Gary L Castagna
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 |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 24, 2018 | MTX | A | 5,796 | · | · | 12,771 Direct | +83.10% | Acquired | (price as of 2026-10-06) |
| Jan. 23, 2018 | MTX | A | 9,955 | · | · | 49,700 Direct | +25.05% | Acquired | (price as of 2026-10-06) |
| Jan. 22, 2018 | MTX | F | 1,015 | $76.70 | $77,850 | 27,838 Direct | -3.52% | Disposed | -13.0% (price as of 2026-10-06) |
| Jan. 20, 2018 | MTX | M | 3,461 | · | · | 28,853 Direct | +13.63% | Acquired | (price as of 2026-10-06) |
| Jan. 20, 2018 | MTX | M | 3,461 | · | · | 6,975 Direct | -33.16% | Disposed | (price as of 2026-10-06) |
| Jan. 19, 2018 | MTX | M | 3,190 | · | · | 26,323 Direct | +13.79% | Acquired | (price as of 2026-10-06) |
| Jan. 19, 2018 | MTX | F | 931 | $75.78 | $70,551 | 25,392 Direct | -3.54% | Disposed | -11.9% (price as of 2026-10-06) |
| Jan. 19, 2018 | MTX | M | 3,190 | · | · | 10,436 Direct | -23.41% | Disposed | (price as of 2026-10-06) |
| Jan. 17, 2018 | MTX | M | 1,893 | · | · | 23,761 Direct | +8.66% | Acquired | (price as of 2026-10-06) |
| Jan. 17, 2018 | MTX | F | 628 | $75.45 | $47,383 | 23,133 Direct | -2.64% | Disposed | -11.5% (price as of 2026-10-06) |
| Jan. 17, 2018 | MTX | M | 1,893 | · | · | 13,626 Direct | -12.20% | Disposed | (price as of 2026-10-06) |
| June 3, 2017 | MTX | M | 9,031 | · | · | 25,996 Direct | +53.23% | Acquired | (price as of 2026-10-06) |
| June 3, 2017 | MTX | F | 4,128 | $74.32 | $306,793 | 21,868 Direct | -15.88% | Disposed | -10.2% (price as of 2026-10-06) |
| June 3, 2017 | MTX | M | 9,031 | · | · | 15,519 Direct | -36.79% | Disposed | (price as of 2026-10-06) |
| Jan. 20, 2017 | MTX | M | 3,462 | · | · | 18,042 Direct | +23.74% | Acquired | (price as of 2026-10-06) |
| Jan. 20, 2017 | MTX | F | 1,077 | $78.39 | $84,426 | 16,965 Direct | -5.97% | Disposed | -14.8% (price as of 2026-10-06) |
| Jan. 20, 2017 | MTX | M | 3,462 | · | · | 24,550 Direct | -12.36% | Disposed | (price as of 2026-10-06) |
| Jan. 19, 2017 | MTX | M | 3,190 | · | · | 15,639 Direct | +25.62% | Acquired | (price as of 2026-10-06) |
| Jan. 19, 2017 | MTX | F | 1,059 | $77.53 | $82,104 | 14,580 Direct | -6.77% | Disposed | -13.9% (price as of 2026-10-06) |
| Jan. 19, 2017 | MTX | M | 3,190 | · | · | 28,012 Direct | -10.22% | Disposed | (price as of 2026-10-06) |
| Jan. 17, 2017 | MTX | A | 5,678 | · | · | 31,202 Direct | +22.25% | Acquired | (price as of 2026-10-06) |
| Jan. 17, 2017 | MTX | A | 9,749 | · | · | 39,745 Direct | +32.50% | Acquired | (price as of 2026-10-06) |
| Dec. 27, 2016 | MTX | G | 500 | · | · | 12,449 Direct | -3.86% | Disposed | (price as of 2026-10-06) |
| June 3, 2016 | MTX | M | 9,032 | · | · | 17,078 Direct | +112.25% | Acquired | (price as of 2026-10-06) |
| June 3, 2016 | MTX | F | 4,129 | $57.56 | $237,665 | 12,949 Direct | -24.18% | Disposed | 16.0% (price as of 2026-10-06) |
| June 3, 2016 | MTX | M | 9,032 | · | · | 25,524 Direct | -26.14% | Disposed | (price as of 2026-10-06) |
| Jan. 20, 2016 | MTX | M | 3,462 | · | · | 9,260 Direct | +59.71% | Acquired | (price as of 2026-10-06) |
| Jan. 20, 2016 | MTX | F | 1,214 | $37.48 | $45,501 | 8,046 Direct | -13.11% | Disposed | 78.1% (price as of 2026-10-06) |
| Jan. 20, 2016 | MTX | M | 3,462 | · | · | 34,556 Direct | -9.11% | Disposed | (price as of 2026-10-06) |
| Jan. 19, 2016 | MTX | A | 9,570 | · | · | 38,018 Direct | +33.64% | Acquired | (price as of 2026-10-06) |
| Jan. 19, 2016 | MTX | A | 16,538 | · | · | 29,996 Direct | +122.89% | Acquired | (price as of 2026-10-06) |
| June 3, 2015 | MTX | M | 9,033 | · | · | 9,033 Direct | · | Acquired | (price as of 2026-10-06) |
| June 3, 2015 | MTX | F | 3,235 | $69.41 | $224,541 | 5,798 Direct | -35.81% | Disposed | -3.8% (price as of 2026-10-06) |
| June 3, 2015 | MTX | M | 9,033 | · | · | 28,448 Direct | -24.10% | Disposed | (price as of 2026-10-06) |
| Jan. 20, 2015 | MTX | A | 10,385 | · | · | 37,481 Direct | +38.33% | Acquired | (price as of 2026-10-06) |
| Jan. 20, 2015 | MTX | A | 8,762 | · | · | 13,458 Direct | +186.58% | Acquired | (price as of 2026-10-06) |
| June 3, 2014 | MTX | A | 24,484 | · | · | 27,096 Direct | +937.37% | Acquired | (price as of 2026-10-06) |
| June 3, 2014 | MTX | A | 2,612 | · | · | 2,612 Direct | · | Acquired | (price as of 2026-10-06) |
| June 3, 2014 | MTX | A | 4,696 | · | · | 4,696 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| Jan. 24, 2018 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 5,796 | Acquired |
| Jan. 23, 2018 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $76.38 | Jan. 23, 2028 | 9,955 | Acquired |
| Jan. 20, 2018 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,461 | Disposed |
| Jan. 19, 2018 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,190 | Disposed |
| Jan. 17, 2018 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,893 | Disposed |
| June 3, 2017 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 9,031 | Disposed |
| Jan. 20, 2017 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,462 | Disposed |
| Jan. 19, 2017 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,190 | Disposed |
| Jan. 17, 2017 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 5,678 | Acquired |
| Jan. 17, 2017 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $78.03 | Jan. 17, 2027 | 9,749 | Acquired |
| June 3, 2016 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 9,032 | Disposed |
| Jan. 20, 2016 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,462 | Disposed |
| Jan. 19, 2016 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 9,570 | Acquired |
| Jan. 19, 2016 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $38.28 | Jan. 19, 2026 | 16,538 | Acquired |
| June 3, 2015 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 9,033 | Disposed |
| Jan. 20, 2015 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 10,385 | Acquired |
| Jan. 20, 2015 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $60.18 | Jan. 20, 2025 | 8,762 | Acquired |
| June 3, 2014 | MTX | DRSUs | Common Stock | · | · | 24,484 | Acquired |
| June 3, 2014 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 2,612 | Acquired |
| June 3, 2014 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $61.26 | June 3, 2024 | 4,696 | 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 |
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 |
|---|---|---|---|---|---|---|---|---|
| 2016 | $477,596 | · | · | · | $685,672 | $387,895 | $15,600 | $2,168,416 |
| 2015 | $467,789 | $200,000 | · | · | $866,919 | $247,492 | $15,600 | $2,620,737 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.