Chemnitz Gregory R. Insider Trading Activity
Chemnitz Gregory R. has been net-selling over the last 12 months with 0 purchases and 6 sales across 1 company.
MTRN is the most-traded position with 6 trades. The largest single transaction was a sale of MTRN for $628K on Feb 17, 2026.
Performance Scorecard
Forward stock performance after each transaction by Chemnitz Gregory R.. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +1.4% | 50% | 6 |
| 90 days | — | -26.8% | 0% | 6 |
| 120 days | — | -50.4% | 0% | 6 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersMTRN · MATERION Corp
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Mar 3, 2026 | MTRN | Sell | 1,083 | $157.51 | $171K | −10.4% | VP | |
Mar 3, 2026 | MTRN | Sell | 3,434 | $157.26 | $540K | −36.7% | VP | |
Feb 17, 2026 | MTRN | Sell | 4,000 | $157.09 | $628K | −31.8% | VP | |
Nov 4, 2025 | MTRN | Sell | 864 | $113.23 | $98K | −7.7% | VP | |
Aug 4, 2025 | MTRN | Sell | 918 | $104.65 | $96K | −6.9% | VP | |
Aug 4, 2025 | MTRN | Sell | 2,082 | $105.40 | $219K | −16.7% | VP |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| MTRN | MATERION Corp | 6 | $1.8M |
Other insiders at MATERION Corp
3 other tracked filers at MTRN.