Gregory C. Walker is CFO & VP at PDF SOLUTIONS INC (PDFS). They have made 12 open-market trades across 1 company since 2012, most recently 2018-07-01.
CIK 0001120914
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 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PDFS | 21,468 | $741K |
Shares reported on the most recent Form 4, priced at the 2018-07-02 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PDFS | SELL | 2016-11-08 | 2016-11-09 | $19.85 | $247K | +14.0% | +13.8% | +12.4% |
| PDFS | SELL | 2016-09-12 | 2016-09-13 | $15.90 | $42K | +9.7% | +13.7% | +44.3% |
| PDFS | SELL | 2016-08-09 | 2016-08-10 | $17.00 | $81K | +0.6% | -6.0% | +17.9% |
| PDFS | SELL | 2015-02-23 | 2015-02-25 | $17.52 | $2.1M | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2015-02-19 | 2015-02-20 | $33.60 | $465K | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2014-02-11 | 2014-02-12 | $23.11 | $54K | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2013-11-08 | 2017-05-03 | $22.80 | $98K | +5.4% | -2.0% | -4.8% |
| PDFS | SELL | 2013-11-08 | 2013-11-12 | $22.80 | $98K | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2013-08-01 | 2013-08-02 | $20.83 | $25K | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2013-06-07 | 2013-06-10 | $18.28 | $20K | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2013-04-30 | 2013-05-02 | $17.05 | $46K | -15.4% | -2.1% | -2.1% |
| PDFS | SELL | 2012-12-03 | 2012-12-04 | $14.57 | $91K | -15.4% | -2.1% | -2.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.