| 2009-09-22 | Sale | Bruker Corporation BRKR | 10 percent owner | 3M 1.705% | $9.36 | $28.07M | +26.71% | |
| 2008-02-26 | Sale | Bruker Corporation BRKR | 10 percent owner | 8.82M 4.4462% | $9.14 | $80.61M | +7.7% | |
| 2004-04-28 | Sale | Bruker Corporation BRKR | 10 percent owner | 7.67M 7.4918% | $4.50 | $34.5M | -27.98% | |
| 2003-07-01 | Bruker Corporation BRKR | 10 percent owner | 3.66M – | $0 | $0 | -9.73% |