| Tuesday, August 19th, 1975 | Placed SP Dax Raymond on the 15-day disabled list. | Saturday, August 16th, 1975 | Placed RF Pat Graves on the 15-day disabled list. | Friday, August 15th, 1975 | Activated CF Pat Graves from the disabled list. | Friday, August 8th, 1975 | Placed 2B Bruce Reese on the 15-day disabled list. | Monday, July 21st, 1975 | Placed SP Kenny O'Conry on the 15-day disabled list. | Friday, July 4th, 1975 | Activated LF Rob Chapman from the disabled list. | Sunday, June 15th, 1975 | Drafted MR Júlio Cortéz in the 1975 first-year player draft (Round 6, Pick 18, 124th overall pick). | Drafted CF Chase O'Halloran in the 1975 first-year player draft (Round 7, Pick 18, 145th overall pick). | Drafted MR Lorenzo De La Torre in the 1975 first-year player draft (Round 8, Pick 18, 165th overall pick). | Drafted SP Enrico Costa in the 1975 first-year player draft (Round 9, Pick 18, 185th overall pick). | Drafted MR Troy Forman in the 1975 first-year player draft (Round 10, Pick 18, 205th overall pick). | Saturday, June 7th, 1975 | Placed LF Rob Chapman on the 15-day disabled list. | Saturday, April 12th, 1975 | Placed CF Pat Graves on the 15-day disabled list. | Thursday, March 13th, 1975 | Activated MR Ed Hardin from the disabled list. | Friday, February 21st, 1975 | Placed MR Ed Hardin on the 15-day disabled list. | Monday, September 30th, 1974 | 2B Vicente Lerma becomes a free-agent. | Thursday, August 22nd, 1974 | Signed Pitching Coach José Matos to a 3-year contract extension. | |
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