| | | Wednesday, September 18th, 1974 | | Placed CF António Valverde on the 9-day disabled list. |
| Sunday, August 11th, 1974 | | Activated MR Louis Wade from the disabled list. | | MR Leland Thomas was designated for assignment, placed on waivers and taken off the 40-man roster. | | Demoted SS Brett William to Triple A Woodstock. | | Signed Jesús Colón to a minor league contract with a signing bonus of $70,000. |
| Saturday, August 10th, 1974 | | Signed 1st round draft pick Darren Payne for a signing bonus of $581,300 and a 2-year major league contract worth a total of $1,162,600. |
| Friday, August 9th, 1974 | | 1B Luis Castillo was designated for assignment, placed on waivers and taken off the 40-man roster. |
| Tuesday, July 16th, 1974 | | 3B Travis Gould was designated for assignment, placed on waivers and taken off the 40-man roster. |
| Monday, July 15th, 1974 | | 2B Raúl Martínez was claimed off waivers from Boston. | | Signed Will Horn to a minor league contract with a signing bonus of $20,500. |
| Monday, June 24th, 1974 | | Signed Tony Ortíz to a minor league contract with a signing bonus of $104,100. |
| Saturday, May 25th, 1974 | | Activated MR Juan Luis Cruz from the 60-day disabled list. | | MR A.R. Page was designated for assignment, placed on waivers and taken off the 40-man roster. |
| Saturday, March 16th, 1974 | | Placed MR Juan Luis Cruz on the 60-day disabled list. |
| Thursday, February 7th, 1974 | | MR Marcos Domínguez was designated for assignment, placed on waivers and taken off the 40-man roster. |
| Sunday, January 6th, 1974 | | MR Ron Wills was designated for assignment and placed on waivers (from active). |
| Wednesday, October 24th, 1973 | | Signed free agent SP Jason Brady to a 1-year contract worth a total of $30,500. | | Assigned SP Jason Brady to Triple A Woodstock. |
| Monday, October 8th, 1973 | | Signed MR Juan Lerma to a 1-year contract extension worth a total of $43,496. | | Signed SP John Hemphill to a 2-year contract extension worth a total of $229,200. | | Signed 1B Brent Rush to a 1-year contract extension worth a total of $109,000. | | Signed SP Nick Cunningham to a 2-year contract extension worth a total of $140,000. | | Signed MR James Kelly to a 1-year contract extension worth a total of $49,300. | | Signed LF Andrew Wooten to a 1-year contract extension worth a total of $99,500. | | Signed MR Roy Roberts to a 1-year contract extension worth a total of $43,496. | | Signed CF Stephen Smith to a 2-year contract extension worth a total of $86,992. | | Signed 3B Nick Montgomery to a 3-year contract extension worth a total of $310,500. | | Signed MR Ed Compton to a 1-year contract extension worth a total of $43,496. |
| Sunday, October 7th, 1973 | | Signed SP Edgar Morales to a 1-year contract extension worth a total of $76,400. | | Signed MR Hunter Curtis to a 1-year contract extension worth a total of $46,000. | | Signed MR Ron Wills to a 1-year contract extension worth a total of $56,400. | | Signed SP Mike Dillon to a 1-year contract extension worth a total of $84,900. | | Signed C Ed Wilson to a 2-year contract extension worth a total of $101,000. |
| Saturday, October 6th, 1973 | | Signed CL José Soriano to a 1-year contract extension worth a total of $43,496. | | Signed 2B Martin White to a 2-year contract extension worth a total of $208,600. | | Signed RF António Valverde to a 1-year contract extension worth a total of $43,496. |
| Wednesday, October 3rd, 1973 | | Signed manager Terry Jackson to a 4-year, $48,100 per year contract. | | Signed bench coach Dennis Pennington to a 4-year, $57,400 per year contract. | | Signed team doctor Júlio Souza to a 3-year, $36,400 per year contract. | | Signed scouting director Steve Norton to a 3-year, $22,700 per year contract. | | Signed hitting coach Cecil Ainsley to a 4-year, $25,100 per year contract. | | Signed pitching coach Simon Nguyen to a 3-year, $18,300 per year contract. |
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