| Date | Transaction |
| 02-28-1995 | Rob Sims has retired from football. |
| 08-09-1993 | The New York Nephilim have waived Rob Sims. |
| 08-18-1986 | The New York Nephilim have moved Mike Lukens, Don Jewett, and Rob Sims to the active roster. The New York Nephilim have moved Tom Gardner to the inactive roster. |
| 08-18-1986 | Trade #44438 has been completed between the New York Nephilim and the St. Louis Lions. The St. Louis Lions receive Draft Pick - 1989 Round 2 (NYA), Draft Pick - 1989 Round 1 (NYA) from the New York Nephilim in exchange for Rob Sims (G). |
| 01-05-1986 | Rob Sims of the St. Louis Lions is injured with a mild concussion and is expected to be out for approximately 2 days. |
| 10-29-1984 | The St. Louis Lions have moved Riley Reiff, Rob Sims, and Ryan Broyles to the active roster. The St. Louis Lions have moved Tom Fernandes, Lloyd Paul, and Pratt Lewis to the inactive roster. |
| 10-01-1984 | The St. Louis Lions have moved Tom Fernandes and Pratt Lewis to the active roster. The St. Louis Lions have moved Glover Quin and Rob Sims to the inactive roster. |
| 09-30-1984 | Rob Sims of the St. Louis Lions is injured with a hamstring strain and is expected to be out for approximately 25 days. |
| 08-29-1983 | The St. Louis Lions have moved Rod Turnbow, Ernie Sims, Darius Slay, Jim Kennard, Mark Farr, Kevin Brown, Joe Feldhaus, and Rob Sims to the active roster. The St. Louis Lions have moved Trumaine Slater, Al Dancewicz, Larry Webster, Alex Lewis, Theo Riddick, Leonard Beverly, Pratt Lewis, and Adam Moran to the inactive roster. |
| 08-15-1983 | The St. Louis Lions have moved Al Dancewicz to the active roster. The St. Louis Lions have moved Rob Sims to the inactive roster. |
| 02-06-1983 | Rob Sims of the St. Louis Lions is injured with a groin pull and is expected to be out for approximately 10 days. |
| 09-06-1982 | The St. Louis Lions have moved Rod Turnbow, Darius Slay, Rashean Mathis, John Bross, Mark Farr, Kevin Brown, Joe Feldhaus, Carl Treu, and Rob Sims to the active roster. The St. Louis Lions have moved Coy Tyson, John Saul, Scotty Anderson, Trumaine Slater, Leonard Beverly, Pratt Lewis, Earl Fawcett, and Kyle Van Noy to the inactive roster. |
| 08-15-1982 | The St. Louis Lions have moved Jason Fox, Scotty Anderson, Matthew Whittington, Earl Fawcett, Adam Moran, and Jerry Stoutmire to the active roster. The St. Louis Lions have moved Rod Turnbow, Mark Farr, Joe Feldhaus, Carl Treu, and Rob Sims to the inactive roster. |
| 08-24-1981 | The St. Louis Lions have moved Rob Sims to the active roster. The St. Louis Lions have moved Larry Warford to the inactive roster. |
| 08-10-1981 | The St. Louis Lions have moved Jake Sands, Bill Daigle, Mike Sullivan, Bill Bentley, Mike Hines, Gary Psaltis, Eddie Edinger, Jerald Newman, Leonard Beverly, Matthew Whittington, Carl Treu, Earl Fawcett, and Adam Moran to the active roster. The St. Louis Lions have moved Rod Turnbow, Buzz Davis, David Martin, Trumaine Slater, Darius Slay, Al Dancewicz, Sam Kiefer, Mike Freitas, Mel Bowman, Kevin Brown, Joe Feldhaus, Rob Sims, and Jim Gaustad to the inactive roster. |
| 08-11-1980 | The St. Louis Lions have moved David Martin, Bill Bentley, Mike Freitas, Tahir Whitehead, Leonard Beverly, Pratt Lewis, Matthew Whittington, Tony Cichowski, Eric Rothwell, Earl Fawcett, and Rob Sims to the active roster. The St. Louis Lions have moved Nick Forbes, Trumaine Slater, Darius Slay, John Bross, Skippy Carter, Jim Kennard, Shine Seidelson, Jim Bahr, Mark Farr, Kevin Brown, and Joe Feldhaus to the inactive roster. |
| 08-10-1980 | The St. Louis Lions have changed Bert Robinson's name to Rob Sims. |
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