| | | Friday, August 16th, 1974 | | Activated SP Brent Kelley from the disabled list. |
| Saturday, August 3rd, 1974 | | Placed SS Jesús Nieves on the 15-day disabled list. |
| Monday, June 24th, 1974 | | Placed SP Brent Kelley on the 15-day disabled list. |
| Saturday, June 15th, 1974 | | Promoted SP Ricciardo Nicoletti to Double A Corpus Christi. | | Promoted 3B Paul Harrell to Double A Corpus Christi. | | Received SP Allen Harris from Double A Corpus Christi. | | Received 3B Vince Wiggins from Double A Corpus Christi. | | Drafted LF Juan García in the 1974 first-year player draft (Round 7, Pick 10, 132nd overall pick). | | Drafted MR Michael Holley in the 1974 first-year player draft (Round 8, Pick 10, 152nd overall pick). | | Drafted MR Steve Curtis in the 1974 first-year player draft (Round 9, Pick 10, 172nd overall pick). | | Drafted MR Kendrick Maxwell in the 1974 first-year player draft (Round 10, Pick 10, 192nd overall pick). | | Promoted MR Derrick Clarke to Double A Corpus Christi. | | Promoted 1B Yoshimasa Sasaki to Double A Corpus Christi. | | Received MR Ricciardo Nicoletti from Double A Corpus Christi. | | Received 3B Paul Harrell from Double A Corpus Christi. |
| Wednesday, May 22nd, 1974 | | Activated RF Jonathan Gates from the disabled list. |
| Saturday, May 4th, 1974 | | Placed RF Jonathan Gates on the 15-day disabled list. |
| Friday, November 30th, 1973 | | Activated SP Brent Kelley from the disabled list. |
| Friday, November 2nd, 1973 | | Activated MR Pedro Alemán from the disabled list. |
| Wednesday, September 19th, 1973 | | Activated 3B Vince Wiggins from the disabled list. | | Placed CF Carlos García on the 15-day disabled list. |
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