There have been 50 recent insider transactions recorded for Clean Harbors, Inc. (CLH), including 9 buys and 35 sells. Total insider buying was valued at RSU Award and total insider selling at $38.18M.
Notable insiders with recent activity include Gerstenberg Eric W, Reed Marcy L., Weber Brian P. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — CLH
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-18 |
Gerstenberg Eric W |
Co-CEO |
Informative Sell |
1,000 |
$293.00 |
$293K |
38,877 |
| 2026-03-18 |
Reed Marcy L. |
Director |
Informative Sell |
836 |
$287.94 |
$240.72K |
5,081 |
| 2026-03-17 |
Weber Brian P |
EVP (chesi) |
Informative Sell |
4,683 |
$293.39 |
$1.37M |
48,728 |
| 2026-03-13 |
Mckim Alan S |
Exec Chair, CTO. |
Tax Withholding of RSU |
1,265 |
$288.93 |
$365.5K |
32,762 |
| 2026-03-13 |
Gerstenberg Eric W |
Co-CEO |
Return of Shares |
2,166 |
- |
- |
39,877 |
| 2026-03-13 |
Curtis George L |
Exec. Vice President (chesi) |
Return of Shares |
1,028 |
- |
- |
46,048 |
| 2026-03-13 |
Weber Brian P |
EVP (chesi) |
Return of Shares |
1,869 |
- |
- |
53,411 |
| 2026-03-13 |
Battles Michael Louis |
Co-CEO |
Return of Shares |
2,166 |
- |
- |
95,387 |
| 2026-03-13 |
Dugas Eric J. |
EVP Chief Financial Officer |
Return of Shares |
1,324 |
- |
- |
13,979 |
| 2026-03-13 |
Gabriel Sharon M. |
EVP/cio (chesi) |
Return of Shares |
1,401 |
- |
- |
21,065 |
| 2026-03-13 |
Harrison Robert W. |
EVP, Ehs |
Return of Shares |
368 |
- |
- |
6,648 |
| 2026-03-13 |
Underwood Rebecca |
President & EVP Facilities |
Return of Shares |
1,401 |
- |
- |
18,684 |
| 2026-03-13 |
Geer Charles H. Ii |
EVP, Industrial Services |
Return of Shares |
139 |
- |
- |
10,839 |
| 2026-03-04 |
Mckim Alan S |
Exec Chair, CTO. |
Informative Sell |
100,000 |
$292.65 |
$29.27M |
2,065,368 |
| 2026-02-23 |
Gerstenberg Eric W |
Co-CEO |
Informative Sell |
2,500 |
$279.86 |
$699.65K |
43,020 |
| 2026-02-20 |
Dugas Eric J. |
EVP Chief Financial Officer |
Informative Sell |
2,788 |
$281.31 |
$784.29K |
15,933 |
| 2026-02-20 |
Gabriel Sharon M. |
EVP/cio (chesi) |
Informative Sell |
3,540 |
$282.07 |
$998.53K |
23,193 |
| 2026-02-19 |
Welch John R. |
Director |
Informative Sell |
750 |
$273.07 |
$204.8K |
10,237 |
| 2026-02-19 |
Mckim Alan S |
Exec Chair, CTO. |
Gift (Given) |
10,000 |
- |
- |
2,265,368 |
| 2026-02-02 |
Gerstenberg Eric W |
Co-CEO |
Tax Withholding of RSU |
4,934 |
$259.91 |
$1.28M |
45,520 |
| 2026-02-02 |
Curtis George L |
Exec. Vice President (chesi) |
Tax Withholding of RSU |
249 |
$259.91 |
$64.72K |
47,415 |
| 2026-02-02 |
Weber Brian P |
EVP (chesi) |
Tax Withholding of RSU |
1,394 |
$259.91 |
$362.31K |
52,018 |
| 2026-02-02 |
Battles Michael Louis |
Co-CEO |
Tax Withholding of RSU |
5,205 |
$259.91 |
$1.35M |
77,706 |
| 2026-02-02 |
Dugas Eric J. |
EVP Chief Financial Officer |
Tax Withholding of RSU |
567 |
$259.91 |
$147.37K |
18,721 |
| 2026-02-02 |
Gabriel Sharon M. |
EVP/cio (chesi) |
Tax Withholding of RSU |
508 |
$259.91 |
$132.03K |
26,733 |
| 2026-02-02 |
Harrison Robert W. |
EVP, Ehs |
Tax Withholding of RSU |
184 |
$259.91 |
$47.82K |
5,601 |
| 2026-02-02 |
Underwood Rebecca |
President & EVP Facilities |
Tax Withholding of RSU |
425 |
$259.91 |
$110.46K |
16,859 |
| 2026-02-02 |
Diderich Jeroen |
EVP&president of Sales&service |
Tax Withholding of RSU |
105 |
$259.91 |
$27.29K |
13,667 |
| 2026-02-02 |
Geer Charles H. Ii |
EVP, Industrial Services |
Tax Withholding of RSU |
197 |
$259.91 |
$51.2K |
8,617 |
| 2026-02-01 |
Gerstenberg Eric W |
Co-CEO |
RSU Award |
10,290 |
- |
- |
55,810 |
| 2026-02-01 |
Weber Brian P |
EVP (chesi) |
RSU Award |
3,166 |
- |
- |
55,184 |
| 2026-02-01 |
Battles Michael Louis |
Co-CEO |
RSU Award |
10,290 |
- |
- |
87,996 |
| 2026-02-01 |
Dugas Eric J. |
EVP Chief Financial Officer |
RSU Award |
3,066 |
- |
- |
21,787 |
| 2026-02-01 |
Gabriel Sharon M. |
EVP/cio (chesi) |
RSU Award |
2,073 |
- |
- |
28,806 |
| 2026-02-01 |
Harrison Robert W. |
EVP, Ehs |
RSU Award |
1,003 |
- |
- |
6,604 |
| 2026-02-01 |
Underwood Rebecca |
President & EVP Facilities |
RSU Award |
2,513 |
- |
- |
19,372 |
| 2026-02-01 |
Diderich Jeroen |
EVP&president of Sales&service |
RSU Award |
3,141 |
- |
- |
16,808 |
| 2026-02-01 |
Geer Charles H. Ii |
EVP, Industrial Services |
RSU Award |
1,843 |
- |
- |
10,460 |
| 2026-01-02 |
Gabriel Sharon M. |
EVP/cio (chesi) |
Tax Withholding of RSU |
525 |
$234.48 |
$123.1K |
27,241 |
| 2025-12-17 |
Welch John R. |
Director |
Gift (Given) |
415 |
- |
- |
10,987 |
| 2025-12-16 |
Gerstenberg Eric W |
Co-CEO |
Informative Sell |
601 |
$240.90 |
$144.78K |
50,454 |
| 2025-12-15 |
Harrison Robert W. |
EVP, Ehs |
Tax Withholding of RSU |
16 |
$240.71 |
$3.85K |
5,785 |
| 2025-12-15 |
Underwood Rebecca |
President & EVP Facilities |
Tax Withholding of RSU |
51 |
$240.71 |
$12.28K |
17,284 |
| 2025-12-15 |
Geer Charles H. Ii |
EVP, Industrial Services |
Tax Withholding of RSU |
28 |
$240.71 |
$6.74K |
8,814 |
| 2025-12-09 |
Curtis George L |
Exec. Vice President (chesi) |
Gift (Given) |
1,000 |
- |
- |
47,664 |
| 2025-12-01 |
Harrison Robert W. |
EVP, Ehs |
Tax Withholding of RSU |
122 |
$228.54 |
$27.88K |
5,801 |
| 2025-11-13 |
States Lauren |
Director |
Gift (Given) |
245 |
- |
- |
11,496 |
| 2025-11-01 |
Geer Charles H. Ii |
EVP, Industrial Services |
Tax Withholding of RSU |
294 |
$210.51 |
$61.89K |
8,842 |
| 2025-09-16 |
Mckim Alan S |
Exec Chair, CTO. |
Gift (Given) |
4,283 |
- |
- |
2,342,461 |
| 2025-08-05 |
Robertson Andrea |
Director |
Gift (Given) |
430 |
- |
- |
9,458 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
