| | | Friday, August 9th, 1912 | | Signed Bob Shawkey to a minor league contract with a signing bonus of $2,387. |
| Wednesday, August 7th, 1912 | | Signed Jeff Tesreau to a minor league contract with a signing bonus of $1,750. | | Signed Wheezer Dell to a minor league contract with a signing bonus of $250. |
| Monday, August 5th, 1912 | | Signed Larry Holloway to a minor league contract with a signing bonus of $220. |
| Friday, August 2nd, 1912 | | Signed Walt Leverenz to a minor league contract with a signing bonus of $810. | | Signed Manuel Dávila to a minor league contract with a signing bonus of $190. |
| Monday, July 29th, 1912 | | Signed Jim Thorpe to a minor league contract with a signing bonus of $240. |
| Saturday, June 15th, 1912 | | Drafted SP Doc Watson in the 1912 first-year player draft (Round 1, Pick 21, 21st overall pick). | | Drafted SP Bob Shawkey in the 1912 first-year player draft (Supplemental Round 1, Pick 8, 33rd overall pick). | | Drafted SP Jeff Tesreau in the 1912 first-year player draft (Round 2, Pick 21, 58th overall pick). | | Drafted SP Walt Leverenz in the 1912 first-year player draft (Round 3, Pick 18, 81st overall pick). | | Drafted SP Wheezer Dell in the 1912 first-year player draft (Round 4, Pick 18, 103rd overall pick). | | Drafted 3B Larry Holloway in the 1912 first-year player draft (Round 4, Pick 21, 106th overall pick). | | Drafted RF Jim Thorpe in the 1912 first-year player draft (Round 5, Pick 20, 127th overall pick). | | Drafted SP Manuel Dávila in the 1912 first-year player draft (Round 5, Pick 24, 131st overall pick). | | Drafted MR Dick Robertson in the 1912 first-year player draft (Round 6, Pick 13, 144th overall pick). | | Drafted SP Claudio Gonzáles in the 1912 first-year player draft (Round 7, Pick 13, 160th overall pick). | | Drafted MR John Kimball in the 1912 first-year player draft (Round 8, Pick 13, 176th overall pick). | | Drafted SP Leon Rice in the 1912 first-year player draft (Round 9, Pick 13, 192nd overall pick). | | Drafted MR Lefty Gervais in the 1912 first-year player draft (Round 10, Pick 13, 208th overall pick). | | Drafted CL Alonso Delgado in the 1912 first-year player draft (Round 11, Pick 13, 224th overall pick). | | Drafted MR Glenn Bean in the 1912 first-year player draft (Round 12, Pick 13, 240th overall pick). | | Drafted CL Chris Perkins in the 1912 first-year player draft (Round 13, Pick 13, 256th overall pick). | | Drafted MR Craig Seals in the 1912 first-year player draft (Round 14, Pick 13, 272nd overall pick). | | Drafted MR Jon Poole in the 1912 first-year player draft (Round 15, Pick 13, 288th overall pick). | | Drafted MR Bill Colbert in the 1912 first-year player draft (Round 16, Pick 13, 304th overall pick). | | Drafted MR Ze-min Sun in the 1912 first-year player draft (Round 17, Pick 13, 320th overall pick). | | Drafted MR Armando Aranda in the 1912 first-year player draft (Round 18, Pick 13, 336th overall pick). | | Drafted MR Craig Brown in the 1912 first-year player draft (Round 19, Pick 13, 352nd overall pick). | | Drafted RF Mike Korn in the 1912 first-year player draft (Round 20, Pick 13, 368th overall pick). | | Drafted LF Erik Davis in the 1912 first-year player draft (Round 21, Pick 13, 384th overall pick). | | Drafted RF Salvador Hernández in the 1912 first-year player draft (Round 22, Pick 13, 400th overall pick). | | Drafted 2B Joe Gedeon in the 1912 first-year player draft (Round 23, Pick 13, 416th overall pick). | | Drafted RF Carlos Estrada in the 1912 first-year player draft (Round 24, Pick 13, 432nd overall pick). | | Drafted CF Rafael Cintrón in the 1912 first-year player draft (Round 25, Pick 13, 448th overall pick). |
| Thursday, November 16th, 1911 | | MR Sam Leever becomes a free-agent. | | SP Frank Barberich received a 1-year contract through automatic renewal worth a total of $990. | | SP Jack Bracken becomes a free-agent. | | SS Ed Holly received a 1-year contract through automatic renewal worth a total of $833. | | 2B Morrie Rath received a 1-year contract through automatic renewal worth a total of $990. | | CF Herbie Moran received a 1-year contract through automatic renewal worth a total of $990. | | C Mike Simon received a 1-year contract through automatic renewal worth a total of $990. | | 1B Chick Gandil received a 1-year contract through automatic renewal worth a total of $990. | | SS Roger Peckinpaugh received a 1-year contract through automatic renewal worth a total of $990. | | SP Al Mattern received a 1-year contract through automatic renewal worth a total of $833. | | SP Frank Hershey received a 1-year contract through automatic renewal worth a total of $833. | | SP Joseph Myers received a 1-year contract through automatic renewal worth a total of $1,435. | | RF Frank Jude becomes a free-agent. | | CF John Farrell becomes a free-agent. |
| Monday, November 13th, 1911 | | 1B Doc Johnston received a 1-year contract through arbitration worth a total of $1,250. | | SP Lou Polchow received a 1-year contract through arbitration worth a total of $1,613. | | C Bill Carrigan received a 1-year contract through arbitration worth a total of $4,000. | | LF Ward Miller received a 1-year contract through arbitration worth a total of $2,149. | | 1B Larry McLean becomes a free-agent. | | 2B Heinie Zimmerman received a 1-year contract through arbitration worth a total of $7,000. | | CF Amos Strunk received a 1-year contract through arbitration worth a total of $2,100. | | RF Johnny Lush becomes a free-agent. | | 3B Jack Hannifin becomes a free-agent. | | CF Johnny Bates received a 1-year contract through arbitration worth a total of $7,000. |
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