Mark Harrington files SEC Form 4 disclosures for Guidance Software, Inc.. They have made 2 open-market trades across 1 company since 2007, most recently 2016-07-01.
CIK 0001383366
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 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GUID | SELL | 2015-02-06 | 2015-02-09 | $6.33 | $23K | -9.1% | -2.4% | -2.4% |
| GUID | SELL | 2015-01-26 | 2015-01-27 | $6.65 | $36K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2012-12-17 | 2012-12-19 | $11.12 | $556K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2012-05-15 | 2012-05-17 | $8.39 | $64K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2012-04-16 | 2012-04-18 | $10.40 | $104K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2012-02-28 | 2012-03-01 | $11.48 | $108K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2011-07-21 | 2011-07-25 | $8.54 | $48K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2011-07-07 | 2011-07-12 | $8.55 | $42K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2007-12-28 | 2008-01-02 | $13.68 | $17K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2007-12-26 | 2007-12-28 | $13.52 | $70K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2007-11-01 | 2007-11-02 | $14.06 | $70K | -9.1% | -2.4% | -2.4% |
| GUID | SELL · 10b5-1 | 2007-08-13 | 2007-08-14 | $13.00 | $65K | -9.1% | -2.4% | -2.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.