eshaya Murphy.

June 1
 The Minnesota Lynx signed free agent Tye'sha Fluker.
 The Washington Mystics waived Kiesha Brown.
 The San Antonio Silver Stars waived Valeriya Berezhynska and Candyce Bingham.
 The Connecticut Sun waived Ketia Swanier and Ashley Hayes.

May 31
 The Seattle Storm waived La'Tangela Atkinson and Kasha Terry.
 The Atlanta Dream waived Chantelle Anderson.
 The Phoenix Mercury waived Murriel Page.
 The Chicago Sky waived Jennifer Risper.

May 30
 The Minnesota Lynx waived Kamesha Hairston and Aisha Mohammed.

May 29
 The Chicago Sky waived Liz Moeggenberg.
 The Atlanta Dream waived Marlies Gipson.
 The New York Liberty waived Abby Waner.

May 27
 The Detroit Shock waived Tanae Davis-Cain.

May 26
 The San Antonio Silver Stars signed Joyce Ekworomadu to a training camp contract.

May 25
 The San Antonio Silver Stars waived Morenike Atunrase.
 The Chicago Sky waived Quianna Chaney and Danielle Gant.
 The Sacramento Monarchs waived Barbara Farris.

May 22
 The Seattle Storm waived Kimberly Beck and Mara Freshour.
 The Indiana Fever waived Doneeka Lewis and Sherill Baker.

May 18
 The Phoenix Mercury signed free agent Murriel Page.
 The Los Angeles Sparks waived Britney Jordan.
 The San Antonio Silver Stars signed Amber Petillon to a training camp contract.
 The Detroit Shock signed free agents Kristen Rasmussen and Sequoia Holmes to training camp contracts.

May 15
 The Atlanta Dream signed free agent Coco Miller.

May 11
 The Atlanta Dream waived Jessica Morrow.
 The Minnesota Lynx signed Kamesha Hairston and Aisha Mohammed to training camp contracts.
 The Washington Mystics signed free agent Kelly Schumacher and waived Coco Miller.
 The San Antonio Silver Stars signed free agent Katie Feenstra Mattera.

May 7
 The Seattle Storm signed La’Tangela Atkinson, A’Quonesia Franklin and Aja Parham to training camp contacts.
 The Minnesota Lynx signed free agent Roneeka Hodges.
 The Los Angeles Sparks signed free agent Kristi Harrower to a training camp contract.
 The Seattle Storm waived Melanie Thomas.

May 6
 The Minnesota Lynx renounced the rights to Kristi Harrower.

May 5
 As part of a three-team trade, the New York Liberty traded its first round pick in the 2010 WNBA Draft to the Los Angeles Sparks for Sidney Spencer. The Los Angeles Sparks traded the pick and Raffaella Masciadri to the Minnesota Lynx for Noelle Quinn.

May 4
 The Seattle Storm re-signed free agent Lauren Jackson.
 The Indiana Fever signed free agent Tamecka Dixon.

April 28
 The Atlanta Dream waived Ashley Shields.
 The Chicago Sky signed Chen Nan.

April 24
 The Seattle Storm waived Kristen O'Neill.

April 22
 The Detroit Shock signed free agent Kristin Haynie.
 The Connecticut Sun signed Kristi Cirone, Ashley Hayes and Carrem Gay to training camp contracts.
 The Minnesota Lynx waived Navonda Moore.

April 20
 The Atlanta Dream signed Chamique Holdsclaw.
 The Phoenix Mercury waived Kim Smith.
 The Indiana Fever waived Allison Feaster.

April 16
 The Detroit Shock signed Tiera DeLaHoussaye to a training camp contract.

April 14
 The Los Angeles Sparks signed free agent Betty Lennox.
 The Los Angeles Sparks waived Murriel Page.

April 9
 Complete 2009 WNBA Draft Board
 The Detroit Shock traded Ashley Shields to the Atlanta Dream for the No. 18 pick in the 2009 WNBA Draft.

April 8
 The Atlanta Dream waived Katie Feenstra.

March 30
 The San Antonio Silver Stars signed free agent Belinda Snell.