Robert J. Phillippy is Director at MATERION Corp (MTRN). They have made 6 open-market trades across 4 companies since 2006, most recently 2026-09-04.
CIK 0001213190
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.
2 open-market purchases totalling $365K since 2012, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MTRN | 12,041 | $2.9M |
| ESE | 7,868 | $2.0M |
| NEWP | 284,175 | $1.9M |
| MKSI | 7,354 | $1.6M |
| KE | 15,912 | $412K |
| Total | $8.8M |
Shares reported on the most recent Form 4, priced at the 2026-09-09 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 |
|---|---|---|---|---|---|---|---|---|
| MTRN | SELL | 2026-05-29 | 2026-06-01 | $218.62 | $765K | +9.5% | +26.0% | +5.0% |
| ESE | SELL | 2025-11-25 | 2025-11-26 | $222.38 | $1.6M | -7.8% | -6.6% | +33.0% |
| MKSI | SELL | 2018-02-15 | 2018-02-16 | $109.15 | $1.1M | +2.7% | +12.5% | +6.3% |
| NEWP | BUY | 2015-09-15 | 2015-09-16 | $14.42 | $144K | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2015-02-11 | 2015-02-12 | $20.27 | $1.3M | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2014-01-15 | 2014-01-17 | $18.50 | $1.7M | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2013-11-11 | 2013-11-12 | $17.40 | $291K | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2013-11-04 | 2013-11-06 | $17.40 | $140K | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2013-02-12 | 2013-02-14 | $15.00 | $264K | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2013-02-05 | 2013-02-07 | $15.00 | $786K | +0.5% | -3.8% | -3.8% |
| NEWP | BUY | 2012-06-04 | 2012-06-06 | $11.04 | $221K | +0.5% | -3.8% | -3.8% |
| NEWP | SELL · 10b5-1 | 2010-12-03 | 2010-12-07 | $16.00 | $480K | +0.5% | -3.8% | -3.8% |
| NEWP | SELL | 2006-05-01 | 2006-05-03 | $19.02 | $1.4M | +0.5% | -3.8% | -3.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.