| 2016-06-10 | Sale | Bio-Rad Laboratories, Inc. BIO | director, 10 percent owner | 7,000 0.0239% | $147.02 | $1.03M | +22.03% | |
| 2015-03-11 | Sale | Bio-Rad Laboratories, Inc. BIO | director, 10 percent owner | 60,000 0.2059% | $134.03 | $8.04M | +3.25% | |
| 2004-01-06 | Bio-Rad Laboratories, Inc. BIO | director, 10 percent owner | 9,750 0.0063% | $9.60 | $93,572 | -3.6% |