Robert J. Phillippy, Director at MATERION Corp (MTRN), sold 3,500 shares at $217.67 ($765K) on 2026-05-29, disclosed to the SEC on 2026-06-01.
Seasonal sale ($765k) by Director — this insider has traded MTRN in May in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $217.67 | 1,320 | $287K | 37.6% |
| 2 | $218.59 | 1,084 | $237K | 31.0% |
| 3 | $219.54 | 740 | $162K | 21.2% |
| 4 | $220.30 | 356 | $78K | 10.2% |
| Total | $218.62 avg | 3,500 | $765K | 100% |
| Filing → |
| NEWP | BUY | 2015-09-16 | $144K | — | Filing → |
| NEWP | SELL | 2015-02-12 | $1.3M | — | Filing → |
| NEWP | SELL | 2014-01-17 | $1.7M | — | Filing → |