| Date | Transaction |
| 02-28-2018 | John Gabriel has retired from football. |
| 08-07-2017 | The Buffalo Bootleggers have waived John Gabriel. |
| 09-10-2012 | The Buffalo Bootleggers have moved Chip Scarpino and John Gabriel to the active roster. The Buffalo Bootleggers have moved Chris Speilman and Aaron Schobel to the inactive roster. |
| 09-03-2012 | The Buffalo Bootleggers have moved John Gabriel to the inactive roster. |
| 09-05-2011 | The Buffalo Bootleggers have moved Hurdis Stewart and John Gabriel to the active roster. |
| 08-14-2011 | The Buffalo Bootleggers have placed John Gabriel on the trade block. |
| 09-07-2009 | The Buffalo Bootleggers have acquired John Gabriel from the waiver wire. |
| 08-30-2009 | The Shreveport Rogues have waived John Gabriel. |
| 08-16-2009 | The Shreveport Rogues have moved Tony Supernaw, John Gabriel, Jon Gaustad, Shannon Mayes, and Fred Hill to the active roster. The Shreveport Rogues have moved Jack Roepke, Scott Bigelow, Ollie Hagler, Mike Elliott, Albert McNellis, and Roddy Piper to the inactive roster. |
| 08-31-2008 | The Shreveport Rogues have moved Ted Williams, Ollie Hagler, Eddie DeLeone, Shelton Benjamin, Mike Elliott, Doug Rucker, Albert McNellis, Ron Shivers, Jack Roepke, Roddy Piper, Scott Bigelow, Pete "Huck" Finn, and Leathers Wilson to the active roster. The Shreveport Rogues have moved Carl Barnhardt, Jon Gaustad, Matt Demps, Fred Hill, Ken Yoho, John Gabriel, Tony Supernaw, and Shannon Mayes to the inactive roster. |
| 01-20-2008 | The Shreveport Rogues have moved Carl Barnhardt, John Gabriel, Shannon Mayes, George Cloutier, and Fred Hill to the active roster. The Shreveport Rogues have moved Doug Rucker, Leathers Wilson, Ollie Hagler, Eddie DeLeone, Shelton Benjamin, Ron Shivers, and Albert McNellis to the inactive roster. |
| 09-02-2007 | The Shreveport Rogues have moved Jack Roepke, Leathers Wilson, Scott Bigelow, Tyrus McShane, Mike Shaw, Ted Williams, Ollie Hagler, Mike Elliott, Ron Shivers, Dinger Profit, Todd Stuckey, Harry Pelfrey, Albert McNellis, and Roddy Piper to the active roster. The Shreveport Rogues have moved John Duncan, Arnie Harrison, Carl Barnhardt, John Gabriel, Dennis Gardener, Ray Szakash, Lonie Smith, Ron Bellini, and Dale Siegle to the inactive roster. |
| 09-19-2005 | The British Columbia Border Collies have moved John Gabriel to the active roster. |
| 09-19-2005 | The British Columbia Border Collies have acquired John Gabriel from the waiver wire. |
| 09-18-2005 | The Las Vegas Sin Eaters have automatically waived John Gabriel to comply with the 53-man roster limit. |
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