Mark Spurbeck
CIK 1577048 · View on SEC EDGAR ↗
First SEC filing: June 10, 2026 · Latest: June 10, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 6, 2024 | BTU | S | 10,000 | $29.52 | $295,200 | 65,710 Direct | -13.21% | Disposed | -11.8% (price as of 2026-08-19) |
| Feb. 23, 2024 | BTU | S 10b5-1 | 6,826 | $24.57 | $167,715 | 75,464 Direct | -8.30% | Disposed | 6.0% (price as of 2026-08-19) |
| Jan. 9, 2024 | BTU | S 10b5-1 | 4,827 | $24.94 | $120,385 | 68,638 Direct | -6.57% | Disposed | 4.5% (price as of 2026-08-19) |
| Nov. 3, 2017 | CDE | S | 15,000 | $7.42 | $111,300 | 100,194 Direct | -13.02% | Disposed | 171.8% (price as of 2026-08-19) |
| Sept. 15, 2017 | CDE | S | 9,500 | $9.25 | $87,875 | 115,194 Direct | -7.62% | Disposed | 118.1% (price as of 2026-08-19) |
| June 8, 2017 | CDE | S | 16,400 | $9.76 | $160,064 | 124,694 Direct | -11.62% | Disposed | 106.7% (price as of 2026-08-19) |
| Aug. 4, 2016 | CDE | S | 4,565 | $15.75 | $71,899 | 113,351 Direct | -3.87% | Disposed | 28.1% (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 8, 2017 | CDE | Non-qualified Stock Options (right to buy) | Common Stock (16,400) | $1.81 | Jan. 20, 2026 | 16,400 | Disposed |
| Jan. 20, 2016 | CDE | Non-qualified Stock Options (right to buy) | Common Stock (49,200) | $1.81 | Jan. 20, 2026 | 49,200 | Acquired |
| Jan. 20, 2016 | CDE | Incentive Stock Options (right to buy) | Common Stock (116,279) | $1.81 | Jan. 20, 2026 | 116,279 | Acquired |
| May 13, 2015 | CDE | Non-qualified Stock Options (right to buy) | Common Stock (0) | $11.12 | Jan. 17, 2024 | 0 | Acquired |
| May 13, 2015 | CDE | Incentive Stock Options (right to buy) | Common Stock (0) | $11.12 | Jan. 17, 2024 | 0 | Acquired |
| Jan. 17, 2015 | CDE | Incentive Stock Options (right to buy) | Common Stock (0) | $11.12 | Jan. 17, 2024 | 0 | Acquired |
| Jan. 17, 2015 | CDE | Non-qualified Stock Options (right to buy) | Common Stock (0) | $11.12 | Jan. 17, 2024 | 0 | Acquired |
| May 21, 2014 | CDE | Non-qualified Stock Options (right to buy) | Common Stock (0) | $11.12 | Jan. 17, 2024 | 0 | Acquired |
| May 21, 2014 | CDE | Incentive Stock Options (right to buy) | Common Stock (0) | $11.12 | Jan. 17, 2024 | 0 | Acquired |
| Jan. 17, 2014 | CDE | Non-qualified Stock Options (right to buy) | Common Stock (9,638) | $11.12 | Jan. 17, 2024 | 9,638 | Acquired |
| Jan. 17, 2014 | CDE | Incentive Stock Options (right to buy) | Common Stock (22,779) | $11.12 | Jan. 17, 2024 | 22,779 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 14, 2020 | BTU | Common Stock | — | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $687,500 | $258,334 | — | — | $898,669 | — | $64,961 | $3,690,064 |
| 2024 | $642,000 | $279,167 | — | — | $749,591 | — | $60,641 | $2,861,175 |
| 2023 | $613,500 | $265,700 | — | — | $996,470 | — | $50,177 | $2,775,833 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.