Gary L Castagna
CIK 1189741 · View on SEC EDGAR ↗
First SEC filing: May 22, 2014 · Latest: May 22, 2014
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
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. 20, 2015 | MTX | A | 10,385 | — | — | 37,481 Direct | +38.33% | Acquired | (price as of 2026-08-20) |
| Jan. 20, 2015 | MTX | A | 8,762 | — | — | 13,458 Direct | +186.58% | Acquired | (price as of 2026-08-20) |
| June 3, 2014 | MTX | A | 24,484 | — | — | 27,096 Direct | +937.37% | Acquired | (price as of 2026-08-20) |
| June 3, 2014 | MTX | A | 2,612 | — | — | 2,612 Direct | — | Acquired | (price as of 2026-08-20) |
| June 3, 2014 | MTX | A | 4,696 | — | — | 4,696 Direct | — | Acquired | (price as of 2026-08-20) |
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. 20, 2015 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock (10,385) | — | — | 10,385 | Acquired |
| Jan. 20, 2015 | MTX | Employee Stock Option (Right to Buy) | Common Stock (8,762) | $60.18 | Jan. 20, 2025 | 8,762 | Acquired |
| June 3, 2014 | MTX | DRSUs | Common Stock (24,484) | — | — | 24,484 | Acquired |
| June 3, 2014 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock (2,612) | — | — | 2,612 | Acquired |
| June 3, 2014 | MTX | Employee Stock Option (Right to Buy) | Common Stock (4,696) | $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.
MTX
President, Performance Materials| 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.