Chemnitz Gregory R. — SEC Form 4 filings
SEC reporting owner CIK 1519910. 27 Form 4 filings on record with FilingPulse; latest filed 2026-09-09.
Transaction summary — filings shown
Covers all 27 filings on record, filed 2024-02-22 to 2026-09-09. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 21 legs across 10 filings — 25,381 shares, $3,212,122 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 52.
- Largest priced transaction: sale of 4,000 shares @ $157.09 ($628,360) in MATERION Corp, filed 2026-02-19.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| MATERION Corp (MTRN) | VP General Counsel & Secretary | 27 | — | 21 legs · 25,381 sh · $3,212,122 | 52 |
Form 4 filings — Chemnitz Gregory R.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-09 | 4 | MATERION Corp (MTRN) | Grant/award (A): 2 (derivative) @ $0 | EDGAR |
| 2026-06-16 | 4 | MATERION Corp (MTRN) | Grant/award (A): 2 (derivative) @ $0 | EDGAR |
| 2026-03-10 | 4 | MATERION Corp (MTRN) | Grant/award (A): 5 @ $0 · Tax withholding (F): 5 @ $144.19 · Grant/award (A): 4 (derivative) @ $0 | EDGAR |
| 2026-03-03 | 4 | MATERION Corp (MTRN) | Option exercise (M): 2,003 @ $0 · Tax withholding (F): 1,211 @ $166.59 · Option exercise (M): 3,040 @ $113.28 · Option exercise (M): 1,471 @ $135.58 · Option exercise (M): 1,017 @ $87.36 · Tax withholding (F): 4,445 @ $157.26 · +8 more | EDGAR |
| 2026-02-19 | 4 | MATERION Corp (MTRN) | Sale (S): 4,000 @ $157.09 | EDGAR |
| 2026-02-13 | 4 | MATERION Corp (MTRN) | Grant/award (A): 2,196 @ $0 | EDGAR |
| 2026-02-03 | 4 | MATERION Corp (MTRN) | Grant/award (A): 98 (derivative) @ $0 | EDGAR |
| 2025-12-09 | 4 | MATERION Corp (MTRN) | Grant/award (A): 4 (derivative) @ $0 | EDGAR |
| 2025-11-06 | 4 | MATERION Corp (MTRN) | Option exercise (M): 1,459 @ $68.82 · Tax withholding (F): 1,053 @ $112.96 · Option exercise (M): 2,254 @ $80.85 · Tax withholding (F): 1,796 @ $113.13 · Sale (S): 864 @ $113.23 · Option exercise (M): 1,459 (derivative) @ $0 · +1 more | EDGAR |
| 2025-09-09 | 4 | MATERION Corp (MTRN) | Grant/award (A): 5 (derivative) @ $0 | EDGAR |
| 2025-08-06 | 4 | MATERION Corp (MTRN) | Sale (S): 918 @ $104.65 · Sale (S): 2,082 @ $105.40 | EDGAR |
| 2025-06-17 | 4 | MATERION Corp (MTRN) | Grant/award (A): 7 (derivative) @ $0 | EDGAR |
| 2025-05-06 | 4 | MATERION Corp (MTRN) | Sale (S): 930 @ $79.85 · Sale (S): 939 @ $80.86 · Sale (S): 130 @ $81.70 · Sale (S): 1 @ $83.33 | EDGAR |
| 2025-03-11 | 4 | MATERION Corp (MTRN) | Grant/award (A): 8 @ $0 · Tax withholding (F): 6 @ $88.77 · Grant/award (A): 7 (derivative) @ $0 | EDGAR |
| 2025-03-04 | 4 | MATERION Corp (MTRN) | Option exercise (M): 2,679 @ $0 · Tax withholding (F): 1,356 @ $87.36 · Option exercise (M): 2,679 (derivative) @ $0 · Grant/award (A): 2,068 (derivative) @ $0 · Grant/award (A): 3,051 (derivative) @ $0 | EDGAR |
| 2025-02-18 | 4 | MATERION Corp (MTRN) | Grant/award (A): 2,020 @ $0 | EDGAR |
| 2024-12-10 | 4 | MATERION Corp (MTRN) | Grant/award (A): 6 (derivative) @ $0 | EDGAR |
| 2024-11-12 | 4 | MATERION Corp (MTRN) | Sale (S): 500 @ $116.67 · Sale (S): 1,500 @ $117.87 | EDGAR |
| 2024-11-06 | 4 | MATERION Corp (MTRN) | Sale (S): 2,000 @ $105.10 | EDGAR |
| 2024-09-10 | 4 | MATERION Corp (MTRN) | Grant/award (A): 6 (derivative) @ $0 | EDGAR |
| 2024-08-12 | 4 | MATERION Corp (MTRN) | Sale (S): 2,000 @ $112.87 | EDGAR |
| 2024-06-10 | 4 | MATERION Corp (MTRN) | Grant/award (A): 6 (derivative) @ $0 | EDGAR |
| 2024-05-15 | 4 | MATERION Corp (MTRN) | Sale (S): 369 @ $112.52 · Sale (S): 1,415 @ $113.38 · Sale (S): 216 @ $114.24 | EDGAR |
| 2024-03-12 | 4 | MATERION Corp (MTRN) | Grant/award (A): 6 @ $0 · Tax withholding (F): 5 @ $132.28 · Grant/award (A): 2,207 (derivative) @ $0 · Grant/award (A): 1,712 (derivative) @ $0 · Grant/award (A): 7 (derivative) @ $0 | EDGAR |
| 2024-03-05 | 4 | MATERION Corp (MTRN) | Option exercise (M): 1,468 @ $0 · Tax withholding (F): 643 @ $135.58 · Option exercise (M): 1,468 (derivative) @ $0 | EDGAR |
| 2024-02-23 | 4 | MATERION Corp (MTRN) | Option exercise (M): 2,665 @ $0 · Grant/award (A): 3,973 @ $131.48 · Tax withholding (F): 1,943 @ $131.48 · Option exercise (M): 2,665 (derivative) @ $0 | EDGAR |
| 2024-02-22 | 4 | MATERION Corp (MTRN) | Sale (S): 272 @ $131.70 · Sale (S): 789 @ $132.79 · Sale (S): 882 @ $133.84 · Sale (S): 1,057 @ $134.89 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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