| | | Friday, August 5th, 1977 | | Activated 2B Jeff Rice from the disabled list. |
| Wednesday, August 3rd, 1977 | | Placed 2B Ronald O'Cune on the 15-day disabled list. |
| Sunday, July 17th, 1977 | | Activated 1B Rafael Adame from the disabled list. |
| Friday, July 8th, 1977 | | Placed 2B Jeff Rice on the 15-day disabled list. |
| Wednesday, June 15th, 1977 | | Drafted SP Chris Miller in the 1977 first-year player draft (Round 6, Pick 14, 122nd overall pick). | | Drafted C Alberto Mava in the 1977 first-year player draft (Round 7, Pick 14, 144th overall pick). | | Drafted MR Dave MacLucas in the 1977 first-year player draft (Round 8, Pick 14, 164th overall pick). | | Drafted 1B Andy Scott in the 1977 first-year player draft (Round 9, Pick 14, 184th overall pick). | | Drafted MR Sergio Montés in the 1977 first-year player draft (Round 10, Pick 14, 204th overall pick). | | Promoted 3B Jeff Gibson to Double A Corpus Christi. |
| Tuesday, June 7th, 1977 | | Activated 1B Kent Hudson from the disabled list. |
| Monday, June 6th, 1977 | | Placed 1B Rafael Adame on the 15-day disabled list. |
| Monday, May 30th, 1977 | | Activated 3B Jeff Gibson from the disabled list. |
| Friday, April 22nd, 1977 | | Placed 3B Jeff Gibson on the 15-day disabled list. |
| Wednesday, November 10th, 1976 | | Activated SP Jorge Bonilla from the disabled list. |
| Thursday, October 7th, 1976 | | MR Mark Hall becomes a free-agent. |
| Monday, September 13th, 1976 | | Signed pitching coach Kevin Jones. |
| Friday, August 27th, 1976 | | Activated CF Fernando García from the disabled list. |
| Thursday, August 26th, 1976 | | Pitching Coach Jacob Snow leaves the team, his contract was not renewed. |
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