Transactions listed are from November 1 of previous year to April 1 of the following year.
The Philadelphia Athletics traded Charles Rowland (minors), Dennis Burns, Bob Hasty, Harry Riconda, Ed Sherling and $50,000 to Portland (PCL) for Mickey Cochrane.
The Boston Braves purchased Jimmy Welsh from Seattle (PCL).
The Boston Braves signed Joe Ogrodowski as an amateur free agent.
The New York Yankees traded Mike McNally to the Boston Red Sox for Howie Shanks.
The Washington Senators traded Doc Prothro to the Boston Red Sox for Mike McNally.
The Washington Senators traded Carr Smith and By Speece to the Cleveland Indians for Stan Coveleski.
The New York Yankees selected Steve O'Neill off waivers from the Boston Red Sox.
The Washington Senators purchased Dutch Ruether from the Brooklyn Robins.
The St. Louis Browns traded Urban Shocker to the New York Yankees for Joe Bush, Milt Gaston and Joe Giard.
The Pittsburgh Pirates signed Joe Cronin as a free agent.
The Boston Braves purchased Dave Harris from Greensburg (Pennsylvania State Associatio).
The New York Giants signed Pip Koehler as a free agent.
The Pittsburgh Pirates purchased Lou Koupal from Omaha (Western) for $40,000.
The Boston Braves signed Bill Vargus as an amateur free agent.
The Brooklyn Robins traded Bernie Neis to the Boston Braves for Cotton Tierney.
The Boston Braves released Hunter Lane.
The Boston Braves released Ray Powell.
Oakland (PCL) purchased Hub Pruett from the St. Louis Browns.
The Philadelphia Phillies selected Lew Fonseca off waivers from the Cincinnati Reds.
The Philadelphia Phillies selected George Burns off waivers from the Cincinnati Reds.
The Boston Braves released Stuffy McInnis.
The New York Giants traded Rosy Ryan to the Boston Braves for Tim McNamara.
The Brooklyn Robins selected Joe Oeschger off waivers from the Philadelphia Phillies.
The Cincinnati Reds purchased Hy Myers from the St. Louis Cardinals.
The Washington Senators traded Roy Carlyle and Paul Zahniser to the Boston Red Sox for Joe Harris.
The New York Yankees traded players to be named later, Oscar Roettger and cash to St Paul (American Association) for players to be named later and Mark Koenig. The New York Yankees sent Fred Hofmann (May 15, 1925) and Ernie Johnson (October 28, 1925) to St Paul (American Association) to complete the trade.
The Philadelphia Phillies traded Bill Hubbell to the Brooklyn Robins for Art Decatur.
The St. Louis Cardinals purchased Hy Myers from the Cincinnati Reds.
The New York Yankees traded Ray Francis and $9,000 to the Boston Red Sox for Alex Ferguson and Bobby Veach.
St Paul (American Association) purchased Curt Fullerton from the Boston Red Sox.
The Chicago Cubs traded Bob Barrett to the Brooklyn Robins for Tommy Griffith.
The Brooklyn Robins selected Hod Ford off waivers from the Philadelphia Phillies.
The Pittsburgh Pirates traded Al Niehaus to the Cincinnati Reds for Tom Sheehan.
The St. Louis Cardinals traded Howard Freigau and Mike Gonzalez to the Chicago Cubs for Bob O'Farrell.
The Pittsburgh Pirates signed Stuffy McInnis as a free agent.
Buddy Myer sent from New Orleans (Southern Association) to the Washington Senators in an unknown transaction.
The Washington Senators traded Pinky Hargrave and George Mogridge to the St. Louis Browns for Hank Severeid.
The Boston Braves signed Hod Kibbie as an amateur free agent.
The Philadelphia Phillies selected Bernie Friberg off waivers from the Chicago Cubs.
The New York Yankees purchased Fred Merkle from Rochester (International) for $6,000.
The Washington Senators selected Everett Scott off waivers from the New York Yankees.
The Boston Braves signed Shanty Hogan as an amateur free agent.
The Cincinnati Reds selected Joe Schultz off waivers from the Philadelphia Phillies.
The Cleveland Indians purchased Bert Cole from the Detroit Tigers.
The Chicago White Sox purchased Jim Joe Edwards from the Cleveland Indians.
The Cincinnati Reds selected Walter Holke off waivers from the Philadelphia Phillies.
The Boston Braves purchased Abie Hood from Portsmouth (Virginia).
The Philadelphia Athletics selected Jack Quinn off waivers from the Boston Red Sox.
The Boston Red Sox purchased John Bischoff from the Chicago White Sox.
The Boston Braves purchased Doc Gautreau from the Philadelphia Athletics.
The Boston Braves selected Andy High off waivers from the Brooklyn Robins.
The Boston Braves returned Abie Hood to Portsmouth (Virginia) following previous purchase.
The New York Yankees purchased Leo Durocher from Hartford (Eastern) for $12,000.
The New York Yankees traded players to be named later and $50,000 to Salt Lake City (PCL) for players to be named later and Tony Lazzeri. The New York Yankees sent Mack Hillis (March, 1926), Frank Zoellers (minors) (March, 1926) and Curt Fullerton (March 23, 1926) to Salt Lake City (PCL) to complete the trade.
The New York Yankees purchased Jim Marquis from St. Joseph (Western). (Date given is approximate. Exact date is uncertain.)
Toledo (American Association) traded Earl Webb to the New York Giants for Hack Wilson. The New York Giants sent Pip Koehler (February 15, 1926) to Toledo (American Association) to complete the trade.
The Washington Senators purchased Alex Ferguson from the New York Yankees.
The Washington Senators selected Bobby Veach off waivers from the New York Yankees.
The Boston Braves purchased Bunny Hearn from Bridgeport (Eastern).
The New York Yankees traded a player to be named later and $25000 and 3 players to be named to St Paul (American Association) for a player to be named later and Pat Collins. The New York Yankees sent Pee-Wee Wanninger (December 16, 1925) to St Paul (American Association) to complete the trade.
Louisville (American Association) traded Ty Tyson to the New York Giants for . The New York Giants sent Earl Webb (December 12, 1925) to Louisville (American Association) to complete the trade.
The Boston Braves purchased Ed Taylor from Albany (Eastern).
The New York Yankees traded undisclosed players to St Paul (American Association) for Herb McQuaid.
The Chicago White Sox selected Moe Berg off waivers from the Brooklyn Robins.
The Brooklyn Robins traded Eddie Brown, Jimmy Johnston and Zack Taylor to the Boston Braves for Jesse Barnes, Gus Felix and Mickey O'Neil.
The St. Louis Browns drafted Oscar Estrada from Shreveport (Texas) in the 1925 rule 5 draft.
The New York Yankees drafted Curt Fullerton from St Paul (American Association) in the 1925 rule 5 draft.
The Boston Braves drafted Harry Riconda from Portland (PCL) in the 1925 rule 5 draft.
The Chicago Cubs drafted Hack Wilson from Toledo (American Association) in the 1925 rule 5 draft.
San Francisco (PCL) sent Hal Rhyne to the Pittsburgh Pirates as part of a conditional deal.
San Francisco (PCL) sent Paul Waner to the Pittsburgh Pirates as part of a conditional deal.
The Boston Braves purchased Red Barron from Charlotte (South Atlantic). (Date given is approximate. Exact date is uncertain.)
The Brooklyn Robins selected Rabbit Maranville off waivers from the Chicago Cubs.
The Brooklyn Robins selected William Marriott off waivers from the Boston Braves.
The Detroit Tigers traded Fred Haney to the Boston Red Sox for Homer Ezzell and Tex Vache.
The St. Louis Cardinals traded Jimmy Cooney to the Chicago Cubs for Vic Keen.
The Philadelphia Athletics purchased Bill Wambsganss from the Boston Red Sox for $4,000.
The New York Yankees traded cash and players to Toronto (International) for Myles Thomas.
The New York Yankees purchased Al Mamaux from Newark (International). (Date given is approximate. Exact date is uncertain.)
The New York Yankees released Howie Shanks.
The Philadelphia Phillies traded Jimmy Ring to the New York Giants for Jack Bentley and Wayland Dean.
The St. Louis Browns selected Charlie Robertson off waivers from the Chicago White Sox.
The Detroit Tigers signed Rick Ferrell as a free agent.
The Boston Braves purchased Hal Goldsmith from Worcester (Eastern).
The Detroit Tigers purchased Carl Hubbell from Oklahoma City (Western) for $20,000.
Mobile (Southern Association) traded Dick Jones to the Washington Senators for . The Washington Senators sent Mule Shirley (February 20, 1926) to Mobile (Southern Association) to complete the trade.
The Brooklyn Robins purchased Chick Fewster from the Cleveland Indians.
The New York Giants signed Mel Ott as a free agent.
The Cincinnati Reds purchased Wally Pipp from the New York Yankees for $7,500.
The New York Yankees purchased Spencer Adams from the Washington Senators.
The Washington Senators traded Win Ballou and Tom Zachary to the St. Louis Browns for Joe Bush and Jack Tobin.
The St. Louis Browns traded George Mogridge and cash to the New York Yankees for Wally Schang.
The Cincinnati Reds purchased Val Picinich from the Boston Red Sox.
The Boston Braves selected George Mogridge off waivers from the New York Yankees.
The Chicago White Sox selected Everett Scott off waivers from the Washington Senators.
The Pittsburgh Pirates signed Lloyd Waner as a free agent.