2026Q1
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Battles Michael Louis | CEO | 82,911 | Aug 4, 2025 |
| Weber Brian P | EVP (CHESI) | 53,412 | Jul 3, 2025 |
| Gerstenberg Eric W | CEO | 51,055 | Jul 3, 2025 |
| Curtis George L | President | 48,664 | Jul 3, 2025 |
| Kraus Eric A | President | 33,108 | Sep 7, 2018 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Mar 4, 2026 | Mar 5, 2026 | MCKIM ALAN S | Chair | Sell | 15.0 | -100,000 | -4.23% | ✗ | $29.3M |
| Feb 23, 2026 | Feb 24, 2026 | GERSTENBERG ERIC W | CEO | Sell | 20.0 | -2,500 | -5.49% | ✗ | $699.7K |
| Feb 19, 2026 | Feb 23, 2026 | MCKIM ALAN S | Chair | Sell | 15.0 | -110,000 | -4.44% | ✗ | $28.1M |
| Feb 20, 2026 | Feb 20, 2026 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 20.0 | -3,540 | -13.24% | ✗ | $998.5K |
| Feb 20, 2026 | Feb 20, 2026 | Dugas Eric J. | CFO | Sell | 20.0 | -2,788 | -14.89% | ✗ | $784.3K |
| Feb 19, 2026 | Feb 20, 2026 | Welch John R. | Director | Sell | 22.5 | -750 | -6.83% | ✗ | $204.8K |
| Feb 2, 2026 | Feb 3, 2026 | Battles Michael Louis | CEO | Sell | 95.0 | +15,775 | 6.35% | ✗ | $1.4M |
| Feb 2, 2026 | Feb 3, 2026 | Weber Brian P | EVP (CHESI) | Sell | 85.0 | +2,828 | 1.76% | ✗ | $362.3K |
| Feb 2, 2026 | Feb 3, 2026 | Underwood Rebecca | President | Sell | 90.0 | +2,926 | 5.47% | ✗ | $110.5K |
| Feb 2, 2026 | Feb 3, 2026 | Harrison Robert W. | EVP, EHS | Sell | 86.3 | +1,249 | 6.94% | ✗ | $47.8K |
| Feb 2, 2026 | Feb 3, 2026 | GERSTENBERG ERIC W | CEO | Sell | 100.0 | +16,046 | 10.57% | ✗ | $1.3M |
| Feb 2, 2026 | Feb 3, 2026 | Geer Charles H. II | EVP, Industrial Services | Sell | 90.0 | +2,149 | 7.70% | ✗ | $51.2K |
| Feb 2, 2026 | Feb 3, 2026 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 87.5 | +2,131 | 2.57% | ✗ | $132K |
| Feb 2, 2026 | Feb 3, 2026 | Dugas Eric J. | CFO | Sell | 90.0 | +3,521 | 5.89% | ✗ | $147.4K |
| Feb 2, 2026 | Feb 3, 2026 | Diderich Jeroen | President | Sell | 86.3 | +4,083 | 9.23% | ✗ | $27.3K |
| Feb 2, 2026 | Feb 3, 2026 | CURTIS GEORGE L | President | Sell | 45.0 | -249 | -0.52% | ✗ | $64.7K |
| Jan 2, 2026 | Jan 5, 2026 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 42.5 | -525 | -1.89% | ✗ | $123.1K |
| Dec 17, 2025 | Dec 29, 2025 | Welch John R. | Director | Neutral | 27.5 | -415 | -3.64% | ✗ | - |
| Dec 15, 2025 | Dec 17, 2025 | Underwood Rebecca | President | Sell | 51.3 | -51 | -0.29% | ✗ | $12.3K |
| Dec 15, 2025 | Dec 17, 2025 | Harrison Robert W. | EVP, EHS | Sell | 52.5 | -16 | -0.28% | ✗ | $3.9K |
| Dec 15, 2025 | Dec 17, 2025 | Geer Charles H. II | EVP, Industrial Services | Sell | 52.5 | -28 | -0.32% | ✗ | $6.7K |
| Dec 16, 2025 | Dec 17, 2025 | GERSTENBERG ERIC W | CEO | Sell | 22.5 | -601 | -1.18% | ✗ | $144.8K |
| Dec 9, 2025 | Dec 11, 2025 | CURTIS GEORGE L | President | Neutral | 27.5 | -1,000 | -2.05% | ✗ | - |
| Dec 1, 2025 | Dec 3, 2025 | Harrison Robert W. | EVP, EHS | Sell | 46.3 | -122 | -2.06% | ✗ | $27.9K |
| Nov 13, 2025 | Nov 14, 2025 | States Lauren | Director | Neutral | 27.5 | -245 | -2.09% | ✗ | - |
| Nov 1, 2025 | Nov 4, 2025 | Geer Charles H. II | EVP, Industrial Services | Sell | 42.5 | -294 | -3.22% | ✗ | $61.9K |
| Sep 16, 2025 | Sep 17, 2025 | MCKIM ALAN S | Chair | Neutral | 37.5 | -12,850 | -0.52% | ✗ | - |
| Aug 5, 2025 | Aug 6, 2025 | Robertson Andrea | Director | Neutral | 27.5 | -430 | -4.35% | ✗ | - |
| Jul 31, 2025 | Aug 4, 2025 | Robertson Andrea | Director | Sell | 22.5 | -836 | -7.80% | ✗ | $195.3K |
| Aug 1, 2025 | Aug 4, 2025 | Battles Michael Louis | CEO | Buy | 85.0 | +2,000 | 2.47% | ✗ | $467K |
| Jul 30, 2025 | Geer Charles H. II | EVP, Industrial Services | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jul 1, 2025 | Jul 3, 2025 | Underwood Rebecca | President | Sell | 42.5 | -1,051 | -5.72% | ✗ | $241.3K |
| Jul 1, 2025 | Jul 3, 2025 | Battles Michael Louis | CEO | Sell | 40.0 | -1,532 | -1.86% | ✗ | $351.7K |
| Jul 1, 2025 | Jul 3, 2025 | GERSTENBERG ERIC W | CEO | Sell | 42.5 | -564 | -1.09% | ✗ | $129.5K |
| Jul 1, 2025 | Jul 3, 2025 | CURTIS GEORGE L | President | Sell | 45.0 | -399 | -0.81% | ✗ | $91.6K |
| Jul 1, 2025 | Jul 3, 2025 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 42.5 | -525 | -1.86% | ✗ | $120.5K |
| Jul 1, 2025 | Jul 3, 2025 | Weber Brian P | EVP (CHESI) | Sell | 40.0 | -1,136 | -2.08% | ✗ | $260.8K |
| Jul 1, 2025 | Jul 3, 2025 | Dugas Eric J. | CFO | Sell | 42.5 | -613 | -3.08% | ✗ | $140.7K |
| Jul 1, 2025 | Jul 3, 2025 | MCKIM ALAN S | Chair | Sell | 45.0 | -1,342 | -0.05% | ✗ | $308.1K |
| Jun 13, 2025 | Jun 16, 2025 | Weber Brian P | EVP (CHESI) | Sell | 20.0 | -3,035 | -5.27% | ✗ | $689.5K |
| Jun 6, 2025 | Jun 9, 2025 | GERSTENBERG ERIC W | CEO | Sell | 17.5 | -8,076 | -13.53% | ✗ | $1.8M |
| Jun 4, 2025 | Jun 6, 2025 | MCKIM ALAN S | Chair | Sell | 15.0 | -100,000 | -3.86% | ✗ | $22.4M |
| Jun 5, 2025 | Jun 6, 2025 | Quirk Alison A. | Director | Sell | 22.5 | -893 | -23.07% | ✗ | $199.8K |
| Jun 2, 2025 | Jun 3, 2025 | Dugas Eric J. | CFO | Sell | 42.5 | -806 | -3.89% | ✗ | $182.8K |
| Jun 2, 2025 | Jun 3, 2025 | Diderich Jeroen | President | Sell | 40.0 | -1,540 | -10.06% | ✗ | $349.3K |
| May 28, 2025 | May 29, 2025 | Welch John R. | Director | Sell | 20.0 | -1,250 | -9.88% | ✗ | $285.6K |
| May 27, 2025 | May 28, 2025 | Speights Robert | President | Sell | 22.5 | -1,022 | -5.90% | ✗ | $233.5K |
| May 27, 2025 | May 28, 2025 | States Lauren | Director | Neutral | 27.5 | -130 | -1.10% | ✗ | - |
| May 21, 2025 | May 23, 2025 | Quirk Alison A. | Director | Neutral | 90.0 | +789 | 25.60% | ✗ | - |
| May 21, 2025 | May 23, 2025 | Polito Karyn | Director | Neutral | 90.0 | +789 | 35.44% | ✗ | - |
| May 21, 2025 | May 23, 2025 | States Lauren | Director | Sell | 40.0 | -47 | -0.39% | ✗ | $189.1K |
| May 21, 2025 | May 23, 2025 | Welch John R. | Director | Neutral | 85.0 | +789 | 6.65% | ✗ | - |
| May 21, 2025 | May 23, 2025 | Stewart Shelley JR | Director | Neutral | 90.0 | +789 | 25.60% | ✗ | - |
| May 21, 2025 | May 23, 2025 | Robertson Andrea | Director | Neutral | 85.0 | +789 | 7.94% | ✗ | - |
| May 21, 2025 | May 23, 2025 | Reed Marcy L. | Director | Neutral | 90.0 | +789 | 15.39% | ✗ | - |
| May 21, 2025 | May 23, 2025 | PRESTON JOHN T | Director | Neutral | 90.0 | +789 | 14.08% | ✗ | - |
| May 21, 2025 | May 23, 2025 | GALANTE EDWARD G | Director | Neutral | 82.5 | +789 | 3.28% | ✗ | - |
| May 21, 2025 | May 23, 2025 | Willett Robert | Director | Neutral | 85.0 | +789 | 9.19% | ✗ | - |
| May 2, 2025 | May 2, 2025 | Speights Robert | President | Neutral | 27.5 | -16,612 | -48.94% | ✗ | - |
| Apr 1, 2025 | Apr 3, 2025 | CURTIS GEORGE L | President | Neutral | 82.5 | +2,000 | 4.25% | ✗ | - |
| Mar 17, 2025 | Apr 2, 2025 | Weber Brian P | EVP (CHESI) | Sell | 42.5 | -5,052 | -8.07% | ✗ | $185K |
| Mar 17, 2025 | Apr 2, 2025 | Dugas Eric J. | CFO | Sell | 42.5 | -3,531 | -14.57% | ✗ | $121.7K |
| Mar 17, 2025 | Apr 2, 2025 | Speights Robert | President | Sell | 40.0 | -6,064 | -15.16% | ✗ | $478.6K |
| Mar 17, 2025 | Apr 2, 2025 | GERSTENBERG ERIC W | CEO | Sell | 42.5 | -5,722 | -8.75% | ✗ | $188.7K |
| Mar 17, 2025 | Apr 2, 2025 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 42.5 | -3,463 | -10.91% | ✗ | $128.7K |
| Mar 17, 2025 | Apr 2, 2025 | Battles Michael Louis | CEO | Sell | 42.5 | -5,893 | -6.67% | ✗ | $221.6K |
| Mar 17, 2025 | Apr 2, 2025 | CURTIS GEORGE L | President | Sell | 42.5 | -2,603 | -5.24% | ✗ | $67.7K |
| Mar 17, 2025 | Mar 18, 2025 | Underwood Rebecca | President | Sell | 48.8 | -176 | -0.95% | ✗ | $34K |
| Mar 17, 2025 | Mar 18, 2025 | Harrison Robert W. | EVP, EHS | Sell | 50.0 | -35 | -0.59% | ✗ | $6.8K |
| Mar 17, 2025 | Mar 18, 2025 | Dugas Eric J. | CFO | Sell | 42.5 | -631 | -2.60% | ✗ | $121.7K |
| Mar 17, 2025 | Mar 18, 2025 | Battles Michael Louis | CEO | Sell | 42.5 | -1,149 | -1.30% | ✗ | $221.6K |
| Feb 1, 2025 | Mar 18, 2025 | Battles Michael Louis | CEO | Sell | 92.5 | +11,977 | 4.67% | ✗ | $1M |
| Mar 17, 2025 | Mar 18, 2025 | Weber Brian P | EVP (CHESI) | Sell | 42.5 | -959 | -1.53% | ✗ | $185K |
| Feb 1, 2025 | Mar 18, 2025 | Weber Brian P | EVP (CHESI) | Sell | 90.0 | +3,289 | 5.54% | ✗ | $246.5K |
| Mar 17, 2025 | Mar 18, 2025 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 42.5 | -667 | -2.10% | ✗ | $128.7K |
| Feb 1, 2025 | Mar 18, 2025 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 90.0 | +2,379 | 8.10% | ✗ | $79K |
| Mar 17, 2025 | Mar 18, 2025 | GERSTENBERG ERIC W | CEO | Sell | 42.5 | -978 | -1.50% | ✗ | $188.7K |
| Feb 1, 2025 | Mar 18, 2025 | GERSTENBERG ERIC W | CEO | Sell | 100.0 | +9,760 | 17.54% | ✗ | $1.5M |
| Mar 17, 2025 | Mar 18, 2025 | MCKIM ALAN S | Chair | Sell | 47.5 | -1,265 | -0.05% | ✗ | $244K |
| Mar 17, 2025 | Mar 18, 2025 | Speights Robert | President | Sell | 40.0 | -2,481 | -6.20% | ✗ | $478.6K |
| Mar 17, 2025 | Mar 18, 2025 | CURTIS GEORGE L | President | Sell | 45.0 | -351 | -0.71% | ✗ | $67.7K |
| Feb 1, 2025 | Mar 18, 2025 | CURTIS GEORGE L | President | Sell | 51.3 | -181 | -0.36% | ✗ | $42.2K |
| Mar 10, 2025 | Mar 11, 2025 | Speights Robert | President | Sell | 20.0 | -2,725 | -6.38% | ✗ | $518.9K |
| Feb 1, 2025 | Mar 11, 2025 | Speights Robert | President | Sell | 90.0 | +3,573 | 9.12% | ✗ | $76K |
| Mar 10, 2025 | Mar 11, 2025 | Dugas Eric J. | CFO | Buy | 87.5 | +1,050 | 4.53% | ✗ | $200.9K |
| Feb 1, 2025 | Mar 11, 2025 | Dugas Eric J. | CFO | Sell | 95.0 | +3,607 | 18.42% | ✗ | $68K |
| Mar 3, 2025 | Mar 4, 2025 | MCKIM ALAN S | Chair | Sell | 15.0 | -81,072 | -1.59% | ✗ | $11.1M |
| Feb 18, 2025 | Feb 19, 2025 | States Lauren | Director | Sell | 22.5 | -308 | -2.52% | ✗ | $70.5K |
| Feb 1, 2025 | Feb 11, 2025 | Battles Michael Louis | CEO | Sell | 92.5 | +11,167 | 4.35% | ✗ | $1.2M |
| Nov 1, 2024 | Feb 11, 2025 | Battles Michael Louis | CEO | Sell | 42.5 | -806 | -1.04% | ✗ | $187.8K |
| Feb 1, 2025 | Feb 5, 2025 | Battles Michael Louis | CEO | Sell | 92.5 | +11,167 | 4.31% | ✗ | $1.2M |
| Feb 1, 2025 | Feb 5, 2025 | GERSTENBERG ERIC W | CEO | Sell | 100.0 | +8,950 | 16.08% | ✗ | $1.7M |
| Feb 1, 2025 | Feb 5, 2025 | Underwood Rebecca | President | Sell | 95.0 | +3,151 | 20.45% | ✗ | $69.7K |
| Feb 1, 2025 | Feb 5, 2025 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 90.0 | +1,941 | 6.61% | ✗ | $181K |
| Feb 1, 2025 | Feb 5, 2025 | Speights Robert | President | Sell | 90.0 | +3,123 | 7.97% | ✗ | $180.8K |
| Feb 1, 2025 | Feb 5, 2025 | Diderich Jeroen | President | Neutral | 90.0 | +4,312 | 39.20% | ✗ | - |
| Feb 1, 2025 | Feb 5, 2025 | Dugas Eric J. | CFO | Sell | 95.0 | +3,083 | 15.74% | ✗ | $190.1K |
| Feb 1, 2025 | Feb 4, 2025 | CURTIS GEORGE L | President | Sell | 45.0 | -452 | -0.91% | ✗ | $105.3K |
| Feb 1, 2025 | Feb 4, 2025 | Harrison Robert W. | EVP, EHS | Neutral | 90.0 | +1,476 | 32.93% | ✗ | - |
| Feb 1, 2025 | Feb 4, 2025 | Weber Brian P | EVP (CHESI) | Sell | 90.0 | +2,563 | 4.32% | ✗ | $415.7K |