| SC 13G/A | 2007-02-02 | DIMENSIONAL FUND ADVISORS INC | SPARTON CORP | 570,487 | 5.8% | EDGAR |
| SC 13G | 2007-01-31 | ROYCE & ASSOCIATES LLC | SPARTON CORP | 492,189 | 5.0% | EDGAR |
| SC 13G/A | 2006-02-06 | DIMENSIONAL FUND ADVISORS INC | SPARTON CORP | 526,379 | 5.6% | EDGAR |
| SC 13G/A | 2005-02-09 | DIMENSIONAL FUND ADVISORS INC | SPARTON CORP | 498,619 | 5.7% | EDGAR |
| SC 13D/A | 2004-10-21 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 646,677 | 7.7% | EDGAR |
| SC 13D/A | 2004-10-13 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 646,677 | 7.7% | EDGAR |
| SC 13D/A | 2004-10-04 | WEINTRAUB CAPITAL MANAGEMENT | SPARTON CORP | 646,677 | 7.7% | EDGAR |
| SC 13D/A | 2004-10-04 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 646,677 | 7.7% | EDGAR |
| SC 13D/A | 2004-09-20 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 636,677 | 7.6% | EDGAR |
| SC 13D/A | 2004-09-13 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 636,677 | 7.6% | EDGAR |
| SC 13D/A | 2004-09-08 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 636,677 | 7.6% | EDGAR |
| SC 13D/A | 2004-08-10 | LAWNDALE CAPITAL MANAGEMENT LLC | SPARTON CORP | 633,477 | 7.6% | EDGAR |
| SC 13G/A | 2004-08-04 | SARE JUDITH A | SPARTON CORP | 490,416 | 5.9% | EDGAR |
| SC 13G/A | 2004-02-06 | DIMENSIONAL FUND ADVISORS INC | SPARTON CORP | 485,063 | 5.8% | EDGAR |
| SC 13G | 2004-01-22 | SMITH DONALD & CO INC /NJ/ | SPARTON CORP | 222,531 | - | EDGAR |
| SC 13D/A | 2003-10-28 | LAWNDALE CAPITAL MANAGEMENT INC | SPARTON CORP | 578,740 | 7.3% | EDGAR |
| SC 13D/A | 2003-03-06 | LAWNDALE CAPITAL MANAGEMENT INC | SPARTON CORP | 549,440 | 6.9% | EDGAR |
| SC 13G | 2003-03-06 | SARE JUDITH A | SPARTON CORP | 453,813 | 6.0% | EDGAR |
| SC 13D | 2003-02-18 | LAWNDALE CAPITAL MANAGEMENT INC | SPARTON CORP | 408,635 | 5.1% | EDGAR |
| SC 13G/A | 2003-02-11 | DIMENSIONAL FUND ADVISORS INC | SPARTON CORP | 527,700 | 7.0% | EDGAR |