CLH Insider Transactions
506 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
CLH insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2026-08-14 | Sale | 2,500 | $321.34 |
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| Robertson Andrea | Director | 2026-08-03 | Sale | 789 | $314.01 |
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| States Lauren | Director | 2026-05-26 | Sale | 789.0 | $286.19 |
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| Polito Karyn | Director | 2026-05-11 | Purchase | 460.0 | $295.13 |
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| GERSTENBERG ERIC W | CO-CEO | 2026-03-18 | Sale | 1,000 | $293 |
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| Reed Marcy L. | Director | 2026-03-18 | Sale | 836.0 | $287.94 |
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| GERSTENBERG ERIC W | CO-CEO | 2026-03-18 | Sale | 1,000.0 | $293.0 |
|---|
| Weber Brian P | EVP (CHESI) | 2026-03-17 | Sale | 4,683.0 | $293.39 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2026-03-04 | Sale | 100,000.0 | $292.65 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2026-02-23 | Sale | 2,500 | $279.86 |
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| GERSTENBERG ERIC W | CO-CEO | 2026-02-23 | Sale | 2,500.0 | $279.86 |
|---|
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | 2026-02-20 | Sale | 2,788 | $281.31 |
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| Gabriel Sharon M. | EVP/CIO (CHESI) | 2026-02-20 | Sale | 3,540.0 | $282.07 |
|---|
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | 2026-02-20 | Sale | 2,788.0 | $281.31 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2026-02-19 | Sale | 100,000.0 | $281.14 |
|---|
| Welch John R. | Director | 2026-02-19 | Sale | 750.0 | $273.07 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2025-12-16 | Sale | 601.0 | $240.9 |
|---|
| Battles Michael Louis | CO-CEO | 2025-08-01 | Purchase | 2,000.0 | $233.5 |
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| Robertson Andrea | Director | 2025-07-31 | Sale | 836.0 | $233.64 |
|---|
| Weber Brian P | EVP (CHESI) | 2025-06-13 | Sale | 3,035.0 | $227.17 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2025-06-06 | Sale | 8,076.0 | $225.23 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2025-06-05 | Sale | 58,156.0 | $223.8 |
|---|
| Quirk Alison A. | Director | 2025-06-05 | Sale | 893.0 | $223.69 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2025-06-04 | Sale | 41,844.0 | $225.4 |
|---|
| Welch John R. | Director | 2025-05-28 | Sale | 1,250.0 | $228.51 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2025-05-27 | Sale | 1,022.0 | $228.49 |
|---|
| States Lauren | Director | 2025-05-22 | Sale | 836.0 | $226.17 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2025-03-10 | Sale | 2,725.0 | $190.44 |
|---|
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | 2025-03-10 | Purchase | 1,050.0 | $191.38 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2025-03-03 | Sale | 2,999.0 | $212.02 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2025-03-03 | Sale | 50,000.0 | $210.18 |
|---|
| States Lauren | Director | 2025-02-18 | Sale | 308.0 | $228.79 |
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| States Lauren | Director | 2025-01-15 | Sale | 308.0 | $239.04 |
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| States Lauren | Director | 2024-12-16 | Sale | 308.0 | $245.06 |
|---|
| Weber Brian P | EVP (CHESI) | 2024-11-27 | Sale | 861.0 | $261.31 |
|---|
| States Lauren | Director | 2024-11-15 | Sale | 308.0 | $249.78 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2024-11-15 | Sale | 6,051.0 | $250.42 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2024-11-05 | Sale | 610.0 | $240.14 |
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| States Lauren | Director | 2024-10-15 | Sale | 308.0 | $260.74 |
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| States Lauren | Director | 2024-09-16 | Sale | 309.0 | $244.09 |
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| States Lauren | Director | 2024-09-16 | Sale | 309.0 | $244.09 |
|---|
| Battles Michael Louis | CO-CEO | 2024-09-16 | Sale | 10,000.0 | $245.74 |
|---|
| Robertson Andrea | Director | 2024-08-01 | Sale | 1,148.0 | $238.9 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2024-06-11 | Sale | 50,000.0 | $215.51 |
|---|
| States Lauren | Director | 2024-05-23 | Sale | 1,148.0 | $218.14 |
|---|
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | 2024-05-03 | Sale | 6,200.0 | $208.74 |
|---|
| Weber Brian P | EVP (CHESI) | 2024-03-27 | Sale | 7,996.0 | $199.07 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2024-03-15 | Sale | 15,276.0 | $187.71 |
|---|
| PRESTON JOHN T | Director | 2024-03-14 | Sale | 1,913.0 | $188.36 |
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| MCKIM ALAN S | EXEC CHAIR, CTO. | 2024-02-27 | Sale | 35,000.0 | $182.22 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2024-02-26 | Sale | 35,000.0 | $184.06 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2023-12-20 | Sale | 17,453.0 | $178.37 |
|---|
| Harrison Robert W. | EVP, EHS | 2023-12-01 | Sale | 122.0 | $166.86 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2023-11-22 | Sale | 8,000.0 | $164.82 |
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| MCKIM ALAN S | EXEC CHAIR, CTO. | 2023-11-17 | Sale | 46,611.0 | $164.6 |
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| MCKIM ALAN S | EXEC CHAIR, CTO. | 2023-11-16 | Sale | 28,389.0 | $164.5 |
|---|
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | 2023-08-29 | Sale | 3,500.0 | $171.0 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2023-08-25 | Sale | 1,984.0 | $171.03 |
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| CURTIS GEORGE L | EXEC. VICE PRESIDENT (CHESI) | 2023-08-23 | Sale | 10,303.0 | $171.54 |
|---|
| PRESTON JOHN T | Director | 2023-08-16 | Sale | 2,095.0 | $173.68 |
|---|
| Robertson Andrea | Director | 2023-08-08 | Sale | 1,200.0 | $169.08 |
|---|
| Battles Michael Louis | CO-CEO | 2023-08-04 | Sale | 10,000.0 | $171.0 |
|---|
| Gabriel Sharon M. | EVP/CIO (CHESI) | 2023-07-03 | Sale | 557.0 | $164.43 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2023-07-03 | Sale | 825.0 | $164.43 |
|---|
| GERSTENBERG ERIC W | CO-CEO | 2023-07-03 | Sale | 9,725.0 | $164.43 |
|---|
| Weber Brian P | EVP (CHESI) | 2023-07-03 | Sale | 1,966.0 | $164.43 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2023-07-03 | Sale | 1,231.0 | $164.43 |
|---|
| Dugas Eric J. | SVP FINANCE, CONTROLLER & CAO | 2023-07-03 | Sale | 898.0 | $164.43 |
|---|
| CURTIS GEORGE L | EXEC. VICE PRESIDENT (CHESI) | 2023-07-03 | Sale | 717.0 | $164.43 |
|---|
| Battles Michael Louis | CO-CEO | 2023-07-03 | Sale | 6,467.0 | $164.43 |
|---|
| Gabriel Sharon M. | EVP/CIO (CHESI) | 2023-06-09 | Sale | 3,235.0 | $155.71 |
|---|
| BANUCCI EUGENE G | Director | 2023-06-09 | Sale | 5,020.0 | $156.09 |
|---|
| Welch John R. | Director | 2023-06-02 | Sale | 1,000.0 | $150.43 |
|---|
| BANUCCI EUGENE G | Director | 2023-05-26 | Sale | 10,000.0 | $144.59 |
|---|
| Weber Brian P | EVP (CHESI) | 2023-05-25 | Sale | 3,131.0 | $142.63 |
|---|
| McDuffie Melkeya | EVP, HUMAN RESOURCES OFFICER | 2023-05-24 | Sale | 714.0 | $144.29 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2023-05-16 | Sale | 53,800.0 | $139.02 |
|---|
| MCKIM ALAN S | EXEC CHAIR, CTO. | 2023-05-15 | Sale | 16,200.0 | $139.6 |
|---|
| States Lauren | Director | 2023-05-04 | Sale | 510.0 | $136.13 |
|---|
| Gabriel Sharon M. | EVP/CIO (CHESI) | 2023-04-01 | Sale | 196.0 | $142.56 |
|---|
| Dugas Eric J. | SVP FINANCE, CONTROLLER & CAO | 2023-04-01 | Sale | 346.0 | $142.56 |
|---|
| TWOHIG MICHAEL J | EVP (CHESI) | 2023-03-27 | Sale | 2,000.0 | $134.42 |
|---|
| Battles Michael Louis | EVP AND CFO | 2023-03-15 | Sale | 644.0 | $133.07 |
|---|
| CURTIS GEORGE L | EXEC. VICE PRESIDENT (CHESI) | 2023-03-15 | Sale | 221.0 | $133.07 |
|---|
| Dugas Eric J. | SVP FINANCE, CONTROLLER & CAO | 2023-03-15 | Sale | 305.0 | $133.07 |
|---|
| Gabriel Sharon M. | EVP/CIO (CHESI) | 2023-03-15 | Sale | 274.0 | $133.07 |
|---|
| GERSTENBERG ERIC W | CHIEF OPERATING OFFICER(CHESI) | 2023-03-15 | Sale | 488.0 | $133.07 |
|---|
| McDuffie Melkeya | EVP, HUMAN RESOURCES OFFICER | 2023-03-15 | Sale | 231.0 | $133.07 |
|---|
| MCKIM ALAN S | CHRMN.OF BD, PRES. & CEO | 2023-03-15 | Sale | 1,161.0 | $133.07 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2023-03-15 | Sale | 1,363.0 | $133.07 |
|---|
| TWOHIG MICHAEL J | EVP (CHESI) | 2023-03-15 | Sale | 290.0 | $133.07 |
|---|
| Weber Brian P | EVP (CHESI) | 2023-03-15 | Sale | 527.0 | $133.07 |
|---|
| Gabriel Sharon M. | EVP/CIO (CHESI) | 2023-03-09 | Sale | 3,810.0 | $138.92 |
|---|
| BANUCCI EUGENE G | Director | 2023-03-07 | Sale | 5,000.0 | $133.97 |
|---|
| PRESTON JOHN T | Director | 2023-03-02 | Sale | 3,750.0 | $134.9 |
|---|
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 2022-12-29 | Sale | 3,327.0 | $113.71 |
|---|
| GERSTENBERG ERIC W | CHIEF OPERATING OFFICER(CHESI) | 2022-12-21 | Sale | 16,409.0 | $116.02 |
|---|
| Dugas Eric J. | SVP FINANCE, CONTROLLER & CAO | 2022-12-13 | Sale | 3,274.0 | $122.39 |
|---|
| MCKIM ALAN S | CHRMN.OF BD, PRES. & CEO | 2022-11-28 | Sale | 40,000.0 | $120.45 |
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| Weber Brian P | EVP (CHESI) | 2022-09-09 | Sale | 2,003.0 | $122.42 |
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