| | | Sunday, August 19th, 1973 | | Activated MR Jim Cochran from the disabled list. |
| Monday, July 2nd, 1973 | | Placed SS Paul Stephens on the 15-day disabled list. |
| Friday, June 15th, 1973 | | Promoted 1B Pat Roberts to Double A Harlingen. | | Promoted SP John Wilson to Double A Harlingen. | | Promoted 1B Ricardo Cruz to Double A Harlingen. | | Received MR Miguel Angel Vélez from Double A Harlingen. | | Received 1B Pat Roberts from Double A Harlingen. | | Promoted CF Domingo Aguilar to Double A Harlingen. | | Received 1B John Hillock from Triple A Brantford. | | Received 2B Milton Graham from Double A Harlingen. | | Drafted SP Tom Vaughan in the 1973 first-year player draft (Round 6, Pick 18, 112nd overall pick). | | Drafted CF Clifford Ware in the 1973 first-year player draft (Round 7, Pick 18, 131st overall pick). | | Drafted LF Joe Abraham in the 1973 first-year player draft (Round 8, Pick 18, 149th overall pick). | | Drafted RF Pepillo Zavala in the 1973 first-year player draft (Round 9, Pick 18, 167th overall pick). | | Drafted MR Jimmy Yoder in the 1973 first-year player draft (Round 10, Pick 18, 185th overall pick). | | Promoted 2B Pat O'Quinn to Double A Harlingen. | | Received CF Jeremiah Brown from Double A Harlingen. |
| Tuesday, October 24th, 1972 | | Activated SP Adrián Alejo from the disabled list. |
| Monday, October 9th, 1972 | | Activated C Darby Bates from the disabled list. |
| Wednesday, August 30th, 1972 | | Activated SP Iván López from the disabled list. |
| Saturday, August 26th, 1972 | | Manager Chris Richards leaves the team, his contract was not renewed. |
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