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| 2024-01-24 00:00:00 | South Dakota Blackhawks | | Promoted | Devon Hostetler | Philadelphia Assassins |
| 2024-01-24 00:00:00 | Philadelphia Assassins | | Demoted | Matheo Thomas | South Dakota Blackhawks |
| 2024-01-24 00:00:00 | Philadelphia Assassins | | Demoted | Zachary Schaaf | South Dakota Blackhawks |
| 2024-01-24 00:00:00 | Philadelphia Assassins | | Demoted | Jeffery Carr | South Dakota Blackhawks |
| 2024-01-24 00:00:00 | Indianapolis Tornadoes | | Demoted | Nicholas Johnson | Buenos Aires Eagles |
| 2024-01-24 00:00:00 | Buenos Aires Eagles | | Promoted | Nicholas Johnson | Indianapolis Tornadoes |
| 2024-01-23 20:16:13 | Milwaukee Sundancers | Jonah Bernhardt | Acquired via waivers | Grant Gallimore | Waiver |
| 2024-01-23 17:49:21 | Las Vegas Dark Knights | 2nd round pick in season 40 | Acquired via trade | | Philadelphia Assassins |
| 2024-01-23 15:23:58 | Philadelphia Assassins | 3rd round pick in season 40 | Acquired via trade | | San Diego Sabercats |
| 2024-01-20 00:00:00 | Winnipeg Warriors | | Promoted | Grant Gallimore | Milwaukee Sundancers |
| 2024-01-20 00:00:00 | Milwaukee Sundancers | | Demoted | Benjamin Constant | Winnipeg Warriors |
| 2024-01-20 00:00:00 | Salt Lake City Night Hawks | | Drop | Noah Todd | |
| 2024-01-20 00:00:00 | Phoenix Kangaroos | | Demoted | Isidro Mosley | San Juan Devils |
| 2024-01-20 00:00:00 | San Juan Devils | | Promoted | Marlon Riley | Phoenix Kangaroos |
| 2024-01-20 00:00:00 | Phoenix Kangaroos | Isidro Mosley | Add/Drop | Jonah Bernhardt | |
| 2024-01-19 00:00:00 | Little Rock Fighting Farmers | | Promoted | David Coldwell | San Francisco Golden Gators |
| 2024-01-17 00:00:00 | Kansas City Wildcats | | Drop | Andrew Hagan | |
| 2024-01-16 00:00:00 | Tampa Runner-ups | | Promoted | Justin Cox | Atlanta Eels |
| 2024-01-15 15:45:15 | Milwaukee Sundancers | Kaleb Koss | Acquired via waivers | Ollie Gammel | Waiver |
| 2024-01-14 00:00:00 | Clarksville River Bandits | | Promoted | Antonio Wims | Chicago Hilltoppers |
| 2024-01-14 00:00:00 | Chicago Hilltoppers | | Drop | Henry Sheehan | |
| 2024-01-14 00:00:00 | Chicago Hilltoppers | | Drop | Desmond Jean | |
| 2024-01-12 00:00:00 | Little Rock Fighting Farmers | | Promoted | Richard Walker | San Francisco Golden Gators |
| 2024-01-12 00:00:00 | San Francisco Golden Gators | | Demoted | David Coldwell | Little Rock Fighting Farmers |
| 2024-01-11 00:00:00 | Kansas City Wildcats | Nicholas Clarke | Add/Drop | | |