| Mar 19, 2026 | Eric W Gerstenberg | CO-CEO | -1.00K | $293.00 | -$293.00K | SELL | -2.51% | 38.88K | Mar 18 | View |
| Mar 19, 2026 | Marcy L Reed | — | -836.00 | $287.94 | -$240.72K | SELL | -14.13% | 5.08K | Mar 18 | View |
| Mar 17, 2026 | Brian P Weber | EVP (CHESI) | -7.51K | $292.63 | -$1.65M | SELL | -13.36% | 48.73K | Mar 13 - Mar 17 | View |
| Mar 05, 2026 | ALAN MCKIM | EXEC CHAIR, CTO. | -100.00K | $292.65 | -$29.26M | SELL | -4.55% | 2.10M | Mar 04 | View |
| Feb 24, 2026 | Eric W Gerstenberg | CO-CEO | -2.50K | $279.86 | -$699.65K | SELL | -5.49% | 43.02K | Feb 23 | View |
| Feb 23, 2026 | ALAN MCKIM | EXEC CHAIR, CTO. | -110.00K | $281.14 | -$28.11M | SELL | -4.50% | 2.33M | Feb 19 | View |
| Feb 20, 2026 | Sharon M Gabriel | EVP/CIO (CHESI) | -3.54K | $282.07 | -$998.53K | SELL | -13.24% | 23.19K | Feb 20 | View |
| Feb 20, 2026 | Eric J Dugas | EVP CHIEF FINANCIAL OFFICER | -2.79K | $281.31 | -$784.29K | SELL | -14.89% | 15.93K | Feb 20 | View |
| Feb 20, 2026 | John R Welch | — | -750.00 | $273.07 | -$204.80K | SELL | -6.83% | 10.24K | Feb 19 | View |
| Dec 17, 2025 | Eric W Gerstenberg | CO-CEO | -601.00 | $240.90 | -$144.78K | SELL | -1.18% | 50.45K | Dec 16 | View |
| Aug 04, 2025 | Andrea Robertson | — | -836.00 | $233.64 | -$195.32K | SELL | -7.80% | 9.89K | Jul 31 | View |
| Aug 04, 2025 | Michael Battles | CO-CEO | 2.00K | $233.50 | $467.00K | BUY | 2.47% | 82.91K | Aug 01 | View |
| Jun 16, 2025 | Brian P Weber | EVP (CHESI) | -3.04K | $227.17 | -$689.46K | SELL | -5.27% | 54.55K | Jun 13 | View |
| Jun 09, 2025 | Eric W Gerstenberg | CO-CEO | -8.08K | $225.23 | -$1.82M | SELL | -13.53% | 51.62K | Jun 06 | View |
| Jun 06, 2025 | ALAN MCKIM | EXEC CHAIR, CTO. | -100.00K | $224.47 | -$22.45M | SELL | -4.00% | 2.40M | Jun 04 - Jun 05 | View |
| Jun 06, 2025 | Alison A Quirk | — | -893.00 | $223.69 | -$199.76K | SELL | -23.07% | 2.98K | Jun 05 | View |
| May 29, 2025 | John R Welch | — | -1.25K | $228.51 | -$285.64K | SELL | -9.88% | 11.40K | May 28 | View |
| May 28, 2025 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -1.02K | $228.49 | -$233.52K | SELL | -5.90% | 16.31K | May 27 | View |
| May 23, 2025 | Lauren States | — | -47.00 | $226.17 | -$189.08K | SELL | -0.39% | 11.87K | May 21 - May 22 | View |
| Mar 11, 2025 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -2.73K | $190.44 | -$518.95K | SELL | -6.38% | 40.01K | Mar 10 | View |
| Mar 11, 2025 | Eric J Dugas | EVP CHIEF FINANCIAL OFFICER | 1.05K | $191.38 | $200.95K | BUY | 4.53% | 24.24K | Mar 10 | View |
| Mar 04, 2025 | ALAN MCKIM | EXEC CHAIR, CTO. | -81.07K | $210.28 | -$11.14M | SELL | -68.88% | 36.63K | Mar 03 | View |
| Feb 19, 2025 | Lauren States | — | -308.00 | $228.79 | -$70.47K | SELL | -2.52% | 11.92K | Feb 18 | View |
| Jan 16, 2025 | Lauren States | — | -308.00 | $239.04 | -$73.62K | SELL | -2.46% | 12.23K | Jan 15 | View |
| Dec 17, 2024 | Lauren States | — | -308.00 | $245.06 | -$75.48K | SELL | -2.40% | 12.53K | Dec 16 | View |
| Nov 27, 2024 | Brian P Weber | EVP (CHESI) | -861.00 | $261.31 | -$224.99K | SELL | -1.43% | 59.35K | Nov 27 | View |
| Nov 18, 2024 | Lauren States | — | -308.00 | $249.78 | -$76.93K | SELL | -2.34% | 12.84K | Nov 15 | View |
| Nov 18, 2024 | Eric W Gerstenberg | CO-CEO | -6.05K | $250.42 | -$1.52M | SELL | -9.81% | 55.66K | Nov 15 | View |
| Nov 06, 2024 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -610.00 | $240.14 | -$146.49K | SELL | -1.53% | 39.16K | Nov 05 | View |
| Oct 16, 2024 | Lauren States | — | -308.00 | $260.74 | -$80.31K | SELL | -2.29% | 13.15K | Oct 15 | View |
| Sep 17, 2024 | Lauren States | — | -309.00 | $244.09 | -$75.42K | SELL | -2.24% | 13.46K | Sep 16 | View |
| Sep 17, 2024 | Michael Battles | CO-CEO | -10.00K | $245.74 | -$2.46M | SELL | -11.48% | 77.14K | Sep 16 | View |
| Aug 01, 2024 | Andrea Robertson | — | -1.15K | $238.90 | -$274.26K | SELL | -9.98% | 10.36K | Aug 01 | View |
| Jun 13, 2024 | ALAN MCKIM | EXEC CHAIR, CTO. | -50.00K | $215.51 | -$10.78M | SELL | -1.90% | 2.58M | Jun 11 | View |
| May 24, 2024 | Lauren States | — | -1.15K | $218.14 | -$250.42K | SELL | -7.70% | 13.77K | May 23 | View |
| May 06, 2024 | Eric J Dugas | EVP CHIEF FINANCIAL OFFICER | -6.20K | $208.74 | -$1.29M | SELL | -22.40% | 21.48K | May 03 | View |
| Mar 28, 2024 | Brian P Weber | EVP (CHESI) | -8.00K | $199.07 | -$1.59M | SELL | -11.29% | 62.80K | Mar 27 | View |
| Mar 18, 2024 | Eric W Gerstenberg | CO-CEO | -15.28K | $187.71 | -$2.87M | SELL | -18.48% | 67.37K | Mar 15 | View |
| Mar 15, 2024 | John T Preston | — | -1.91K | $188.36 | -$360.33K | SELL | -28.64% | 4.77K | Mar 14 | View |
| Feb 28, 2024 | ALAN MCKIM | EXEC CHAIR, CTO. | -155.53K | $183.14 | -$12.82M | SELL | -5.38% | 2.74M | Feb 26 - Feb 27 | View |
| Dec 22, 2023 | ALAN MCKIM | EXEC CHAIR, CTO. | -17.45K | $178.37 | -$3.11M | SELL | -0.64% | 2.71M | Dec 20 | View |
| Dec 05, 2023 | Robert W Harrison | EVP, EHS | -122.00 | $166.86 | -$20.36K | SELL | -3.49% | 3.37K | Dec 01 | View |
| Nov 27, 2023 | Eric W Gerstenberg | CO-CEO | -8.00K | $164.82 | -$1.32M | SELL | -10.42% | 68.79K | Nov 22 | View |
| Nov 20, 2023 | ALAN MCKIM | EXEC CHAIR, CTO. | -75.00K | $164.56 | -$12.34M | SELL | -2.67% | 2.73M | Nov 16 - Nov 17 | View |
| Aug 30, 2023 | Eric J Dugas | EVP CHIEF FINANCIAL OFFICER | -3.50K | $171.00 | -$598.50K | SELL | -12.23% | 25.11K | Aug 29 | View |
| Aug 28, 2023 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -1.98K | $171.03 | -$339.32K | SELL | -4.89% | 38.60K | Aug 25 | View |
| Aug 24, 2023 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | -10.30K | $171.54 | -$1.77M | SELL | -17.64% | 48.10K | Aug 23 | View |
| Aug 17, 2023 | John T Preston | — | -2.10K | $173.68 | -$363.86K | SELL | -23.87% | 6.68K | Aug 16 | View |
| Aug 08, 2023 | Andrea Roberts | — | -1.20K | $169.08 | -$202.89K | SELL | -10.11% | 10.67K | Aug 08 | View |
| Aug 04, 2023 | Michael Battles | CO-CEO | -10.00K | $171.00 | -$1.71M | SELL | -11.84% | 74.45K | Aug 04 | View |
| Jul 06, 2023 | Sharon M Gabriel | EVP/CIO (CHESI) | -557.00 | $164.43 | -$91.59K | SELL | -2.15% | 25.29K | Jul 03 | View |
| Jul 06, 2023 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -825.00 | $164.43 | -$135.65K | SELL | -1.99% | 40.59K | Jul 03 | View |
| Jul 06, 2023 | Eric W Gerstenberg | CO-CEO | -9.72K | $164.43 | -$1.60M | SELL | -11.15% | 77.53K | Jul 03 | View |
| Jul 06, 2023 | Brian P Weber | EVP (CHESI) | -1.97K | $164.43 | -$323.27K | SELL | -2.82% | 67.87K | Jul 03 | View |
| Jul 06, 2023 | ALAN MCKIM | EXEC CHAIR, CTO. | -1.23K | $164.43 | -$202.41K | SELL | -0.04% | 2.92M | Jul 03 | View |
| Jul 06, 2023 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -898.00 | $164.43 | -$147.66K | SELL | -3.04% | 28.61K | Jul 03 | View |
| Jul 06, 2023 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | -717.00 | $164.43 | -$117.90K | SELL | -1.21% | 58.41K | Jul 03 | View |
| Jul 06, 2023 | Michael Battles | CO-CEO | -6.47K | $164.43 | -$1.06M | SELL | -7.11% | 84.45K | Jul 03 | View |
| Jun 12, 2023 | Sharon M Gabriel | EVP/CIO (CHESI) | -3.23K | $155.71 | -$503.72K | SELL | -11.12% | 25.85K | Jun 09 | View |
| Jun 12, 2023 | Eugene G Banucci | — | -5.02K | $156.09 | -$783.57K | SELL | -47.28% | 5.60K | Jun 09 | View |
| Jun 05, 2023 | John R Welch | — | -1.00K | $150.43 | -$150.43K | SELL | -7.45% | 12.43K | Jun 02 | View |
| May 31, 2023 | Eugene G Banucci | — | -10.00K | $144.59 | -$1.45M | SELL | -48.50% | 10.62K | May 26 | View |
| May 30, 2023 | Brian P Weber | EVP (CHESI) | -3.13K | $142.63 | -$446.57K | SELL | -4.29% | 69.83K | May 25 | View |
| May 26, 2023 | Melkeya McDuffie | EVP, HUMAN RESOURCES OFFICER | -714.00 | $144.29 | -$103.02K | SELL | -6.61% | 10.09K | May 24 | View |
| May 17, 2023 | ALAN MCKIM | EXEC CHAIR, CTO. | -70.00K | $139.15 | -$9.74M | SELL | -2.34% | 2.92M | May 15 - May 16 | View |
| May 05, 2023 | Lauren States | — | -710.00 | $136.13 | -$69.43K | SELL | -5.11% | 13.17K | May 04 | View |
| Apr 04, 2023 | Sharon M Gabriel | EVP/CIO (CHESI) | -196.00 | $142.56 | -$27.94K | SELL | -0.67% | 29.08K | Apr 01 | View |
| Apr 04, 2023 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -346.00 | $142.56 | -$49.33K | SELL | -1.13% | 30.20K | Apr 01 | View |
| Mar 29, 2023 | Michael J Twohig | EVP (CHESI) | -2.00K | $134.42 | -$268.84K | SELL | -6.48% | 28.86K | Mar 27 | View |
| Mar 17, 2023 | Michael Battles | EVP AND CFO | -644.00 | $133.07 | -$85.70K | SELL | -0.70% | 90.92K | Mar 15 | View |
| Mar 17, 2023 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | -221.00 | $133.07 | -$29.41K | SELL | -0.37% | 59.12K | Mar 15 | View |
| Mar 17, 2023 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -305.00 | $133.07 | -$40.59K | SELL | -0.99% | 30.55K | Mar 15 | View |
| Mar 17, 2023 | Sharon M Gabriel | EVP/CIO (CHESI) | -274.00 | $133.07 | -$36.46K | SELL | -0.93% | 29.28K | Mar 15 | View |
| Mar 17, 2023 | Eric W Gerstenberg | CHIEF OPERATING OFFICER(CHESI) | -488.00 | $133.07 | -$64.94K | SELL | -0.56% | 87.25K | Mar 15 | View |
| Mar 17, 2023 | Melkeya McDuffie | EVP, HUMAN RESOURCES OFFICER | -231.00 | $133.07 | -$30.74K | SELL | -2.09% | 10.81K | Mar 15 | View |
| Mar 17, 2023 | ALAN MCKIM | CHRMN.OF BD, PRES. & CEO | -1.16K | $133.07 | -$154.49K | SELL | -0.04% | 3.09M | Mar 15 | View |
| Mar 17, 2023 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -1.36K | $133.07 | -$181.37K | SELL | -3.19% | 41.41K | Mar 15 | View |
| Mar 17, 2023 | Michael J. Twhohig | EVP (CHESI) | -290.00 | $133.07 | -$38.59K | SELL | -0.93% | 30.86K | Mar 15 | View |
| Mar 17, 2023 | Brian P Weber | EVP (CHESI) | -527.00 | $133.07 | -$70.13K | SELL | -0.72% | 72.97K | Mar 15 | View |
| Mar 13, 2023 | Sharon M Gabriel | EVP/CIO (CHESI) | -3.81K | $138.92 | -$529.29K | SELL | -11.42% | 29.55K | Mar 09 | View |
| Mar 08, 2023 | Eugene G. Bannucci | — | -5.00K | $133.97 | -$669.85K | SELL | -19.52% | 20.62K | Mar 07 | View |
| Mar 03, 2023 | John T Preston | — | -3.75K | $134.90 | -$505.88K | SELL | -32.96% | 7.63K | Mar 02 | View |
| Dec 30, 2022 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -3.33K | $113.71 | -$378.31K | SELL | -8.39% | 36.34K | Dec 29 | View |
| Dec 22, 2022 | Eric W Gerstenberg | CHIEF OPERATING OFFICER(CHESI) | -16.41K | $116.02 | -$1.90M | SELL | -21.11% | 61.33K | Dec 21 | View |
| Dec 14, 2022 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -3.27K | $122.39 | -$400.70K | SELL | -11.08% | 26.29K | Dec 13 | View |
| Nov 29, 2022 | ALAN MCKIM | CHRMN.OF BD, PRES. & CEO | -140.00K | $120.45 | -$4.82M | SELL | -4.32% | 3.10M | Nov 28 | View |
| Sep 12, 2022 | Brian P Weber | EVP (CHESI) | -2.00K | $122.42 | -$245.21K | SELL | -3.12% | 62.10K | Sep 09 | View |
| Aug 09, 2022 | John T Preston | — | -2.17K | $111.50 | -$241.74K | SELL | -16.01% | 11.38K | Aug 08 | View |
| Aug 08, 2022 | Andrea Robertson | — | -1.09K | $106.37 | -$116.48K | SELL | -9.27% | 10.72K | Aug 05 | View |
| May 12, 2022 | Michael Battles | EVP AND CFO | 2.00K | $88.35 | $176.70K | BUY | 2.92% | 70.44K | May 12 | View |
| May 11, 2022 | Lauren States | DIRECTOR | -1.05K | $90.68 | -$68.01K | SELL | -8.03% | 12.03K | May 10 | View |
| Mar 28, 2022 | Eric W Gerstenberg | CHIEF OPERATING OFFICER(CHESI) | -6.93K | $106.62 | -$738.56K | SELL | -7.09% | 90.83K | Mar 25 | View |
| Mar 21, 2022 | Alan S McKim | CHRMN.OF BD, PRES. & CEO | -50.18K | $109.32 | -$5.49M | SELL | -1.51% | 3.27M | Mar 17 - Mar 18 | View |
| Feb 28, 2022 | Andrea Robertson | DIRECTOR | -1.00K | $95.30 | -$95.30K | SELL | -8.72% | 10.46K | Feb 25 | View |
| Dec 30, 2021 | Brian P Weber | EVP (CHESI) | -2.39K | $98.90 | -$236.37K | SELL | -3.87% | 59.33K | Dec 30 | View |
| Dec 14, 2021 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | -2.12K | $99.02 | -$209.72K | SELL | -6.60% | 29.96K | Dec 10 | View |
| Dec 06, 2021 | Jeffrey H. Knapp | EVP - HR (CHESI) | -2.46K | $105.47 | -$259.25K | SELL | -46.28% | 2.85K | Nov 19 - Dec 01 | View |
| Nov 24, 2021 | Jeffrey H. Knapp | EVP - HR (CHESI) | -503.00 | $109.22 | -$54.94K | SELL | -8.65% | 5.31K | Nov 23 | View |
| Sep 13, 2021 | Brian P Weber | EVP (CHESI) | -2.52K | $101.42 | -$255.49K | SELL | -4.14% | 58.31K | Sep 10 | View |
| Sep 01, 2021 | Alan S McKim | CHRMN.OF BD, PRES. & CEO | -30.00K | $102.62 | -$3.08M | SELL | -0.88% | 3.37M | Aug 30 - Sep 01 | View |
| Aug 26, 2021 | Alan S McKim | CHRMN.OF BD, PRES. & CEO | -25.00K | $101.76 | -$2.54M | SELL | -0.73% | 3.40M | Aug 25 | View |
| Aug 24, 2021 | Michael Battles | EVP AND CFO | -5.00K | $101.75 | -$508.75K | SELL | -8.02% | 57.35K | Aug 23 | View |
| Aug 23, 2021 | Eric W Gerstenberg | CHIEF OPERATING OFFICER(CHESI) | -17.96K | $100.28 | -$1.80M | SELL | -19.06% | 76.27K | Aug 20 | View |
| Aug 13, 2021 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -2.00K | $102.99 | -$205.98K | SELL | -8.50% | 21.52K | Aug 12 | View |
| Aug 09, 2021 | John R Welch | DIRECTOR | -5.50K | $99.05 | -$544.77K | SELL | -35.09% | 10.17K | Aug 05 | View |
| Aug 06, 2021 | Andrea Robertson | DIRECTOR | -2.17K | $99.14 | -$214.94K | SELL | -16.21% | 11.21K | Aug 05 | View |
| May 12, 2021 | Rod Marlin | DIRECTOR | -6.91K | $95.40 | -$659.19K | SELL | -29.61% | 16.43K | May 10 | View |
| Apr 02, 2021 | Robert Speights | PRESIDENT, INDUSTRIAL SERVICES | 4.89K | $84.34 | -$84.93K | GRANT | 22.62% | 26.50K | Mar 31 - Apr 01 | View |
| Mar 22, 2021 | Rod Marlin | DIRECTOR | -14.84K | $89.08 | -$1.32M | SELL | -100.00% | 0.00 | Mar 18 | View |
| Mar 17, 2021 | Michael J Twohig | EVP (CHESI) | -5.65K | $88.40 | -$432.01K | SELL | -19.14% | 23.88K | Mar 15 | View |
| Mar 05, 2021 | Michael Battles | EVP AND CFO | -10.00K | $86.39 | -$863.90K | SELL | -13.90% | 61.94K | Mar 05 | View |
| Mar 02, 2021 | John T Preston | DIRECTOR | -6.00K | $85.49 | -$512.94K | SELL | -37.67% | 9.93K | Feb 26 | View |
| Mar 01, 2021 | Andrea Robertson | DIRECTOR | -1.50K | $89.42 | -$134.13K | SELL | -11.23% | 11.86K | Feb 25 | View |
| Nov 30, 2020 | Eric J Dugas | — | -3.11K | $74.65 | -$232.24K | SELL | -13.75% | 19.52K | Nov 27 | View |
| Nov 19, 2020 | Brian P Weber | — | -3.60K | $73.73 | -$265.43K | SELL | -5.82% | 58.30K | Nov 17 | View |
| Nov 17, 2020 | Alan S McKim | — | -19.74K | $70.86 | -$1.40M | SELL | -0.57% | 3.46M | Nov 13 | View |
| Nov 12, 2020 | Andrea Robertson | — | -1.27K | $71.90 | -$91.46K | SELL | -8.69% | 13.36K | Nov 10 | View |
| Sep 03, 2020 | Michael Battles | — | -444.00 | $60.00 | -$26.64K | SELL | -0.61% | 72.63K | Sep 01 | View |
| Sep 03, 2020 | Eric J Dugas | — | -196.00 | $60.00 | -$11.76K | SELL | -0.86% | 22.63K | Sep 01 | View |
| Aug 21, 2020 | Eric W Gerstenberg | — | -20.28K | $61.72 | -$1.25M | SELL | -19.11% | 85.83K | Aug 20 | View |
| Aug 14, 2020 | Alan S McKim | — | -31.30K | $64.33 | -$2.01M | SELL | -0.89% | 3.48M | Aug 12 - Aug 13 | View |
| Aug 12, 2020 | Alan S McKim | — | -68.70K | $65.28 | -$4.49M | SELL | -1.92% | 3.51M | Aug 10 - Aug 11 | View |
| Jul 07, 2020 | Jeffrey H. Knapp | — | 500.00 | $32.80 | $16.40K | PURCHASE | 3.99% | 13.03K | Mar 19 | View |
| Jun 10, 2020 | Rod Marlin | — | -5.00K | $69.00 | -$345.00K | SELL | -63.52% | 2.87K | Jun 08 | View |
| Jun 01, 2020 | Eric J Dugas | — | -1.20K | $61.78 | -$74.14K | SELL | -5.82% | 19.43K | May 28 | View |
| May 13, 2020 | Michael Battles | — | 1.65K | $46.45 | $76.64K | PURCHASE | 4.51% | 38.23K | May 13 | View |
| Mar 23, 2020 | Robert Speights | — | 2.46K | $40.62 | $99.97K | PURCHASE | 15.58% | 18.25K | Mar 16 - Mar 23 | View |
| Dec 27, 2019 | Michael J Twohig | EVP (CHESI) | -2.50K | $86.67 | -$216.68K | SELL | -8.47% | 27.00K | Dec 27 | View |
| Dec 04, 2019 | Alan S McKim | CHRMN.OF BD, PRES. & CEO | -20.00K | $82.75 | -$1.66M | SELL | -0.52% | 3.85M | Dec 02 | View |
| Nov 06, 2019 | Brian P Weber | EVP (CHESI) | -1.18K | $84.64 | -$99.45K | SELL | -1.96% | 58.82K | Nov 06 | View |
| Nov 06, 2019 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -1.18K | $82.87 | -$97.46K | SELL | -5.42% | 20.53K | Nov 05 | View |
| Oct 31, 2019 | Andrea Robertson | DIRECTOR | -1.00K | $83.78 | -$83.78K | SELL | -7.43% | 12.47K | Oct 31 | View |
| Oct 31, 2019 | Michael Battles | EVP AND CFO | -5.00K | $83.61 | -$418.05K | SELL | -11.02% | 40.37K | Oct 31 | View |
| Oct 31, 2019 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | -10.41K | $83.82 | -$872.40K | SELL | -18.37% | 46.26K | Oct 31 | View |
| Sep 04, 2019 | Eric J Dugas | SVP FINANCE, CONTROLLER & CAO | -34.00 | $73.85 | -$150.21K | SELL | -0.15% | 22.20K | Sep 01 - Sep 04 | View |
| Aug 19, 2019 | Michael Battles | EVP AND CFO | -1.00K | $76.00 | -$76.00K | SELL | -2.31% | 42.37K | Aug 16 | View |
| Aug 12, 2019 | Eric W Gerstenberg | CHIEF OPERATING OFFICER(CHESI) | -20.00K | $78.52 | -$1.57M | SELL | -21.15% | 74.56K | Aug 08 | View |
| Aug 01, 2019 | Andrea Robertson | DIRECTOR | -2.56K | $78.98 | -$201.95K | SELL | -15.96% | 13.47K | Aug 01 | View |
| Jun 26, 2019 | Rod Marlin | DIRECTOR | -4.27K | $68.58 | -$292.63K | SELL | -10.13% | 37.87K | Jun 26 | View |
| Jun 20, 2019 | Michael Battles | EVP AND CFO | -5.00K | $70.09 | -$350.45K | SELL | -12.50% | 35.00K | Jun 20 | View |
| Jun 06, 2019 | Alan S McKim | CHRMN.OF BD, PRES. & CEO | -11.32K | $65.30 | -$739.07K | SELL | -0.29% | 3.85M | Jun 04 | View |
| May 30, 2019 | Alan S McKim | CHRMN.OF BD, PRES. & CEO | -38.68K | $65.32 | -$2.53M | SELL | -0.99% | 3.86M | May 28 | View |
| May 06, 2019 | Michael Battles | EVP AND CFO | -4.00K | $71.85 | -$287.40K | SELL | -8.89% | 40.97K | May 03 | View |
| Mar 26, 2019 | Brian P Weber | EVP (CHESI) | -1.78K | $71.00 | -$126.17K | SELL | -3.01% | 57.31K | Mar 22 | View |
| Mar 20, 2019 | Michael Battles | EVP AND CFO | -4.00K | $69.74 | -$278.96K | SELL | -7.84% | 47.01K | Mar 19 | View |
| Mar 05, 2019 | Andrea Robertson | DIRECTOR | -1.00K | $66.75 | -$66.75K | SELL | -6.70% | 13.93K | Mar 05 | View |
| Mar 05, 2019 | Rod Marlin | DIRECTOR | -10.00K | $68.50 | -$685.00K | SELL | -72.09% | 3.87K | Mar 01 | View |
| Nov 09, 2018 | Michael Battles | EVP AND CFO | -2.00K | $65.20 | -$130.40K | SELL | -3.63% | 53.11K | Nov 09 | View |
| Nov 07, 2018 | Alan S McKim | CHRMN.OF BD AND CEO | -50.00K | $64.17 | -$3.21M | SELL | -1.24% | 4.00M | Nov 05 - Nov 06 | View |
| Nov 01, 2018 | Andrea Robertson | DIRECTOR | -1.50K | $68.31 | -$102.47K | SELL | -9.13% | 14.93K | Nov 01 | View |
| Sep 24, 2018 | Brian P Weber | EVP (CHESI) | -1.30K | $69.83 | -$91.06K | SELL | -2.01% | 63.57K | Sep 24 | View |
| Sep 07, 2018 | Michael J Twohig | EVP (CHESI) | -4.21K | $69.65 | -$293.30K | SELL | -14.53% | 24.78K | Sep 06 | View |
| Sep 07, 2018 | Eric Kraus | EXEC. VICE PRESIDENT (CHESI) | -1.10K | $69.65 | -$76.61K | SELL | -3.22% | 33.11K | Sep 06 | View |
| Sep 07, 2018 | Grace Cowan | EVP CUSTOMER SERVICE (CHESI) | -424.00 | $70.62 | -$29.94K | SELL | -1.82% | 22.91K | Sep 06 | View |
| Sep 04, 2018 | David M Parry | EXECUTIVE VICE PRESIDENT | -4.58K | $68.76 | -$314.85K | SELL | -9.71% | 42.60K | Aug 31 | View |
| Sep 04, 2018 | Michael Battles | EVP AND CFO | -6.00K | $69.46 | -$416.76K | SELL | -9.69% | 55.90K | Sep 04 | View |
| Aug 08, 2018 | David M Parry | EXECUTIVE VICE PRESIDENT | -3.03K | $61.93 | -$187.40K | SELL | -6.03% | 47.18K | Aug 07 | View |
| Aug 07, 2018 | David J Vergo | PRESIDENT, SAFETY-KLEEN | -2.38K | $62.22 | -$148.33K | SELL | -7.49% | 29.45K | Aug 06 | View |
| Aug 03, 2018 | Andrea Robertson | DIRECTOR | -2.00K | $63.62 | -$127.24K | SELL | -10.85% | 16.43K | Aug 02 | View |
| Jun 25, 2018 | Eric W Gerstenberg | CHIEF OPERATING OFFICER(CHESI) | -8.00K | $55.19 | -$441.52K | SELL | -11.85% | 59.49K | Jun 25 | View |
| Jun 06, 2018 | Michael J Twohig | EVP (CHESI) | -2.84K | $53.43 | -$151.53K | SELL | -10.33% | 24.63K | Jun 05 | View |
| Jun 04, 2018 | Mark G Bouldin | EVP/SK | -573.00 | $53.36 | -$30.57K | SELL | -3.98% | 13.84K | Jun 01 - Jun 04 | View |
| May 25, 2018 | Eric J Dugas | SVP FINANCE AND CAO | -900.00 | $52.76 | -$47.48K | SELL | -4.48% | 19.17K | May 24 | View |
| May 16, 2018 | Alan S McKim | CHRMN.OF BD AND CEO | -160.00K | $52.11 | -$5.21M | SELL | -3.79% | 4.06M | May 14 - May 15 | View |
| May 08, 2018 | Mark G Bouldin | EVP/SK | -2.52K | $51.40 | -$129.48K | SELL | -14.88% | 14.41K | May 07 | View |
| Mar 22, 2018 | Alan S McKim | CHRMN.OF BD AND CEO | -42.67K | $51.45 | -$2.20M | SELL | -20.40% | 166.48K | Mar 21 - Mar 22 | View |
| Mar 08, 2018 | John T Preston | DIRECTOR | -5.00K | $50.93 | -$254.65K | SELL | -34.66% | 9.43K | Mar 06 | View |
| Mar 07, 2018 | Mark G Bouldin | EVP/SK | -703.00 | $47.62 | -$33.48K | SELL | -3.81% | 17.74K | Mar 02 | View |
| Dec 28, 2017 | Eric W Gerstenberg | CHIEF OPERATING OFFICER | -7.15K | $52.77 | -$377.31K | SELL | -8.29% | 79.05K | Dec 27 | View |
| Dec 28, 2017 | Brian P Weber | EVP (CHESI) | -1.87K | $53.00 | -$99.11K | SELL | -3.17% | 57.20K | Dec 28 | View |
| Dec 27, 2017 | Eric W Gerstenberg | CHIEF OPERATING OFFICER | -5.14K | $53.04 | -$272.78K | SELL | -5.63% | 86.20K | Dec 26 | View |
| Dec 21, 2017 | Mark G Bouldin | EVP/SK | -325.00 | $52.62 | -$17.10K | SELL | -1.58% | 20.24K | Dec 20 | View |
| Dec 04, 2017 | Eric J Dugas | SVP FINANCE AND CAO | -1.14K | $53.26 | -$60.66K | SELL | -7.64% | 13.78K | Dec 01 | View |
| Nov 13, 2017 | David J Vergo | PRESIDENT, SAFETY-KLEEN | -1.10K | $54.00 | -$59.24K | SELL | -4.34% | 24.16K | Nov 09 | View |
| Sep 29, 2017 | Brian P Weber | EVP (CHESI) | -490.00 | $56.18 | -$27.53K | SELL | -0.82% | 59.41K | Sep 29 | View |
| Sep 11, 2017 | Eric J Dugas | SVP FINANCE AND CAO | -933.00 | $54.67 | -$51.01K | SELL | -5.94% | 14.77K | Sep 08 | View |
| Aug 25, 2017 | Eric W Gerstenberg | CHIEF OPERATING OFFICER | -4.67K | $50.42 | -$235.31K | SELL | -4.83% | 91.95K | Aug 24 | View |
| Jun 30, 2017 | Brian P Weber | EVP (CHESI) | -1.95K | $54.06 | -$105.15K | SELL | -3.63% | 51.66K | Jun 29 | View |
| Jun 02, 2017 | Michael J Twohig | EVP (CHESI) | -4.33K | $59.25 | -$256.73K | SELL | -13.93% | 26.78K | Jun 01 - Jun 02 | View |
| Jun 01, 2017 | David M Parry | PRES (INDUS.AND FIELD SERV) | -4.40K | $58.96 | -$259.54K | SELL | -9.92% | 39.95K | Jun 01 | View |
| May 08, 2017 | Andrea Robertson | DIRECTOR | -1.03K | $60.62 | -$62.68K | SELL | -6.82% | 14.14K | May 05 | View |
| Apr 03, 2017 | Brian P Weber | EVP (CHESI) | 8.86K | $50.03 | -$56.84K | GRANT | 20.99% | 51.09K | Mar 30 - Apr 01 | View |
| Mar 08, 2017 | Alan S McKim | CHRMN.OF BD AND CEO | -105.53K | $56.75 | -$5.99M | SELL | -2.45% | 4.21M | Mar 06 - Mar 07 | View |
| Mar 06, 2017 | Alan S McKim | CHRMN.OF BD AND CEO | -94.47K | $57.22 | -$5.41M | SELL | -2.14% | 4.31M | Mar 02 - Mar 03 | View |
| Mar 03, 2017 | Mark G Bouldin | EVP/SK | -387.00 | $58.25 | -$22.54K | SELL | -2.06% | 18.40K | Mar 02 - Mar 03 | View |
| Mar 03, 2017 | Michael Battles | EVP AND CFO | -3.16K | $57.95 | -$182.89K | SELL | -9.03% | 31.79K | Mar 02 | View |
| Mar 02, 2017 | Eric J Dugas | VP, CORP. CONTR AND CAO | -809.00 | $58.45 | -$47.29K | SELL | -6.50% | 11.63K | Mar 01 | View |
| Feb 28, 2017 | Andrea Robertson | DIRECTOR | 0.00 | $39.76 | -$67.01K | SELL-OPTIONS | 0.00% | 15.17K | Feb 24 | View |
| Dec 28, 2016 | Rod Marlin | DIRECTOR | -3.39K | $56.21 | -$190.78K | SELL | -7.28% | 43.25K | Dec 28 | View |
| Dec 28, 2016 | Brian P Weber | EVP (CHESI) | -712.00 | $56.30 | -$40.09K | SELL | -1.52% | 46.19K | Dec 28 | View |
| Dec 22, 2016 | Alan S McKim | CHRMN.OF BD AND CEO | -20.00K | $57.82 | -$1.16M | SELL | -0.44% | 4.55M | Dec 21 | View |
| Dec 19, 2016 | Marvin G Lefebvre | EVP (CHI SUB) | -3.82K | $57.29 | -$218.81K | SELL | -2.94% | 126.07K | Dec 15 | View |
| Dec 15, 2016 | Michael J Twohig | EVP (CHESI) | -2.15K | $56.59 | -$121.89K | SELL | -6.98% | 28.73K | Dec 15 | View |
| Dec 12, 2016 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | -6.02K | $56.00 | -$336.90K | SELL | -10.72% | 50.12K | Dec 12 | View |
| Dec 12, 2016 | Eric W Gerstenberg | CHIEF OPERATING OFFICER | -7.50K | $55.42 | -$415.62K | SELL | -8.24% | 83.53K | Dec 09 | View |
| Dec 09, 2016 | Thomas J Shields | DIRECTOR | 0.00 | $43.78 | -$256.56K | SELL-OPTIONS | 0.00% | 16.59K | Dec 08 | View |
| Dec 08, 2016 | Marvin G Lefebvre | EVP (CHI SUB) | -2.00K | $54.50 | -$109.00K | SELL | -1.52% | 129.89K | Dec 07 | View |
| Dec 07, 2016 | Marvin G Lefebvre | EVP (CHI SUB) | -2.08K | $54.10 | -$112.74K | SELL | -2.15% | 94.91K | Dec 05 | View |
| Dec 02, 2016 | Marvin G Lefebvre | EVP (CHI SUB) | -10.00K | $52.20 | -$522.00K | SELL | -9.35% | 96.99K | Dec 01 | View |
| Nov 04, 2016 | Michael Battles | EVP AND CFO | 1.00K | $44.15 | $44.15K | BUY | 2.84% | 36.17K | Nov 04 | View |
| Sep 28, 2016 | Brian P Weber | EVP (CHESI) | -773.00 | $46.58 | -$36.00K | SELL | -1.62% | 47.05K | Sep 28 | View |
| Sep 01, 2016 | David M Parry | PRES (INDUS.AND FIELD SERV) | -4.06K | $47.37 | -$192.32K | SELL | -8.22% | 45.34K | Aug 31 | View |
| Aug 08, 2016 | James M Rutledge | VICE CHMN, PRES. | -16.00K | $50.74 | -$811.88K | SELL | -11.12% | 127.94K | Aug 05 | View |
| Aug 08, 2016 | Andrea Robertson | DIRECTOR | -1.61K | $36.93 | -$137.44K | SELL | -9.58% | 15.17K | Aug 04 | View |
| Jun 29, 2016 | Brian P Weber | EVP (CHESI) | -920.00 | $50.22 | -$46.20K | SELL | -1.89% | 47.83K | Jun 28 | View |
| Jun 08, 2016 | Daniel J. McCarthy | DIRECTOR | 3.36K | $38.11 | -$9.84K | SELL-OPTIONS | 12.25% | 30.77K | Jun 06 | View |
| May 10, 2016 | Mark G Bouldin | EVP/SK | -367.00 | $47.50 | -$17.43K | SELL | -2.35% | 15.25K | May 10 | View |
| Apr 01, 2016 | Marvin G Lefebvre | EVP (CHI SUB) | 2.43K | $49.64 | -$127.38K | GRANT | 2.99% | 83.93K | Mar 30 - Apr 01 | View |
| Mar 29, 2016 | Michael J Twohig | EVP (CHESI) | -2.00K | $48.50 | -$97.00K | SELL | -8.44% | 21.71K | Mar 29 | View |
| Mar 29, 2016 | David M Parry | PRES (INDUS.AND FIELD SERV) | -7.08K | $47.96 | -$339.32K | SELL | -19.00% | 30.17K | Mar 28 | View |
| Mar 24, 2016 | Brian P Weber | EVP (CHESI) | -899.00 | $47.54 | -$42.74K | SELL | -2.86% | 30.58K | Mar 23 | View |
| Mar 03, 2016 | Marvin G Lefebvre | EVP (CHI SUB) | -7.50K | $44.08 | -$330.60K | SELL | -8.39% | 81.93K | Mar 02 | View |
| Dec 03, 2015 | Eric R. Lindgren | EVP/CIO (CHESI) | -1.01K | $42.68 | -$43.23K | SELL | -7.69% | 12.15K | Dec 03 | View |
| Sep 11, 2015 | Eric W Gerstenberg | CHIEF OPERATING OFFICER | -16.49K | $49.19 | -$811.29K | SELL | -18.39% | 73.19K | Sep 09 | View |
| Jun 11, 2015 | Rod Marlin | DIRECTOR | -99.80K | $43.01 | -$4.29M | SELL | -99.11% | 896.00 | Jun 11 | View |
| Jun 04, 2015 | David M Parry | PRES (INDUS.AND FIELD SERV) | -5.04K | $55.72 | -$281.05K | SELL | -12.61% | 34.94K | Jun 02 | View |
| May 28, 2015 | Thomas J Shields | DIRECTOR | -5.00K | $56.93 | -$284.67K | SELL | -28.42% | 12.59K | May 27 | View |
| May 14, 2015 | John T Preston | DIRECTOR | -4.52K | $56.06 | -$253.54K | SELL | -29.19% | 10.97K | May 13 | View |
| Mar 31, 2015 | Brian P Weber | EVP (CHESI) | -1.37K | $57.03 | -$77.90K | SELL | -4.55% | 28.68K | Mar 30 | View |
| Mar 09, 2015 | Michael Battles | SVP & CAO | -1.01K | $56.63 | -$57.25K | SELL | -12.42% | 7.13K | Mar 06 | View |
| Mar 06, 2015 | Marvin G Lefebvre | EVP (CHI SUB) | -10.00K | $56.55 | -$565.50K | SELL | -8.20% | 111.99K | Mar 02 | View |
| Feb 03, 2015 | Curt Knapp | EVP (SAFETY-KLEEN) | -12.31K | $0.00 | $0.00 | SELL | -79.58% | 3.16K | Jan 31 | View |
| Dec 10, 2014 | Alan S McKim | CHRMN. BD., PRES.AND CEO | 25.00K | $46.60 | $1.17M | BUY | 0.55% | 4.60M | Dec 09 | View |
| Dec 03, 2014 | Rod Marlin | DIRECTOR | -20.00K | $45.40 | -$908.00K | SELL | -75.84% | 6.37K | Dec 02 | View |
| Oct 27, 2014 | David Eckelbarger | EVP (SAFETY-KLEEN) | -15.86K | $0.00 | $0.00 | SELL | -85.69% | 2.65K | Oct 24 | View |
| Aug 14, 2014 | Deirdre Evens | EXEC VP (CHESI SUBSIDIARY) | -1.81K | $58.79 | -$106.23K | SELL | -5.29% | 32.34K | Aug 14 | View |
| Aug 08, 2014 | Andrea Robertson | DIRECTOR | -1.58K | $58.14 | -$92.04K | SELL | -11.02% | 12.78K | Aug 08 | View |
| Jun 24, 2014 | John F Kaslow | DIRECTOR | -1.53K | $63.34 | -$97.16K | SELL | -12.97% | 10.30K | Jun 23 | View |
| Jun 18, 2014 | David M Parry | PRES (INDUS.AND FIELD SERV) | 3.62K | $62.14 | -$252.16K | GRANT | 8.39% | 46.72K | Jun 18 | View |
| Jun 11, 2014 | Thomas J Shields | DIRECTOR | -5.25K | $63.03 | -$330.79K | SELL | -24.72% | 15.98K | Jun 10 | View |
| Feb 11, 2014 | Michael Battles | SVP & CAO | -2.00K | $59.30 | -$118.60K | SELL | -23.37% | 6.56K | Dec 26 | View |
| Dec 24, 2013 | Marvin G Lefebvre | EVP (CHI SUB) | -24.86K | $57.67 | -$1.43M | SELL | -47.11% | 27.90K | Dec 23 | View |
| Nov 14, 2013 | Alan S McKim | CHRMN. BD., PRES.AND CEO | -100.00K | $55.33 | -$5.53M | SELL | -2.13% | 4.60M | Nov 12 - Nov 13 | View |
| Oct 02, 2013 | Eric W Gerstenberg | PRES. (ENVIRO. SERVICES SUBS) | -1.00K | $58.92 | -$58.92K | SELL | -2.52% | 38.60K | Oct 01 | View |
| Aug 27, 2013 | Daniel J. McCarthy | DIRECTOR | -1.00K | $56.49 | -$56.49K | SELL | -3.21% | 30.17K | Aug 23 | View |
| Apr 04, 2013 | Rod Marlin | DIRECTOR | -15.00K | $57.28 | -$859.26K | SELL | -15.75% | 80.25K | Apr 02 - Apr 03 | View |
| Mar 29, 2013 | Steven Fusco | EVP CIO (CHESI) | -440.00 | $58.27 | -$25.64K | SELL | -4.70% | 8.92K | Mar 28 | View |
| Feb 21, 2013 | Jerry E. Correll | EXEC. VICE PRESIDENT (CHESI) | -16.00K | $51.79 | -$828.64K | SELL | -60.32% | 10.52K | Feb 21 | View |
| Dec 19, 2012 | Phillip G Retallick | SENIOR VICE PRESIDENT CHESI | -1.15K | $56.00 | -$64.23K | SELL | -39.90% | 1.73K | Dec 15 - Dec 17 | View |
| Nov 30, 2012 | Andrea Robertson | DIRECTOR | -500.00 | $57.33 | -$28.66K | SELL | -4.28% | 11.17K | Nov 29 | View |
| Nov 14, 2012 | David M Parry | PRES (ENERGY & INDUST. SUBS) | -5.17K | $56.15 | -$290.52K | SELL | -15.98% | 27.20K | Nov 14 | View |
| Oct 01, 2012 | Marvin G Lefebvre | EVP (CHI SUB) | -10.00K | $48.16 | -$481.60K | SELL | -7.19% | 129.03K | Sep 28 | View |
| Sep 14, 2012 | Thomas Seeger | FORMER CHESI EVP | -4.16K | $55.52 | -$20.23K | SELL | -100.00% | 0.00 | Jun 22 - Sep 14 | View |
| Aug 28, 2012 | Michael J Twohig | EVP (CHESI) | 0.00 | $30.77 | -$505.02K | SELL-OPTIONS | 0.00% | 18.01K | Aug 27 | View |
| Aug 23, 2012 | Michael J Twohig | EVP (CHESI) | 0.00 | $31.26 | -$274.90K | SELL-OPTIONS | 0.00% | 18.01K | Aug 22 | View |
| Aug 22, 2012 | Michael J Twohig | EVP (CHESI) | 0.00 | $31.56 | -$127.91K | SELL-OPTIONS | 0.00% | 18.01K | Aug 21 | View |
| Aug 10, 2012 | Eric W Gerstenberg | PRES. (ENVIRO. SERVICES SUBS) | -4.00K | $55.00 | -$220.00K | SELL | -18.29% | 17.88K | Aug 09 | View |
| May 29, 2012 | Eric W Gerstenberg | PRES. (ENVIRO. SERVICES SUBS) | -3.00K | $61.29 | -$183.87K | SELL | -11.87% | 22.27K | May 21 | View |
| May 22, 2012 | Andrea Robertson | DIRECTOR | -1.00K | $62.00 | -$62.00K | SELL | -7.89% | 11.67K | May 21 | View |
| Apr 05, 2012 | Brian P Weber | EVP (CHESI) | -4.50K | $66.16 | -$297.98K | SELL | -19.54% | 18.55K | Apr 04 | View |
| Mar 28, 2012 | Rod Marlin | DIRECTOR | -20.00K | $69.59 | -$1.39M | SELL | -67.91% | 9.45K | Mar 26 - Mar 27 | View |
| Mar 19, 2012 | Alan S McKim | CHRMN. BD., PRES.AND CEO | -86.00K | $69.01 | -$3.45M | SELL | -1.77% | 4.77M | Mar 14 - Mar 15 | View |
| Dec 19, 2011 | Phillip G Retallick | SENIOR VICE PRESIDENT CHESI | -2.57K | $60.42 | -$155.16K | SELL | -65.96% | 1.32K | Dec 19 | View |
| Nov 09, 2011 | John F Kaslow | DIRECTOR | 0.00 | $45.35 | -$147.12K | SELL-OPTIONS | 0.00% | 9.11K | Nov 08 | View |
| Nov 09, 2011 | John F Kaslow | DIRECTOR | 0.00 | $45.35 | -$147.12K | SELL-OPTIONS | 0.00% | 9.11K | Nov 08 | View |
| Nov 08, 2011 | James M Rutledge | EVP., TREAS. & CFO | -1.80K | $56.50 | -$101.70K | SELL | -2.60% | 67.33K | Nov 07 | View |
| Sep 27, 2011 | Marvin Lefebvre | EVP (CHI SUB) | -10.00K | $51.24 | -$512.38K | SELL | -6.71% | 139.03K | Sep 23 | View |
| Sep 21, 2011 | Michael J Twohig | EVP (CHESI) | 0.00 | $31.57 | -$75.24K | SELL-OPTIONS | 0.00% | 8.42K | Sep 20 | View |
| Sep 15, 2011 | Phillip G Retallick | SENIOR VICE PRESIDENT CHESI | -1.10K | $56.00 | -$61.60K | SELL | -35.00% | 2.04K | Sep 14 | View |
| Sep 15, 2011 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -50.00K | $54.94 | -$2.75M | SELL | -2.03% | 2.41M | Sep 14 | View |
| Sep 14, 2011 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -25.00K | $54.31 | -$1.36M | SELL | -1.01% | 2.46M | Sep 13 | View |
| Aug 30, 2011 | Daniel J. McCarthy | DIRECTOR | 0.00 | $38.80 | -$126.32K | SELL-OPTIONS | 0.00% | 29.50K | Aug 29 | View |
| Aug 26, 2011 | John F Kaslow | DIRECTOR | 0.00 | $42.66 | -$114.78K | SELL-OPTIONS | 0.00% | 9.11K | Aug 25 | View |
| Jul 07, 2011 | Eric W Gerstenberg | PRES. (ENVIRO. SERVICES SUBS) | -1.20K | $107.06 | -$128.47K | SELL | -10.17% | 10.60K | Jul 06 | View |
| Jul 07, 2011 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | -5.00K | $105.02 | -$525.10K | SELL | -20.10% | 19.87K | Jul 05 | View |
| Jul 01, 2011 | John P DeVillars | DIRECTOR | 500.00 | $74.61 | -$291.54K | SELL-OPTIONS | 6.90% | 7.75K | Jun 30 | View |
| Jun 23, 2011 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -23.27K | $97.28 | -$2.26M | SELL | -0.93% | 2.49M | Jun 21 - Jun 22 | View |
| Jun 21, 2011 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -20.60K | $96.00 | -$1.98M | SELL | -0.81% | 2.51M | Jun 17 | View |
| Jun 16, 2011 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -6.13K | $97.02 | -$594.64K | SELL | -0.24% | 2.53M | Jun 14 | View |
| Jun 14, 2011 | John F Kaslow | DIRECTOR | 0.00 | $74.85 | -$60.54K | SELL-OPTIONS | 0.00% | 4.55K | Jun 13 | View |
| Jun 02, 2011 | Rod Marlin | DIRECTOR | -10.00K | $101.21 | -$1.01M | SELL | -40.90% | 14.45K | Jun 01 | View |
| May 16, 2011 | James M Rutledge | EVP., TREAS. & CFO | -900.00 | $103.06 | -$92.75K | SELL | -2.74% | 31.91K | May 12 | View |
| May 13, 2011 | John P DeVillars | DIRECTOR | -2.00K | $98.11 | -$196.22K | SELL | -23.58% | 6.48K | Apr 19 | View |
| May 13, 2011 | Andrea Robertson | DIRECTOR | -483.00 | $102.14 | -$49.33K | SELL | -7.73% | 5.77K | May 11 | View |
| May 09, 2011 | Jerry E. Correll | SR VICE PRESIDENT (CHESI) | -1.00K | $101.60 | -$101.60K | SELL | -21.67% | 3.62K | May 06 | View |
| May 06, 2011 | Phillip G Retallick | SENIOR VICE PRESIDENT CHESI | -552.00 | $102.81 | -$56.75K | SELL | -21.28% | 2.04K | May 06 | View |
| Apr 18, 2011 | William F. O'Connor | SVP RISK MANAGEMENT CHESI | -620.00 | $98.09 | -$60.82K | SELL | -24.64% | 1.90K | Apr 14 | View |
| Apr 13, 2011 | Michael R McDonald | SR. VP/GENERAL COUNSEL(CHESI) | -1.00K | $101.23 | -$101.23K | SELL | -29.56% | 2.38K | Apr 11 | View |
| Apr 13, 2011 | Andrea Robertson | DIRECTOR | 0.00 | $73.86 | -$222.84K | SELL-OPTIONS | 0.00% | 5.48K | Apr 11 | View |
| Apr 13, 2011 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -10.00K | $100.86 | -$1.01M | SELL | -0.39% | 2.54M | Apr 11 - Apr 12 | View |
| Apr 12, 2011 | Marvin G LeFebvre | EVP (CHI SUB) | -5.21K | $105.33 | -$548.78K | SELL | -8.34% | 57.28K | Apr 08 | View |
| Apr 11, 2011 | John T Preston | DIRECTOR | 0.00 | $69.69 | -$419.04K | SELL-OPTIONS | 0.00% | 5.58K | Apr 07 | View |
| Jan 18, 2011 | Marvin G Lefebvre | EVP (CHI SUB) | -8.00K | $74.19 | -$593.51K | SELL | -12.03% | 58.49K | Nov 05 - Dec 02 | View |
| Dec 17, 2010 | Phillip G Retallick | SENIOR VICE PRESIDENT CHESI | -272.00 | $79.94 | -$21.74K | SELL | -8.29% | 3.01K | Dec 15 - Dec 17 | View |
| Dec 17, 2010 | William F. O'Connor | SVP RISK MANAGEMENT CHESI | -35.00 | $45.95 | -$167.62K | SELL | -1.36% | 2.53K | Dec 15 | View |
| Dec 07, 2010 | Michael J Twohig | EVP (CHESI) | 0.00 | $44.17 | -$262.60K | SELL-OPTIONS | 0.00% | 7.11K | Dec 06 | View |
| Nov 12, 2010 | John R Beals | V.P. & CORP. CONTR | -430.93 | $73.49 | -$31.67K | SELL | -6.58% | 6.12K | Nov 10 | View |
| Nov 09, 2010 | James M Rutledge | EVP & CHIEF FINANCIAL OFFICER | -1.30K | $73.40 | -$95.42K | SELL | -3.53% | 35.55K | Nov 08 | View |
| Nov 09, 2010 | Brian P Weber | EVP (CHESI) | 0.00 | $41.65 | -$386.96K | SELL-OPTIONS | 0.00% | 8.68K | Nov 05 | View |
| Nov 05, 2010 | David M Parry | EVP CHESI | 0.00 | $43.02 | -$510.76K | SELL-OPTIONS | 0.00% | 11.16K | Nov 04 | View |
| Sep 27, 2010 | Jerry E. Correll | SR VICE PRESIDENT (CHESI) | 0.00 | $40.49 | -$440.16K | SELL-OPTIONS | 0.00% | 5.31K | Sep 24 | View |
| Sep 07, 2010 | Eric W Gerstenberg | EXEC. VICE PRESIDENT (CHESI) | -1.51K | $63.01 | -$95.08K | SELL | -15.61% | 8.16K | Sep 03 | View |
| Aug 17, 2010 | Phillip G Retallick | SENIOR VICE PRESIDENT CHESI | -171.00 | $61.15 | -$10.46K | SELL | -4.95% | 3.28K | Aug 16 | View |
| Aug 12, 2010 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -33.00K | $60.98 | -$2.01M | SELL | -1.24% | 2.62M | Aug 11 | View |
| Aug 11, 2010 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -67.00K | $63.03 | -$4.22M | SELL | -2.46% | 2.65M | Aug 09 - Aug 10 | View |
| Aug 10, 2010 | Phillip Retallick | SENIOR VICE PRESIDENT CHESI | -268.00 | $63.45 | -$17.00K | SELL | -7.20% | 3.45K | Aug 06 | View |
| May 12, 2010 | Thomas J Shields | DIRECTOR | 0.00 | $40.61 | -$259.62K | SELL-OPTIONS | 0.00% | 8.49K | May 10 | View |
| May 10, 2010 | George L Curtis | EXEC. VICE PRESIDENT (CHESI) | 0.00 | $36.61 | -$236.30K | SELL-OPTIONS | 0.00% | 23.69K | May 07 | View |
| Nov 20, 2009 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -11.10K | $55.28 | -$613.61K | SELL | -0.41% | 2.73M | Nov 18 | View |
| Nov 18, 2009 | Alan S McKim | CHAIRMAN THE BOARD AND CEO | -73.50K | $56.57 | -$4.16M | SELL | -2.62% | 2.74M | Nov 16 - Nov 17 | View |
| Oct 15, 2009 | Jerry E. Correll | SR VICE PRESIDENT (CHESI) | -600.00 | $60.00 | -$36.00K | SELL | -10.44% | 5.15K | Oct 14 | View |
| Oct 06, 2009 | Eric W Gerstenberg | EXEC. VICE PRESIDENT (CHESI) | -500.00 | $53.89 | -$26.95K | SELL | -5.81% | 8.10K | Oct 02 | View |
| May 15, 2009 | John P DeVillars | DIRECTOR | -3.00K | $18.84 | -$153.33K | SELL | -30.30% | 6.90K | May 13 | View |
