| | | Saturday, August 2nd, 1975 | | Placed 2B Mark Livingston on the 15-day disabled list. |
| Thursday, July 17th, 1975 | | Activated CF Clifford Ware from the disabled list. |
| Tuesday, July 8th, 1975 | | Placed LF Joe Abraham on the 15-day disabled list. |
| Friday, June 27th, 1975 | | Activated 2B Mark Livingston from the disabled list. |
| Wednesday, June 25th, 1975 | | Placed CF Clifford Ware on the 15-day disabled list. |
| Sunday, June 15th, 1975 | | Drafted SP Dave Pruitt in the 1975 first-year player draft (Round 8, Pick 14, 161st overall pick). | | Drafted CF Lloyd Bunch in the 1975 first-year player draft (Round 9, Pick 14, 181st overall pick). | | Drafted MR Dominic Byrd in the 1975 first-year player draft (Round 10, Pick 14, 201st overall pick). | | Promoted 2B George Hairston to Double A Harlingen. |
| Friday, May 30th, 1975 | | Placed 2B Mark Livingston on the 15-day disabled list. |
| Tuesday, May 27th, 1975 | | Activated CF Clifford Ware from the disabled list. |
| Sunday, May 25th, 1975 | | Activated SP Tom Vaughan from the disabled list. |
| Wednesday, May 7th, 1975 | | Activated 3B Roy Wilcox from the disabled list. | | Placed SP Tom Vaughan on the 15-day disabled list. |
| Saturday, May 3rd, 1975 | | Placed CF Clifford Ware on the 15-day disabled list. |
| Tuesday, April 22nd, 1975 | | Placed 3B Roy Wilcox on the 15-day disabled list. |
| Thursday, October 10th, 1974 | | Activated SP Adrián Alejo from the disabled list. |
| Friday, September 13th, 1974 | | Activated 3B Roy Wilcox from the disabled list. |
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