Larry M. Hummel files SEC Form 4 disclosures for SIGMA ALDRICH CORP. They have made 6 open-market trades across 1 company since 2003, most recently 2011-05-02.
CIK 0001200840
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SIAL | SELL | 2011-05-02 | 2011-05-04 | $70.59 | $1.1M | N/A | N/A | N/A |
| SIAL | SELL | 2010-10-27 | 2010-10-29 | $61.13 | $917K | N/A | N/A | N/A |
| SIAL | SELL | 2009-11-11 | 2009-11-12 | $55.12 | $1.6M | N/A | N/A | N/A |
| SIAL | SELL | 2008-07-30 | 2008-07-31 | $60.94 | $336K | N/A | N/A | N/A |
| SIAL | SELL | 2007-10-31 | 2007-11-01 | $50.90 | $281K | N/A | N/A | N/A |
| SIAL | SELL | 2003-07-28 | 2008-01-17 | $55.85 | $56K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.