Michael Leon Stein
CIK 1531136 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 26, 2012 · Latest: Jan. 26, 2012
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 14 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
14 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 22, 2017 | MUX | P | 39,011 | — | — | 39,011 Direct | — | Acquired | (price as of 2026-08-19) |
| Sept. 22, 2017 | MUX | P | 78,022 | — | — | 522,892 Direct | +17.54% | Acquired | (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 11, 2019 | MUX | Stock Option (right to buy) | Common Stock (75,000) | $1.67 | June 10, 2024 | 75,000 | Acquired |
| May 24, 2019 | MUX | Warrant - right to purchase | Common Stock (25,000) | $2.00 | March 26, 2022 | 25,000 | Acquired |
| Sept. 22, 2017 | MUX | Common Stock Purchase Warrant (Right to Buy) | Common Stock (39,011) | $2.70 | Sept. 28, 2018 | 39,011 | Acquired |
| Nov. 27, 2015 | MUX | Stock Option (Right to Buy) | Common Stock (75,000) | $1.02 | Nov. 26, 2020 | 75,000 | Acquired |
| Aug. 12, 2014 | MUX | Stock Option (right to buy) | Common Stock (45,000) | — | May 13, 2015 | 45,000 | Acquired |
| Aug. 11, 2014 | MUX | Stock Option (right to buy) | Common Stock (45,000) | $2.90 | Aug. 11, 2019 | 45,000 | Acquired |
| July 30, 2013 | MUX | Exchangeable Shares | Common Stock (399,870) | — | — | 399,870 | Disposed |
| May 21, 2013 | MUX | Stock Option-Right to Buy | Common Stock (45,000) | $2.25 | May 21, 2018 | 45,000 | Acquired |
| Dec. 18, 2012 | MUX | Exchangeable Shares | Common Stock (28,620) | — | — | 28,620 | Acquired |
| Dec. 18, 2012 | MUX | Subscription Rights (Right to Buy) | Exchangeable Shares (28,620) | — | Dec. 4, 2012 | 286,200 | Disposed |
| Nov. 30, 2012 | MUX | Exchangeable Shares | Common Stock (33,750) | — | — | 33,750 | Acquired |
| Nov. 30, 2012 | MUX | Subscription Rights (Right to Buy) | Exchangeable Shares (33,750) | — | Dec. 4, 2012 | 337,500 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.