Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 4 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

4 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 27, 2017 MUX P 3,255 · · 14,255 Direct +29.59% Acquired (price as of 2026-10-05)
Sept. 22, 2017 MUX P 5,500 · · 5,500 Direct · Acquired (price as of 2026-10-05)
Sept. 22, 2017 MUX P 11,000 · · 11,000 Direct · Acquired (price as of 2026-10-05)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 11, 2019 MUX Stock Option (right to buy) Common Stock (200,000) $1.67 June 10, 2024 200,000 Acquired
May 24, 2019 MUX Warrant - right to purchase Common Stock (3,250) $2.00 March 26, 2022 3,250 Acquired
Sept. 22, 2017 MUX Common Stock Purchase Warrant (Right to Buy) Common Stock (5,500) $2.70 Sept. 28, 2018 5,500 Acquired
April 17, 2017 MUX Stock Option (Right to Buy) Common Stock (210,000) $3.11 April 17, 2022 210,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
April 25, 2017 MUX Common Stock 0 Direct

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MUX

President, Exploration(5)(9)(10)
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2019 $226,110 $101,750 · $112,962 · · $13,394 $454,216
2018 $207,133 · · · · · $4,131 $211,264
2017 $146,459 $77,084 · $333,900 · · $988 $558,431

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.