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| 2024-04-04 00:00:00 | Las Vegas Dark Knights | | Demoted | Taylor Parker | Knoxville Wampus Cats |
| 2024-04-04 00:00:00 | Orlando Bombers | | Demoted | Joseph Spence | Ottawa Mt. Hawks |
| 2024-04-04 00:00:00 | San Francisco Golden Gators | | Demoted | Alexander James | Little Rock Fighting Farmers |
| 2024-04-04 00:00:00 | Denver Ferris Wheels | | Demoted | William Lawrence | Mexico City Aztecs |
| 2024-04-03 11:53:03 | San Diego Sabercats | 2nd round pick in season 39 | Acquired via trade | 2nd round pick in season 40 | New Orleans Hurricanes |
| 2024-04-03 00:00:00 | San Diego Sabercats | | Demoted | Liam Stockstill | Santiago Sharks |
| 2024-04-03 00:00:00 | San Diego Sabercats | | Demoted | Tyree Mitchell | Santiago Sharks |
| 2024-04-03 00:00:00 | San Diego Sabercats | | Demoted | Noah Jordan | Santiago Sharks |
| 2024-04-03 00:00:00 | Kansas City Wildcats | | Demoted | Jon Desir | Santa Fe Zeppelins |
| 2024-04-03 00:00:00 | Las Vegas Dark Knights | | Drop | Eric Simpson | |
| 2024-04-03 00:00:00 | Knoxville Wampus Cats | | Promoted | Dillan Walker | Las Vegas Dark Knights |
| 2024-04-03 00:00:00 | Las Vegas Dark Knights | | Demoted | Timothy Monroe | Knoxville Wampus Cats |
| 2024-04-02 00:00:00 | Tampa Runner-ups | | Promoted | Brian Kitchens | Atlanta Eels |
| 2024-04-02 00:00:00 | Clarksville River Bandits | | Promoted | Devon Owens | Chicago Hilltoppers |
| 2024-04-02 00:00:00 | Mexico City Aztecs | | Promoted | Christopher Rolf | Denver Ferris Wheels |
| 2024-04-02 00:00:00 | Denver Ferris Wheels | | Demoted | Dakota Rogers | Mexico City Aztecs |
| 2024-04-02 00:00:00 | Chicago Hilltoppers | | Demoted | Ryan Davis | Clarksville River Bandits |
| 2024-04-02 00:00:00 | Tampa Runner-ups | | Promoted | Justin Cox | Atlanta Eels |
| 2024-04-02 00:00:00 | St. Louis 5th Alarm | | Demoted | Joseph Costigan | Caracas Crocodiles |
| 2024-04-02 00:00:00 | Atlanta Eels | | Demoted | Adrian Kim Jr | Tampa Runner-ups |
| 2024-04-02 00:00:00 | Dallas Hounds | | Demoted | Jacob Jones | Norfolk Wolves |
| 2024-04-01 10:01:23 | Salt Lake City Night Hawks | 1st round pick in season 39 | Acquired via trade | Rudy Abeyta | Louisville Colonels |
| 2024-04-01 10:01:23 | Salt Lake City Night Hawks | | Acquired via trade | 1st round pick in season 39 | Louisville Colonels |
| 2024-04-01 00:00:00 | Quebec Buzz | | Promoted | Karl Johnson | Los Angeles Cacti |
| 2024-04-01 00:00:00 | Los Angeles Cacti | | Demoted | Austin Hill | Quebec Buzz |