Gregory R. Chemnitz insider trades: MATERION (MTRN) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Gregory reports to the SEC
Open-market buys and sales
26 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 17, 2026 | MTRN | ↓ Sell | 4,000 | $157.09 | $628K | Direct | Feb 19, 2026 (2d) |
| Nov 4, 2025 | MTRN | ↓ Sell | 864 | $113.23 | $98K | Direct | Nov 6, 2025 (2d) |
| Aug 4, 2025 | MTRN | ↓ Sell | 3,000 | $105.17 | $316K | Direct | Aug 6, 2025 (2d) |
| May 5, 2025 | MTRN | ↓ Sell | 2,000 | $80.45 | $161K | Direct | May 6, 2025 (1d) |
| Nov 7, 2024 | MTRN | ↓ Sell | 2,000 | $117.57 | $235K | Direct | Nov 12, 2024 (5d) |
| Nov 4, 2024 | MTRN | ↓ Sell | 2,000 | $105.10 | $210K | Direct | Nov 6, 2024 (2d) |
| Aug 8, 2024 | MTRN | ↓ Sell | 2,000 | $112.87 | $226K | Direct | Aug 12, 2024 (4d) |
| May 13, 2024 | MTRN | ↓ Sell | 2,000 | $113.31 | $227K | Direct | May 15, 2024 (2d) |
| Feb 20, 2024 | MTRN | ↓ Sell | 3,000 | $133.74 | $401K | Direct | Feb 22, 2024 (2d) |
| Aug 29, 2023 | MTRN | ↓ Sell | 1,800 | $107.73 | $194K | Direct | Aug 30, 2023 (1d) |
| May 17, 2023 | MTRN | ↓ Sell | 2,378 | $102.05 | $243K | Direct | May 19, 2023 (2d) |
| Feb 27, 2023 | MTRN | ↓ Sell | 3,000 | $110.00 | $330K | Direct | Feb 27, 2023 (0d) |
| Aug 19, 2022 | MTRN | ↓ Sell | 2,868 | $96.35 | $276K | Direct | Aug 23, 2022 (4d) |
| May 13, 2022 | MTRN | ↓ Sell | 4,700 | $80.00 | $376K | Direct | May 16, 2022 (3d) |
| Feb 22, 2021 | MTRN | ↓ Sell | 6,700 | $67.00 | $449K | Direct | Feb 24, 2021 (2d) |
| Aug 13, 2020 | MTRN | ↓ Sell | 1,287 | $59.97 | $77K | Direct | Aug 14, 2020 (1d) |
| Aug 10, 2020 | MTRN | ↓ Sell | 4,000 | $60.43 | $242K | Direct | Aug 11, 2020 (1d) |
| Feb 22, 2019 | MTRN | ↓ Sell | 2,174 | $58.18 | $126K | Direct | Feb 26, 2019 (4d) |
| Feb 21, 2019 | MTRN | ↓ Sell | 3,000 | $57.57 | $173K | Direct | Feb 25, 2019 (4d) |
| Nov 1, 2018 | MTRN | ↓ Sell | 4,000 | $57.50 | $230K | Direct | Nov 1, 2018 (0d) |
| Aug 3, 2018 | MTRN | ↓ Sell | 2,000 | $63.31 | $127K | Direct | Aug 6, 2018 (3d) |
| May 4, 2018 | MTRN | ↓ Sell | 5,000 | $52.02 | $260K | Direct | May 8, 2018 (4d) |
| Nov 2, 2017 | MTRN | ↓ Sell | 4,000 | $50.16 | $201K | Direct | Nov 3, 2017 (1d) |
| Nov 1, 2017 | MTRN | ↓ Sell | 3,000 | $51.29 | $154K | Direct | Nov 3, 2017 (2d) |
| Oct 30, 2017 | MTRN | ↓ Sell | 3,000 | $49.60 | $149K | Direct | Oct 31, 2017 (1d) |
| Jul 31, 2017 | MTRN | ↓ Sell | 3,000 | $38.29 | $115K | Direct | Jul 31, 2017 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MTRN insiders
Open-market trades in the last 12 months
About Gregory R. Chemnitz's insider trades
Gregory R. Chemnitz is VP General Counsel & Secretary at MATERION (MTRN). Since Jul 31, 2017, Gregory has reported no open-market purchases and 26 sales worth $6.2M on SEC Form 4. In the last 12 months: 1 sale ($628K).
Their filings also include grants and awards (77 filings), shares withheld for taxes (34 filings), option exercises (18 filings), shares returned to the company (8 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MTRN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.