| | | Sunday, July 28th, 1912 | | Placed SP Nick Maddox on the 60-day disabled list. |
| Monday, June 24th, 1912 | | Signed Carl Weilman to a minor league contract with a signing bonus of $630. |
| Tuesday, June 18th, 1912 | | Signed Pol Perritt to a minor league contract with a signing bonus of $1,680. |
| Saturday, June 15th, 1912 | | Placed MR Elmer Steele on the 15-day disabled list. | | Placed MR Bill Culp on the 40-man roster. | | Purchased the contract of MR Bill Culp from Double A Paradise. | | Demoted LF Rafael Franco to Triple A Oakland. | | Purchased the contract of C Gerry Shea from Double A Paradise. | | Drafted SP Doc Ayers in the 1912 first-year player draft (Round 1, Pick 5, 5th overall pick). | | Drafted SP Ralph Comstock in the 1912 first-year player draft (Round 1, Pick 6, 6th overall pick). | | Drafted SP Pol Perritt in the 1912 first-year player draft (Round 1, Pick 12, 12th overall pick). | | Drafted SP Carl Weilman in the 1912 first-year player draft (Round 2, Pick 5, 42nd overall pick). | | Drafted SP Dixie Davis in the 1912 first-year player draft (Round 2, Pick 6, 43rd overall pick). | | Drafted C Frank Snyder in the 1912 first-year player draft (Round 3, Pick 4, 67th overall pick). | | Drafted SP Frank Allen in the 1912 first-year player draft (Round 3, Pick 8, 71st overall pick). | | Drafted LF Michael Lunday in the 1912 first-year player draft (Round 4, Pick 4, 89th overall pick). | | Drafted MR Harry Trekell in the 1912 first-year player draft (Round 4, Pick 6, 91st overall pick). | | Drafted SP Orlando Camacho in the 1912 first-year player draft (Round 5, Pick 4, 111st overall pick). | | Drafted 2B Bert Niehoff in the 1912 first-year player draft (Round 5, Pick 6, 113rd overall pick). | | Drafted MR Paul Gorman in the 1912 first-year player draft (Round 6, Pick 4, 135th overall pick). | | Drafted SP Ray Stephens in the 1912 first-year player draft (Round 7, Pick 4, 151st overall pick). | | Drafted MR Joe Conzelman in the 1912 first-year player draft (Round 8, Pick 4, 167th overall pick). | | Drafted SP Jorge García in the 1912 first-year player draft (Round 9, Pick 4, 183rd overall pick). | | Drafted MR Mutt Williams in the 1912 first-year player draft (Round 10, Pick 4, 199th overall pick). | | Drafted SP Danny Jones in the 1912 first-year player draft (Round 11, Pick 4, 215th overall pick). | | Drafted CL Renato Guedelha in the 1912 first-year player draft (Round 12, Pick 4, 231st overall pick). | | Drafted MR Walt Marbet in the 1912 first-year player draft (Round 13, Pick 4, 247th overall pick). | | Drafted MR Jim Scoggins in the 1912 first-year player draft (Round 14, Pick 4, 263rd overall pick). | | Drafted MR Bull Wagner in the 1912 first-year player draft (Round 15, Pick 4, 279th overall pick). | | Drafted MR Andrew Hickman in the 1912 first-year player draft (Round 16, Pick 4, 295th overall pick). | | Drafted MR António Zavalas in the 1912 first-year player draft (Round 17, Pick 4, 311st overall pick). | | Drafted MR Noritoshi Tanaka in the 1912 first-year player draft (Round 18, Pick 4, 327th overall pick). | | Drafted MR Todd Hobbs in the 1912 first-year player draft (Round 19, Pick 4, 343rd overall pick). | | Drafted C José Alomar in the 1912 first-year player draft (Round 20, Pick 4, 359th overall pick). | | Drafted CF Jason Ross in the 1912 first-year player draft (Round 21, Pick 4, 375th overall pick). | | Drafted C Jason Rogers in the 1912 first-year player draft (Round 22, Pick 4, 391st overall pick). | | Drafted SS Adam Shaffer in the 1912 first-year player draft (Round 23, Pick 4, 407th overall pick). | | Drafted 2B Jim Robertson in the 1912 first-year player draft (Round 24, Pick 4, 423rd overall pick). | | Drafted SS Brandon Mueller in the 1912 first-year player draft (Round 25, Pick 4, 439th overall pick). |
| Friday, May 31st, 1912 | | Placed 3B Chick Lathers on the PBA Double A 15-day disabled list. |
| Thursday, November 16th, 1911 | | MR Bill Chambers received a 1-year contract through automatic renewal worth a total of $833. | | CL Harry Suter received a 1-year contract through automatic renewal worth a total of $833. | | CF Miguel Esparza received a 1-year contract through automatic renewal worth a total of $833. | | SS Cris Ramírez received a 1-year contract through automatic renewal worth a total of $833. | | MR Charlie Maloney received a 1-year contract through automatic renewal worth a total of $833. | | MR Jack Quinn received a 1-year contract through automatic renewal worth a total of $990. | | SS Esteban Vargas received a 1-year contract through automatic renewal worth a total of $833. | | C Broderick Shaw received a 1-year contract through automatic renewal worth a total of $833. | | SS Dave Altizer becomes a free-agent. | | MR John Frill received a 1-year contract through automatic renewal worth a total of $833. | | 3B Sammy Strang becomes a free-agent. | | RF David White received a 1-year contract through automatic renewal worth a total of $833. | | 2B Tony Taylor received a 1-year contract through automatic renewal worth a total of $833. | | LF Rafael Franco received a 1-year contract through automatic renewal worth a total of $833. | | SP Red Ames becomes a free-agent. | | SP Bill Popp received a 1-year contract through automatic renewal worth a total of $833. | | 3B Paul Sentell received a 1-year contract through automatic renewal worth a total of $833. | | MR Pembroke Finlayson received a 1-year contract through automatic renewal worth a total of $833. | | MR Clyde Goodwin becomes a free-agent. | | 1B Eddie Tiemeyer becomes a free-agent. |
| Monday, November 13th, 1911 | | SP Nick Maddox received a 1-year contract through arbitration worth a total of $1,272. | | MR Elmer Steele received a 1-year contract through arbitration worth a total of $4,900. | | SP Jim Scott received a 1-year contract through arbitration worth a total of $1,250. | | CF Bill O'Neill received a 1-year contract through arbitration worth a total of $1,250. | | SP Harry Krause received a 1-year contract through arbitration worth a total of $1,250. | | SP George Suggs received a 1-year contract through arbitration worth a total of $1,250. | | LF Harl Maggert becomes a free-agent. | | C Gerry Shea received a 1-year contract through arbitration worth a total of $1,485. |
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