| 1912-01-05 | Forrest Cady | Boston Red Sox | Traded from Jersey City (International) to Boston Red Sox for Hal Janvrin, Marty McHale, Walter Lonergan, Jack Thoney, Billy Purtell and Hap Myers | MLB |
| 1912-01-05 | Hal Janvrin | | Traded from Boston Red Sox with Marty McHale, Walter Lonergan, Jack Thoney, Billy Purtell and Hap Myers to Jersey City (International) for Hick Cady | MLB |
| 1912-01-05 | Marty McHale | | Traded from Boston Red Sox with Hal Janvrin, Walter Lonergan, Jack Thoney, Billy Purtell and Hap Myers to Jersey City (International) for Hick Cady | MLB |
| 1912-01-05 | Walter Lonergan | | Traded from Boston Red Sox with Hal Janvrin, Marty McHale, Jack Thoney, Billy Purtell and Hap Myers to Jersey City (International) for Hick Cady | MLB |
| 1912-01-05 | Jack Thoney | | Traded from Boston Red Sox with Hal Janvrin, Marty McHale, Walter Lonergan, Billy Purtell and Hap Myers to Jersey City (International) for Hick Cady | MLB |
| 1912-01-05 | Billy Purtell | | Traded from Boston Red Sox with Hal Janvrin, Marty McHale, Walter Lonergan, Jack Thoney and Hap Myers to Jersey City (International) for Hick Cady | MLB |
| 1912-01-05 | Hap Myers | | Traded from Boston Red Sox with Hal Janvrin, Marty McHale, Walter Lonergan, Jack Thoney and Billy Purtell to Jersey City (International) for Hick Cady | MLB |
| 1912-02-12 | Dick Cotter | Chicago Cubs | Traded from Philadelphia Phillies with James Ward to Chicago Cubs for Peaches Graham | MLB |
| 1912-02-12 | Peaches Graham | Philadelphia Phillies | Traded from Chicago Cubs to Philadelphia Phillies for Dick Cotter and James Ward | MLB |
| 1912-02-17 | John Knight | Washington Senators I | Traded from New York Highlanders with Rip Williams to Washington Senators I for Gabby Street | MLB |
| 1912-02-17 | Vin Campbell | Boston Braves | Traded from Pittsburgh Pirates to Boston Braves for Mike Donlin | MLB |
| 1912-02-17 | Mike Donlin | Pittsburgh Pirates | Traded from Boston Braves to Pittsburgh Pirates for Vin Campbell | MLB |
| 1912-02-17 | Lefty George | Cleveland Naps | Traded from St. Louis Browns to Cleveland Naps for George Stovall | MLB |
| 1912-02-17 | George Stovall | St. Louis Browns | Traded from Cleveland Naps to St. Louis Browns for Lefty George | MLB |
| 1912-02-17 | Gabby Street | New York Highlanders | Traded from Washington Senators I to New York Highlanders for John Knight and Rip Williams (2/22/1912) | MLB |
| 1912-02-22 | Alva Williams | Washington Senators I | Traded from New York Highlanders with John Knight to Washington Senators I for Gabby Street (2/17/1912) | MLB |
| 1912-05-26 | Charlie Becker | | Traded from Washington Senators I with Jerry Akers and Bill Cunningham to Montreal (International) for Chick Gandil | MLB |
| 1912-05-26 | Chick Gandil | Washington Senators I | Traded from Montreal (International) to Washington Senators I for Jerry Akers, Charlie Becker and Bill Cunningham | MLB |
| 1912-05-26 | Bill Cunningham | | Traded from Washington Senators I with Jerry Akers and Charlie Becker to Montreal (International) for Chick Gandil | MLB |
| 1912-05-26 | Jerry Akers | | Traded from Washington Senators I with Charlie Becker and Bill Cunningham to Montreal (International) for Chick Gandil | MLB |
| 1912-05-28 | Bob Fisher | Brooklyn Dodgers | Traded from Newark (International) with Bill Kay to Brooklyn Dodgers for Dolly Stark and Bill Schardt | MLB |
| 1912-05-28 | Bill Kay | Brooklyn Dodgers | Traded from Newark (International) with Bob Fisher to Brooklyn Dodgers for Dolly Stark and Bill Schardt | MLB |
| 1912-05-28 | Dolly Stark | | Traded from Brooklyn Dodgers with Bill Schardt to Newark (International) for Bob Fisher and Bill Kay | MLB |
| 1912-05-28 | Bill Schardt | | Traded from Brooklyn Dodgers with Dolly Stark to Newark (International) for Bob Fisher and Bill Kay | MLB |
| 1912-05-30 | Tommy Leach | Chicago Cubs | Traded from Pittsburgh Pirates with Lefty Leifield to Chicago Cubs for King Cole and Solly Hofman | MLB |
| 1912-05-30 | Lefty Leifield | Chicago Cubs | Traded from Pittsburgh Pirates with Tommy Leach to Chicago Cubs for King Cole and Solly Hofman | MLB |
| 1912-05-30 | King Cole | Pittsburgh Pirates | Traded from Chicago Cubs with Solly Hofman to Pittsburgh Pirates for Tommy Leach and Lefty Leifield | MLB |
| 1912-05-30 | Solly Hofman | Pittsburgh Pirates | Traded from Chicago Cubs with King Cole to Pittsburgh Pirates for Tommy Leach and Lefty Leifield | MLB |
| 1912-06-21 | John Titus | Boston Braves | Traded from Philadelphia Phillies to Boston Braves for Doc Miller | MLB |
| 1912-06-21 | Doc Miller | Philadelphia Phillies | Traded from Boston Braves to Philadelphia Phillies for John Titus | MLB |
| 1912-06-25 | Brad Hogg | | Traded from Boston Braves to New Bedford (New England) for Rabbit Maranville | MLB |
| 1912-06-25 | Rabbit Maranville | Boston Braves | Traded from New Bedford (New England) to Boston Braves for Brad Hogg | MLB |
| 1912-06-28 | Roxey Roach | Washington Senators I | Traded from Jersey City (International) to Washington Senators I for John Knight | MLB |
| 1912-06-28 | John Knight | | Traded from Washington Senators I to Jersey City (International) for Roxey Roach | MLB |
| 1912-08-01 | Art Butler | Pittsburgh Pirates | Traded from St Paul (American Association) to Pittsburgh Pirates for Bill McKechnie | MLB |
| 1912-08-01 | Bill McKechnie | | Traded from Pittsburgh Pirates to St Paul (American Association) for Art Butler | MLB |
| 1912-08-01 | Ernie Shore | | Traded from New York Highlanders to Indianapolis (American Association) for Ted Goulait | MLB |
| 1912-08-01 | Ted Goulait | New York Highlanders | Traded from Indianapolis (American Association) to New York Highlanders for Ernie Shore | MLB |
| 1912-08-09 | Lena Blackburne | | Traded from Chicago White Sox with Bruno Block, Matty McIntyre and Mutz Ens to Milwaukee (American Association) for Ray Schalk | MLB |
| 1912-08-09 | Bruno Block | | Traded from Chicago White Sox with Lena Blackburne, Matty McIntyre and Mutz Ens to Milwaukee (American Association) for Ray Schalk | MLB |
| 1912-08-09 | Ray Schalk | Chicago White Sox | Traded from Milwaukee (American Association) to Chicago White Sox for Lena Blackburne, Bruno Block, Matty McIntyre (8/24/1912) and Mutz Ens (1/30/1913) | MLB |
| 1912-08-10 | Babe Danzig | | Traded from St. Louis Browns with Elmer Brown to Montgomery (Southern Association) for Johnny Johnston, Bill McAllester and Buzzy Wares | MLB |
| 1912-08-10 | Johnny Johnston | St. Louis Browns | Traded from Montgomery (Southern Association) with Bill McAllester and Buzzy Wares to St. Louis Browns for Elmer Brown and Babe Danzig | MLB |
| 1912-08-10 | Bill McAllester | St. Louis Browns | Traded from Montgomery (Southern Association) with Johnny Johnston and Buzzy Wares to St. Louis Browns for Elmer Brown and Babe Danzig | MLB |
| 1912-08-10 | Clyde Wares | St. Louis Browns | Traded from Montgomery (Southern Association) with Johnny Johnston and Bill McAllester to St. Louis Browns for Elmer Brown and Babe Danzig | MLB |
| 1912-08-10 | Elmer Brown | | Traded from St. Louis Browns with Babe Danzig to Montgomery (Southern Association) for Johnny Johnston, Bill McAllester and Buzzy Wares | MLB |
| 1912-08-12 | Tommy McMillan | New York Highlanders | Traded from Rochester (International) to New York Highlanders for Jack Quinn and Jack Martin | MLB |
| 1912-08-12 | Jack Quinn | | Traded from New York Highlanders with Jack Martin to Rochester (International) for Tommy McMillan | MLB |
| 1912-08-12 | Jack Martin | | Traded from New York Highlanders with Jack Quinn to Rochester (International) for Tommy McMillan | MLB |
| 1912-08-12 | Nick Cullop | | Traded from Cleveland Naps with Jack Mills and Leo Angermeier to New Orleans (Southern Association) for Doc Johnston | MLB |
| 1912-08-12 | Doc Johnston | Cleveland Naps | Traded from New Orleans (Southern Association) to Cleveland Naps for Nick Cullop, Jack Mills and Leo Angermeier | MLB |
| 1912-08-12 | Jack Mills | | Traded from Cleveland Naps with Nick Cullop and Leo Angermeier to New Orleans (Southern Association) for Doc Johnston | MLB |
| 1912-08-20 | Enos Kirkpatrick | Brooklyn Dodgers | Traded from Newark (International) to Brooklyn Dodgers for Bert Tooley | MLB |
| 1912-08-20 | Bert Tooley | | Traded from Brooklyn Dodgers to Newark (International) for Enos Kirkpatrick | MLB |
| 1912-08-23 | Jack Lelivelt | New York Highlanders | Traded from Rochester (International) to New York Highlanders for Guy Zinn and Klondike Smith (8/28/1912) | MLB |
| 1912-08-23 | Guy Zinn | | Traded from New York Highlanders with Klondike Smith to Rochester (International) for Jack Lelivelt | MLB |
| 1912-08-23 | Bert Gallia | Washington Senators I | Traded from Kansas City (American Association) with Bill Kenworthy to Washington Senators I for Tilly Walker and Hippo Vaughn | MLB |
| 1912-08-23 | Duke Kenworthy | Washington Senators I | Traded from Kansas City (American Association) with Bert Gallia to Washington Senators I for Tilly Walker and Hippo Vaughn | MLB |
| 1912-08-23 | Tilly Walker | | Traded from Washington Senators I with Hippo Vaughn to Kansas City (American Association) for Bert Gallia and Bill Kenworthy | MLB |
| 1912-08-23 | Hippo Vaughn | | Traded from Washington Senators I with Tilly Walker to Kansas City (American Association) for Bert Gallia and Bill Kenworthy | MLB |
| 1912-08-24 | Bris Lord | | Traded from Philadelphia Athletics with Claud Derrick and Ben Egan to Baltimore (International) for Jimmy Walsh and Eddie Murphy | MLB |
| 1912-08-24 | Claud Derrick | | Traded from Philadelphia Athletics with Bris Lord and Ben Egan to Baltimore (International) for Jimmy Walsh and Eddie Murphy | MLB |
| 1912-08-24 | Jimmy Walsh | Philadelphia Athletics | Traded from Baltimore (International) with Eddie Murphy to Philadelphia Athletics for Bris Lord, Claud Derrick and Ben Egan (4/16/1913) | MLB |
| 1912-08-24 | Eddie Murphy | Philadelphia Athletics | Traded from Baltimore (International) with Jimmy Walsh to Philadelphia Athletics for Bris Lord, Claud Derrick and Ben Egan (4/16/1913) | MLB |
| 1912-08-24 | Matty McIntyre | | Traded from Chicago White Sox with Lena Blackburne, Bruno Block and Mutz Ens to Milwaukee (American Association) for Ray Schalk (8/9/1912) | MLB |
| 1912-08-25 | Wilbur Cooper | Pittsburgh Pirates | Traded from Columbus (American Association) to Pittsburgh Pirates | MLB |
| 1912-09-18 | Red McKee | Detroit Tigers | Traded from New York Highlanders to Detroit Tigers for Claud Derrick | MLB |
| 1912-09-18 | Claud Derrick | New York Highlanders | Traded from Detroit Tigers to New York Highlanders for Red McKee | MLB |
| 1912-12-01 | Benny Meyer | Brooklyn Dodgers | Traded from Toronto (International) to Brooklyn Dodgers for Hub Northen | MLB |
| 1912-12-01 | Hub Northen | | Traded from Brooklyn Dodgers to Toronto (International) for Benny Meyer | MLB |
| 1912-12-15 | Art Phelan | Chicago Cubs | Traded from Cincinnati Reds with Bert Humphries, Red Corriden, Pete Knisely and Mike Mitchell to Chicago Cubs for Joe Tinker, Grover Lowdermilk and Harry Chapman | MLB |
| 1912-12-15 | Mike Mitchell | Chicago Cubs | Traded from Cincinnati Reds with Bert Humphries, Red Corriden, Pete Knisely and Art Phelan to Chicago Cubs for Joe Tinker, Grover Lowdermilk and Harry Chapman (no draft record) | MLB |
| 1912-12-15 | Joe Tinker | Cincinnati Reds | Traded from Chicago Cubs with Grover Lowdermilk and Harry Chapman to Cincinnati Reds for Bert Humphries, Red Corriden, Pete Knisely, Art Phelan and Mike Mitchell | MLB |
| 1912-12-15 | Harry Chapman | Cincinnati Reds | Traded from Chicago Cubs with Joe Tinker and Grover Lowdermilk to Cincinnati Reds for Bert Humphries, Red Corriden, Pete Knisely, Art Phelan and Mike Mitchell | MLB |
| 1912-12-15 | Bert Humphries | Chicago Cubs | Traded from Cincinnati Reds with Red Corriden, Pete Knisely, Art Phelan and Mike Mitchell to Chicago Cubs for Joe Tinker, Grover Lowdermilk and Harry Chapman | MLB |
| 1912-12-15 | Red Corriden | Chicago Cubs | Traded from Cincinnati Reds with Bert Humphries, Pete Knisely, Art Phelan and Mike Mitchell to Chicago Cubs for Joe Tinker, Grover Lowdermilk and Harry Chapman | MLB |
| 1912-12-15 | Pete Knisely | Chicago Cubs | Traded from Cincinnati Reds with Bert Humphries, Red Corriden, Art Phelan and Mike Mitchell to Chicago Cubs for Joe Tinker, Grover Lowdermilk and Harry Chapman | MLB |
| 1912-12-15 | Grover Lowdermilk | Cincinnati Reds | Traded from Chicago Cubs with Joe Tinker and Harry Chapman to Cincinnati Reds for Bert Humphries, Red Corriden, Pete Knisely, Art Phelan and Mike Mitchell | MLB |
| 78 record(s) |