| SC 13G/A | 2000-07-07 | - | - | - | - | EDGAR |
| SC 13G/A | 2000-02-11 | STEIN ROE & FARNHAM INC /DE/ | LITTELFUSE INC /DE | 540,000 | 2.8% | EDGAR |
| SC 13G/A | 2000-02-11 | WELLINGTON MANAGEMENT CO LLP | LITTELFUSE INC /DE | 1,531,100 | 7.8% | EDGAR |
| SC 13G | 2000-02-11 | CAPITAL RESEARCH & MANAGEMENT CO | LITTELFUSE INC /DE | - | - | EDGAR |
| SC 13G/A | 2000-02-11 | STEIN ROE & FARNHAM INC /DE/ | LITTELFUSE INC /DE | 540,000 | 2.8% | EDGAR |
| SC 13G/A | 2000-02-11 | WELLINGTON MANAGEMENT CO LLP | LITTELFUSE INC /DE | 1,531,100 | 7.8% | EDGAR |
| SC 13G | 2000-02-11 | CAPITAL RESEARCH & MANAGEMENT CO | LITTELFUSE INC /DE | - | - | EDGAR |
| SC 13G/A | 2000-02-11 | STEIN ROE & FARNHAM INC /DE/ | LITTELFUSE INC /DE | 540,000 | 2.8% | EDGAR |
| SC 13G/A | 2000-02-11 | WELLINGTON MANAGEMENT CO LLP | LITTELFUSE INC /DE | 1,531,100 | 7.8% | EDGAR |
| SC 13G | 2000-02-11 | CAPITAL RESEARCH & MANAGEMENT CO | LITTELFUSE INC /DE | - | - | EDGAR |
| SC 13G | 2000-02-10 | AMERICAN CENTURY INVESTMENT MANAGEMENT INC | LITTELFUSE INC /DE | 1,356,600 | 6.9% | EDGAR |
| SC 13G | 2000-02-10 | AMERICAN CENTURY INVESTMENT MANAGEMENT INC | LITTELFUSE INC /DE | 1,356,600 | 6.9% | EDGAR |
| SC 13G | 2000-02-10 | AMERICAN CENTURY INVESTMENT MANAGEMENT INC | LITTELFUSE INC /DE | 1,356,600 | 6.9% | EDGAR |
| SC 13G/A | 2000-02-08 | ARIEL CAPITAL MANAGEMENT INC ET AL | LITTELFUSE INC /DE | 9 | 11.0% | EDGAR |
| SC 13G/A | 2000-02-08 | ARIEL CAPITAL MANAGEMENT INC ET AL | LITTELFUSE INC /DE | 9 | 11.0% | EDGAR |
| SC 13G/A | 2000-02-08 | ARIEL CAPITAL MANAGEMENT INC ET AL | LITTELFUSE INC /DE | 9 | 11.0% | EDGAR |
| SC 13G | 2000-02-07 | PRICE T ROWE ASSOCIATES INC /MD/ | LITTELFUSE INC /DE | 1,583,400 | 8.0% | EDGAR |
| SC 13G | 2000-02-07 | PRICE T ROWE ASSOCIATES INC /MD/ | LITTELFUSE INC /DE | 1,583,400 | 8.0% | EDGAR |
| SC 13G | 2000-02-07 | PRICE T ROWE ASSOCIATES INC /MD/ | LITTELFUSE INC /DE | 1,583,400 | 8.0% | EDGAR |