| 
	
		| Monday, September 22nd , 2025 |  
		| Placed 1B Dan Bradley on the 10-day injured list, retroactive to 09/21/2025. |  
		| Purchased the contract of SP Tomás Mendoza from Triple A Toledo. |  
	
		| Tuesday, September 9th , 2025 |  
		| Failed to sign 2nd round draft pick Vern Schmidt. Received additional pick compensation. |  
	
		| Friday, September 5th , 2025 |  
		| RP Norm Strickland was designated for assignment and placed on waivers. |  
	
		| Sunday, August 31st , 2025 |  
		| Placed SP Tomás Mendoza on the 15-day injured list, retroactive to 08/30/2025. |  
	
		| Tuesday, August 19th , 2025 |  
		| Placed LF Breyvic Valera on the 10-day injured list, retroactive to 08/18/2025. |  
		| Purchased the contract of SP Oscar Ellis from Triple A Toledo. |  
	
		| Monday, July 28th , 2025 |  
		| Signed Manny Romero to a minor league contract with a signing bonus of $350,000. |  
	
		| Friday, July 25th , 2025 |  
		| Signed Thad Kennedy to a minor league contract with a signing bonus of $800,000. |  
	
		| Wednesday, July 23rd , 2025 |  
		| Signed Jim Smith to a minor league contract with a signing bonus of $750,000. |  
		| Assigned SS Jim Smith to Rookie League Detroit (GCL). |  
	
		| Tuesday, June 17th , 2025 |  
		| Signed Hitting Coach Hisashi Iwata to a 5-year contract extension. |  
	
		| Wednesday, June 4th , 2025 |  
		| Received former Rule 5 draft pick 1B Joey Gallo from the Los Angeles Angels. |  
	
		| Monday, April 7th , 2025 |  
		| Placed LF António Peña on the 15-day injured list, retroactive to 04/06/2025. |  
		| Purchased the contract of SP Jon Dwight from Triple A Toledo. |  
	
		| Tuesday, April 1st , 2025 |  
		| Signed Assistant GM Francisco Cabrera to a 1-year, $700,000 per year contract. |  
		| Received former Rule 5 draft pick SP Stu Palmer from the Oakland Athletics. |  
	
		| Monday, March 24th , 2025 |  
		| Sent SP Jon Dwight to Triple A Toledo for injury rehab. |  
	
		| Thursday, March 20th , 2025 |  
		| SP Rusty Stevenson was designated for assignment and placed on waivers. |  
	
		| Sunday, March 9th , 2025 |  
		| Placed SP Jon Dwight on the 15-day injured list, retroactive to 03/06/2025. |  
		| Invited non-roster SS Kevin Moon to Spring Training camp. |  
	
		| Wednesday, December 25th , 2024 |  
		| Received former Rule 5 draft pick 2B Jim Bruce from the Colorado Rockies. |  
	
		| Tuesday, December 3rd , 2024 |  
		| Placed SS Dan Jackson on the active roster. |  
		| Activated SS Dan Jackson from the injured list. |  
	
		| Monday, December 2nd , 2024 |  
		| SS Dan Jackson received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| RP Jose Quijada received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| 2B Jimmy O'Molloy received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SS Luis Guillorme received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| RF Bradley Zimmer becomes a free-agent. |  
		| RP Tomás Mendoza received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Jon Dwight received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| RP Hugh Owens received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Blake Snell becomes a free-agent. |  
		| 1B Dan Bradley received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| CF Raúl González received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Stu Ladnier received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| LF António Peña received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| 2B José Navarro received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Luis Muñóz received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| LF Tad Johnson received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| RP Norm Strickland received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Cam Adkins received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| 3B Al O'Mullan received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Kevin Clark received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Touki Toussaint becomes a free-agent. |  
		| RF Alfredo Robles received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Josh Hamilton received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| SP Rusty Stevenson received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| CF Randy González received a 1-year contract through automatic renewal worth a total of $640,000. |  
		| CF Jimmy Hoffman received a 1-year contract through automatic renewal worth a total of $640,000. |  
	
		| Saturday, November 30th , 2024 |  
		| RF Bradley Zimmer rejected the qualifying offer |  
		| LF Champ Stuart was not offered arbitration, becomes a free agent. |  
		| RP Andres Sanchez was not offered arbitration, becomes a free agent. |  
		| CF Johan Sala received a 1-year contract through arbitration worth a total of $2,800,000. |  
		| SS Orlando Arcia received a 1-year contract through arbitration worth a total of $16,250,000. |  
	
		| Tuesday, November 26th , 2024 |  
		| Signed C Johandry Cortez to a 1-year contract extension worth a total of $2,400,000. |  
	
		| Saturday, November 23rd , 2024 |  
		| Signed LF Breyvic Valera to a 1-year contract extension worth a total of $2,000,000. |  
	
		| Wednesday, November 20th , 2024 |  
		| Signed Pitching Coach Christopher Thomas to a 3-year, $850,000 per year contract. |  
	
		| Tuesday, November 19th , 2024 |  
		| Signed C Devon Fisher to a 1-year contract extension worth a total of $1,100,000. |  
	
		| Sunday, November 17th , 2024 |  
		| Signed CL Clarence Rice to a 1-year contract extension worth a total of $1,000,000. |  
		| Signed SP Jonathon Carroll to a 1-year contract extension worth a total of $9,500,000. |  
		| Signed C Austin Hedges to a 3-year contract extension worth a total of $3,670,000. |  
	
		| Monday, November 11th , 2024 |  
		| Signed Manager Robert Carson to a 5-year, $1,000,000 per year contract. |  
		| Signed Scouting Director Kyle Lobstein to a 4-year, $880,000 per year contract. |  
	
		| Friday, November 8th , 2024 |  
		| C Austin Hedges has failed to meet the vesting criteria in his contract. |  
		| Manager Ray Hayward retires. |  
		| Assistant GM Theo Epstein leaves the team, his contract was not renewed |  
		| Scouting Director John Mozeliak leaves the team, his contract was not renewed |  
		| Pitching Coach Brett Cecil leaves the team, his contract was not renewed |  |