| Date | Transaction |
| 02-28-2007 | Yatil Cobb has retired from football. |
| 05-02-1999 | The Las Vegas COIN have waived Yatil Cobb. |
| 09-07-1998 | The Las Vegas COIN have acquired Yatil Cobb from the waiver wire. |
| 09-08-1997 | The Los Angeles RAMS have waived Yatil Cobb. |
| 09-08-1997 | The Los Angeles RAMS have moved Darrell Hughes, Vinny "the Hammer" Zuzzio, Cecil Coleman, Lamar Crudup, Chris Gordon, and Johnny Rowe to the active roster. The Los Angeles RAMS have moved Kaipo Maester, Eddie Jenkins, Koren Wisniewski, Dalva Hall, Danny Tollefson, and Yatil Cobb to the inactive roster. |
| 04-27-1997 | The Los Angeles RAMS have acquired Yatil Cobb from the waiver wire. |
| 09-15-1996 | The Washington Xenomorphs have automatically waived Yatil Cobb to comply with the 53-man roster limit. |
| 09-08-1996 | The Washington Xenomorphs have acquired Yatil Cobb from the waiver wire. |
| 09-08-1996 | The Washington Xenomorphs have automatically waived Yatil Cobb to comply with the 53-man roster limit. |
| 09-02-1996 | The Washington Xenomorphs have moved Jack Chelf, Larry Johnson, Dedrick Berti, Chris Clatterbuck, Brandon Roberts, Doug Crafts, Travis Boso, Joe Davis, and Earl Williams to the active roster. The Washington Xenomorphs have moved Frank Humphries, Ted Jones, Sammy Feagles, Stan Carey, Walt Murphy, Clem Cobb, Randy Slater, De'Mond Beals, and Yatil Cobb to the inactive roster. |
| 08-19-1996 | The Washington Xenomorphs have moved Jack Chelf, Larry Johnson, Dedrick Berti, Bill Howard, Jeff Potter, Nate Matthews, David Reese, Jim O'Brien, Harry Little, Brandon Roberts, Kelen Williamson, Drew Brooks, Herbie Hall, Yatil Cobb, Danny Thomas, Gerald Croudip, Bob Cearing, Curtis Bundra, Radell Smith, Earl Williams, and Donnie Harrison to the active roster. The Washington Xenomorphs have moved Ted Jones, Lloyd Powe, Sammy Feagles, Israel Uremovich, Stan Carey, Tom Halloran, Pat Speelman, Dowe Claybrooks, Mike Cox, Bill Thompson, Sam Lundy, Steve Wyant, Dennis Brumfield, Alvin Tuckey, Porter Tyler, David Kosins, Hew Patrick, Paul Fulcher, Mike Shannon, and Ben Flanagan to the inactive roster. |
| 08-11-1996 | The Washington Xenomorphs have moved Paul Waite, Tony Norris, Frank Humphries, Ted Jones, Lloyd Powe, Garland Liebenstein, Sammy Feagles, Israel Uremovich, Stan Carey, Dowe Claybrooks, Mike Cox, Bill Thompson, Sam Lundy, Steve Wyant, Dennis Brumfield, Alvin Tuckey, Porter Tyler, David Kosins, Hew Patrick, Randy Slater, De'Mond Beals, Paul Fulcher, Mike Shannon, and Ben Flanagan to the active roster. The Washington Xenomorphs have moved Myron Ramsey, Jack Chelf, Larry Johnson, Dedrick Berti, Jeff Potter, Nate Matthews, James Jurgensen, David Reese, Chris Clatterbuck, Jim O'Brien, Harry Little, Brandon Roberts, Kelen Williamson, Travis Boso, Joe Davis, Drew Brooks, Herbie Hall, Yatil Cobb, Danny Thomas, Gerald Croudip, Bob Cearing, Curtis Bundra, Radell Smith, and Earl Williams to the inactive roster. |
| 12-18-1995 | The Washington Xenomorphs have moved Kevin Marker, Yatil Cobb, and Mike Barrett to the active roster. The Washington Xenomorphs have moved Paul Waite, Dennis Brumfield, and David Kosins to the inactive roster. |
| 12-11-1995 | The Washington Xenomorphs have moved Paul Waite, Dennis Brumfield, David Kosins, and Randy Slater to the active roster. The Washington Xenomorphs have moved Doug Crafts, Kevin Marker, Yatil Cobb, and Mike Barrett to the inactive roster. |
| 12-04-1995 | The Washington Xenomorphs have moved Doug Crafts, Jamal DeLong, Yatil Cobb, Mike Shannon, and Larry Lowe to the active roster. The Washington Xenomorphs have moved Paul Waite, Dennis Brumfield, David Kosins, Randy Slater, and Paul Fulcher to the inactive roster. |
| 11-20-1995 | The Washington Xenomorphs have moved Lem Bellisari, Ed Churchman, Herbie Hall, Dennis Brumfield, Frank Jefferson, and Mike Barrett to the active roster. The Washington Xenomorphs have moved Kaseem Diehl, Garland Liebenstein, David Kosins, Randy Slater, Yatil Cobb, and Paul Fulcher to the inactive roster. |
| 11-06-1995 | The Washington Xenomorphs have moved Kaseem Diehl, Lem Bellisari, Randy Slater, Yatil Cobb, and Chuck Smith to the active roster. The Washington Xenomorphs have moved Doug Crafts, Dennis Brumfield, Frank Jefferson, Mike Shannon, and Larry Lowe to the inactive roster. |
| 10-23-1995 | The Washington Xenomorphs have moved Kaseem Diehl, Dennis Brumfield, Mike Shannon, Ben Flanagan, and Earl Williams to the active roster. The Washington Xenomorphs have moved Garland Liebenstein, Mike Cox, Al Rowe, David Kosins, and Yatil Cobb to the inactive roster. |
| 10-09-1995 | The Washington Xenomorphs have moved Garland Liebenstein, Doug Crafts, David Kosins, Yatil Cobb, and Paul Fulcher to the active roster. The Washington Xenomorphs have moved Kaseem Diehl, Herbie Hall, Dennis Brumfield, Randy Slater, and Mike Shannon to the inactive roster. |
| 09-25-1995 | The Washington Xenomorphs have moved Mike Cox, Dennis Brumfield, Randy Slater, Jamal DeLong, and Mike Shannon to the active roster. The Washington Xenomorphs have moved Doug Crafts, Kevin Marker, David Kosins, Yatil Cobb, and Earl Williams to the inactive roster. |
| 09-18-1995 | The Washington Xenomorphs have moved Kaseem Diehl, Kevin Marker, David Kosins, and Yatil Cobb to the active roster. The Washington Xenomorphs have moved Mike Cox, Jamal DeLong, Paul Fulcher, and Mike Shannon to the inactive roster. |
| 09-03-1995 | The Washington Xenomorphs have moved Larry Johnson, Brandon Roberts, and Joe Davis to the active roster. The Washington Xenomorphs have moved Dennis Brumfield, Randy Slater, and Yatil Cobb to the inactive roster. |
| 08-27-1995 | The Washington Xenomorphs have acquired Yatil Cobb from the waiver wire. |
| 08-14-1995 | The Boston Hornets have waived Yatil Cobb. |
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