Robert Matthew Johnson is CEO & President at SILICON LABORATORIES INC. (SLAB). They have made 6 open-market trades across 1 company since 2020, most recently 2026-05-18.
CIK 0001792014
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SLAB | 80,519 | $17.9M |
| NOVT | 2,143 | $311K |
| Total | $18.2M |
Shares reported on the most recent Form 4, priced at the 2026-05-19 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SLAB | SELL | 2026-05-18 | 2026-05-19 | $216.83 | $1.7M | +0.4% | +1.3% | +1.1% |
| SLAB | SELL · 10b5-1 | 2025-05-16 | 2025-05-19 | $131.20 | $1.5M | -4.7% | +11.5% | +4.6% |
| SLAB | SELL · 10b5-1 | 2024-06-03 | 2024-06-04 | $123.80 | $895K | -5.2% | -9.5% | -14.2% |
| SLAB | SELL · 10b5-1 | 2023-12-04 | 2023-12-05 | $108.22 | $796K | +18.4% | +7.6% | +26.9% |
| SLAB | SELL · 10b5-1 | 2023-10-02 | 2023-10-03 | $115.23 | $814K | -3.5% | -22.1% | +12.9% |
| SLAB | SELL · 10b5-1 | 2023-08-02 | 2023-08-03 | $144.06 | $1.0M | -2.5% | -6.6% | -38.0% |
| SLAB | SELL | 2022-06-06 | 2022-06-07 | $149.38 | $1.6M | -9.8% | -15.3% | -22.0% |
| SLAB | SELL | 2021-08-16 | 2021-08-17 | $157.74 | $1.5M | +3.1% | -5.6% | +33.3% |
| SLAB | SELL | 2021-02-16 | 2021-02-17 | $153.19 | $1.2M | +8.7% | -3.7% | -16.7% |
| SLAB | SELL | 2020-08-17 | 2020-08-18 | $100.12 | $1.1M | +1.6% | -3.2% | +11.7% |
| SLAB | SELL | 2020-02-24 | 2020-02-25 | $95.99 | $370K | -8.6% | -8.3% | +0.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.