Updated Jul 16, 2026
Giljum Matthew C. is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $24K.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2024-10-15 | ARCH | ARCH RESOURCES, INC. | S — Open-market sale [10b5-1] | 169 | $144.75 | $24K |
| 2024-10-15 | ARCH | ARCH RESOURCES, INC. | F — Tax withholding / forfeiture [10b5-1] | 744 | $145.86 | $109K |
| 2024-10-15 | ARCH | ARCH RESOURCES, INC. | M — Option exercise [10b5-1] | 1.7K | — |
Giljum Matthew C. is a corporate insider — currently tracked as Insider. InsiderAlpha tracks every SEC Form 4 filing in real time.
Recorded transactions: 0 open-market purchases () and 1 open-market sales ($24K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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