Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 32 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

32 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 19, 2025 MUX S 12,600 $14.35 $180,810 3,814 Direct -76.76% Disposed 23.6% (price as of 2026-10-02)
June 18, 2024 MUX S 2,503 $9.80 $24,529 751 Direct -76.92% Disposed 81.0% (price as of 2026-10-02)
Feb. 24, 2011 MUX P 12,000 $6.50 $78,000 22,000 Direct +120.00% Acquired -72.7% (price as of 2026-10-02)
May 7, 2010 MUX S 40,000 $3.51 $140,400 10,000 Direct -80.00% Disposed -49.5% (price as of 2026-10-02)
Jan. 5, 2010 MUX P 10,000 · · 10,000 Direct · Acquired (price as of 2026-10-02)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 28, 2026 MUX Restricted Stock Units Common Stock (500) · · 500 Disposed
June 28, 2026 MUX Restricted Stock Units Common Stock (1,200) · · 1,200 Disposed
Dec. 20, 2025 MUX Restricted Stock Units Common Stock (500) · · 500 Disposed
Dec. 20, 2025 MUX Restricted Stock Units Common Stock (1,200) · · 1,200 Disposed
Nov. 10, 2025 MUX Restricted Stock Units Common Stock (500) · · 500 Disposed
Nov. 10, 2025 MUX Restricted Stock Units Common Stock (1,200) · · 1,200 Disposed
Sept. 19, 2025 MUX Stock Option (right to buy) Common Stock (12,600) $1.25 Sept. 28, 2025 12,600 Disposed
Sept. 8, 2025 MUX Restricted Stock Units Common Stock (1,500) · · 1,500 Acquired
Aug. 11, 2025 MUX Restricted Stock Units Common Stock (3,600) · · 3,600 Acquired
Aug. 11, 2025 MUX Stock Option (right to buy) Common Stock (40,000) $10.43 Aug. 11, 2030 40,000 Acquired
Sept. 29, 2020 MUX Stock Option (right to buy) Common Stock (126,000) $1.25 Sept. 28, 2025 126,000 Acquired
June 11, 2019 MUX Stock Option (right to buy) Common Stock (80,000) $1.67 June 10, 2024 80,000 Acquired
March 28, 2012 MUX Exchangeable Shares Common Stock (29,250) · · 29,250 Disposed
Jan. 24, 2012 MUX Exchangeable Shares Common Stock (29,250) · · 29,250 Acquired
June 6, 2011 MUX Stock Option Right to Buy Common Stock (10,000) $1.69 Aug. 6, 2018 10,000 Disposed
June 6, 2011 MUX Stock Option Right to Buy Common Stock (10,000) $0.91 Jan. 7, 2019 10,000 Disposed
March 15, 2011 MUX Stock Option Right to Buy Common Stock (93,000) $7.10 March 15, 2021 93,000 Acquired
May 7, 2010 MUX Stock Option (Rt. to Buy) Common Stock (10,000) $0.91 Jan. 7, 2019 10,000 Disposed
May 7, 2010 MUX Stock Option (Rt. To Buy) Common Stock (30,000) $1.69 Aug. 6, 2018 30,000 Disposed
Feb. 17, 2010 MUX Stock Option - Right to Buy Common Stock (75,000) $2.51 Feb. 17, 2020 75,000 Acquired
Jan. 7, 2009 MUX Stock Option (Rt. to Buy) Common Stock (30,000) $0.91 Jan. 7, 2019 30,000 Acquired

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

Initial ownership (Form 3) 6 holdings

07

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

DateTickerSecuritySharesOwnership
June 10, 2019 MUX Common Stock 10,000 Direct
June 10, 2019 MUX Options (right to buy)→ Common Stock (75,000) 75,000 Direct
June 10, 2019 MUX Warrants (right to purchase)→ Common Stock (5,000) 5,000 Direct
Aug. 21, 2008 MUX Stock Option (right to buy)→ Common stock (24,000) 24,000 Direct
Aug. 21, 2008 MUX Stock Option (right to buy)→ Common stock (15,000) 15,000 Direct
Aug. 21, 2008 MUX Stock Option (right to buy)→ Common stock (150,000) 150,000 Direct