Michael R. Johnson
Insider
First SEC filing: May 22, 2014 · Latest: May 22, 2014
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 3, 2015 | MTX | M | 653 | · | · | 653 Direct | · | Acquired | (price as of 2026-10-02) |
| June 3, 2015 | MTX | F | 218 | $69.41 | $15,131 | 435 Direct | -33.38% | Disposed | -4.3% (price as of 2026-10-02) |
| June 3, 2015 | MTX | M | 653 | · | · | 4,297 Direct | -13.19% | Disposed | (price as of 2026-10-02) |
| Jan. 20, 2015 | MTX | A | 2,991 | · | · | 4,950 Direct | +152.68% | Acquired | (price as of 2026-10-02) |
| Jan. 20, 2015 | MTX | A | 5,257 | · | · | 8,779 Direct | +149.26% | Acquired | (price as of 2026-10-02) |
| June 3, 2014 | MTX | A | 1,959 | · | · | 1,959 Direct | · | Acquired | (price as of 2026-10-02) |
| June 3, 2014 | MTX | A | 3,522 | · | · | 3,522 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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 3, 2015 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 653 | Disposed |
| Jan. 20, 2015 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 2,991 | Acquired |
| Jan. 20, 2015 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $60.18 | Jan. 20, 2025 | 5,257 | Acquired |
| June 3, 2014 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,959 | Acquired |
| June 3, 2014 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $61.26 | June 3, 2024 | 3,522 | 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 |
|---|---|---|---|---|
| May 22, 2014 | MTX | Common Stock | 0 | Direct |