| Date |
Player |
Transaction |
| 2024/04/25 |
Leonardo Rivas SS  |
The Mariners selected Rivas' contract from Triple-A Tacoma on Thursday. |
| 2024/04/23 |
Collin Snider RP   |
The Mariners activated Snider (knee) from the 15-day injured list Tuesday and optioned him to Triple-A Tacoma. |
| 2024/04/22 |
Brett de Geus RP |
The Mariners optioned de Geus to Triple-A Tacoma on Monday. |
| 2024/04/21 |
Cody Bolton SP |
Bolton (illness) was activated from the 15-day injured list and will serve as the 27th man for Sunday's doubleheader at Colorado. |
| 2024/04/17 |
Sam Haggerty RF  |
The Mariners reinstated Haggerty (medical procedure) from the 10-day injured list Wednesday and optioned him to Triple-A Tacoma. |
| 2024/04/15 |
Ty Adcock P |
The Tigers claimed Adcock off waivers from the Mariners on Monday and optioned him to Triple-A Toledo. |
| 2024/04/15 |
Jonatan Clase CF  |
Clase was recalled from Triple-A Tacoma by the Mariners on Monday, Shannon Drayer of Seattle Sports 710 AM reports. |
| 2024/04/08 |
Ty Adcock P |
The Mariners designated Adcock for assignment Monday. |
| 2024/04/08 |
Brett de Geus RP |
The Mariners selected de Geus' contract from Triple-A Tacoma on Monday, Ryan Divish of The Seattle Times reports. |
| 2024/04/08 |
Ty France 1B |
The Mariners reinstated France (personal) from the paternity list Monday. |
| 2024/04/08 |
Tyson Miller RP |
The Mariners selected Miller's contract from Triple-A Tacoma on Monday, Ryan Divish of The Seattle Times reports. |
| 2024/04/08 |
Samad Taylor 2B |
Taylor was optioned to Triple-A Tacoma on Monday. |
| 2024/04/05 |
Sean Poppen RP  |
The Mariners released Poppen on Friday. |
| 2024/04/05 |
Samad Taylor 2B |
Taylor was recalled from Triple-A Tacoma by the Mariners on Friday, Shannon Drayer of Seattle Sports 710 AM reports. |
| 2024/04/04 |
Logan Evans SP |
Evans was assigned to Double-A Arkansas to begin his pro career. |
| 2024/04/02 |
Taylor Trammell RF |
The Dodgers claimed Trammell off waivers from the Mariners on Tuesday, Robert Murray of FanSided.com reports. |
| 2024/03/28 |
Emerson Hancock SP |
The Mariners recalled Hancock from Triple-A Tacoma on Thursday. |
| 2024/03/28 |
Taylor Trammell RF |
The Mariners designated Trammell for assignment Thursday, Ryan Divish of The Seattle Times reports. |
| 2024/03/23 |
Emerson Hancock SP |
The Mariners optioned Hancock to Triple-A Tacoma on Saturday, Daniel Kramer of MLB.com reports. |
| 2024/03/23 |
Samad Taylor 2B |
The Mariners optioned Taylor to Triple-A Tacoma on Saturday, Daniel Kramer of MLB.com reports. |
| 2024/03/21 |
Carlos Vargas SP |
The Mariners optioned Vargas to Triple-A Tacoma on Thursday, Shannon Drayer of Seattle Sports 710 AM reports. |
| 2024/03/19 |
Cade Marlowe LF |
The Mariners optioned Marlowe to Triple-A Tacoma on Tuesday, Shannon Drayer of Seattle Sports 710 AM reports. |
| 2024/03/18 |
Jonatan Clase CF |
Clase was optioned to Triple-A Tacoma on Monday, Daniel Kramer of MLB.com reports. |
| 2024/03/18 |
Cole Tucker SS,2B |
Tucker was released by the Mariners on Monday, Mark Feinsand of MLB.com reports. |
| 2024/02/03 |
Gregory Santos RP,SP  |
The Chicago White Sox traded RHP Gregory Santos to the Seattle Mariners. |
| 2024/01/30 |
Samad Taylor 2B |
The Kansas City Royals traded INF Samad Taylor to the Seattle Mariners. |
| 2024/01/29 |
Jorge Polanco SS,2B |
The Minnesota Twins traded INF Jorge Polanco to the Seattle Mariners. |
| 2024/01/05 |
Anthony DeSclafani SP |
The San Francisco Giants traded RHP Anthony DeSclafani to the Seattle Mariners. |
| 2024/01/05 |
Mitch Haniger RF |
The San Francisco Giants traded OF Mitch Haniger to the Seattle Mariners. |
| 2024/01/05 |
Luke Raley RF |
The Tampa Bay Rays traded OF Luke Raley to the Seattle Mariners. |
| 2023/12/03 |
Jackson Kowar RP |
The Atlanta Braves traded RHP Jackson Kowar to the Seattle Mariners. |
| 2023/12/03 |
Cole Phillips SP |
The Atlanta Braves traded RHP Cole Phillips to the Seattle Mariners. |
| 2023/11/22 |
Carlos Vargas SP |
The Arizona Diamondbacks traded RHP Carlos Vargas to the Seattle Mariners. |
| 2023/11/22 |
Seby Zavala C |
The Arizona Diamondbacks traded C Seby Zavala to the Seattle Mariners. |
| 2023/11/17 |
Luis Urias 3B |
The Boston Red Sox traded INF Luis Ur?as to the Seattle Mariners. |
| 2023/11/06 |
Blake Hunt C |
The Tampa Bay Rays traded C Blake Hunt to the Seattle Mariners. |
| 2023/11/02 |
Cody Bolton SP |
The Pittsburgh Pirates traded RHP Cody Bolton to the Seattle Mariners. |
| 2023/10/01 |
Eduard Bazardo RP |
Bazardo was optioned to Triple-A Tacoma on Sunday, Ryan Divish of The Seattle Times reports. |
| 2023/10/01 |
Prelander Berroa RP,SP |
Berroa was recalled from Double-A Arkansas on Sunday, Ryan Divish of The Seattle Times reports. |
| 2023/09/15 |
Brian O'Keefe C |
O'Keefe (personal) was activated from the paternity list Friday and optioned to Triple-A Tacoma. |
| 2023/09/12 |
Luis Torrens C |
The Mariners selected Torrens' contract from Triple-A Tacoma prior to Tuesday's game against the Angels. |
| 2023/09/12 |
Luke Weaver SP |
Weaver was claimed off waivers by the Yankees on Tuesday, Greg Joyce of the New York Post reports. |
| 2023/09/11 |
Jarred Kelenic LF |
Kelenic (foot) was activated from the 10-day injured list Monday, Ryan Divish of The Seattle Times reports. |
| 2023/09/11 |
Cade Marlowe LF |
The Mariners optioned Marlowe to Triple-A Tacoma on Monday. |
| 2023/09/10 |
Eduard Bazardo RP |
Seattle recalled Bazardo from Triple-A Tacoma on Sunday. |
| 2023/09/10 |
Luke Weaver SP |
Weaver was designated for assignment by the Mariners on Sunday. |
| 2023/09/02 |
Devin Sweet SP |
Sweet was claimed off waivers by the Athletics on Saturday. |
| 2023/09/01 |
Sam Haggerty RF |
The Mariners recalled Haggerty from Triple-A Tacoma on Friday. |
| 2023/08/31 |
Devin Sweet SP |
The Mariners designated Sweet for assignment Thursday, Ryan Divish of The Seattle Times reports. |
| 2023/08/22 |
Eduard Bazardo RP |
Bazardo was optioned to Triple-A Tacoma after Monday's game. |
| 2023/08/22 |
Darren McCaughan RP |
McCaughan was optioned to Triple-A Tacoma on Tuesday. |
| 2023/08/22 |
Luke Weaver SP |
Weaver was signed by the Mariners to a major-league contract and was added to the active roster Tuesday. |
| 2023/08/22 |
Bryan Woo RP |
Woo was reinstated from the 15-day injured list ahead of his start Tuesday against the White Sox. |
| 2023/08/21 |
J.P. Crawford SS |
The Mariners reinstated Crawford (concussion) from the 7-day injured list Monday. |
| 2023/08/21 |
Sam Haggerty RF |
Haggerty was optioned to Triple-A Tacoma on Monday. |
| 2023/08/21 |
Darren McCaughan RP |
McCaughan was recalled from Triple-A Tacoma on Monday. |
| 2023/08/20 |
Nick Wittgren RP |
Wittgren signed a minor-league contract with the Mariners on Sunday, Jon Heyman of the New York Post reports. |
| 2023/08/17 |
Eduard Bazardo RP |
Bazardo was recalled from Triple-A Tacoma on Thursday. |
| 2023/08/17 |
Ryder Ryan SP |
Seattle optioned Ryan to Triple-A Tacoma on Thursday. |
| 2023/08/16 |
Brian O'Keefe C |
Seattle selected O'Keefe's contract from Triple-A Tacoma on Wednesday. |
| 2023/08/12 |
Juan Then SP |
Then cleared waivers Saturday and was outrighted to Triple-A Tacoma. |
| 2023/08/11 |
Sam Haggerty RF |
Haggerty was recalled from Triple-A Tacoma on Friday. |
| 2023/08/11 |
Zach Muckenhirn SP,P |
Muckenhirn cleared waivers Friday and was sent outright to Triple-A Tacoma. |
| 2023/08/09 |
Emerson Hancock SP |
The Mariners selected Hancock's contract from Double-A Arkansas ahead of his scheduled start Wednesday versus the Padres at T-Mobile Park. |
| 2023/08/09 |
Zach Muckenhirn SP,P |
The Mariners designated Muckenhirn for assignment Wednesday. |
| 2023/08/09 |
Devin Sweet SP |
The Mariners optioned Sweet to Triple-A Tacoma on Wednesday. |
| 2023/08/08 |
Matt Festa RP |
Festa was designated for assignment by the Mariners on Tuesday. |
| 2023/08/08 |
Tyler Locklear 3B,1B |
Locklear (hand) has gone 2-for-5 with two walks, a stolen base and an RBI in two games since being reinstated from High-A Everett's 7-day injured list Friday. |
| 2023/08/08 |
Ryder Ryan SP |
Seattle recalled Ryan from Triple-A Tacoma on Tuesday. |
| 2023/08/04 |
Kolten Wong 2B |
Wong passed through waivers unclaimed and was released by the Mariners on Friday. |
| 2023/08/01 |
Eduard Bazardo RP |
The Baltimore Orioles traded RHP Eduard Bazardo to the Seattle Mariners. |
| 2023/08/01 |
Logan Rinehart P |
Rinehart was traded from the Mariners to the Orioles on Tuesday in exchange for Eduard Bazardo, Robert Murray of FanSided.com reports. |
| 2023/08/01 |
Juan Then SP |
The Mariners optioned Then to Triple-A Tacoma on Tuesday. |
| 2023/08/01 |
Trent Thornton RP |
The Mariners recalled Thornton from Triple-A Tacoma on Tuesday |
| 2023/08/01 |
Taylor Trammell RF |
Trammell was optioned to Triple-A Tacoma on Tuesday. |
| 2023/08/01 |
Kolten Wong 2B |
Wong was designated for assignment by the Mariners on Tuesday. |
| 2023/07/31 |
Ryan Bliss SS |
The Arizona Diamondbacks traded INF Ryan Bliss to the Seattle Mariners. |
| 2023/07/31 |
Ryan Bliss SS |
Bliss was traded from the Diamondbacks to the Mariners on Monday along with Dominic Canzone and Josh Rojas in exchange for Paul Sewald, Nick Piecoro of The Arizona Republic reports. |
| 2023/07/31 |
Dominic Canzone CF,RF |
The Arizona Diamondbacks traded OF Dominic Canzone to the Seattle Mariners. |
| 2023/07/31 |
Dominic Canzone CF,RF |
Canzone was traded from the Diamondbacks to the Mariners on Monday along with Josh Rojas and Ryan Bliss in exchange for Paul Sewald, Nick Piecoro of The Arizona Republic reports. |
| 2023/07/31 |
Josh Rojas 3B |
The Arizona Diamondbacks traded INF Josh Rojas to the Seattle Mariners. |
| 2023/07/31 |
Josh Rojas 3B |
Rojas was traded from the Diamondbacks to the Mariners on Monday along with Dominic Canzone and Ryan Bliss in exchange for Paul Sewald, Nick Piecoro of The Arizona Republic reports. |
| 2023/07/31 |
Paul Sewald RP |
The Mariners traded Sewald to the Diamondbacks on Monday in exchange for Dominic Canzone, Josh Rojas and Ryan Bliss, Nick Piecoro of The Arizona Republic reports. |
| 2023/07/31 |
Juan Then SP |
The Mariners recalled Then from Triple-A Tacoma on Monday. |
| 2023/07/26 |
Trent Thornton RP |
The Toronto Blue Jays traded RHP Trent Thornton to the Seattle Mariners. |
| 2023/07/26 |
Trent Thornton RP |
The Mariners acquired Thornton from the Blue Jays on Wednesday in exchange for Mason McCoy, Jeff Passan of ESPN.com reports. |
| 2023/07/25 |
Marcus Wilson CF |
The Red Sox released Wilson on Tuesday, Katie Morrison-O'Day of The Springfield Republican reports. |
| 2023/07/22 |
Prelander Berroa RP,SP |
Berroa was optioned to Double-A Arkansas on Saturday, Daniel Kramer of MLB.com reports. |
| 2023/07/22 |
Isaiah Campbell SP |
Campbell was recalled from Double-A Arkansas on Saturday, Daniel Kramer of MLB.com reports. |
| 2023/07/22 |
Taylor Trammell RF |
Trammell was recalled from Triple-A Tacoma on Saturday, Daniel Kramer of MLB.com reports. |
| 2023/07/20 |
Cade Marlowe LF |
Marlowe was recalled from Triple-A Tacoma on Thursday, Ryan Divish of The Seattle Times reports. |
| 2023/07/19 |
Ty Adcock P |
Adcock was optioned to Double-A Arkansas on Wednesday, Ryan Divish of The Seattle Times reports. |
| 2023/07/19 |
Prelander Berroa RP,SP |
Berroa was recalled from Double-A Arkansas on Wednesday, Ryan Divish of The Seattle Times reports. |
| 2023/07/19 |
Isaiah Campbell SP |
Campbell was optioned to Double-A Arkansas on Wednesday, Ryan Divish of The Seattle Times reports. |
| 2023/07/19 |
Devin Sweet SP |
The Mariners purchased Sweet's contract from Double-A Arkansas on Wednesday, Ryan Divish of The Seattle Times reports. |
| 2023/07/18 |
Forrest Wall CF |
Atlanta selected Wall's contract from Triple-A Gwinnett on Tuesday. |
| 2023/07/17 |
Gabriel Gonzalez CF |
Gonzalez is 5-for-13 with one home run, one double and six RBI in three games since getting promoted to High-A Everett. |
| 2023/07/16 |
Matt Festa RP |
The Mariners optioned Festa to Triple-A Tacoma on Sunday, Ryan Divish of The Seattle Times reports. |
| 2023/07/16 |
Bryce Miller SP |
The Mariners reinstated Miller (finger) from the 15-day injured list Sunday, Ryan Divish of The Seattle Times reports. |
| 2023/07/13 |
Tommy Milone RP,SP |
The Mariners sent Milone outright to Triple-A Tacoma on Thursday. |
| 2023/07/12 |
Adam Oller RP,SP |
Seattle claimed Oller off waivers from the Athletics on Wednesday, Jessica Kleinschmidt of TheComeback.com reports. |
| 2023/07/07 |
Jose Rodriguez RP |
Rodriguez was outrighted Friday to Triple-A Tacoma, Ryan Divish of The Seattle Times reports. |
| 2023/07/06 |
Isaiah Campbell SP |
Campbell was recalled from Double-A Arkansas on Thursday, Ryan Divish of The Seattle Times reports. |
| 2023/07/06 |
Tommy Milone RP,SP |
Milone was designated for assignment by the Mariners on Thursday, Ryan Divish of The Seattle Times reports. |
| 2023/07/05 |
Darren McCaughan RP |
The Mariners optioned McCaughan to Triple-A Tacoma on Wednesday. |
| 2023/07/05 |
Tommy Milone RP,SP |
The Mariners selected Milone's contract from Triple-A Tacoma on Wednesday. |
| 2023/07/03 |
Matt Festa RP |
Festa was called up to the Mariners from Triple-A Tacoma on Monday, Ryan Divish of The Seattle Times reports. |
| 2023/07/03 |
Chris Flexen SP |
The Mets acquired Flexen and right-hander Trevor Gott from the Mariners on Monday in exchange for left-hander Zach Muckenhirn, Ken Rosenthal of The Athletic reports. |
| 2023/07/03 |
Darren McCaughan RP |
McCaughan was recalled from Triple-A Tacoma on Monday, Ryan Divish of The Seattle Times reports. |
| 2023/07/03 |
Zach Muckenhirn SP,P |
The New York Mets traded LHP Zach Muckenhirn to the Seattle Mariners. |
| 2023/07/02 |
Mark Mathias 2B |
The Mariners claimed Mathias off waivers from the Pirates on Sunday and optioned him to Triple-A Tacoma. |
| 2023/06/27 |
Chris Flexen SP |
Flexen was designated for assignment by the Mariners on Tuesday. |
| 2023/06/27 |
Trevor Gott RP |
Seattle activated Gott (back) from the 15-day injured list Tuesday. |
| 2023/06/27 |
Matt Koch RP |
Colorado selected Koch's contract from Triple-A Albuquerque on Tuesday. |
| 2023/06/24 |
Michael Arroyo SS |
Arroyo is hitting .361 with one home run, six doubles and a 3:6 K:BB in nine games with Single-A Modesto. |
| 2023/06/15 |
Kean Wong 2B |
Wong was traded from the Mariners to the White Sox on Thursday, Mike Curto of the Tacoma Rainiers broadcast team reports. |
| 2023/06/12 |
Ty Adcock P |
The Mariners selected Adcock from Double-A Arkansas on Monday, Shannon Drayer of Seattle Sports 710 AM reports. |
| 2023/06/09 |
Matt Festa RP |
The Mariners optioned Festa to Triple-A Tacoma on Friday. |
| 2023/06/09 |
Penn Murfee RP |
Seattle activated Murfee (elbow) from the 15-day injured list Friday. |
| 2023/06/06 |
Sam Haggerty RF |
Haggerty was optioned to Triple-A Tacoma on Tuesday. |
| 2023/06/06 |
Dylan Moore 2B,LF |
The Mariners reinstated Moore (oblique) from the 10-day injured list Tuesday. |
| 2023/06/06 |
Andres Munoz RP |
Munoz (shoulder) was reinstated from the 15-day injured list Tuesday. |
| 2023/06/03 |
Ryder Ryan SP |
The Mariners released Ryan on Saturday, Jon Heyman of the New York Post reports. |
| 2023/06/03 |
Bryan Woo RP |
Seattle selected Woo's contract from Double-A Arkansas on Saturday. |
| 2023/06/02 |
Mike Ford 1B |
Seattle selected Ford's contract from Triple-A Tacoma on Friday. |
| 2023/06/01 |
Mike Ford 1B |
Ford has exercised the opt-out clause in his minor-league contract with the Mariners, Mark Feinsand of MLB.com reports. |
| 2023/06/01 |
Cesar Hernandez 2B |
Hernandez opted out of his minor-league contract with the Mariners on Thursday, Jon Heyman of the New York Post reports. |
| 2023/06/01 |
Taylor Trammell RF |
Seattle optioned Trammell to Triple-A Tacoma on Thursday, Ryan Divish of The Seattle Times reports. |
| 2023/05/31 |
Matt Festa RP |
Seattle recalled Festa from Triple-A Tacoma on Wednesday, Ryan Divish of The Seattle Times reports. |
| 2023/05/31 |
Darren McCaughan RP |
The Mariners optioned McCaughan to Triple-A Tacoma on Wednesday, Ryan Divish of The Seattle Times reports. |
| 2023/05/30 |
Darren McCaughan RP |
Seattle recalled McCaughan from Triple-A Tacoma on Tuesday. |
| 2023/05/30 |
Juan Then SP |
Seattle optioned Then to Triple-A Tacoma on Tuesday. |
| 2023/05/18 |
Jonatan Clase CF |
Clase is hitting .217 with one home run, 10 steals and a 31.5 percent strikeout rate in 12 games since getting promoted to Double-A Arkansas. |
| 2023/05/15 |
Fernando Abad RP |
The Rockies selected Abad's contract from Triple-A Albuquerque on Monday, Danielle Allentuck of The Denver Gazette reports. |
| 2023/05/12 |
Justus Sheffield RP |
Sheffield signed a minor-league contract with Atlanta on May 4. |
| 2023/05/06 |
Juan Then SP |
The Mariners recalled Then from Double-A Arkansas on Saturday, Ryan Divish of The Seattle Times reports. |
| 2023/05/04 |
Tommy La Stella DH |
La Stella was released by the Mariners on Thursday. |
| 2023/05/02 |
Tommy La Stella DH |
The Mariners designated La Stella for assignment Tuesday, Sonja Chen of MLB.com reports. |
| 2023/05/02 |
Bryce Miller SP |
Seattle selected the contract of Miller from Double-A Arkansas on Tuesday, Sonja Chen of MLB.com reports. |
| 2023/05/01 |
Diego Castillo RP |
The Mariners outrighted Castillo to Triple-A Tacoma on Monday after he cleared waivers. |
| 2023/04/30 |
Taylor Trammell RF |
The Mariners reinstated Trammell (hand) from the 10-day injured list Sunday, Corey Brock of The Athletic reports. He'll start in left field and bat sixth in the Mariners' series finale in Toronto. |
| 2023/04/29 |
Diego Castillo RP |
Castillo was optioned Saturday to Triple-A Tacoma. |
| 2023/04/29 |
Easton McGee SP |
McGee was recalled from Triple-A Tacoma and will start for the Mariners on Saturday in Toronto. |
| 2023/04/27 |
Justus Sheffield RP |
Sheffield was released by the Mariners on Thursday, Mike Curto of the Tacoma Rainiers' broadcast team reports. |
