Matthew E Garth
Insider
First SEC filing: Dec. 5, 2022 · Latest: Oct. 15, 2025
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 10, 2025 | XRAY | A | 556 | · | · | 44,011 Direct | +1.28% | Acquired | (price as of 2026-10-02) |
| July 11, 2025 | XRAY | A | 432 | · | · | 43,455 Direct | +1.00% | Acquired | (price as of 2026-10-02) |
| May 30, 2025 | XRAY | A | 173,800 | · | · | 173,800 Direct | · | Acquired | (price as of 2026-10-02) |
| May 30, 2025 | XRAY | A | 43,023 | · | · | 43,023 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 6, 2024 | SMG | J | 5 | $74.75 | $374 | 29,179 Direct | +0.02% | Acquired | -34.4% (price as of 2026-10-02) |
| Dec. 1, 2024 | SMG | F | 3,123 | $76.97 | $240,377 | 29,173 Direct | -9.67% | Disposed | -36.3% (price as of 2026-10-02) |
| Nov. 14, 2024 | SMG | A | 18,336 | · | · | 40,374 Direct | +83.20% | Acquired | (price as of 2026-10-02) |
| Nov. 14, 2024 | SMG | F | 8,078 | $74.48 | $601,649 | 32,296 Direct | -20.01% | Disposed | -34.2% (price as of 2026-10-02) |
| Nov. 8, 2024 | SMG | A | 42,017 | · | · | 42,017 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 6, 2024 | SMG | J | 6 | $67.97 | $408 | 22,038 Direct | +0.03% | Acquired | -27.9% (price as of 2026-10-02) |
| June 7, 2024 | SMG | J | 6 | $68.22 | $409 | 22,032 Direct | +0.03% | Acquired | -28.1% (price as of 2026-10-02) |
| March 8, 2024 | SMG | J | 6 | $67.87 | $407 | 22,027 Direct | +0.03% | Acquired | -27.8% (price as of 2026-10-02) |
| Feb. 16, 2024 | SMG | A | 14,935 | · | · | 14,935 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2024 | SMG | A | 10,940 | · | · | 22,021 Direct | +98.73% | Acquired | (price as of 2026-10-02) |
| Dec. 8, 2023 | SMG | J | 5 | $60.47 | $302 | 11,081 Direct | +0.05% | Acquired | -18.9% (price as of 2026-10-02) |
| Dec. 1, 2023 | SMG | F | 3,098 | $58.15 | $180,149 | 11,076 Direct | -21.86% | Disposed | -15.7% (price as of 2026-10-02) |
| Nov. 16, 2023 | SMG | A | 79,982 | · | · | 79,982 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 8, 2023 | SMG | J | 5 | $54.71 | $274 | 14,174 Direct | +0.04% | Acquired | -10.4% (price as of 2026-10-02) |
| Aug. 15, 2023 | SMG | A | 588 | $42.99 | $25,278 | 14,168 Direct | +4.33% | Acquired | 14.0% (price as of 2026-10-02) |
| Feb. 3, 2023 | SMG | A | 28,599 | $82.27 | $2,352,840 | 28,599 Direct | · | Acquired | -40.4% (price as of 2026-10-02) |
| Dec. 1, 2022 | SMG | A | 13,580 | · | · | 13,580 Direct | · | Acquired | (price as of 2026-10-02) |
| March 7, 2022 | MTX | P | 100 | $63.75 | $6,375 | 13,591 Direct | +0.74% | Acquired | 4.2% (price as of 2026-10-02) |
| Jan. 26, 2022 | MTX | M | 2,619 | · | · | 14,828 Direct | +21.45% | Acquired | (price as of 2026-10-02) |
| Jan. 26, 2022 | MTX | F | 1,337 | $70.62 | $94,419 | 13,491 Direct | -9.02% | Disposed | -5.9% (price as of 2026-10-02) |
| Jan. 26, 2022 | MTX | M | 2,619 | · | · | 16,218 Direct | -13.90% | Disposed | (price as of 2026-10-02) |
| Jan. 25, 2022 | MTX | A | 8,132 | · | · | 18,837 Direct | +75.96% | Acquired | (price as of 2026-10-02) |
| Jan. 25, 2022 | MTX | A | 13,967 | · | · | 13,967 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 22, 2022 | MTX | M | 3,108 | · | · | 13,797 Direct | +29.08% | Acquired | (price as of 2026-10-02) |
| Jan. 22, 2022 | MTX | F | 1,588 | $70.26 | $111,573 | 12,209 Direct | -11.51% | Disposed | -5.5% (price as of 2026-10-02) |
| Jan. 22, 2022 | MTX | M | 3,108 | · | · | 10,705 Direct | -22.50% | Disposed | (price as of 2026-10-02) |
| Jan. 21, 2022 | MTX | M | 2,848 | · | · | 12,215 Direct | +30.40% | Acquired | (price as of 2026-10-02) |
| Jan. 21, 2022 | MTX | F | 1,526 | $71.48 | $109,078 | 10,689 Direct | -12.49% | Disposed | -7.1% (price as of 2026-10-02) |
| Jan. 21, 2022 | MTX | M | 2,848 | · | · | 13,813 Direct | -17.09% | Disposed | (price as of 2026-10-02) |
| Jan. 26, 2021 | MTX | A | 7,857 | · | · | 16,661 Direct | +89.24% | Acquired | (price as of 2026-10-02) |
| Jan. 26, 2021 | MTX | A | 13,495 | · | · | 13,495 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 25, 2021 | MTX | F | 855 | $65.93 | $56,370 | 9,367 Direct | -8.36% | Disposed | 0.8% (price as of 2026-10-02) |
| Jan. 23, 2021 | MTX | M | 1,745 | · | · | 10,222 Direct | +20.59% | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2021 | MTX | M | 1,745 | · | · | 8,804 Direct | -16.54% | Disposed | (price as of 2026-10-02) |
| Jan. 22, 2021 | MTX | M | 3,108 | · | · | 10,000 Direct | +45.10% | Acquired | (price as of 2026-10-02) |
| Jan. 22, 2021 | MTX | F | 1,523 | $65.58 | $99,878 | 8,477 Direct | -15.23% | Disposed | 1.3% (price as of 2026-10-02) |
| Jan. 22, 2021 | MTX | M | 3,108 | · | · | 10,549 Direct | -22.76% | Disposed | (price as of 2026-10-02) |
| Jan. 21, 2021 | MTX | M | 2,849 | · | · | 8,361 Direct | +51.69% | Acquired | (price as of 2026-10-02) |
| Jan. 21, 2021 | MTX | F | 1,469 | $66.32 | $97,424 | 6,892 Direct | -17.57% | Disposed | 0.2% (price as of 2026-10-02) |
| Jan. 21, 2021 | MTX | M | 2,849 | · | · | 13,657 Direct | -17.26% | Disposed | (price as of 2026-10-02) |
| Jan. 23, 2020 | MTX | M | 1,746 | · | · | 6,368 Direct | +37.78% | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2020 | MTX | F | 856 | $56.74 | $48,569 | 5,512 Direct | -13.44% | Disposed | 17.1% (price as of 2026-10-02) |
| Jan. 23, 2020 | MTX | M | 1,746 | · | · | 16,506 Direct | -9.57% | Disposed | (price as of 2026-10-02) |
| Jan. 22, 2020 | MTX | M | 3,109 | · | · | 6,142 Direct | +102.51% | Acquired | (price as of 2026-10-02) |
| Jan. 22, 2020 | MTX | F | 1,520 | $57.38 | $87,218 | 4,622 Direct | -24.75% | Disposed | 15.8% (price as of 2026-10-02) |
| Jan. 22, 2020 | MTX | M | 3,109 | · | · | 18,252 Direct | -14.55% | Disposed | (price as of 2026-10-02) |
| Jan. 21, 2020 | MTX | A | 14,677 | · | · | 46,145 Direct | +46.64% | Acquired | (price as of 2026-10-02) |
| Jan. 21, 2020 | MTX | A | 8,545 | · | · | 21,361 Direct | +66.67% | Acquired | (price as of 2026-10-02) |
| Jan. 17, 2020 | MTX | M | 1,559 | · | · | 3,880 Direct | +67.17% | Acquired | (price as of 2026-10-02) |
| Jan. 17, 2020 | MTX | F | 847 | $58.87 | $49,863 | 3,033 Direct | -21.83% | Disposed | 12.8% (price as of 2026-10-02) |
| Jan. 17, 2020 | MTX | M | 1,559 | · | · | 12,816 Direct | -10.85% | Disposed | (price as of 2026-10-02) |
| Jan. 23, 2019 | MTX | M | 1,746 | · | · | 3,176 Direct | +122.10% | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2019 | MTX | F | 855 | $53.82 | $46,016 | 2,321 Direct | -26.92% | Disposed | 23.4% (price as of 2026-10-02) |
| Jan. 23, 2019 | MTX | M | 1,746 | · | · | 14,375 Direct | -10.83% | Disposed | (price as of 2026-10-02) |
| Jan. 22, 2019 | MTX | A | 8,406 | · | · | 15,202 Direct | +123.69% | Acquired | (price as of 2026-10-02) |
| Jan. 22, 2019 | MTX | A | 919 | · | · | 16,121 Direct | +6.05% | Acquired | (price as of 2026-10-02) |
| Jan. 22, 2019 | MTX | A | 14,439 | · | · | 31,468 Direct | +84.79% | Acquired | (price as of 2026-10-02) |
| Jan. 17, 2019 | MTX | M | 1,559 | · | · | 2,277 Direct | +217.13% | Acquired | (price as of 2026-10-02) |
| Jan. 17, 2019 | MTX | F | 847 | $53.64 | $45,433 | 1,430 Direct | -37.20% | Disposed | 23.8% (price as of 2026-10-02) |
| Jan. 17, 2019 | MTX | M | 1,559 | · | · | 6,796 Direct | -18.66% | Disposed | (price as of 2026-10-02) |
| Jan. 24, 2018 | MTX | A | 5,237 | · | · | 8,355 Direct | +167.96% | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2018 | MTX | A | 8,996 | · | · | 17,029 Direct | +111.99% | Acquired | (price as of 2026-10-02) |
| Jan. 17, 2018 | MTX | M | 1,560 | · | · | 1,560 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 17, 2018 | MTX | F | 842 | $75.45 | $63,529 | 718 Direct | -53.97% | Disposed | -12.0% (price as of 2026-10-02) |
| Jan. 17, 2018 | MTX | M | 1,560 | · | · | 3,118 Direct | -33.35% | Disposed | (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 |
|---|---|---|---|---|---|---|---|
| May 30, 2025 | XRAY | Stock Option (Right to Buy) | Common Stock | $15.98 | May 30, 2035 | 173,800 | Acquired |
| Nov. 8, 2024 | SMG | Stock Option (right to buy) | Common Shares | $72.60 | Nov. 8, 2034 | 42,017 | Acquired |
| Feb. 16, 2024 | SMG | Stock Option (right to buy) | Common Shares | $57.81 | Feb. 16, 2034 | 14,935 | Acquired |
| Nov. 16, 2023 | SMG | Stock Option (right to buy) | Common Shares | $56.87 | Nov. 16, 2033 | 79,982 | Acquired |
| Feb. 3, 2023 | SMG | Stock Option (right to buy) | Common Shares | $82.27 | Feb. 3, 2033 | 28,599 | Acquired |
| Jan. 26, 2022 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 2,619 | Disposed |
| Jan. 25, 2022 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 8,132 | Acquired |
| Jan. 25, 2022 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $69.81 | Jan. 25, 2032 | 13,967 | Acquired |
| Jan. 22, 2022 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,108 | Disposed |
| Jan. 21, 2022 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 2,848 | Disposed |
| Jan. 26, 2021 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 7,857 | Acquired |
| Jan. 26, 2021 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $66.00 | Jan. 26, 2031 | 13,495 | Acquired |
| Jan. 23, 2021 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,745 | Disposed |
| Jan. 22, 2021 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,108 | Disposed |
| Jan. 21, 2021 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 2,849 | Disposed |
| Jan. 23, 2020 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,746 | Disposed |
| Jan. 22, 2020 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 3,109 | Disposed |
| Jan. 21, 2020 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $57.66 | Jan. 21, 2030 | 14,677 | Acquired |
| Jan. 21, 2020 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 8,545 | Acquired |
| Jan. 17, 2020 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,559 | Disposed |
| Jan. 23, 2019 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,746 | Disposed |
| Jan. 22, 2019 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 8,406 | Acquired |
| Jan. 22, 2019 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 919 | Acquired |
| Jan. 22, 2019 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $54.44 | Jan. 22, 2029 | 14,439 | Acquired |
| Jan. 17, 2019 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | $0.00 | · | 1,559 | Disposed |
| Jan. 24, 2018 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 5,237 | Acquired |
| Jan. 23, 2018 | MTX | Employee Stock Option (Right to Buy) | Common Stock | $76.38 | Jan. 23, 2028 | 8,996 | Acquired |
| Jan. 17, 2018 | MTX | Deferred Restricted Stock Units (DRSUs) | Common Stock | · | · | 1,560 | 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.
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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $350,685 | · | $2,118,608 | $676,116 | · | · | $648,949 | $3,794,358 |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2022 | $549,228 | · | $567,695 | $338,824 | · | · | $38,809 | $1,494,556 |
| 2021 | $549,814 | · | $518,562 | $259,279 | $977,608 | · | $36,945 | $2,342,208 |
| 2020 | $533,800 | · | $492,747 | $246,368 | $695,520 | · | $36,152 | $2,004,587 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.