Yon Jorden is Director at MAXWELL TECHNOLOGIES INC (MXWL). They have made 15 open-market trades across 5 companies since 2006, most recently 2026-05-15.
CIK 0001189397
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.
15 open-market purchases totalling $396K since 2006, never a sale. Across 6 scored buys the stock is up 6.0% at ninety days, and 5.1 points ahead of the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 17% | 100% | 100% |
| Avg Move | -16.7% | +5.5% | +6.0% |
| Alpha | -11.9% | +5.3% | +5.1% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| COHU | BUY | 2021-08-12 | 2021-08-12 | $30.89 | $93K | +0.9% | +11.8% | +14.7% |
| CPST | BUY | 2019-12-11 | 2019-12-12 | $3.27 | $10K | N/A | N/A | N/A |
| CPST | BUY | 2019-08-20 | 2019-08-20 | $0.70 | $4K | N/A | N/A | N/A |
| CPST | BUY | 2019-06-14 | 2019-06-14 | $0.83 | $4K | N/A | N/A | N/A |
| CPST | BUY | 2019-02-15 | 2019-02-15 | $0.79 | $8K | N/A | N/A | N/A |
| CPST | BUY | 2018-08-13 | 2018-08-13 | $1.31 | $7K | N/A | N/A | N/A |
| CPST | BUY | 2018-06-12 | 2018-06-12 | $1.54 | $8K | N/A | N/A | N/A |
| CPST | BUY | 2018-02-08 | 2018-02-08 | $0.90 | $9K | N/A | N/A | N/A |
| CPST | BUY | 2017-08-14 | 2017-08-14 | $0.68 | $20K | N/A | N/A | N/A |
| MXWL | BUY | 2015-08-07 | 2015-08-11 | $4.83 | $24K | -16.9% | +1.3% | +1.3% |
| BIOS | BUY | 2015-03-12 | 2015-03-13 | $3.47 | $17K | -25.1% | +8.8% | +8.8% |
| BIOS | BUY | 2014-05-14 | 2014-05-15 | $7.21 | $36K | -25.1% | +8.8% | +8.8% |
| MXWL | BUY | 2008-09-12 | 2008-09-16 | $11.20 | $56K | -16.9% | +1.3% | +1.3% |
| MXWL | BUY | 2008-08-19 | 2008-08-20 | $12.58 | $63K | -16.9% | +1.3% | +1.3% |
| MAG | BUY | 2006-10-04 | 2006-10-05 | $3.78 | $38K | 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.
| Total |
| $3.0M |
Shares reported on the most recent Form 4, priced at the 2026-05-19 close. 2 holdings could not be priced and are excluded from the total.