Gregory R. Chemnitz sold $711k of MTRN
VP General Counsel & Secretary at MATERION Corp. 4,517 shares at an average of $157.32, traded Mar 3, 2026, filed Mar 3, 2026.
Score components
- +15RoleOfficer
- +21Trade size$711k at market
- +10Share of holdings soldSold 43% of holdings
- +15Cluster5 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -7.5%, 3m +42.7%, 6m +45.4%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001519910-26-000008, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Mar 1, 2026 | MOption exercise Common Stock | +2,003 | $0.00 | $0 | 10,575 | Mar 3, 2026 |
| Mar 2, 2026 | FTax withholding Common Stock | -1,211 | $166.59 | $202k | 9,364 | Mar 3, 2026 |
| Mar 3, 2026 | MOption exercise Common Stock | +3,040 | $113.28 | $344k | 12,404 | Mar 3, 2026 |
| Mar 3, 2026 | MOption exercise Common Stock | +1,471 | $135.58 | $199k | 13,875 | Mar 3, 2026 |
| Mar 3, 2026 | MOption exercise Common Stock | +1,017 | $87.36 | $89k | 14,892 | Mar 3, 2026 |
| Mar 3, 2026 | FTax withholding Common Stock | -4,445 | $157.26 | $699k | 10,447 | Mar 3, 2026 |
| Mar 3, 2026 | SOpen-market sale Common Stock | -1,083 | $157.52 | $171k | 9,364 | Mar 3, 2026 |
| Mar 3, 2026 | SOpen-market sale Common Stock | -3,434 | $157.26 | $540k | 5,930 | Mar 3, 2026 |
| Mar 1, 2026 | MOption exercise Restricted Stock Unitsderivative | -2,003 | $0.00 | $0 | 2,060 | Mar 3, 2026 |
| Mar 1, 2026 | AGrant or award Restricted Stock Unitsderivative | +1,479 | $0.00 | $0 | 3,539 | Mar 3, 2026 |
| Mar 1, 2026 | AGrant or award Stock Appreciation Rightsderivative | +2,265 | $0.00 | $0 | 2,265 | Mar 3, 2026 |
| Mar 3, 2026 | MOption exercise Stock Appreciation Rightsderivative | -3,040 | $0.00 | $0 | 0 | Mar 3, 2026 |
| Mar 3, 2026 | MOption exercise Stock Appreciation Rightsderivative | -1,471 | $0.00 | $0 | 736 | Mar 3, 2026 |
| Mar 3, 2026 | MOption exercise Stock Appreciation Rightsderivative | -1,017 | $0.00 | $0 | 2,034 | Mar 3, 2026 |
Related signals
Other insiders at MATERION Corp and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 41Moderate | MATERION Corp | Emily M Liggett director | $235k 1,012 shares | -24% | |
| 45Moderate | MATERION Corp | Vinod M Khilnani director | $470k 2,000 shares | -15% | |
| 45Moderate | MATERION Corp | Shelly Marie Chadwick Vice President, Finance & CFO | $500k 1,705 shares | -10% | |
| 60Notable | MATERION Corp | Darlene J. S. Solomon director | $1.1M 3,705 shares | -12% | |
| 55Moderate | MATERION Corp | Jugal K. Vijayvargiya President and CEO | $7.1M 24,336 shares | -17% | |
| 47Moderate | MTRNsell MATERION Corp | Robert J Phillippy director | $765k 3,500 shares | -49% | |
| 46Moderate | MATERION Corp | Vinod M Khilnani director | $517k 2,500 shares | -16% | |
| 28Weak | MATERION Corp | Shelly Marie Chadwick Vice President, Finance & CFO | $237k 1,192 shares | -7% | |
| 23Weak | MATERION Corp | Shelly Marie Chadwick Vice President, Finance & CFO | $406k 2,539 shares | -14% | |
| 32Weak | MATERION Corp | Melissa A Fashinpaur Chief Accounting Officer | $49k 309 shares | -50% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.