| | | | | | | | | | |  | Major Transactions |
| | | | Tuesday, September 21st, 1965 | | Signed MR D. Luebke to a 1-year contract extension worth a total of $28,400. |
| Sunday, September 5th, 1965 | | Signed SS A. Rodgers to a 2-year contract extension worth a total of $400,000. |
| Saturday, August 21st, 1965 | | Signed SP T. Farrell to a 2-year contract extension worth a total of $430,000. |
| Thursday, April 22nd, 1965 | | Signed free agent LF B. Skinner to a 1-year contract worth a total of $186,600. |
| Wednesday, April 21st, 1965 | | Placed SS A. Rodgers on the 60-day disabled list. | | Purchased the contract of 2B V. Fuller from Triple A Rochester. |
| Thursday, November 19th, 1964 | | MR D. Willis received a 1-year contract through automatic renewal worth a total of $23,390. | | SP J. Miller received a 1-year contract through automatic renewal worth a total of $23,390. | | MR J. Santiago received a 1-year contract through automatic renewal worth a total of $23,390. | | C C. Lau becomes a free-agent. | | 1B D. Buford received a 1-year contract through automatic renewal worth a total of $23,390. | | MR F. Kreutzer received a 1-year contract through automatic renewal worth a total of $23,390. | | RF S. Bowens received a 1-year contract through automatic renewal worth a total of $23,390. | | RF R. Snyder becomes a free-agent. |
| Monday, November 16th, 1964 | | 2B B. Saverine received a 1-year contract through arbitration worth a total of $23,390. | | SP S. Barber received a 1-year contract through arbitration worth a total of $28,704. | | MR D. Zanni received a 1-year contract through arbitration worth a total of $23,390. | | LF B. Powell received a 1-year contract through arbitration worth a total of $457,968. | | SS R. Amaro received a 1-year contract through arbitration worth a total of $23,390. | | RF P. Ward received a 1-year contract through arbitration worth a total of $383,292. |
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