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| 2023-12-03 00:00:00 | Seattle Cougars | | Demoted | Bryon Marcucci | Vancouver Mounties |
| 2023-12-03 00:00:00 | Kansas City Wildcats | | Demoted | Ricardo Parker | Santa Fe Zeppelins |
| 2023-12-03 00:00:00 | Cincinnati Skyliners | | Demoted | Trinidad Wright | Sao Paulo Jackalopes |
| 2023-12-03 00:00:00 | Santa Fe Zeppelins | | Promoted | Jeffery Carr | Kansas City Wildcats |
| 2023-12-03 00:00:00 | Ottawa Mt. Hawks | | Promoted | Jack Hunter | Orlando Bombers |
| 2023-12-03 00:00:00 | Orlando Bombers | | Demoted | Richard Orenstein | Ottawa Mt. Hawks |
| 2023-12-03 00:00:00 | Orlando Bombers | | Demoted | Cole Knouse | Ottawa Mt. Hawks |
| 2023-12-03 00:00:00 | Orlando Bombers | | Drop | Jonathan Lewis | |
| 2023-12-02 15:57:41 | Atlanta Eels | Justin Cox | Acquired via trade | 2nd round pick in season 38 | San Diego Sabercats |
| 2023-12-02 15:57:41 | Atlanta Eels | | Acquired via trade | 3rd round pick in season 38 | San Diego Sabercats |
| 2023-12-02 00:00:00 | Phoenix Kangaroos | | Demoted | Seth Lane | San Juan Devils |
| 2023-12-02 00:00:00 | Mexico City Aztecs | | Promoted | Marshall Gilmore | Denver Ferris Wheels |
| 2023-12-02 00:00:00 | Denver Ferris Wheels | | Demoted | Dakota Rogers | Mexico City Aztecs |
| 2023-12-02 00:00:00 | Seattle Cougars | | Demoted | James Poma | Vancouver Mounties |
| 2023-12-02 00:00:00 | St. Louis 5th Alarm | | Demoted | Joseph Odonnell | Caracas Crocodiles |
| 2023-12-02 00:00:00 | Indianapolis Tornadoes | | Demoted | Alexander Smyth | Buenos Aires Eagles |
| 2023-12-02 00:00:00 | Dallas Hounds | | Demoted | Thomas Halasz | Norfolk Wolves |
| 2023-12-02 00:00:00 | Tampa Runner-ups | | Promoted | Justin Cooper | Atlanta Eels |
| 2023-12-01 07:59:44 | Philadelphia Assassins | Jose Combs | Acquired via trade | 1st round pick in season 38 | Louisville Colonels |
| 2023-12-01 07:59:44 | Philadelphia Assassins | 2nd round pick in season 39 | Acquired via trade | 1st round pick in season 39 | Louisville Colonels |
| 2023-12-01 00:00:00 | Salt Lake City Night Hawks | | Demoted | Luis Torrence | Toronto Huskies |
| 2023-12-01 00:00:00 | Salt Lake City Night Hawks | | Demoted | Royce Hegland | Toronto Huskies |
| 2023-12-01 00:00:00 | New York Warriors | | Demoted | Jeffrey Benjamin | Hartford Hebrew Hammers |
| 2023-12-01 00:00:00 | Cleveland Weasels | | Demoted | Brandon Haliburton | Pittsburgh Berserkers |
| 2023-12-01 00:00:00 | Syracuse River Rats | | Promoted | Deep Green | Houston Octopods |