Douglas A. Berthiaume is Director at WATERS CORP /DE/ (WAT). They have made 14 open-market trades across 2 companies since 2006, most recently 2017-11-03.
CIK 0001082257
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WAT | SELL | 2014-12-04 | 2014-12-05 | $117.00 | $12.0M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2011-11-15 | 2011-11-17 | $79.53 | $11.9M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2010-12-06 | 2010-12-08 | $78.50 | $7.8M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2009-11-17 | 2009-11-18 | $60.51 | $2.4M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2009-11-13 | 2009-11-17 | $60.00 | $3.0M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2009-11-10 | 2009-11-12 | $60.57 | $3.0M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2009-05-05 | 2009-05-06 | $45.21 | $475K | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2008-12-04 | 2008-12-08 | $41.77 | $5.9M | -6.5% | -1.7% | -1.7% |
| GENZ | SELL | 2008-11-04 | 2008-11-05 | $74.59 | $835K | N/A | N/A | N/A |
| WAT | SELL | 2008-07-28 | 2008-07-30 | $67.23 | $1.7M | -6.5% | -1.7% | -1.7% |
| GENZ | SELL | 2008-05-21 | 2008-05-23 | $67.71 | $1.6M | N/A | N/A | N/A |
| WAT | SELL | 2007-09-11 | 2007-09-13 | $63.61 | $11.5M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2007-05-22 | 2007-05-23 | $60.71 | $1.2M | -6.5% | -1.7% | -1.7% |
| WAT | SELL | 2006-05-23 | 2006-05-25 | $42.23 | $3.5M | -6.5% | -1.7% | -1.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.