| | | Sunday, September 24th, 1972 | | Placed RF C. Hinton on the 15-day disabled list. | | Placed 2B D. Howser on the active roster. | | Activated 2B D. Howser from the disabled list. |
| Saturday, July 1st, 1972 | | Placed 2B J. Kennedy on the International League 7-day disabled list. |
| Wednesday, March 1st, 1972 | | Drafted MR E. Sosa in the 1972 first-year player draft (Round 2, Pick 8, 20th overall Pick). | | Drafted 3B W. Garrett in the 1972 first-year player draft (Round 3, Pick 8, 32nd overall Pick). | | Drafted 1B T. Solaita in the 1972 first-year player draft (Round 4, Pick 3, 39th overall Pick). |
| Sunday, February 6th, 1972 | | Signed free agent C J. Romano to a 2-year contract worth a total of $4,000,000. |
| Saturday, February 5th, 1972 | | Signed free agent LF R. Colavito to a 3-year contract worth a total of $24,900,000. |
| Thursday, February 3rd, 1972 | | Signed free agent RF R. Clemente to a 2-year contract worth a total of $9,700,000. |
| Tuesday, January 11th, 1972 | | Traded a 1st round draft pick and a 4th round draft pick to the Brooklyn Superbas, getting 20-year-old reliever M. Wilcox, 28-year-old reliever D. Selma and 24-year-old minor league third baseman B. Sudakis in return. |
| Monday, November 1st, 1971 | | MR D. Coombs received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP J. Koosman received a 1-year contract through automatic renewal worth a total of $2,100,000. | | MR G. Waslewski received a 1-year contract through automatic renewal worth a total of $300,000. | | SP G. Nolan received a 1-year contract through automatic renewal worth a total of $2,300,000. | | SS C. Boyer becomes a free-agent. | | C M. Sanguillen received a 1-year contract through automatic renewal worth a total of $500,000. | | RF B. Murcer received a 1-year contract through automatic renewal worth a total of $2,000,000. | | SP B. Blyleven received a 1-year contract through automatic renewal worth a total of $2,200,000. | | CF B. Tolan received a 1-year contract through automatic renewal worth a total of $1,500,000. | | CF M. Jones received a 1-year contract through automatic renewal worth a total of $300,000. | | SP M. Lopez received a 1-year contract through automatic renewal worth a total of $310,000. | | 1B J. Hague received a 1-year contract through automatic renewal worth a total of $300,000. | | LF A. Spangler becomes a free-agent. | | MR M. Kekich received a 1-year contract through automatic renewal worth a total of $300,000. | | RF L. Lee received a 1-year contract through automatic renewal worth a total of $300,000. | | MR R. Corbin received a 1-year contract through automatic renewal worth a total of $300,000. | | CL W. Twitchell received a 1-year contract through automatic renewal worth a total of $300,000. | | 1B L. Gabrielson received a 1-year contract through automatic renewal worth a total of $750,000. | | 2B D. Campbell received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B G. Sutherland received a 1-year contract through automatic renewal worth a total of $300,000. | | CL A. Hrabosky received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP J. Rooker received a 1-year contract through automatic renewal worth a total of $300,000. | | LF I. Murrell received a 1-year contract through automatic renewal worth a total of $300,000. | | RF A. Shamsky received a 1-year contract through automatic renewal worth a total of $300,000. | | SP J. Hook received a 1-year contract through automatic renewal worth a total of $300,000. | | Released MR L. Sherry. | | Released RF B. Murcer. | | Released MR D. Coombs. | | Released MR S. Morehead. | | Released LF A. Johnson. | | Released RF J. Northrup. |
| Friday, October 29th, 1971 | | SS D. McAuliffe received a 1-year contract through arbitration worth a total of $6,500,000. | | SP M. Cuellar received a 1-year contract through arbitration worth a total of $1,900,000. | | MR P. Richert received a 1-year contract through arbitration worth a total of $450,000. | | LF T. Davis received a 1-year contract through arbitration worth a total of $450,000. | | 3B S. Boros received a 1-year contract through arbitration worth a total of $450,000. | | 2B J. Kindall received a 1-year contract through arbitration worth a total of $450,000. | | 3B K. McMullen received a 1-year contract through arbitration worth a total of $950,000. |
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