| Date | Transaction |
| 02-28-1976 | Jason Simmons has retired from football. |
| 10-05-1975 | The Providence Heretics have waived Jason Simmons. |
| 11-01-1970 | Jason Simmons of the Providence Heretics is injured with a leg contusion and is expected to be out for approximately 5 days. |
| 10-19-1969 | The Providence Heretics have moved Jason Simmons to the active roster. The Providence Heretics have moved Ray Powers to the inactive roster. |
| 10-19-1969 | The Providence Heretics have acquired Jason Simmons from the waiver wire. |
| 09-01-1969 | The Denver Dawgs have waived Jason Simmons. |
| 08-18-1969 | The Denver Dawgs have moved Bud Mangum to the active roster. The Denver Dawgs have moved Jason Simmons to the inactive roster. |
| 12-15-1968 | Jason Simmons of the Denver Dawgs is injured with a mild concussion and is expected to be out for approximately 2 days. |
| 09-01-1968 | The Denver Dawgs have moved Jason Simmons to the active roster. The Denver Dawgs have moved Jim Brown to the inactive roster. |
| 08-19-1968 | The Denver Dawgs have moved Bud Mangum and Earl Dupree to the active roster. The Denver Dawgs have moved Tom Wolfley and Jason Simmons to the inactive roster. |
| 08-07-1967 | The Denver Dawgs have moved Jason Simmons to the active roster. The Denver Dawgs have moved Al Day to the inactive roster. |
| 08-07-1967 | The Denver Dawgs have acquired Jason Simmons from the waiver wire. |
| 08-22-1965 | The Washington Xenomorphs have waived Jason Simmons. |
| 08-22-1965 | The Washington Xenomorphs have moved Rick Larden, Mike Hull, Albert Ray, Mark Hickman, Doug Parker, Morris Joseph, Brandon Lund, Al Compton, Jim Lofton, Jeff Zilly, Laron Stewart, Wilbur Kilroy, Joey McDonald, Kenny Layden, Kurt Johnson, Brian Eissler, and Tom Walter to the active roster. The Washington Xenomorphs have moved Andre Reynolds, Eddie Baker, Willie Spirida, John Farley, E.L. Ulinski, Leather Al-Jabbar, Eddie Brown, Joe Currivan, Floyd Ryan, Rocky Bryant, Sean Broyles, Don Leary, Jason Simmons, James Bond, and Oscar Key to the inactive roster. |
| 08-15-1965 | The Washington Xenomorphs have moved Andre Reynolds, Roy Smith, Tom Sinnott, Willie Spirida, Albert Ray, Cliff Welch, Elmer Isom, John Farley, Ravin Broadhurst, E.L. Ulinski, John Jefferson, Floyd Ryan, Sean Broyles, Don Leary, Dar Smith, Jason Simmons, James Bond, and Oscar Key to the active roster. The Washington Xenomorphs have moved Rick Larden, Joe Robustelli, Mike Hull, Mark Hickman, Doug Parker, Morris Joseph, Leather Al-Jabbar, Brandon Lund, Al Compton, Max Ariail, Jim Lofton, Jeff Zilly, Laron Stewart, Joey McDonald, Larry Herline, Kurt Johnson, Brian Eissler, and Tom Walter to the inactive roster. |
| 05-02-1965 | The Washington Xenomorphs have acquired Jason Simmons from the waiver wire. |
| 09-13-1964 | The Boston Jesters have automatically waived Jason Simmons to comply with the 53-man roster limit. |
Defensive Tackle