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| 2023-12-18 00:00:00 | Phoenix Kangaroos | | Demoted | Jalen Griffin | San Juan Devils |
| 2023-12-18 00:00:00 | Houston Octopods | | Demoted | Christian Miller | Syracuse River Rats |
| 2023-12-18 00:00:00 | Seattle Cougars | | Demoted | Terry Lombardo | Vancouver Mounties |
| 2023-12-15 00:00:00 | New Orleans Hurricanes | | Drop | Steven Asher | |
| 2023-12-15 00:00:00 | Detroit Gear Daddies | | Promoted | James Wiley | New Orleans Hurricanes |
| 2023-12-15 00:00:00 | Detroit Gear Daddies | | Promoted | Drew Myers | New Orleans Hurricanes |
| 2023-12-15 00:00:00 | New Orleans Hurricanes | | Demoted | Benjamin Barrett | Detroit Gear Daddies |
| 2023-12-15 00:00:00 | Detroit Gear Daddies | | Promoted | Isaiah Schieffer | New Orleans Hurricanes |
| 2023-12-14 15:41:15 | San Francisco Golden Gators | Elmer Robinson | Acquired via trade | 2nd round pick in season 39 | San Diego Sabercats |
| 2023-12-14 15:41:15 | San Francisco Golden Gators | | Acquired via trade | 3rd round pick in season 39 | San Diego Sabercats |
| 2023-12-14 15:40:29 | Cleveland Weasels | Arthur Fernandez | Acquired via trade | 2nd round pick in season 39 | San Diego Sabercats |
| 2023-12-14 15:40:29 | Cleveland Weasels | Kyle King | Acquired via trade | | San Diego Sabercats |
| 2023-12-14 00:00:00 | Cleveland Weasels | | Demoted | Kevin Rushing | Pittsburgh Berserkers |
| 2023-12-14 00:00:00 | Santiago Sharks | | Promoted | Alexis Monroe | San Diego Sabercats |
| 2023-12-14 00:00:00 | Santiago Sharks | | Promoted | Daniel Covington | San Diego Sabercats |
| 2023-12-12 00:00:00 | Indianapolis Tornadoes | | Demoted | Kegan Lemery | Buenos Aires Eagles |
| 2023-12-11 00:00:00 | San Diego Sabercats | | Drop | Kevin Wright | |
| 2023-12-11 00:00:00 | San Francisco Golden Gators | | Demoted | David Coldwell | Little Rock Fighting Farmers |
| 2023-12-11 00:00:00 | Dallas Hounds | | Demoted | Isidro Mosley | Norfolk Wolves |
| 2023-12-11 00:00:00 | Mexico City Aztecs | | Promoted | Seth Talbert | Denver Ferris Wheels |
| 2023-12-11 00:00:00 | Denver Ferris Wheels | | Demoted | Timothy Rebollar | Mexico City Aztecs |
| 2023-12-11 00:00:00 | Denver Ferris Wheels | | Demoted | Caleb Aiken | Mexico City Aztecs |
| 2023-12-11 00:00:00 | New Orleans Hurricanes | | Demoted | Zachary Roebuck | Detroit Gear Daddies |
| 2023-12-11 00:00:00 | New Orleans Hurricanes | | Demoted | Jacob McCaskill | Detroit Gear Daddies |
| 2023-12-11 00:00:00 | Cleveland Weasels | | Demoted | Evan Cummings | Pittsburgh Berserkers |