| | | Monday, September 1st, 1975 | | Placed MR Dave LaRoche on the active roster. | | Activated MR Dave LaRoche from the disabled list. |
| Friday, July 4th, 1975 | | Placed SS Jim Fregosi on the 15-day disabled list, retroactive to 06/24/1975. | | Placed LF Boog Powell on the active roster. | | Activated LF Boog Powell from the disabled list. |
| Friday, May 16th, 1975 | | Placed LF Boog Powell on the 15-day disabled list, retroactive to 05/10/1975. |
| Saturday, March 1st, 1975 | | Drafted SP Dennis Eckersley in the 1975 first-year player draft (Round 1, Pick 2, 2nd overall pick). | | Drafted MR Tom Hausman in the 1975 first-year player draft (Round 2, Pick 2, 16th overall pick). | | Drafted 2B Steve Dillard in the 1975 first-year player draft (Round 3, Pick 2, 30th overall pick). | | Drafted 2B Rob Andrews in the 1975 first-year player draft (Round 4, Pick 2, 44th overall pick). | | Drafted 1B Mike Squires in the 1975 first-year player draft (Round 5, Pick 2, 58th overall pick). | | Released 1B Mike Squires. |
| Friday, November 1st, 1974 | | C D. Porter received a 1-year contract through automatic renewal worth a total of $2,000,000. | | SP G. Zahn received a 1-year contract through automatic renewal worth a total of $500,000. | | MR R. Moret received a 1-year contract through automatic renewal worth a total of $350,000. | | SP J. Matlack received a 1-year contract through automatic renewal worth a total of $2,400,000. | | SP L. Palmer received a 1-year contract through automatic renewal worth a total of $350,000. | | MR J. Curtis received a 1-year contract through automatic renewal worth a total of $350,000. | | MR D. LaRoche received a 1-year contract through automatic renewal worth a total of $1,000,000. | | SP D. Drago received a 1-year contract through automatic renewal worth a total of $350,000. | | CL J. Barr received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP D. Medich received a 1-year contract through automatic renewal worth a total of $2,200,000. | | SS B. Dent received a 1-year contract through automatic renewal worth a total of $350,000. | | C V. Correll received a 1-year contract through automatic renewal worth a total of $350,000. | | LF J. Milner received a 1-year contract through automatic renewal worth a total of $350,000. | | MR J. D'Acquisto received a 1-year contract through automatic renewal worth a total of $350,000. | | LF D. Baylor received a 1-year contract through automatic renewal worth a total of $350,000. | | RF R. Miller received a 1-year contract through automatic renewal worth a total of $350,000. |
| Tuesday, October 29th, 1974 | | 1B J. Hague received a 1-year contract through arbitration worth a total of $852,800. | | SP N. Ryan received a 1-year contract through arbitration worth a total of $4,000,000. | | MR D. Coombs received a 1-year contract through arbitration worth a total of $873,600. | | SP J. Niekro received a 1-year contract through arbitration worth a total of $1,000,000. | | 3B G. Nettles received a 1-year contract through arbitration worth a total of $2,600,000. | | CF R. Smith received a 1-year contract through arbitration worth a total of $4,600,000. |
| Monday, July 8th, 1974 | | Signed LF B. Powell to a 2-year contract extension worth a total of $21,100,000. |
| Thursday, May 16th, 1974 | | Placed RF R. Stone on the 15-day disabled list. | | Placed LF J. Milner on the active roster. | | Activated LF J. Milner from the disabled list. |
| Friday, March 1st, 1974 | | Traded $1,000 in cash to the Montréal Voyageurs, getting 27-year-old first baseman J. Lis, 20-year-old shortstop J. Royster and $2,000 in cash in return. | | Traded 30-year-old right fielder J. Cardenal and 25-year-old third baseman R. Cey to the Boston Federals, getting 29-year-old first baseman J. Hague and 24-year-old right fielder R. Torres in return. | | Drafted SP J. Denny in the 1974 first-year player draft (Round 1, Pick 13, 13th overall Pick). | | Drafted 1B M. Hargrove in the 1974 first-year player draft (Round 2, Pick 1, 15th overall Pick). | | Drafted SS B. Almon in the 1974 first-year player draft (Round 2, Pick 7, 21st overall Pick). | | Drafted MR J. Kern in the 1974 first-year player draft (Round 2, Pick 8, 22nd overall Pick). | | Drafted CF M. Dilone in the 1974 first-year player draft (Round 4, Pick 7, 49th overall Pick). | | Drafted MR T. Johnson in the 1974 first-year player draft (Round 5, Pick 7, 63rd overall Pick). | | Released MR T. Johnson. |
| Monday, November 5th, 1973 | | 3B R. Cey received a 1-year contract through automatic renewal worth a total of $750,000. | | C D. Porter received a 1-year contract through automatic renewal worth a total of $2,000,000. | | 1B M. Mantle becomes a free-agent. | | SS L. Cardenas received a 1-year contract through automatic renewal worth a total of $330,000. | | SP J. Matlack received a 1-year contract through automatic renewal worth a total of $2,400,000. | | CF J. Tartabull received a 1-year contract through automatic renewal worth a total of $300,000. | | RF R. Stone received a 1-year contract through automatic renewal worth a total of $300,000. | | MR D. LaRoche received a 1-year contract through automatic renewal worth a total of $1,000,000. | | SP D. Drago received a 1-year contract through automatic renewal worth a total of $300,000. | | CL J. Barr received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP B. Anderson becomes a free-agent. | | 3B G. Nettles received a 1-year contract through automatic renewal worth a total of $2,000,000. | | SP D. Medich received a 1-year contract through automatic renewal worth a total of $2,200,000. | | SS B. Dent received a 1-year contract through automatic renewal worth a total of $300,000. | | 3B D. Wert received a 1-year contract through automatic renewal worth a total of $350,000. | | C V. Correll received a 1-year contract through automatic renewal worth a total of $300,000. | | C R. Dempsey received a 1-year contract through automatic renewal worth a total of $300,000. | | LF J. Milner received a 1-year contract through automatic renewal worth a total of $300,000. | | MR R. Moret received a 1-year contract through automatic renewal worth a total of $300,000. |
| Friday, November 2nd, 1973 | | SP N. Ryan received a 1-year contract through arbitration worth a total of $4,400,000. | | MR D. Coombs received a 1-year contract through arbitration worth a total of $950,000. | | RF J. Cardenal received a 1-year contract through arbitration worth a total of $1,700,000. | | SP J. Niekro received a 1-year contract through arbitration worth a total of $1,100,000. | | CF R. Smith received a 1-year contract through arbitration worth a total of $5,000,000. | | SP G. Arrigo becomes a free-agent. |
| Monday, September 24th, 1973 | | Placed LF J. Milner on the 15-day disabled list. |
| Wednesday, August 1st, 1973 | | Placed MR C. Hartenstein on the 15-day disabled list. | | Purchased the contract of CL J. Barr from Triple A Denver. |
| Thursday, March 1st, 1973 | | Demoted SS F. Stanley to Triple A Denver. | | Demoted SS H. Torres to Triple A Denver. | | Demoted C A. Etchebarren to Triple A Denver. | | Purchased the contract of 1B J. Lis from Triple A Denver. | | Demoted 1B F. Robinson to Triple A Denver. | | Drafted SP G. Zahn in the 1973 first-year player draft (Round 3, Pick 12, 36th overall Pick). | | Drafted MR J. D'Acquisto in the 1973 first-year player draft (Round 4, Pick 4, 40th overall Pick). | | Drafted SS B. Dent in the 1973 first-year player draft (Round 4, Pick 11, 47th overall Pick). | | Drafted SS B. Dent in the 1973 first-year player draft (Round 4, Pick 11, 47th overall Pick). |
| Sunday, February 25th, 1973 | | Signed free agent C A. Etchebarren to a 1-year contract worth a total of $315,000. | | Signed free agent SS H. Torres to a 1-year contract worth a total of $310,000. |
| Thursday, February 22nd, 1973 | | Signed free agent SS F. Stanley to a 1-year contract worth a total of $315,000. |
| Tuesday, February 20th, 1973 | | Traded 33-year-old second baseman B. Allen, a 2nd round draft pick and a 3rd round draft pick to the Boston Federals, getting 36-year-old second baseman D. Howser and 29-year-old starting pitcher C. Dobson in return. | | Traded a 3rd round draft pick to the Dallas Texans, getting 23-year-old minor league catcher R. Dempsey in return. | | Traded a 4th round draft pick to the Detroit Griffins, getting 34-year-old catcher J. Edwards in return. | | Demoted SP M. Kilkenny to Triple A Denver. | | Demoted SP C. Dobson to Triple A Denver. | | Demoted MR P. Mikkelsen to Triple A Denver. | | Demoted C J. Edwards to Triple A Denver. | | Demoted 1B J. Lis to Triple A Denver. | | Demoted MR D. Drago to Triple A Denver. | | Purchased the contract of MR B. Greif from Triple A Denver. | | Demoted MR B. Greif to Triple A Denver. | | Purchased the contract of MR L. Palmer from Triple A Denver. | | Demoted 1B D. Baylor to Triple A Denver. | | Traded 21-year-old minor league reliever B. Greif, 21-year-old second baseman D. Rosello and 34-year-old minor league catcher J. Edwards to the Brooklyn Superbas, getting 24-year-old reliever J. Barr, 29-year-old reliever C. Hartenstein, 23-year-old right fielder R. Miller and 24-year-old minor league catcher F. Kendall in return. | | Demoted SP J. Barr to Triple A Denver. | | Demoted MR L. Palmer to Triple A Denver. | | Demoted C F. Kendall to Triple A Denver. |
| Tuesday, February 6th, 1973 | | Signed free agent SP B. Anderson to a 1-year contract worth a total of $600,000. | | Signed free agent SP M. Kilkenny to a 1-year contract worth a total of $328,000. |
| Thursday, February 1st, 1973 | | Purchased the contract of 3B D. Rosello from Triple A Denver. | | Traded 27-year-old starting pitcher D. Sutton, 29-year-old left fielder R. White and a 1st round draft pick to the Manhattan Gray Sox, getting 25-year-old catcher E. Rodriguez, 22-year-old reliever R. Moret, 22-year-old minor league first baseman D. Baylor, a 3rd round draft pick and a 4th round draft pick in return. |
| Sunday, November 5th, 1972 | | 3B R. Cey received a 1-year contract through automatic renewal worth a total of $750,000. | | SP D. Drago received a 1-year contract through automatic renewal worth a total of $300,000. | | SP D. Roberts received a 1-year contract through automatic renewal worth a total of $300,000. | | SP N. Ryan received a 1-year contract through automatic renewal worth a total of $2,300,000. | | SP J. Matlack received a 1-year contract through automatic renewal worth a total of $2,400,000. | | C T. McCarver becomes a free-agent. | | CL D. LaRoche received a 1-year contract through automatic renewal worth a total of $1,000,000. | | MR P. Mikkelsen received a 1-year contract through automatic renewal worth a total of $300,000. | | LF J. Cardenal received a 1-year contract through automatic renewal worth a total of $330,000. | | CF C. Flood becomes a free-agent. | | SP J. Niekro received a 1-year contract through automatic renewal worth a total of $1,000,000. | | 3B G. Nettles received a 1-year contract through automatic renewal worth a total of $2,000,000. | | SP D. Medich received a 1-year contract through automatic renewal worth a total of $2,200,000. | | LF J. Milner received a 1-year contract through automatic renewal worth a total of $300,000. | | 1B J. Lis received a 1-year contract through automatic renewal worth a total of $300,000. |
| Wednesday, October 4th, 1972 | | Signed 1B B. Powell to a 2-year contract extension worth a total of $20,200,000. |
| Tuesday, May 16th, 1972 | | Demoted CF J. Hall to Triple A Denver. | | Placed CF C. Flood on the active roster. | | Activated CF C. Flood from the disabled list. | | Placed MR D. Higgins on the 15-day disabled list. | | Placed SP B. Stafford on the International League 7-day disabled list. | | Purchased the contract of SP J. Niekro from Triple A Denver. |
| Wednesday, March 1st, 1972 | | Drafted SP D. Medich in the 1972 first-year player draft (Round 1, Pick 4, 4th overall Pick). | | Traded 28-year-old first baseman M. Hegan to the Manhattan Gray Sox, getting 31-year-old minor league reliever J. Aker, 35-year-old minor league second baseman B. Johnson and 28-year-old minor league catcher J. Hiatt in return. | | Demoted C J. Azcue to Triple A Denver. | | Demoted C J. Hiatt to Triple A Denver. | | Demoted CF J. Hall to Triple A Denver. | | Demoted 1B J. Gentile to Triple A Denver. | | Demoted MR J. Aker to Triple A Denver. | | Placed MR D. Coombs on the 15-day disabled list. | | Purchased the contract of MR L. Palmer from Triple A Denver. | | Traded 39-year-old minor league first baseman D. Stuart to the Cleveland Barons, getting 26-year-old shortstop H. Torres in return. | | Placed SS H. Torres on the 15-day disabled list. | | Drafted 2B D. Rosello in the 1972 first-year player draft (Round 5, Pick 2, 50th overall Pick). | | Drafted 1B J. Lis in the 1972 first-year player draft (Round 5, Pick 12, 60th overall Pick). |
| Monday, February 14th, 1972 | | Purchased the contract of MR P. Mikkelsen from Triple A Denver. |
| Sunday, February 6th, 1972 | | Signed free agent RF M. Mantle to a 2-year contract worth a total of $21,276,000. | | Signed free agent MR D. Coombs to a 2-year contract worth a total of $2,002,000. |
| Tuesday, February 1st, 1972 | | Purchased the contract of 3B R. Cey from Triple A Denver. |
| Monday, November 1st, 1971 | | 3B B. Aspromonte received a 1-year contract through automatic renewal worth a total of $500,000. | | MR G. Jackson received a 1-year contract through automatic renewal worth a total of $1,500,000. | | SP D. Drago received a 1-year contract through automatic renewal worth a total of $300,000. | | MR P. Mikkelsen received a 1-year contract through automatic renewal worth a total of $300,000. | | SP D. Roberts received a 1-year contract through automatic renewal worth a total of $300,000. | | SP N. Ryan received a 1-year contract through automatic renewal worth a total of $2,300,000. | | CL D. LaRoche received a 1-year contract through automatic renewal worth a total of $1,000,000. | | 1B M. Hegan received a 1-year contract through automatic renewal worth a total of $1,500,000. | | LF J. Cardenal received a 1-year contract through automatic renewal worth a total of $330,000. | | 3B G. Nettles received a 1-year contract through automatic renewal worth a total of $2,000,000. | | RF R. Smith received a 1-year contract through automatic renewal worth a total of $2,000,000. | | MR J. Niekro received a 1-year contract through automatic renewal worth a total of $1,000,000. | | CF G. Foster received a 1-year contract through automatic renewal worth a total of $2,100,000. | | SP L. Walker received a 1-year contract through automatic renewal worth a total of $1,000,000. | | LF R. White received a 1-year contract through automatic renewal worth a total of $1,500,000. | | C G. Mitterwald received a 1-year contract through automatic renewal worth a total of $500,000. | | LF N. Siebern becomes a free-agent. | | Demoted SP L. Burdette to Triple A Denver. | | Purchased the contract of SP J. Matlack from Triple A Denver. | | Demoted MR P. Mikkelsen to Triple A Denver. | | Demoted MR J. Niekro to Triple A Denver. | | Demoted 3B B. Aspromonte to Triple A Denver. | | Demoted 1B D. Stuart to Triple A Denver. | | Demoted CF G. Foster to Triple A Denver. |
| Friday, October 29th, 1971 | | LF B. Powell received a 1-year contract through arbitration worth a total of $6,500,000. | | RF R. Fairly received a 1-year contract through arbitration worth a total of $2,200,000. |
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