Stephen F. Kirk is SVP & COO at LUBRIZOL CORP (LZ). They have made 12 open-market trades across 3 companies since 2006, most recently 2022-06-30.
CIK 0001015037
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.
2 open-market purchases totalling $234K since 2009, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VVV | BUY | 2017-02-06 | 2017-02-07 | $23.06 | $159K | +0.3% | -4.5% | -0.2% |
| LZ | SELL | 2010-09-03 | 2010-09-08 | $100.00 | $340K | -0.6% | +3.0% | +3.0% |
| LZ | SELL · 10b5-1 | 2010-03-24 | 2010-03-25 | $94.50 | $378K | -0.6% | +3.0% | +3.0% |
| LZ | SELL · 10b5-1 | 2010-03-17 | 2010-03-18 | $89.50 | $358K | -0.6% | +3.0% | +3.0% |
| LZ | SELL · 10b5-1 | 2010-03-03 | 2010-03-05 | $84.50 | $338K | -0.6% | +3.0% | +3.0% |
| LZ | SELL · 10b5-1 | 2010-03-01 | 2010-03-03 | $77.75 | $622K | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2010-02-19 | 2010-02-23 | $78.11 | $3.1M | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2010-02-18 | 2010-02-22 | $78.33 | $783K | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2009-11-12 | 2009-11-13 | $73.25 | $366K | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2009-08-27 | 2009-08-31 | $62.45 | $3.4M | -0.6% | +3.0% | +3.0% |
| RBN | BUY | 2009-03-30 | 2009-03-31 | $14.92 | $75K | N/A | N/A | N/A |
| LZ | SELL | 2007-11-29 | 2007-12-03 | $66.04 | $441K | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2007-11-29 | 2007-12-03 | $65.89 | $995K | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2007-11-29 | 2007-12-03 | $65.95 | $355K | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2007-02-21 | 2007-02-22 | $53.66 | $1.5M | -0.6% | +3.0% | +3.0% |
| LZ | SELL | 2006-08-07 | 2006-08-09 | $43.32 | $866K | -0.6% | +3.0% | +3.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.