Form4insider filings, from the source

Insider · CIK 0001231898

Emily M Liggett

Files at: MTRN, KALU, UCTT, MTSC. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $235k · 1net −$235k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 17Sep 23Sep 28

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 4, 2026 AForm 4 →Sep 9, 4:59 pm EDTMATERION CorpMTRN1——1,272—
Sep 1, 2026 SForm 4 →Sep 3, 10:17 am EDTMATERION CorpMTRN1,012$232.42$235,2103,161−24.3%

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.