| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13D/A | 2001-12-19 | THERMO ELECTRON CORP | SPECTRA PHYSICS INC | 13,333,000 | 78.5% | EDGAR |
| SC 13D/A | 2001-12-14 | THERMO ELECTRON CORP | SPECTRA PHYSICS INC | 13,333,000 | 78.5% | EDGAR |
| SC 13D/A | 2001-12-07 | THERMO ELECTRON CORP | SPECTRA PHYSICS INC | 13,333,000 | 78.5% | EDGAR |
| SC 13D/A | 2001-11-21 | THERMO ELECTRON CORP | SPECTRA PHYSICS INC | 13,333,000 | 78.5% | EDGAR |
| SC 13D/A | 2001-11-16 | THERMO ELECTRON CORP | SPECTRA PHYSICS INC | 13,333,000 | 78.5% | EDGAR |
| SC 13D/A | 2001-08-27 | THERMO ELECTRON CORP | THORATEC CORP | 14,600,413 | 26.5% | EDGAR |
| SC 13D/A | 2001-08-24 | THERMO ELECTRON CORP | SPECTRA PHYSICS INC | 13,333,000 | 79.8% | EDGAR |
| SC 13D/A | 2001-08-24 | THERMO ELECTRON CORP | THORATEC CORP | 15,932,828 | 29.2% | EDGAR |
| SC 13D/A | 2001-07-06 | THERMO ELECTRON CORP | THORATEC CORP | 15,932,828 | 29.2% | EDGAR |
| SC 13D/A | 2001-06-22 | THERMO ELECTRON CORP | SPECTRA PHYSICS LASERS INC | 13,333,000 | 79.8% | EDGAR |
| SC 13D | 2001-02-27 | THERMO ELECTRON CORP | THORATEC CARDIOSYSTEMS INC | 19,418,334 | 35.5% | EDGAR |
| SC 13D/A | 2001-02-22 | THERMO ELECTRON CORP | SPECTRA PHYSICS LASERS INC | 13,000,000 | 78.1% | EDGAR |
| SC 13G/A | 2001-02-14 | DODGE & COX | THERMO ELECTRON CORP | 10,991,800 | 6.3% | EDGAR |
| SC 13G/A | 2001-02-14 | FMR CORP | THERMO ELECTRON CORP | 26,723,617 | 14.8% | EDGAR |
| SC 13G/A | 2001-02-12 | CAPITAL RESEARCH & MANAGEMENT CO | THERMO ELECTRON CORP | - | - | EDGAR |
| SC 13G/A | 2001-01-16 | FRANKLIN MUTUAL ADVISERS LLC | THERMO ELECTRON CORP | 2,730,890 | 1.5% | EDGAR |
| SC 13D/A | 2000-10-19 | - | - | - | - | EDGAR |
| SC 13D/A | 2000-10-06 | - | - | - | - | EDGAR |
| SC 13D/A | 2000-05-12 | THERMO ELECTRON CORP | KFX INC | 1,195,100 | 4.8% | EDGAR |
| SC 13D/A | 2000-05-08 | THERMO ELECTRON CORP | THERMOTREX CORP | 18,465,265 | 80.3% | EDGAR |