Loading analytics
CIN · 2026 transactions
Data through 2026-10-03
| Date | Player | Type | Detail |
|---|---|---|---|
| Sep 26 | Julian Aguiar | Claimed Off Waivers | Chicago Cubs claimed RHP Julian Aguiar off waivers from Cincinnati Reds. |
| Sep 22 | TJ Friedl | Outrighted | Cincinnati Reds sent CF TJ Friedl outright to Louisville Bats. |
| Sep 22 | Tony Santillan | Status Change | Cincinnati Reds placed RHP Tony Santillan on the 15-day injured list retroactive to September 19, 2026. Left hip labral tear. |
| Sep 22 | Connor Phillips | Recalled | Cincinnati Reds recalled RHP Connor Phillips from Louisville Bats. |
| Sep 20 | TJ Friedl | Designated for Assignment | Cincinnati Reds designated CF TJ Friedl for assignment. |
| Sep 20 | Chase Burns | Status Change | Cincinnati Reds placed RHP Chase Burns on the 15-day injured list retroactive to September 19, 2026. Right groin strain. |
| Sep 20 | Carson Spiers | Selected | Cincinnati Reds selected the contract of RHP Carson Spiers from Louisville Bats. |
| Sep 19 | Oswaldo Cabrera | Status Change | Cincinnati Reds activated 3B Oswaldo Cabrera. |
| Sep 19 | TJ Friedl | Optioned | Cincinnati Reds optioned CF TJ Friedl to Louisville Bats. |
| Sep 19 | Zach McCambley | Recalled | Cincinnati Reds recalled RHP Zach McCambley from Louisville Bats. |
| Sep 19 | Julian Aguiar | Optioned | Cincinnati Reds optioned RHP Julian Aguiar to Louisville Bats. |
| Sep 18 | Julian Aguiar | Recalled | Cincinnati Reds recalled RHP Julian Aguiar from Louisville Bats. |
| Sep 18 | Julian Garcia | Status Change | Cincinnati Reds placed RHP Julian Garcia on the 15-day injured list retroactive to September 17, 2026. Right elbow loose bodies. |
| Sep 18 | Spencer Steer | Status Change | Cincinnati Reds transferred 1B Spencer Steer from the 10-day injured list to the 60-day injured list. Right wrist sprain. |
| Sep 18 | Oswaldo Cabrera | Claimed Off Waivers | Cincinnati Reds claimed 3B Oswaldo Cabrera off waivers from New York Yankees. |
| Sep 16 | Emilio Pagán | Number Change | RHP Emilio Pagán changed number to 15. |
| Sep 16 | Jose Trevino | Number Change | C Jose Trevino changed number to 35. |
| Sep 15 | Jose Trevino | Number Change | C Jose Trevino changed number to 21. |
| Sep 15 | Emilio Pagán | Number Change | RHP Emilio Pagán changed number to 21. |
| Sep 8 | Sam Moll | Released | Cincinnati Reds released LHP Sam Moll. |
| Sep 7 | Ke'Bryan Hayes | Status Change | Cincinnati Reds activated 3B Ke'Bryan Hayes from the 10-day injured list. |
| Sep 7 | Edwin Arroyo | Optioned | Cincinnati Reds optioned 2B Edwin Arroyo to Louisville Bats. |
| Sep 6 | Sam Moll | Designated for Assignment | Cincinnati Reds designated LHP Sam Moll for assignment. |
| Sep 6 | Graham Ashcraft | Status Change | Cincinnati Reds activated RHP Graham Ashcraft from the 60-day injured list. |
| Sep 4 | Carlos Jorge | Selected | Cincinnati Reds selected the contract of CF Carlos Jorge from Louisville Bats. |
| Sep 4 | Ivan Johnson | Optioned | Cincinnati Reds optioned 2B Ivan Johnson to Louisville Bats. |
| Sep 4 | Michael Toglia | Status Change | Cincinnati Reds transferred 1B Michael Toglia from the 10-day injured list to the 60-day injured list. Right shoulder dislocation. |
| Sep 3 | Dominic Fletcher | Signed as Free Agent | Cincinnati Reds signed free agent RF Dominic Fletcher to a minor league contract. |
| Sep 1 | Orlando Arcia | Signed as Free Agent | Cincinnati Reds signed free agent SS Orlando Arcia to a minor league contract. |
| Sep 1 | Ian Francis | Acquired | Cincinnati Reds acquired C Ian Francis from the Lake Erie Crushers of the. |
| Sep 1 | Brandon Williamson | Status Change | Cincinnati Reds activated LHP Brandon Williamson from the 60-day injured list. |
| Sep 1 | Juan Brito | Recalled | Cincinnati Reds recalled 2B Juan Brito from Louisville Bats. |
| Aug 28 | Ke'Bryan Hayes | Status Change | Cincinnati Reds placed 3B Ke'Bryan Hayes on the 10-day injured list retroactive to August 27, 2026. Left groin strain. |
| Aug 28 | Edwin Arroyo | Recalled | Cincinnati Reds recalled 2B Edwin Arroyo from Louisville Bats. |
| Aug 25 | Graham Ashcraft | Assigned | Cincinnati Reds sent RHP Graham Ashcraft on a rehab assignment to Louisville Bats. |
| Aug 25 | Graham Ashcraft | Assigned | Cincinnati Reds sent RHP Graham Ashcraft on a rehab assignment to Louisville Bats. |
| Aug 25 | Graham Ashcraft | Assigned | Cincinnati Reds sent RHP Graham Ashcraft on a rehab assignment to Louisville Bats. |
| Aug 23 | Michael Toglia | Status Change | Cincinnati Reds placed 1B Michael Toglia on the 10-day injured list retroactive to August 22, 2026. Right shoulder dislocation. |
| Aug 23 | Ivan Johnson | Recalled | Cincinnati Reds recalled 2B Ivan Johnson from Louisville Bats. |
| Aug 21 | Tony Santillan | Status Change | Cincinnati Reds activated RHP Tony Santillan from the 15-day injured list. |
| Aug 21 | Tony Santillan | Status Change | Cincinnati Reds activated RHP Tony Santillan from the 15-day injured list. |
| Aug 21 | Zach Maxwell | Optioned | Cincinnati Reds optioned RHP Zach Maxwell to Louisville Bats. |
| Aug 20 | Kent Emanuel | Outrighted | Cincinnati Reds sent LHP Kent Emanuel outright to Louisville Bats. |
| Aug 19 | Ron Marinaccio | Declared Free Agency | RHP Ron Marinaccio elected free agency. |
| Aug 19 | Darius Vines | Signed as Free Agent | Cincinnati Reds signed free agent RHP Darius Vines to a minor league contract. |
| Aug 18 | Noelvi Marte | Optioned | Cincinnati Reds optioned RF Noelvi Marte to Louisville Bats. |
| Aug 18 | Will Banfield | Recalled | Cincinnati Reds recalled C Will Banfield from Louisville Bats. |
| Aug 18 | Zach McCambley | Optioned | Cincinnati Reds optioned RHP Zach McCambley to Louisville Bats. |
| Aug 17 | Kent Emanuel | Designated for Assignment | Cincinnati Reds designated LHP Kent Emanuel for assignment. |
| Aug 17 | Zach Maxwell | Recalled | Cincinnati Reds recalled RHP Zach Maxwell from Louisville Bats. |
| Aug 17 | Kent Emanuel | Selected | Cincinnati Reds selected the contract of LHP Kent Emanuel from Louisville Bats. |
| Aug 17 | Zach McCambley | Recalled | Cincinnati Reds recalled RHP Zach McCambley from Louisville Bats. |
| Aug 17 | Ron Marinaccio | Designated for Assignment | Cincinnati Reds designated RHP Ron Marinaccio for assignment. |
| Aug 14 | Tony Santillan | Assigned | Cincinnati Reds sent RHP Tony Santillan on a rehab assignment to Louisville Bats. |
| Aug 11 | Zach McCambley | Optioned | Cincinnati Reds optioned RHP Zach McCambley to Louisville Bats. ny. |
| Aug 11 | Nick Lodolo | Status Change | Cincinnati Reds activated LHP Nick Lodolo from the 15-day injured list. |
| Aug 11 | Hunter Greene | Status Change | Cincinnati Reds transferred RHP Hunter Greene from the 15-day injured list to the 60-day injured list. Right elbow soreness. |
| Aug 11 | Michael Toglia | Selected | Cincinnati Reds selected the contract of 1B Michael Toglia from Louisville Bats. |
| Aug 10 | Ivan Johnson | Optioned | Cincinnati Reds optioned 2B Ivan Johnson to Louisville Bats. |
| Aug 8 | Chase Petty | Optioned | Cincinnati Reds optioned RHP Chase Petty to Louisville Bats. |
| Aug 8 | Ron Marinaccio | Status Change | Cincinnati Reds activated RHP Ron Marinaccio. |
| Aug 7 | Kent Emanuel | Signed as Free Agent | Cincinnati Reds signed free agent LHP Kent Emanuel to a minor league contract. |
| Aug 6 | Kent Emanuel | Acquired | Cincinnati Reds acquired LHP Kent Emanuel from the High Point Rockers of the Atlantic League. |
| Aug 6 | Brandon Williamson | Assigned | Cincinnati Reds sent LHP Brandon Williamson on a rehab assignment to Louisville Bats. |
| Aug 6 | Brandon Williamson | Assigned | Cincinnati Reds sent LHP Brandon Williamson on a rehab assignment to Louisville Bats. |
| Aug 6 | Blake Dunn | Status Change | Cincinnati Reds transferred CF Blake Dunn from the 10-day injured list to the 60-day injured list. Right elbow sprain. |
| Aug 6 | Chase Solesky | Optioned | Cincinnati Reds optioned RHP Chase Solesky to Louisville Bats. |
| Aug 6 | Chase Solesky | Claimed Off Waivers | Cincinnati Reds claimed RHP Chase Solesky off waivers from Tampa Bay Rays. |
| Aug 6 | Ron Marinaccio | Claimed Off Waivers | Cincinnati Reds claimed RHP Ron Marinaccio off waivers from Pittsburgh Pirates. |
| Aug 6 | Brandon Williamson | Assigned | Cincinnati Reds sent LHP Brandon Williamson on a rehab assignment to Louisville Bats. |
| Aug 5 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Louisville Bats. |
| Aug 5 | Hunter Greene | Status Change | Cincinnati Reds placed RHP Hunter Greene on the 15-day injured list retroactive to August 2, 2026. Right elbow soreness. |
| Aug 5 | Luis Mey | Recalled | Cincinnati Reds recalled RHP Luis Mey from Louisville Bats. |
| Aug 5 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Louisville Bats. |
| Aug 5 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Louisville Bats. |
| Aug 4 | Héctor Rodríguez | Recalled | Cincinnati Reds recalled LF Héctor Rodríguez from Louisville Bats. |
| Aug 3 | Chase Petty | Recalled | Cincinnati Reds recalled RHP Chase Petty from Louisville Bats. |
| Aug 3 | Juan Brito | Optioned | Cincinnati Reds optioned 2B Juan Brito to Louisville Bats. |
| Aug 3 | — | Trade | Cincinnati Reds traded LHP Caleb Ferguson to St. Louis Cardinals for Other Considerations. |
| Aug 3 | Alejandro Rivera | Trade | Cincinnati Reds traded DH Nathaniel Lowe and cash to Cleveland Guardians for RHP Alejandro Rivera and 2B Juan Brito. |
| Aug 1 | Brandon Williamson | Assigned | Cincinnati Reds sent LHP Brandon Williamson on a rehab assignment to Chattanooga Lookouts. |
| Aug 1 | Brandon Williamson | Assigned | Cincinnati Reds sent LHP Brandon Williamson on a rehab assignment to Chattanooga Lookouts. |
| Jul 30 | Ryan Garcia | Acquired | Cincinnati Reds acquired RHP Ryan Garcia from the Kansas City Monarchs of the American Association. |
| Jul 30 | Chase Petty | Optioned | Cincinnati Reds optioned RHP Chase Petty to Louisville Bats. |
| Jul 30 | Edwin Arroyo | Optioned | Cincinnati Reds optioned 2B Edwin Arroyo to Louisville Bats. |
| Jul 30 | Zach McCambley | Recalled | Cincinnati Reds recalled RHP Zach McCambley from Louisville Bats. |
| Jul 30 | Matt McLain | Status Change | Cincinnati Reds activated 2B Matt McLain from the 10-day injured list. |
| Jul 29 | Jose Franco | Optioned | Cincinnati Reds optioned RHP Jose Franco to Louisville Bats. |
| Jul 28 | Jose Franco | Status Change | Cincinnati Reds activated RHP Jose Franco. |
| Jul 28 | Jose Franco | Recalled | Cincinnati Reds recalled RHP Jose Franco from Louisville Bats. |
| Jul 27 | Ivan Johnson | Recalled | Cincinnati Reds recalled 2B Ivan Johnson from Louisville Bats. |
| Jul 27 | Spencer Steer | Status Change | Cincinnati Reds placed 1B Spencer Steer on the 10-day injured list. Right wrist sprain. |
| Jul 25 | Kenny Ishikawa | Signed | Cincinnati Reds signed TWP Kenny Ishikawa. |
| Jul 24 | Matt McLain | Assigned | Cincinnati Reds sent 2B Matt McLain on a rehab assignment to Louisville Bats. |
| Jul 23 | Christopher Asencio | Signed as Free Agent | Cincinnati Reds signed free agent RHP Christopher Asencio to a minor league contract. |
| Jul 21 | Dylan Bowen | Signed | Cincinnati Reds signed SS Dylan Bowen. |
| Jul 21 | Eric Becker | Signed | Cincinnati Reds signed SS Eric Becker. |
| Jul 21 | Anthony Misiewicz | Signed as Free Agent | Cincinnati Reds signed free agent LHP Anthony Misiewicz to a minor league contract. |
| Jul 17 | Ryan Nelson | Signed | Cincinnati Reds signed RHP Ryan Nelson. |
| Jul 17 | Duncan Marsten | Signed | Cincinnati Reds signed RHP Duncan Marsten. |
| Jul 17 | Ivan Johnson | Optioned | Cincinnati Reds optioned 2B Ivan Johnson to Louisville Bats. |
| Jul 17 | Dane Myers | Status Change | Cincinnati Reds activated CF Dane Myers from the 10-day injured list. |
| Jul 16 | Tristan Helmick | Signed | Cincinnati Reds signed RHP Tristan Helmick. |
| Jul 16 | Jack Lausch | Signed | Cincinnati Reds signed OF Jack Lausch. |
| Jul 16 | Victor Christal | Signed | Cincinnati Reds signed RHP Victor Christal. |
| Jul 16 | Ray Ladd | Signed | Cincinnati Reds signed RHP Ray Ladd. |
| Jul 16 | Brodie Purcell | Signed | Cincinnati Reds signed RHP Brodie Purcell. |
| Jul 16 | Calvin Proskey | Signed | Cincinnati Reds signed RHP Calvin Proskey. |
| Jul 16 | Conner Griffin | Signed | Cincinnati Reds signed RHP Conner Griffin. |
| Jul 16 | Damian Ruiz | Signed | Cincinnati Reds signed OF Damian Ruiz. |
| Jul 16 | Brady Neal | Signed | Cincinnati Reds signed C Brady Neal. |
| Jul 16 | Sherman Johnson | Signed | Cincinnati Reds signed 3B Sherman Johnson. |
| Jul 16 | Ethan Norby | Signed | Cincinnati Reds signed LHP Ethan Norby. |
| Jul 16 | Ty Horn | Signed | Cincinnati Reds signed RHP Tyner Horn. |
| Jul 16 | Mulivai Levu | Signed | Cincinnati Reds signed 1B Mulivai Levu. |
| Jul 16 | Justin Lebron | Signed | Cincinnati Reds signed SS Justin Lebron. |
| Jul 13 | Dane Myers | Assigned | Cincinnati Reds sent CF Dane Myers on a rehab assignment to ACL Reds. |
| Jul 12 | Nick Lodolo | Status Change | Cincinnati Reds placed LHP Nick Lodolo on the 15-day injured list. Blister left index finger. |
| Jul 12 | Chase Petty | Recalled | Cincinnati Reds recalled RHP Chase Petty from Louisville Bats. |
| Jul 10 | Matt McLain | Status Change | Cincinnati Reds placed 2B Matt McLain on the 10-day injured list retroactive to July 8, 2026. Left calf strain. |
| Jul 10 | Ke'Bryan Hayes | Status Change | Cincinnati Reds activated 3B Ke'Bryan Hayes from the 10-day injured list. |
| Jul 8 | Manuel Sanchez | Signed as Free Agent | Cincinnati Reds signed free agent LHP Manuel Sanchez to a minor league contract. |
| Jul 8 | Will Benson | Outrighted | Cincinnati Reds sent RF Will Benson outright to Louisville Bats. |
| Jul 7 | Cameron Cotter | Acquired | Cincinnati Reds acquired RHP Cameron Cotter from the Down East Bird Dawgs of the Frontier League. |
| Jul 7 | Ke'Bryan Hayes | Assigned | Cincinnati Reds sent 3B Ke'Bryan Hayes on a rehab assignment to Louisville Bats. |
| Jul 7 | Ke'Bryan Hayes | Assigned | Cincinnati Reds sent 3B Ke'Bryan Hayes on a rehab assignment to Louisville Bats. |
| Jul 6 | Ben Wereski | Acquired | Cincinnati Reds acquired LHP Ben Wereski from the High Point Rockers of the Atlantic League. |
| Jul 4 | Hunter Greene | Status Change | Cincinnati Reds activated RHP Hunter Greene from the 60-day injured list. |
| Jul 4 | Will Benson | Designated for Assignment | Cincinnati Reds designated RF Will Benson for assignment. |
| Jul 4 | Chase Petty | Optioned | Cincinnati Reds optioned RHP Chase Petty to Louisville Bats. |
| Jul 3 | Ke'Bryan Hayes | Assigned | Cincinnati Reds sent 3B Ke'Bryan Hayes on a rehab assignment to Dayton Dragons. |
| Jun 30 | Dane Myers | Status Change | Cincinnati Reds placed CF Dane Myers on the 10-day injured list. Left shoulder contusion. |
| Jun 30 | Emilio Pagán | Status Change | Cincinnati Reds activated RHP Emilio Pagán from the 15-day injured list. |
| Jun 30 | Zach McCambley | Optioned | Cincinnati Reds optioned RHP Zach McCambley to Louisville Bats. |
| Jun 30 | Ivan Johnson | Selected | Cincinnati Reds selected the contract of 2B Ivan Johnson from Louisville Bats. |
| Jun 29 | Marcus Smith | Acquired | Cincinnati Reds acquired LF Marcus Smith from the Kansas City Monarchs of the American Association. |
| Jun 28 | Blake Dunn | Status Change | Cincinnati Reds placed CF Blake Dunn on the 10-day injured list retroactive to June 27, 2026. Right elbow sprain. |
| Jun 28 | TJ Friedl | Recalled | Cincinnati Reds recalled CF TJ Friedl from Louisville Bats. |
| Jun 26 | Tony Santillan | Status Change | Cincinnati Reds placed RHP Tony Santillan on the 15-day injured list retroactive to June 23, 2026. Left oblique strain. |
| Jun 26 | Zach McCambley | Recalled | Cincinnati Reds recalled RHP Zach McCambley from Louisville Bats. |
| Jun 25 | Emilio Pagán | Assigned | Cincinnati Reds sent RHP Emilio Pagán on a rehab assignment to Louisville Bats. |
| Jun 25 | Emilio Pagán | Assigned | Cincinnati Reds sent RHP Emilio Pagán on a rehab assignment to Louisville Bats. |
| Jun 24 | Chris Paddack | Outrighted | Cincinnati Reds sent RHP Chris Paddack outright to Louisville Bats. |
| Jun 23 | Hunter Greene | Assigned | Cincinnati Reds sent RHP Hunter Greene on a rehab assignment to Louisville Bats. |
| Jun 23 | Will Benson | Optioned | Cincinnati Reds optioned RF Will Benson to Louisville Bats. |
| Jun 23 | Hunter Greene | Assigned | Cincinnati Reds sent RHP Hunter Greene on a rehab assignment to Louisville Bats. |
| Jun 23 | Elly De La Cruz | Status Change | Cincinnati Reds activated SS Elly De La Cruz from the 10-day injured list. |
| Jun 22 | Chris Paddack | Designated for Assignment | Cincinnati Reds designated RHP Chris Paddack for assignment. |
| Jun 22 | Zach Maxwell | Optioned | Cincinnati Reds optioned RHP Zach Maxwell to Louisville Bats. |
| Jun 22 | Julian Garcia | Selected | Cincinnati Reds selected the contract of RHP Julian Garcia from Louisville Bats. |
| Jun 22 | Pierce Johnson | Status Change | Cincinnati Reds activated RHP Pierce Johnson from the 15-day injured list. |
| Jun 19 | Elly De La Cruz | Assigned | Cincinnati Reds sent SS Elly De La Cruz on a rehab assignment to Louisville Bats. |
| Jun 19 | Elly De La Cruz | Assigned | Cincinnati Reds sent SS Elly De La Cruz on a rehab assignment to Louisville Bats. |
| Jun 18 | Hunter Greene | Assigned | Cincinnati Reds sent RHP Hunter Greene on a rehab assignment to ACL Reds. |
| Jun 18 | Pierce Johnson | Assigned | Cincinnati Reds sent RHP Pierce Johnson on a rehab assignment to Louisville Bats. |
| Jun 18 | Pierce Johnson | Assigned | Cincinnati Reds sent RHP Pierce Johnson on a rehab assignment to Louisville Bats. |
| Jun 18 | Hunter Greene | Assigned | Cincinnati Reds sent RHP Hunter Greene on a rehab assignment to ACL Reds. |
| Jun 18 | Pierce Johnson | Assigned | Cincinnati Reds sent RHP Pierce Johnson on a rehab assignment to Louisville Bats. |
| Jun 18 | Will Banfield | Optioned | Cincinnati Reds optioned C Will Banfield to Louisville Bats. |
| Jun 18 | Will Banfield | Selected | Cincinnati Reds selected the contract of C Will Banfield from Louisville Bats. |
| Jun 18 | P.J. Higgins | Outrighted | Cincinnati Reds sent C P.J. Higgins outright to Louisville Bats. |
| Jun 14 | P.J. Higgins | Optioned | Cincinnati Reds optioned C P.J. Higgins to Louisville Bats. |
| Jun 14 | Jose Trevino | Status Change | Cincinnati Reds activated C Jose Trevino from the 10-day injured list. |
| Jun 13 | Sam Haggerty | Signed as Free Agent | Cincinnati Reds signed free agent LF Sam Haggerty to a minor league contract. |
| Jun 10 | Zach McCambley | Optioned | Cincinnati Reds optioned RHP Zach McCambley to Louisville Bats. |
| Jun 10 | Chase Petty | Recalled | Cincinnati Reds recalled RHP Chase Petty from Louisville Bats. |
| Jun 8 | Steffon Moore | Acquired | Cincinnati Reds acquired LHP Steffon Moore from the Kansas City Monarchs of the American Association. |
| Jun 7 | Rhett Lowder | Status Change | Cincinnati Reds activated RHP Rhett Lowder from the 15-day injured list. |
| Jun 7 | Luis Mey | Optioned | Cincinnati Reds optioned RHP Luis Mey to Louisville Bats. |
| Jun 6 | Julio Carreras | Obtained | Cincinnati Reds obtain 3B Julio Carreras from Lake Country DockHounds. |
| Jun 4 | Lyon Richardson | Outrighted | Cincinnati Reds sent RHP Lyon Richardson outright to Louisville Bats. |
| Jun 4 | Brandon Leibrandt | Outrighted | Cincinnati Reds sent LHP Brandon Leibrandt outright to Louisville Bats. |
| Jun 4 | Jose Trevino | Assigned | Cincinnati Reds sent C Jose Trevino on a rehab assignment to Louisville Bats. |
| Jun 4 | — | Trade | Cincinnati Reds traded RHP Kyle Nicolas to Baltimore Orioles for cash. |
| Jun 3 | Noelvi Marte | Status Change | Cincinnati Reds activated RF Noelvi Marte. |
| Jun 3 | Yunior Marte | Outrighted | Cincinnati Reds sent RHP Yunior Marte outright to Louisville Bats. |
| Jun 3 | Noelvi Marte | Recalled | Cincinnati Reds recalled OF Noelvi Marte from Louisville Bats. |
| Jun 3 | TJ Friedl | Optioned | Cincinnati Reds optioned CF TJ Friedl to Louisville Bats. |
| Jun 2 | Rhett Lowder | Assigned | Cincinnati Reds sent RHP Rhett Lowder on a rehab assignment to Louisville Bats. |
| Jun 2 | Lyon Richardson | Designated for Assignment | Cincinnati Reds designated RHP Lyon Richardson for assignment. |
| Jun 2 | Brandon Leibrandt | Designated for Assignment | Cincinnati Reds designated LHP Brandon Leibrandt for assignment. |
| Jun 2 | Luis Mey | Recalled | Cincinnati Reds recalled RHP Luis Mey from Louisville Bats. |
| Jun 2 | Zach McCambley | Selected | Cincinnati Reds selected the contract of RHP Zach McCambley from Louisville Bats. |
| Jun 1 | Brandon Leibrandt | Selected | Cincinnati Reds selected the contract of LHP Brandon Leibrandt from Louisville Bats. |
| Jun 1 | Edwin Arroyo | Recalled | Cincinnati Reds recalled SS Edwin Arroyo from Louisville Bats. |
| Jun 1 | Yunior Marte | Designated for Assignment | Cincinnati Reds designated RHP Yunior Marte for assignment. |
| Jun 1 | Elly De La Cruz | Status Change | Cincinnati Reds placed SS Elly De La Cruz on the 10-day injured list. Right hamstring strain. |
| May 30 | Pierce Johnson | Status Change | Cincinnati Reds placed RHP Pierce Johnson on the 15-day injured list retroactive to May 27, 2026. Right elbow inflammation. |
| May 30 | Kyle Nicolas | Designated for Assignment | Cincinnati Reds designated RHP Kyle Nicolas for assignment. |
| May 30 | Pierce Johnson | Status Change | Cincinnati Reds placed RHP Pierce Johnson on the 15-day injured list. Right elbow inflammation. |
| May 30 | Lyon Richardson | Selected | Cincinnati Reds selected the contract of RHP Lyon Richardson from Louisville Bats. |
| May 29 | Yunior Marte | Selected | Cincinnati Reds selected the contract of RHP Yunior Marte from Louisville Bats. |
| May 29 | Graham Ashcraft | Status Change | Cincinnati Reds placed RHP Graham Ashcraft on the 60-day injured list. Right forearm UCL sprain. |
| May 24 | Luis Vasquez | Signed as Free Agent | Cincinnati Reds signed free agent RHP Luis Vasquez to a minor league contract. |
| May 24 | Raymond Cruz | Signed as Free Agent | Cincinnati Reds signed free agent LHP Raymond Cruz to a minor league contract. |
| May 24 | Chase Petty | Optioned | Cincinnati Reds optioned RHP Chase Petty to Louisville Bats. |
| May 23 | Zach Maxwell | Recalled | Cincinnati Reds recalled RHP Zach Maxwell from Louisville Bats. |
| May 23 | Caleb Ferguson | Status Change | Cincinnati Reds activated LHP Caleb Ferguson from the 15-day injured list. |
| May 23 | Connor Phillips | Optioned | Cincinnati Reds optioned RHP Connor Phillips to Louisville Bats. |
| May 23 | Jose Franco | Optioned | Cincinnati Reds optioned RHP Jose Franco to Louisville Bats. |
| May 23 | Chase Petty | Recalled | Cincinnati Reds recalled RHP Chase Petty from Louisville Bats. |
| May 22 | Eugenio Suárez | Status Change | Cincinnati Reds activated DH Eugenio Suárez from the 10-day injured list. |
| May 22 | Eugenio Suárez | Status Change | Cincinnati Reds activated 3B Eugenio Suárez from the 10-day injured list. |
| May 22 | Ke'Bryan Hayes | Status Change | Cincinnati Reds placed 3B Ke'Bryan Hayes on the 10-day injured list retroactive to May 21, 2026. Lumbar bulging disc. |
| May 21 | Zach McCambley | Status Change | RHP Zach McCambley roster status changed by Cincinnati Reds. |
| May 21 | Zach McCambley | Trade | Cincinnati Reds traded RF Rece Hinds to Miami Marlins for RHP Zach McCambley. |
| May 20 | Eugenio Suárez | Assigned | Cincinnati Reds sent 3B Eugenio Suárez on a rehab assignment to Louisville Bats. |
| May 17 | Rece Hinds | Designated for Assignment | Cincinnati Reds designated RF Rece Hinds for assignment. |
| May 17 | Jose Trevino | Status Change | Cincinnati Reds placed C Jose Trevino on the 10-day injured list. Left hamstring injury. |
| May 17 | Luis Mey | Optioned | Cincinnati Reds optioned RHP Luis Mey to Louisville Bats. |
| May 17 | Jose Franco | Recalled | Cincinnati Reds recalled RHP Jose Franco from Louisville Bats. |
| May 17 | P.J. Higgins | Selected | Cincinnati Reds selected the contract of C P.J. Higgins from Louisville Bats. |
| May 14 | P.J. Higgins | Outrighted | Cincinnati Reds sent C P.J. Higgins outright to Louisville Bats. |
| May 13 | Rhett Lowder | Status Change | Cincinnati Reds placed RHP Rhett Lowder on the 15-day injured list. Right shoulder pain. |
| May 13 | P.J. Higgins | Designated for Assignment | Cincinnati Reds designated C P.J. Higgins for assignment. |
| May 13 | Chris Paddack | Signed as Free Agent | Cincinnati Reds signed free agent RHP Chris Paddack. |
| May 11 | Ekin Decena | Signed as Free Agent | Cincinnati Reds signed free agent LHP Ekin Decena to a minor league contract. |
| May 9 | Wellmir Lara | Signed as Free Agent | Cincinnati Reds signed free agent OF Wellmir Lara to a minor league contract. |
| May 9 | Jose Alcantara | Signed as Free Agent | Cincinnati Reds signed free agent LHP Jose Alcantara to a minor league contract. |
| May 8 | Nick Lodolo | Status Change | Cincinnati Reds activated LHP Nick Lodolo from the 15-day injured list. |
| May 8 | Jose Franco | Optioned | Cincinnati Reds optioned RHP Jose Franco to Louisville Bats. |
| May 6 | Emilio Pagán | Status Change | Cincinnati Reds placed RHP Emilio Pagán on the 15-day injured list. Left hamstring strain. |
| May 6 | Tejay Antone | Selected | Cincinnati Reds selected the contract of RHP Tejay Antone from Louisville Bats. |
| May 6 | Brandon Williamson | Status Change | Cincinnati Reds transferred LHP Brandon Williamson from the 15-day injured list to the 60-day injured list. Left shoulder fatigue. |
| May 6 | Chase Petty | Optioned | Cincinnati Reds optioned RHP Chase Petty to Louisville Bats. |
| May 6 | Pierce Johnson | Status Change | Cincinnati Reds activated RHP Pierce Johnson from the bereavement list. |
| May 6 | Natali Familia | Signed as Free Agent | Cincinnati Reds signed free agent RHP Natali Familia to a minor league contract. |
| May 5 | Caleb Ferguson | Assigned | Cincinnati Reds sent LHP Caleb Ferguson on a rehab assignment to Louisville Bats. |
| May 5 | Caleb Ferguson | Assigned | Cincinnati Reds sent LHP Caleb Ferguson on a rehab assignment to Louisville Bats. |
| May 5 | Caleb Ferguson | Assigned | Cincinnati Reds sent LHP Caleb Ferguson on a rehab assignment to Louisville Bats. |
| May 4 | Zach Maxwell | Optioned | Cincinnati Reds optioned RHP Zach Maxwell to Louisville Bats. |
| May 4 | Chase Petty | Recalled | Cincinnati Reds recalled RHP Chase Petty from Louisville Bats. |
| May 3 | Zach Maxwell | Recalled | Cincinnati Reds recalled RHP Zach Maxwell from Louisville Bats. |
| May 3 | Blake Dunn | Recalled | Cincinnati Reds recalled LF Blake Dunn from Louisville Bats. |
| May 3 | Rece Hinds | Optioned | Cincinnati Reds optioned RF Rece Hinds to Louisville Bats. |
| May 3 | Pierce Johnson | Status Change | Cincinnati Reds placed RHP Pierce Johnson on the bereavement list. |
| May 2 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Louisville Bats. |
| May 2 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Louisville Bats. |
| May 2 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Louisville Bats. |
| May 2 | Zach Maxwell | Optioned | Cincinnati Reds optioned RHP Zach Maxwell to Louisville Bats. |
| May 2 | Graham Ashcraft | Status Change | Cincinnati Reds activated RHP Graham Ashcraft from the bereavement list. |
| Apr 30 | Brandon Williamson | Status Change | Cincinnati Reds placed LHP Brandon Williamson on the 15-day injured list. Left shoulder fatigue. |
| Apr 30 | Zach Maxwell | Recalled | Cincinnati Reds recalled RHP Zach Maxwell from Louisville Bats. |
| Apr 29 | Graham Ashcraft | Status Change | Cincinnati Reds placed RHP Graham Ashcraft on the bereavement list. |
| Apr 29 | Luis Mey | Recalled | Cincinnati Reds recalled RHP Luis Mey from Louisville Bats. |
| Apr 28 | Keury De Jesus | Signed as Free Agent | Cincinnati Reds signed free agent RHP Keury De Jesus to a minor league contract. |
| Apr 28 | Caleb Ferguson | Assigned | Cincinnati Reds sent LHP Caleb Ferguson on a rehab assignment to Chattanooga Lookouts. |
| Apr 26 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Dayton Dragons. |
| Apr 26 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Dayton Dragons. |
| Apr 26 | P.J. Higgins | Optioned | Cincinnati Reds optioned C P.J. Higgins to Louisville Bats. |
| Apr 26 | Jose Trevino | Status Change | Cincinnati Reds activated C Jose Trevino from the 10-day injured list. |
| Apr 25 | Braillin Cordero | Signed as Free Agent | Cincinnati Reds signed free agent RHP Braillin Cordero to a minor league contract. |
| Apr 25 | Joan Sinvil | Signed as Free Agent | Cincinnati Reds signed free agent RHP Joan Sinvil to a minor league contract. |
| Apr 25 | Jose Franco | Recalled | Cincinnati Reds recalled RHP Jose Franco from Louisville Bats. |
| Apr 25 | JJ Bleday | Recalled | Cincinnati Reds recalled CF JJ Bleday from Louisville Bats. |
| Apr 25 | Kyle Nicolas | Optioned | Cincinnati Reds optioned RHP Kyle Nicolas to Louisville Bats. |
| Apr 25 | Eugenio Suárez | Status Change | Cincinnati Reds placed 3B Eugenio Suárez on the 10-day injured list retroactive to April 23, 2026. Mild left oblique strain. |
| Apr 25 | Brandon Phillips | Retired | 2B Brandon Phillips retired. |
| Apr 24 | Jose Trevino | Assigned | Cincinnati Reds sent C Jose Trevino on a rehab assignment to Dayton Dragons. |
| Apr 23 | Aitol Lopez | Signed as Free Agent | Cincinnati Reds signed free agent RHP Aitol Lopez to a minor league contract. |
| Apr 16 | Spencer Steer | Status Change | Cincinnati Reds activated 1B Spencer Steer. |
| Apr 16 | Nathaniel Lowe | Status Change | Cincinnati Reds activated DH Nathaniel Lowe. |
| Apr 16 | Will Benson | Number Change | LF Will Benson changed number to 30. |
| Apr 16 | Graham Ashcraft | Number Change | RHP Graham Ashcraft changed number to 23. |
| Apr 16 | Andrew Abbott | Number Change | LHP Andrew Abbott changed number to 41. |
| Apr 16 | Brock Burke | Number Change | LHP Brock Burke changed number to 49. |
| Apr 16 | Chase Burns | Number Change | RHP Chase Burns changed number to 26. |
| Apr 16 | Ke'Bryan Hayes | Number Change | 3B Ke'Bryan Hayes changed number to 3. |
| Apr 16 | Rece Hinds | Number Change | RF Rece Hinds changed number to 57. |
| Apr 16 | P.J. Higgins | Number Change | C P.J. Higgins changed number to 65. |
| Apr 16 | TJ Friedl | Number Change | CF TJ Friedl changed number to 29. |
| Apr 16 | Elly De La Cruz | Number Change | SS Elly De La Cruz changed number to 44. |
| Apr 16 | Matt McLain | Number Change | 2B Matt McLain changed number to 9. |
| Apr 16 | Rhett Lowder | Number Change | RHP Rhett Lowder changed number to 25. |
| Apr 16 | Sam Moll | Number Change | LHP Sam Moll changed number to 50. |
| Apr 16 | Pierce Johnson | Number Change | RHP Pierce Johnson changed number to 52. |
| Apr 16 | Nathaniel Lowe | Number Change | 1B Nathaniel Lowe changed number to 31. |
| Apr 16 | Connor Phillips | Number Change | RHP Connor Phillips changed number to 34. |
| Apr 16 | Emilio Pagán | Number Change | RHP Emilio Pagán changed number to 15. |
| Apr 16 | Tony Santillan | Number Change | RHP Tony Santillan changed number to 64. |
| Apr 16 | Kyle Nicolas | Number Change | RHP Kyle Nicolas changed number to 62. |
| Apr 16 | Brady Singer | Number Change | RHP Brady Singer changed number to 51. |
| Apr 16 | Dane Myers | Number Change | CF Dane Myers changed number to 17. |
| Apr 16 | Tyler Stephenson | Number Change | C Tyler Stephenson changed number to 37. |
| Apr 16 | Eugenio Suárez | Number Change | 3B Eugenio Suárez changed number to 28. |
| Apr 16 | Sal Stewart | Number Change | 3B Sal Stewart changed number to 27. |
| Apr 16 | Spencer Steer | Number Change | 1B Spencer Steer changed number to 7. |
| Apr 16 | Brandon Williamson | Number Change | LHP Brandon Williamson changed number to 55. |
| Apr 15 | Nathaniel Lowe | Number Change | 1B Nathaniel Lowe changed number to 42. |
| Apr 15 | Tony Santillan | Number Change | RHP Tony Santillan changed number to 42. |
| Apr 15 | Andrew Abbott | Number Change | LHP Andrew Abbott changed number to 42. |
| Apr 15 | Tyler Stephenson | Number Change | C Tyler Stephenson changed number to 42. |
| Apr 15 | Sam Moll | Number Change | LHP Sam Moll changed number to 42. |
| Apr 15 | Brady Singer | Number Change | RHP Brady Singer changed number to 42. |
| Apr 15 | Kyle Nicolas | Number Change | RHP Kyle Nicolas changed number to 42. |
| Apr 15 | Matt McLain | Number Change | 2B Matt McLain changed number to 42. |
| Apr 15 | P.J. Higgins | Number Change | C P.J. Higgins changed number to 42. |
| Apr 15 | Dane Myers | Number Change | CF Dane Myers changed number to 42. |
| Apr 15 | Eugenio Suárez | Number Change | 3B Eugenio Suárez changed number to 42. |
| Apr 15 | Sal Stewart | Number Change | 3B Sal Stewart changed number to 42. |
| Apr 15 | Brandon Williamson | Number Change | LHP Brandon Williamson changed number to 42. |
| Apr 15 | Will Benson | Number Change | LF Will Benson changed number to 42. |
| Apr 15 | Emilio Pagán | Number Change | RHP Emilio Pagán changed number to 42. |
| Apr 15 | Pierce Johnson | Number Change | RHP Pierce Johnson changed number to 42. |
| Apr 15 | Connor Phillips | Number Change | RHP Connor Phillips changed number to 42. |
| Apr 15 | TJ Friedl | Number Change | CF TJ Friedl changed number to 42. |
| Apr 15 | Ke'Bryan Hayes | Number Change | 3B Ke'Bryan Hayes changed number to 42. |
| Apr 15 | Rhett Lowder | Number Change | RHP Rhett Lowder changed number to 42. |
| Apr 15 | Elly De La Cruz | Number Change | SS Elly De La Cruz changed number to 42. |
| Apr 15 | Brock Burke | Number Change | LHP Brock Burke changed number to 42. |
| Apr 15 | Chase Burns | Number Change | RHP Chase Burns changed number to 42. |
| Apr 15 | Spencer Steer | Number Change | 1B Spencer Steer changed number to 42. |
| Apr 15 | Rece Hinds | Number Change | RF Rece Hinds changed number to 42. |
| Apr 15 | Graham Ashcraft | Number Change | RHP Graham Ashcraft changed number to 42. |
| Apr 14 | Rece Hinds | Recalled | Cincinnati Reds recalled RF Rece Hinds from Louisville Bats. |
| Apr 13 | — | Trade | Cincinnati Reds traded 1B Christian Encarnacion-Strand to Baltimore Orioles for cash. |
| Apr 13 | Noelvi Marte | Optioned | Cincinnati Reds optioned OF Noelvi Marte to Louisville Bats. |
| Apr 12 | Christian Encarnacion-Strand | Status Change | 1B Christian Encarnacion-Strand roster status changed by Cincinnati Reds. |
| Apr 10 | Jose Franco | Optioned | Cincinnati Reds optioned RHP Jose Franco to Louisville Bats. |
| Apr 10 | Kyle Nicolas | Recalled | Cincinnati Reds recalled RHP Kyle Nicolas from Louisville Bats. |
| Apr 8 | P.J. Higgins | Selected | Cincinnati Reds selected the contract of C P.J. Higgins from Louisville Bats. |
| Apr 8 | Christian Encarnacion-Strand | Designated for Assignment | Cincinnati Reds designated 1B Christian Encarnacion-Strand for assignment. |
| Apr 8 | Jose Trevino | Status Change | Cincinnati Reds placed C Jose Trevino on the 10-day injured list retroactive to April 5, 2026. Thoracic spine strain. |
| Apr 2 | Mikel Nieblas | Signed as Free Agent | Cincinnati Reds signed free agent C Mikel Nieblas to a minor league contract. |
| Apr 1 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Daytona Tortugas. |
| Apr 1 | Nick Lodolo | Assigned | Cincinnati Reds sent LHP Nick Lodolo on a rehab assignment to Daytona Tortugas. |
| Mar 27 | Andrew Chafin | Signed as Free Agent | Cincinnati Reds signed free agent LHP Andrew Chafin to a minor league contract. |
| Mar 25 | Jose Franco | Recalled | Cincinnati Reds recalled RHP Jose Franco from Louisville Bats. |
| Mar 25 | Caleb Ferguson | Status Change | Cincinnati Reds placed LHP Caleb Ferguson on the 15-day injured list retroactive to March 22, 2026. Oblique muscle strain. |
| Mar 25 | Nick Lodolo | Status Change | Cincinnati Reds placed LHP Nick Lodolo on the 15-day injured list retroactive to March 23, 2026. Left index finger blister. |
| Mar 23 | Hunter Greene | Status Change | Cincinnati Reds placed RHP Hunter Greene on the 60-day injured list. Right elbow surgery. |
| Mar 23 | Nathaniel Lowe | Selected | Cincinnati Reds selected the contract of 1B Nathaniel Lowe from Louisville Bats. |
| Mar 22 | Malvin Valdez | Released | Cincinnati Reds released CF Malvin Valdez. |
| Mar 22 | Myles Smith | Released | Cincinnati Reds released OF Myles Smith. |
| Mar 22 | Adrian Herrera | Released | Cincinnati Reds released RHP Adrian Herrera. |
| Mar 22 | Austin Callahan | Released | Cincinnati Reds released 3B Austin Callahan. |
| Mar 22 | Kyle Nicolas | Optioned | Cincinnati Reds optioned RHP Kyle Nicolas to Louisville Bats. |
| Mar 21 | Yeycol Soriano | Assigned | CF Yeycol Soriano assigned to Cincinnati Reds. |
| Mar 21 | Naibel Mariano | Assigned | SS Naibel Mariano assigned to Cincinnati Reds. |
| Mar 21 | Zach Maxwell | Optioned | Cincinnati Reds optioned RHP Zach Maxwell to Louisville Bats. |
| Mar 21 | Rece Hinds | Optioned | Cincinnati Reds optioned RF Rece Hinds to Louisville Bats. |
| Mar 21 | JJ Bleday | Optioned | Cincinnati Reds optioned CF JJ Bleday to Louisville Bats. |
| Mar 20 | Pablo Aliendo | Signed as Free Agent | Cincinnati Reds signed free agent C Pablo Aliendo to a minor league contract. |
| Mar 20 | Henry Hunter | Assigned | C Henry Hunter assigned to Cincinnati Reds. |
| Mar 18 | Luis Mey | Optioned | Cincinnati Reds optioned RHP Luis Mey to Louisville Bats. |
| Mar 18 | Joseph Menefee | Assigned | LHP Joseph Menefee assigned to Cincinnati Reds. |
| Mar 18 | Jacob Edwards | Assigned | LHP Jacob Edwards assigned to Cincinnati Reds. |
| Mar 18 | Adolfo Sanchez | Assigned | OF Adolfo Sanchez assigned to Cincinnati Reds. |
| Mar 18 | Drew Pestka | Assigned | RHP Drew Pestka assigned to Cincinnati Reds. |
| Mar 17 | Drew Davies | Assigned | LF Drew Davies assigned to Cincinnati Reds. |
| Mar 17 | Yanuel Casiano | Assigned | C Yanuel Casiano assigned to Cincinnati Reds. |
| Mar 16 | Malvin Valdez | Assigned | CF Malvin Valdez assigned to Cincinnati Reds. |
| Mar 16 | Ian Francis | Assigned | C Ian Francis assigned to Cincinnati Reds. |
| Mar 16 | Kyle McCoy | Assigned | LHP Kyle McCoy assigned to Cincinnati Reds. |
| Mar 16 | Blake Dunn | Optioned | Cincinnati Reds optioned LF Blake Dunn to Louisville Bats. |
| Mar 15 | Anielson Buten | Assigned | 2B Anielson Buten assigned to Cincinnati Reds. |
| Mar 15 | Jirvin Morillo | Assigned | C Jirvin Morillo assigned to Cincinnati Reds. |
| Mar 15 | Victor Diaz | Assigned | RHP Victor Diaz assigned to Cincinnati Reds. |
| Mar 14 | Brandon Jaime | Assigned | C Brandon Jaime assigned to Cincinnati Reds. |
| Mar 14 | Jonah Hurney | Assigned | LHP Jonah Hurney assigned to Cincinnati Reds. |
| Mar 14 | Stephen Quigley | Assigned | RHP Stephen Quigley assigned to Cincinnati Reds. |
| Mar 14 | David Lorduy | Assigned | RHP David Lorduy assigned to Cincinnati Reds. |
| Mar 13 | Brody Jessee | Status Change | RHP Brody Jessee roster status changed by Cincinnati Reds. |
| Mar 13 | Anthuan Valencia | Assigned | 3B Anthuan Valencia assigned to Cincinnati Reds. |
| Mar 13 | Griffin Green | Assigned | RHP Griffin Green assigned to Cincinnati Reds. |
| Mar 13 | Dylan Simmons | Assigned | RHP Dylan Simmons assigned to Cincinnati Reds. |
| Mar 13 | Ivan Johnson | Assigned | 2B Ivan Johnson assigned to Cincinnati Reds. |
| Mar 13 | Mike Villani | Assigned | RHP Mike Villani assigned to Cincinnati Reds. |
| Mar 13 | Jose Montero | Assigned | RHP Jose Montero assigned to Cincinnati Reds. |
| Mar 13 | Brody Jessee | Assigned | RHP Brody Jessee assigned to Cincinnati Reds. |
| Mar 12 | Luke Hayden | Assigned | RHP Luke Hayden assigned to Cincinnati Reds. |
| Mar 11 | Adrian Herrera | Assigned | RHP Adrian Herrera assigned to Cincinnati Reds. |
| Mar 11 | Brandon Leibrandt | Assigned | LHP Brandon Leibrandt assigned to Cincinnati Reds. |
| Mar 10 | Victor Acosta | Assigned | SS Victor Acosta assigned to Cincinnati Reds. |
| Mar 9 | Alfredo Alcantara | Assigned | SS Alfredo Alcantara assigned to Cincinnati Reds. |
| Mar 9 | Myles Smith | Assigned | OF Myles Smith assigned to Cincinnati Reds. |
| Mar 9 | Easton Sikorski | Assigned | RHP Easton Sikorski assigned to Cincinnati Reds. |
| Mar 9 | Chase Petty | Optioned | Cincinnati Reds optioned RHP Chase Petty to Louisville Bats. |
| Mar 9 | Christian Encarnacion-Strand | Optioned | Cincinnati Reds optioned 1B Christian Encarnacion-Strand to Louisville Bats. |
| Mar 8 | Austin Hendrick | Assigned | RF Austin Hendrick assigned to Cincinnati Reds. |
| Mar 8 | Esmith Pineda | Assigned | RF Esmith Pineda assigned to Cincinnati Reds. |
| Mar 8 | Kien Vu | Assigned | OF Kien Vu assigned to Cincinnati Reds. |
| Mar 8 | Rafhlmil Torres | Assigned | SS Rafhlmil Torres assigned to Cincinnati Reds. |
| Mar 8 | Hansel Jimenez | Assigned | 3B Hansel Jimenez assigned to Cincinnati Reds. |
| Mar 8 | Zavier Warren | Assigned | 1B Zavier Warren assigned to Cincinnati Reds. |
| Mar 8 | Dayne Leonard | Assigned | C Dayne Leonard assigned to Cincinnati Reds. |
| Mar 8 | Thomas Farr | Assigned | RHP Thomas Farr assigned to Cincinnati Reds. |
| Mar 8 | Mason Neville | Assigned | OF Mason Neville assigned to Cincinnati Reds. |
| Mar 8 | Trey Faltine | Assigned | 2B Trey Faltine assigned to Cincinnati Reds. |
| Mar 8 | Ruben Ibarra | Assigned | 1B Ruben Ibarra assigned to Cincinnati Reds. |
| Mar 8 | Johnny Ascanio | Assigned | SS Johnny Ascanio assigned to Cincinnati Reds. |
| Mar 8 | Austin Callahan | Assigned | 3B Austin Callahan assigned to Cincinnati Reds. |
| Mar 8 | Peyton Stovall | Assigned | 2B Peyton Stovall assigned to Cincinnati Reds. |
| Mar 8 | Jimmy Romano | Assigned | RHP Jimmy Romano assigned to Cincinnati Reds. |
| Mar 8 | Brady Afthim | Assigned | RHP Brady Afthim assigned to Cincinnati Reds. |
| Mar 6 | Carlos Sanchez | Assigned | 3B Carlos Sanchez assigned to Cincinnati Reds. |
| Mar 6 | Ryan McCrystal | Assigned | C Ryan McCrystal assigned to Cincinnati Reds. |
| Mar 6 | Johnathan Lavallee | Assigned | RHP Johnathan Lavallee assigned to Cincinnati Reds. |
| Mar 6 | Julian Aguiar | Optioned | Cincinnati Reds optioned RHP Julian Aguiar to Louisville Bats. |
| Mar 6 | Héctor Rodríguez | Optioned | Cincinnati Reds optioned LF Héctor Rodríguez to Louisville Bats. |
| Mar 6 | Jose Franco | Optioned | Cincinnati Reds optioned RHP Jose Franco to Louisville Bats. |
| Mar 6 | Leo Balcazar | Optioned | Cincinnati Reds optioned SS Leo Balcazar to Chattanooga Lookouts. |
| Mar 6 | Edwin Arroyo | Optioned | Cincinnati Reds optioned SS Edwin Arroyo to Louisville Bats. |
| Mar 5 | Alfredo Duno | Assigned | C Alfredo Duno assigned to Cincinnati Reds. |
| Mar 4 | Tyler Callihan | Trade | Cincinnati Reds traded LF Tyler Callihan to Pittsburgh Pirates for RHP Kyle Nicolas. |
| Feb 28 | Francisco Urbaez | Assigned | 2B Francisco Urbaez assigned to Cincinnati Reds. |
| Feb 28 | Anthony Stephan | Assigned | OF Anthony Stephan assigned to Cincinnati Reds. |
| Feb 28 | Steele Hall | Assigned | SS Steele Hall assigned to Cincinnati Reds. |
| Feb 27 | Yerlin Confidan | Assigned | LF Yerlin Confidan assigned to Cincinnati Reds. |
| Feb 27 | Alexander Vargas | Assigned | SS Alexander Vargas assigned to Cincinnati Reds. |
| Feb 27 | Tyson Lewis | Assigned | SS Tyson Lewis assigned to Cincinnati Reds. |
| Feb 27 | Diego Omana | Assigned | C Diego Omana assigned to Cincinnati Reds. |
| Feb 27 | Jared Lyons | Assigned | RHP Jared Lyons assigned to Cincinnati Reds. |
| Feb 27 | Nestor Lorant | Assigned | RHP Nestor Lorant assigned to Cincinnati Reds. |
| Feb 26 | Taylor Floyd | Assigned | RHP Taylor Floyd assigned to Cincinnati Reds. |
| Feb 26 | JeanPierre Ortiz | Assigned | RHP JeanPierre Ortiz assigned to Cincinnati Reds. |
| Feb 25 | Kyle Henley | Assigned | CF Kyle Henley assigned to Cincinnati Reds. |
| Feb 25 | Dominic Pitelli | Assigned | SS Dominic Pitelli assigned to Cincinnati Reds. |
| Feb 25 | Cade Hunter | Assigned | C Cade Hunter assigned to Cincinnati Reds. |
| Feb 24 | Trevor Kuncl | Assigned | RHP Trevor Kuncl assigned to Cincinnati Reds. |
| Feb 24 | Davis Daniel | Assigned | RHP Davis Daniel assigned to Cincinnati Reds. |
| Feb 24 | Sam Benschoter | Assigned | RHP Sam Benschoter assigned to Cincinnati Reds. |
| Feb 24 | Nate Peterson | Assigned | LHP Nate Peterson assigned to Cincinnati Reds. |
| Feb 24 | Simon Miller | Assigned | RHP Simon Miller assigned to Cincinnati Reds. |
| Feb 22 | Carlos Jorge | Assigned | CF Carlos Jorge assigned to Cincinnati Reds. |
| Feb 22 | Irvin Machuca | Assigned | RHP Irvin Machuca assigned to Cincinnati Reds. |
| Feb 22 | Julian Garcia | Assigned | RHP Julian Garcia assigned to Cincinnati Reds. |
| Feb 22 | Nick Sando | Assigned | LHP Nick Sando assigned to Cincinnati Reds. |
| Feb 21 | Johnathan Lavallee | Signed as Free Agent | Cincinnati Reds signed free agent RHP Johnathan Lavallee to a minor league contract. |
| Feb 21 | Riley Cooper | Signed as Free Agent | Cincinnati Reds signed free agent LHP Riley Cooper to a minor league contract. |
| Feb 21 | Kevin Abel | Assigned | RHP Kevin Abel assigned to Cincinnati Reds. |
| Feb 21 | Hunter Parks | Assigned | RHP Hunter Parks assigned to Cincinnati Reds. |
| Feb 21 | Will Cannon | Assigned | RHP Will Cannon assigned to Cincinnati Reds. |
| Feb 21 | Jay Allen II | Assigned | CF Jay Allen II assigned to Cincinnati Reds. |
| Feb 14 | Nathaniel Lowe | Signed as Free Agent | Cincinnati Reds signed free agent 1B Nathaniel Lowe to a minor league contract and invited him to spring training. |
| Feb 12 | Luis Polo | Signed as Free Agent | Cincinnati Reds signed free agent RHP Luis Encarnacion to a minor league contract. |
| Feb 9 | Anderson Venero | Signed as Free Agent | Cincinnati Reds signed free agent RHP Anderson Venero to a minor league contract. |
| Feb 6 | Ben Rortvedt | Claimed Off Waivers | Los Angeles Dodgers claimed C Ben Rortvedt off waivers from Cincinnati Reds. |
| Feb 3 | Ben Rortvedt | Designated for Assignment | Cincinnati Reds designated C Ben Rortvedt for assignment. |
| Feb 3 | Eugenio Suárez | Signed as Free Agent | Cincinnati Reds signed free agent 3B Eugenio Suárez. |
| Jan 28 | Darren McCaughan | Signed as Free Agent | Cincinnati Reds signed free agent RHP Darren McCaughan to a minor league contract and invited him to spring training. |
| Jan 23 | Michael Trautwein | Status Change | C Michael Trautwein roster status changed by Cincinnati Reds. |
| Jan 23 | Michael Trautwein | Assigned | Cincinnati Reds invited non-roster C Michael Trautwein to spring training. |
| Jan 23 | Yunior Marte | Status Change | RHP Yunior Marte roster status changed by Cincinnati Reds. |
| Jan 23 | Yunior Marte | Signed as Free Agent | Cincinnati Reds signed free agent RHP Yunior Marte to a minor league contract and invited him to spring training. |
| Jan 23 | P.J. Higgins | Assigned | Cincinnati Reds invited non-roster C P.J. Higgins to spring training. |
| Jan 23 | Cam Collier | Assigned | Cincinnati Reds invited non-roster 3B Cam Collier to spring training. |
| Jan 23 | Connor Burns | Assigned | Cincinnati Reds invited non-roster C Connor Burns to spring training. |
| Jan 22 | Davis Daniel | Signed as Free Agent | Cincinnati Reds signed free agent RHP Davis Daniel to a minor league contract. |
| Jan 22 | Anthony Misiewicz | Signed as Free Agent | Cincinnati Reds signed free agent LHP Anthony Misiewicz to a minor league contract and invited him to spring training. |
| Jan 21 | Shane Sasaki | Status Change | CF Shane Sasaki roster status changed by Cincinnati Reds. |
| Jan 21 | Shane Sasaki | Signed as Free Agent | Cincinnati Reds signed free agent CF Shane Sasaki to a minor league contract. |
| Jan 15 | Diego Pacheco | Signed as Free Agent | Cincinnati Reds signed free agent C Diego Pacheco to a minor league contract. |
| Jan 15 | Yosver Zulueta | Trade | Cincinnati Reds traded RHP Yosver Zulueta to Seattle Mariners for RHP Dusty Revis. |
| Jan 15 | Alexander Cuello | Signed as Free Agent | Cincinnati Reds signed free agent SS Alexander Cuello to a minor league contract. |
| Jan 15 | Luis Delgado | Signed as Free Agent | Cincinnati Reds signed free agent RHP Luis Delgado to a minor league contract. |
| Jan 15 | Eliezer Arias | Signed as Free Agent | Cincinnati Reds signed free agent 2B Eliezer Arias to a minor league contract. |
| Jan 15 | Nishentel Meyers | Signed as Free Agent | Cincinnati Reds signed free agent 2B Nishentel Meyers to a minor league contract. |
| Jan 15 | Juandy Romero | Signed as Free Agent | Cincinnati Reds signed free agent 2B Juandy Romero to a minor league contract. |
| Jan 15 | Angel Nuñez | Signed as Free Agent | Cincinnati Reds signed free agent OF Angel Nunez Jr. to a minor league contract. |
| Jan 15 | Gilventon Josephina | Signed as Free Agent | Cincinnati Reds signed free agent OF Gilventon Josephina to a minor league contract. |
| Jan 15 | Carlos Goncalves | Signed as Free Agent | Cincinnati Reds signed free agent C Carlos Goncalves to a minor league contract. |
| Jan 15 | Daniel Burgos | Signed as Free Agent | Cincinnati Reds signed free agent RHP Daniel Burgos to a minor league contract. |
| Jan 15 | Xander Nolasco | Signed as Free Agent | Cincinnati Reds signed free agent SS Xander Nolasco to a minor league contract. |
| Jan 15 | Ronny Felix | Signed as Free Agent | Cincinnati Reds signed free agent OF Ronny Felix to a minor league contract. |
| Jan 15 | Jose Saldana | Signed as Free Agent | Cincinnati Reds signed free agent RHP Jose Saldana to a minor league contract. |
| Jan 15 | Carlos Hernandez | Signed as Free Agent | Cincinnati Reds signed free agent SS Carlos Hernandez to a minor league contract. |
| Jan 15 | Jose Colina | Signed as Free Agent | Cincinnati Reds signed free agent OF Jose Colina to a minor league contract. |
| Jan 15 | Eider Gutierrez | Signed as Free Agent | Cincinnati Reds signed free agent OF Eider Gutierrez to a minor league contract. |
| Jan 15 | Pierce Johnson | Signed as Free Agent | Cincinnati Reds signed free agent RHP Pierce Johnson. |
| Jan 15 | Yosver Zulueta | Designated for Assignment | Cincinnati Reds designated RHP Yosver Zulueta for assignment. |
| Jan 7 | Michael Toglia | Status Change | 1B Michael Toglia roster status changed by Cincinnati Reds. |
| Jan 7 | Hagen Danner | Status Change | RHP Hagen Danner roster status changed by Cincinnati Reds. |
| Jan 7 | Michael Toglia | Signed as Free Agent | Cincinnati Reds signed free agent 1B Michael Toglia to a minor league contract. |
| Jan 7 | Hagen Danner | Signed as Free Agent | Cincinnati Reds signed free agent RHP Hagen Danner to a minor league contract. |
| Jan 7 | Lyon Richardson | Outrighted | Cincinnati Reds sent RHP Lyon Richardson outright to Louisville Bats. |
| Jan 7 | Keegan Thompson | Claimed Off Waivers | Colorado Rockies claimed RHP Keegan Thompson off waivers from Cincinnati Reds. |