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.
Loading insider history…
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 3 of 6
57 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-06-02 | BTU | Grant (A) | +123 | $2.2K | EDGAR |
| 2023-02-24 | BTU | Mixed | +21,069 | $558.3K | EDGAR |
| 2023-01-06 | BTU | Mixed | +10,713 | -$153.3K | EDGAR |
| 2023-01-06 | BTU | Mixed | −22,519 | -$597.4K | EDGAR |
| 2023-01-04 | BTU | Mixed | −10,085 | -$564.1K | EDGAR |
| 2022-06-03 | BTU | Sell (S) | −12,742 | -$309.8K | EDGAR |
| 2022-02-25 | BTU | Sell (S) | −532 | -$9.0K | EDGAR |
| 2022-02-22 | BTU | Mixed | +1,064 | $44.5K | EDGAR |
| 2022-01-06 | BTU | Mixed | −24,051 | -$276.6K | EDGAR |
| 2022-01-04 | BTU | Mixed | +15,069 | -$92.5K | 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.