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 5 of 6
57 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2020-02-05 | BTU | Grant (A) | +14,475 | $0 | EDGAR |
| 2018-01-22 | CDE | Tax (F) | −18,818 | -$156.8K | EDGAR |
| 2017-11-03 | CDE | Sell (S) | −15,000 | -$111.3K | EDGAR |
| 2017-09-19 | CDE | Sell (S) | −9,500 | -$87.9K | EDGAR |
| 2017-06-12 | CDE | Mixed | — | -$130.3K | EDGAR |
| 2017-01-23 | CDE | Tax (F) | −12,578 | -$143.5K | EDGAR |
| 2017-01-19 | CDE | Mixed | +23,921 | -$21.5K | EDGAR |
| 2016-08-05 | CDE | Sell (S) | −4,565 | -$71.9K | EDGAR |
| 2016-05-24 | CDE | Tax (F) | −2,087 | -$16.6K | EDGAR |
| 2016-01-22 | CDE | Mixed | +76,441 | -$4.0K | 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.