| Tuesday, September 19th, 1978 | Placed 2B Guillermo Ayala on the 9-day disabled list. | Monday, August 14th, 1978 | Failed to sign 3rd round draft pick Gabe Sweeney. | Sunday, August 13th, 1978 | Signed Jason Webb to a minor league contract with a signing bonus of $63,200. | Signed Manny Sánchez to a minor league contract with a signing bonus of $31,500. | Saturday, August 12th, 1978 | Signed Reynaldo Rivero to a minor league contract with a signing bonus of $195,500. | Friday, August 11th, 1978 | Signed Carlos Rodríguez to a minor league contract with a signing bonus of $13,600. | Monday, August 7th, 1978 | Signed Luis Moreno to a minor league contract with a signing bonus of $33,000. | Tuesday, July 25th, 1978 | Activated 1B Zane Thompson from the disabled list. | 1B Kenny Walls was designated for assignment and placed on waivers (from active). | Tuesday, June 6th, 1978 | Placed 2B Roy Sargent on the 60-day disabled list. | Thursday, October 20th, 1977 | Signed general manager Luis Amador to a 4-year, $71,800 per year contract. | |
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