James D. Plummer is Director at CADENCE DESIGN SYSTEMS INC (CDNS). They have made 18 open-market trades across 4 companies since 2006, most recently 2026-06-11.
CIK 0001242607
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.
1 open-market purchase totalling $43K since 2006, against 17 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CDNS | SELL · 10b5-1 | 2026-06-11 | 2026-06-15 | $381.34 | $576K | -3.9% | -5.2% | -28.7% |
| CDNS | SELL | 2025-05-16 | 2025-05-20 | $319.95 | $555K | -7.8% | -6.9% | +12.3% |
| CDNS | SELL | 2024-03-07 | 2024-03-21 | $315.40 | $1.5M | -3.8% | -11.7% | -1.3% |
| CDNS | SELL | 2023-07-27 | 2023-07-31 | $238.54 | $2.1M | -2.5% | +3.7% | +1.0% |
| CDNS | SELL | 2022-04-28 | 2022-05-02 | $155.74 | $7.2M | -9.6% | +1.9% | +23.1% |
| CDNS | SELL | 2021-03-12 | 2021-03-15 | $125.40 | $3.1M | -3.6% | +11.0% | +0.5% |
| CDNS | SELL | 2019-02-28 | 2019-03-04 | $57.47 | $718K | +4.4% | +11.2% | +5.3% |
| CDNS | SELL | 2018-07-26 | 2018-07-30 | $46.49 | $349K | +2.6% | +6.9% | +0.0% |
| INTC | SELL | 2017-01-30 | 2017-02-01 | $37.45 | $807K | -1.3% | -1.0% | +2.0% |
| INTC | SELL | 2015-01-20 | 2015-01-21 | $35.85 | $349K | -5.8% | +0.3% | +0.3% |
| IRF | SELL | 2014-05-14 | 2014-05-14 | $26.13 | $157K | N/A | N/A | N/A |
| IRF | SELL | 2013-09-04 | 2013-09-05 | $24.86 | $149K | N/A | N/A | N/A |
| INTC | SELL | 2013-07-29 | 2013-07-30 | $23.23 | $158K | -5.8% | +0.3% | +0.3% |
| INTC | SELL | 2013-01-24 | 2013-01-28 | $21.04 | $210K | -5.8% | +0.3% | +0.3% |
| INTC | SELL | 2012-05-01 | 2012-05-02 | $28.98 | $435K | -5.8% | +0.3% | +0.3% |
| INTC | SELL | 2011-11-01 | 2011-11-01 | $24.00 | $180K | -5.8% | +0.3% | +0.3% |
| LDIS | SELL | 2009-10-12 | 2009-10-14 | $1.00 | $128K | N/A | N/A | N/A |
| IRF | SELL | 2006-08-09 | 2006-08-10 | $34.30 | $137K | N/A | N/A | N/A |
| INTC | BUY | 2006-01-23 | 2006-01-24 | $21.33 | $43K | -5.8% | +0.3% | +0.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.