Spurbeck Mark

Officer · BTU

As of 2026-09-16, Spurbeck Mark has 16 Form 4 transactions on record across 1 company — 9 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $1.9MIndirect: $0$1.9Mas of 2026-09-16
  • Direct $1.9M
  • Indirect $0
BTUdirect68,652 sh$1.9M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

BTU · 16 trades
2026-09-03: Award / grant, 92 sh ($3K)2026-06-08: Award / grant, 89 sh ($3K)2026-03-10: Award / grant, 77 sh ($3K)2026-03-04: Sale, 30,000 sh ($1.1M)2026-02-18: Withheld for tax, 7,549 sh ($251K)2026-02-18: Award / grant, 17,136 sh ($0)2026-01-02: Withheld for tax, 7,811 sh ($240K)2026-01-02: Award / grant, 14,626 sh ($0)2025-12-03: Award / grant, 92 sh ($3K)2025-09-03: Award / grant, 159 sh ($3K)2025-06-04: Award / grant, 312 sh ($4K)2025-03-11: Award / grant, 84 sh ($1K)2025-01-03: Withheld for tax, 2,546 sh ($52K)2025-01-02: Withheld for tax, 2,276 sh ($47K)2025-01-02: Award / grant, 20,373 sh ($0)2024-12-04: Award / grant, 84 sh ($2K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-04BTUSale30,000 @ $35.58$1.1M−30.5% of holding68,394Form 4
15 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-03BTUAward / grant9268,652Form 4
2026-06-08BTUAward / grant8968,560Form 4
2026-03-10BTUAward / grant7768,471Form 4
2026-02-18BTUWithheld for tax7,54998,394Form 4
2026-02-18BTUAward / grant17,136105,943Form 4
2026-01-02BTUWithheld for tax7,81188,807Form 4
2026-01-02BTUAward / grant14,62696,618Form 4
2025-12-03BTUAward / grant9281,992Form 4
2025-09-03BTUAward / grant15981,900Form 4
2025-06-04BTUAward / grant31281,741Form 4
2025-03-11BTUAward / grant8481,429Form 4
2025-01-03BTUWithheld for tax2,54681,345Form 4
2025-01-02BTUWithheld for tax2,27663,518Form 4
2025-01-02BTUAward / grant20,37383,891Form 4
2024-12-04BTUAward / grant8465,794Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.