MTRN insider buying and SEC filings, explained
Materion Corp. · CIK 1104657
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$7.6M
Planned sales (10b5-1)
$406K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 1, 2026 | Sale | Emily M. Liggett (Director) sold 1,012 shares at about $232.42 ($235K). Holdings down 24% to 3,161 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| Aug 31, 2026 | Sale | Vinod M. Khilnani (Director) sold 2,000 shares at about $235.16 ($470K). Holdings down 15% to 11,171 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 1, 2026 |
| Aug 7, 2026 | Sale | Darlene J. S. Solomon (Director) sold 3,705 shares at about $292.22 ($1.1M). Holdings down 12% to 26,718 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| May 29, 2026 | Sale | Robert J. Phillippy (Director) sold 3,500 shares at about $218.62 ($765K). Holdings down 49% to 3,664 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 1, 2026 |
| May 13, 2026 | Sale | Vinod M. Khilnani (Director) sold 2,500 shares at about $207.00 ($518K). Holdings down 16% to 13,171 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 15, 2026 |
| Mar 3, 2026 | Sale | Melissa A Fashinpaur (Chief Accounting Officer) sold 309 shares at $160.00 ($49K). Holdings down 50% to 310 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 3, 2026 |
| Mar 3, 2026 | Planned (10b5-1) | Shelly Marie Chadwick (CFO) sold 2,539 shares at about $160.06 ($406K), marked as a 10b5-1 plan trade. Holdings down 14% to 15,243 shares. | SEC filing Filed Mar 3, 2026 |
| Feb 23, 2026 | Sale | Shelly Marie Chadwick (CFO) sold 8,976 shares at about $146.13 ($1.3M). Holdings down 36% to 16,139 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 25, 2026 |
| Feb 18, 2026 | Sale | Jugal K. Vijayvargiya (CEO and Director) sold 12,245 shares at about $156.86 ($1.9M). Holdings down 9% to 118,008 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 20, 2026 |
| Feb 17, 2026 | Sale | Gregory R. Chemnitz (VP General Counsel & Secretary) sold 4,000 shares at $157.09 ($628K). Holdings down 32% to 8,572 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 19, 2026 |
| Feb 17, 2026 | Sale | Vinod M. Khilnani (Director) sold 4,000 shares at about $148.87 ($595K). Holdings down 23% to 13,665 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 19, 2026 |
87 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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