Mark Spurbeck
CIK 1577048 · EVP and CFO · last filed 2026-06-10
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$3.48M
Companies
3
Total Filings
57
Lifetime Open-Market Net
-$4.02M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Recent Filings · Page 4 of 6
57 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-09-17 | BTU | Sell (S) | −20,246 | -$336.9K | EDGAR |
| 2021-07-06 | BTU | Tax (F) | −4,926 | -$40.3K | EDGAR |
| 2021-04-05 | BTU | Mixed | −513 | -$1.6K | EDGAR |
| 2021-02-24 | BTU | Sell (S) | −194 | -$757 | EDGAR |
| 2021-02-22 | BTU | Mixed | +1,295 | -$2.8K | EDGAR |
| 2021-01-26 | BTU | Mixed | −2,182 | -$7.3K | EDGAR |
| 2021-01-07 | BTU | Sell (S) | −837 | -$2.6K | EDGAR |
| 2021-01-05 | BTU | Mixed | +49,983 | -$7.4K | EDGAR |
| 2020-07-02 | BTU | Grant (A) | +27,200 | $0 | EDGAR |
| 2020-04-06 | BTU | Tax (F) | −1,660 | -$5.6K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.