| Date | Transaction |
| 02-28-2055 | Mark Sellers has retired from football. |
| 08-04-2053 | The New Jersey Sharks have waived Mark Sellers. |
| 10-07-2052 | The New Jersey Sharks have moved Eric Jones and Luke Saindon to the active roster. The New Jersey Sharks have moved Mark Sellers and Rob Repko to the inactive roster. |
| 09-09-2052 | The New Jersey Sharks have moved Mark Sellers to the active roster. The New Jersey Sharks have moved Mitch Carmichael to the inactive roster. |
| 09-09-2052 | The New Jersey Sharks have acquired Mark Sellers from the waiver wire. |
| 09-01-2052 | The Providence Scorpions have waived Mark Sellers. |
| 08-07-2051 | The Providence Scorpions have moved Mark Carano, Henry Howard, Mel Roberson, and Greg Kliebhan to the active roster. The Providence Scorpions have moved Jack Rentie, Mark Sellers, Andrew Estes, and Jay Madigan to the inactive roster. |
| 11-14-2050 | The Providence Scorpions have moved Mark Sellers to the active roster. The Providence Scorpions have moved Rube Combs to the inactive roster. |
| 09-12-2050 | The Providence Scorpions have acquired Mark Sellers from the waiver wire. |
| 09-05-2050 | The Miami Mambas have waived Mark Sellers. |
| 08-22-2050 | The Miami Mambas have moved Mark Sellers and Ron Laidlaw to the active roster. The Miami Mambas have moved Forrest Herring to the inactive roster. |
| 08-22-2050 | The Miami Mambas have moved Charles Christensen, George Lott, Herb Broughton, and Troy Leicht to the active roster. The Miami Mambas have moved Doug Smith, Foster Davis, Mark Sellers, Bob Johnson, and Randy Harris to the inactive roster. |
| 08-21-2050 | Mark Sellers of the Miami Mambas is injured with a mild concussion and is expected to be out for approximately 7 days. |
| 12-13-2049 | The Miami Mambas have moved Mark Sellers to the active roster. The Miami Mambas have moved Gene Bolinger to the inactive roster. |
| 11-29-2049 | The Miami Mambas have moved Sherman Evans, Bobby Hill, Gene Bolinger, and Sammy Starkey to the active roster. The Miami Mambas have moved Tom Davis, Mark Sellers, Mike Gorinski, and Ron Frey to the inactive roster. |
| 11-15-2049 | The Miami Mambas have moved Jarmar Booth, Tom Davis, and Mark Sellers to the active roster. The Miami Mambas have moved Ken Christman, Gene Bolinger, and Sammy Starkey to the inactive roster. |
| 11-08-2049 | The Miami Mambas have moved Walt Marshall, Ken Christman, and Gene Bolinger to the active roster. The Miami Mambas have moved Mark Sellers, Tom Davis, and Ron Frey to the inactive roster. |
| 09-20-2049 | The Miami Mambas have moved Mark Sellers to the active roster. The Miami Mambas have moved Gene Bolinger to the inactive roster. |
| 09-20-2049 | The Miami Mambas have acquired Mark Sellers from the waiver wire. |
| 09-13-2049 | The San Jose Kolts have waived Mark Sellers. |
| 05-02-2049 | The San Jose Kolts have moved Mark Sellers to the active roster. The San Jose Kolts have moved Steve Lamontagne to the inactive roster. |
| 12-28-2048 | The San Jose Kolts have moved Scott Hill, John Scharer, and Steve Brown to the active roster. The San Jose Kolts have moved Mike Ream, Mark Martin, and Mark Sellers to the inactive roster. |
| 12-21-2048 | The San Jose Kolts have moved Mark Martin, Mark Sellers, and Jack Whitehurst to the active roster. The San Jose Kolts have moved Mike Skinner, Steve Brown, and Scott Hill to the inactive roster. |
| 12-06-2048 | The San Jose Kolts have moved Steve Brown and Steve Lamontagne to the active roster. The San Jose Kolts have moved Mark Martin and Mark Sellers to the inactive roster. |
| 10-19-2048 | The San Jose Kolts have moved Mark Sellers to the active roster. The San Jose Kolts have moved Steve Lamontagne to the inactive roster. |
| 10-05-2048 | The San Jose Kolts have moved Steve Lamontagne to the active roster. The San Jose Kolts have moved Mark Sellers to the inactive roster. |
| 08-20-2046 | The San Jose Kolts have moved Mark Sellers, Alvin Givens, Mike Ream, and Eric Wehba to the active roster. |
| 08-12-2046 | The San Jose Kolts have moved Keiron Hultz to the active roster. The San Jose Kolts have moved Mark Sellers to the inactive roster. |
| 08-12-2046 | Mark Sellers of the San Jose Kolts is injured with a groin pull and is expected to be out for approximately 8 days. |
| 09-13-2043 | The Baltimore Kolts have changed Linden Sellers's name to Mark Sellers. |
| 08-24-2043 | The Baltimore Kolts have acquired Linden Sellers from the waiver wire. |
| 08-16-2043 | The San Francisco Cylons have waived Linden Sellers. |
| 08-10-2043 | The San Francisco Cylons have moved Linden Sellers to the active roster. The San Francisco Cylons have moved John Frazier to the inactive roster. |
| 01-04-2043 | The San Francisco Cylons have acquired Linden Sellers from the waiver wire. |
| 09-08-2042 | The Philadelphia Federalists have waived Linden Sellers. |
| 08-25-2042 | The Philadelphia Federalists have moved Charley Collins, Kenneth King, Benny Woodcock, Matt Miller, John Alexander, Larry Jackson, and Russell Ferguson to the active roster. The Philadelphia Federalists have moved Hoochie Kuechenberg, James Wells, Fred Cook, Alamalam Malamala, Linden Sellers, and Karl Dean to the inactive roster. |
| 08-04-2042 | The Philadelphia Federalists have moved Russ Osborne, Kevin Deal, Hoochie Kuechenberg, Linden Sellers, and James Wells to the active roster. The Philadelphia Federalists have moved Matt Miller, Rodney Wittum, Mike Neck, Ernie Robb, and Larry Jackson to the inactive roster. |
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