Insider · CIK 0001519910
Gregory R. Chemnitz
Files at MTRN (MATERION Corp). First filing Nov 6, 2024, latest Mar 3, 2026.
In brief
Gregory R. Chemnitz files SEC Form 4 as officer at MTRN (MATERION Corp). Since Nov 6, 2024, Gregory R. Chemnitz has reported 0 open-market buys worth $0 and 7 open-market sells worth $2.4M, the latest filed on Mar 3, 2026.
A track record needs three past buys with six months of prices behind them; Gregory R. Chemnitz has 0, so none is measured yet.
The newest scored trade: sold $711k of MTRN on Mar 3, 2026, filed Mar 3, 2026, scored 46 (moderate). In the last 12 months: 0 buys worth $0 and 3 sells worth $1.4M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MTRN: MATERION Corp
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 46Moderate | MATERION Corp | $711k 4,517 shares | -43% | +125% from low-3% from high | |
| 60Notable | MATERION Corp | $628k 4,000 shares | -32% | +113% from low-4% from high | |
| 10Weak | MTRNsell MATERION Corp | $98k 864 shares | -8% | +55% from low-17% from high | |
| 49Moderate | MATERION Corp | $316k 3,000 shares | -22% | +47% from low-12% from high | |
| 31Weak | MTRNsell MATERION Corp | $161k 2,000 shares | -13% | +10% from low-34% from high | |
| 33Weak | MTRNsell MATERION Corp | $235k 2,000 shares | -14% | - | |
| 32Weak | MTRNsell MATERION Corp | $210k 2,000 shares | -12% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Mar 3, 2026 | MTRN MATERION Corp | 4,517 0.02% of outstanding | $711k | Mar 3, 2026 | $68k |
| Feb 17, 2026 | MTRN MATERION Corp | 4,000 0.02% of outstanding | $628k | Feb 17, 2026 | none |
| Nov 4, 2025 | MTRN MATERION Corp | 864 0.00% of outstanding | $98k | Nov 4, 2025 | $316k |
| Aug 4, 2025 | MTRN MATERION Corp | 3,000 0.01% of outstanding | $316k | Aug 4, 2025 | $161k |
| May 5, 2025 | MTRN MATERION Corp | 2,000 0.01% of outstanding | $161k | May 5, 2025 | none |
| Nov 7, 2024 | MTRN MATERION Corp | 2,000 0.01% of outstanding | $235k | Nov 7, 2024 | $436k |
| Nov 4, 2024 | MTRN MATERION Corp | 2,000 0.01% of outstanding | $210k | Nov 4, 2024 | $226k |
Transactions
The newest 50 of 51 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +2 | $0.00 | $0 | 3,547 | 34 d ago |
| Jun 12, 2026 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +2 | $0.00 | $0 | 3,545 | Jun 16, 2026 |
| Mar 6, 2026 | MTRN MATERION Corp | AGrant or award Common Stock | +5 | $0.00 | $0 | 5,935 | Mar 10, 2026 |
| Mar 9, 2026 | MTRN MATERION Corp | FTax withholding Common Stock | -5 | $144.19 | $721 | 5,930 | Mar 10, 2026 |
| Mar 6, 2026 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +4 | $0.00 | $0 | 3,543 | Mar 10, 2026 |
| Mar 1, 2026 | MTRN MATERION Corp | MOption exercise Common Stock | +2,003 | $0.00 | $0 | 10,575 | Mar 3, 2026 |
| Mar 2, 2026 | MTRN MATERION Corp | FTax withholding Common Stock | -1,211 | $166.59 | $202k | 9,364 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | MOption exercise Common Stock | +3,040 | $113.28 | $344k | 12,404 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | MOption exercise Common Stock | +1,471 | $135.58 | $199k | 13,875 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | MOption exercise Common Stock | +1,017 | $87.36 | $89k | 14,892 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | FTax withholding Common Stock | -4,445 | $157.26 | $699k | 10,447 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | SOpen-market sale Common Stock | -1,083 | $157.52 | $171k | 9,364 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | SOpen-market sale Common Stock | -3,434 | $157.26 | $540k | 5,930 | Mar 3, 2026 |
| Mar 1, 2026 | MTRN MATERION Corp | MOption exercise Restricted Stock Unitsderivative | -2,003 | $0.00 | $0 | 2,060 | Mar 3, 2026 |
| Mar 1, 2026 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +1,479 | $0.00 | $0 | 3,539 | Mar 3, 2026 |
| Mar 1, 2026 | MTRN MATERION Corp | AGrant or award Stock Appreciation Rightsderivative | +2,265 | $0.00 | $0 | 2,265 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | MOption exercise Stock Appreciation Rightsderivative | -3,040 | $0.00 | $0 | 0 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | MOption exercise Stock Appreciation Rightsderivative | -1,471 | $0.00 | $0 | 736 | Mar 3, 2026 |
| Mar 3, 2026 | MTRN MATERION Corp | MOption exercise Stock Appreciation Rightsderivative | -1,017 | $0.00 | $0 | 2,034 | Mar 3, 2026 |
| Feb 17, 2026 | MTRN MATERION Corp | SOpen-market sale Common Stock | -4,000 | $157.09 | $628k | 8,572 | Feb 19, 2026 |
| Feb 12, 2026 | MTRN MATERION Corp | AGrant or award Common Stock | +2,196 | $0.00 | $0 | 12,572 | Feb 13, 2026 |
| Jan 31, 2026 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +98 | $0.00 | $0 | 4,063 | Feb 3, 2026 |
| Dec 5, 2025 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +4 | $0.00 | $0 | 3,965 | Dec 9, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | MOption exercise Common Stock | +1,459 | $68.82 | $100k | 11,835 | Nov 6, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | FTax withholding Common Stock | -1,053 | $112.96 | $119k | 10,782 | Nov 6, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | MOption exercise Common Stock | +2,254 | $80.85 | $182k | 13,036 | Nov 6, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | FTax withholding Common Stock | -1,796 | $113.13 | $203k | 11,240 | Nov 6, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -864 | $113.23 | $98k | 10,376 | Nov 6, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | MOption exercise Stock Appreciation Rightsderivative | -1,459 | $0.00 | $0 | 0 | Nov 6, 2025 |
| Nov 4, 2025 | MTRN MATERION Corp | MOption exercise Stock Appreciation Rightsderivative | -2,254 | $0.00 | $0 | 0 | Nov 6, 2025 |
| Sep 5, 2025 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +5 | $0.00 | $0 | 3,961 | Sep 9, 2025 |
| Aug 4, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -918 | $104.65 | $96k | 12,458 | Aug 6, 2025 |
| Aug 4, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -2,082 | $105.40 | $219k | 10,376 | Aug 6, 2025 |
| Jun 13, 2025 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +7 | $0.00 | $0 | 3,956 | Jun 17, 2025 |
| May 5, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -930 | $79.85 | $74k | 14,446 | May 6, 2025 |
| May 5, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -939 | $80.86 | $76k | 13,507 | May 6, 2025 |
| May 5, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -130 | $81.70 | $11k | 13,377 | May 6, 2025 |
| May 5, 2025 | MTRN MATERION Corp | SOpen-market sale Common Stock | -1 | $83.33 | $83 | 13,376 | May 6, 2025 |
| Mar 7, 2025 | MTRN MATERION Corp | AGrant or award Common Stock | +8 | $0.00 | $0 | 15,382 | Mar 11, 2025 |
| Mar 10, 2025 | MTRN MATERION Corp | FTax withholding Common Stock | -6 | $88.77 | $533 | 15,376 | Mar 11, 2025 |
| Mar 7, 2025 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +7 | $0.00 | $0 | 3,949 | Mar 11, 2025 |
| Mar 1, 2025 | MTRN MATERION Corp | MOption exercise Common Stock | +2,679 | $0.00 | $0 | 16,730 | Mar 4, 2025 |
| Mar 3, 2025 | MTRN MATERION Corp | FTax withholding Common Stock | -1,356 | $87.36 | $118k | 15,374 | Mar 4, 2025 |
| Mar 1, 2025 | MTRN MATERION Corp | MOption exercise Restricted Stock Unitsderivative | -2,679 | $0.00 | $0 | 1,874 | Mar 4, 2025 |
| Mar 1, 2025 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +2,068 | $0.00 | $0 | 3,942 | Mar 4, 2025 |
| Mar 1, 2025 | MTRN MATERION Corp | AGrant or award Stock Appreciation Rightsderivative | +3,051 | $0.00 | $0 | 3,051 | Mar 4, 2025 |
| Feb 13, 2025 | MTRN MATERION Corp | AGrant or award Common Stock | +2,020 | $0.00 | $0 | 14,051 | Feb 18, 2025 |
| Dec 6, 2024 | MTRN MATERION Corp | AGrant or award Restricted Stock Unitsderivative | +6 | $0.00 | $0 | 4,553 | Dec 10, 2024 |
| Nov 7, 2024 | MTRN MATERION Corp | SOpen-market sale Common Stock | -500 | $116.67 | $58k | 13,531 | Nov 12, 2024 |
| Nov 7, 2024 | MTRN MATERION Corp | SOpen-market sale Common Stock | -1,500 | $117.87 | $177k | 12,031 | Nov 12, 2024 |
Questions about Gregory R. Chemnitz
Answered from the filings on this page, as of the latest one.
Is Gregory R. Chemnitz buying or selling?
In the last 12 months Gregory R. Chemnitz reported 0 open-market buys worth $0 and 3 open-market sells worth $1.4M on SEC Form 4; the latest was sold $711k of MTRN on Mar 3, 2026. Grants, option exercises and tax withholding are not counted.
How did Gregory R. Chemnitz's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Gregory R. Chemnitz has 0.
Where does Gregory R. Chemnitz file Form 4?
Gregory R. Chemnitz has filed Form 4 at MTRN (MATERION Corp) as VP General Counsel & Secretary. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.