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Company profile

Clean Harbors Inc Insider Trading

CLH

Every SEC Form 4 insider trading filing for Clean Harbors Inc (CLH) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
NYSE
Sector
Hazardous Waste Management
CIK
0000822818
Filings
271
Insiders
24
Last filing
2026-08-14
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

No insider transactions in the last 30 days. The most recent was on August 14, 2026, when Eric W Gerstenberg sold 2,500 shares. 271 filings from 24 insiders are on record below.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. Clean Harbors Inc insiders were net sellers in every quarter shown.

PurchasesSales
Q4 23Q1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25$67.5MQ1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $67.5M.

90 day insight

Over the last 90 days, Clean Harbors Inc insiders sold $3.4M across 12 transactions with no open-market purchases.

  • Most active insider: Eric W Gerstenberg with 2 transactions totaling $967K.
  • Largest single sale: $803K by Eric W Gerstenberg on Aug 14, 2026.

Activity skews bearish — sales outpace buys.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValueReturn
Aug 14, 2026Eric W GerstenbergCLH
Sale
2,500$321.34$803K-3.7% 1w
Aug 3, 2026Andrea RobertsonCLH
Sale
789$314.01$248K+1.0% 1m
Jul 17, 2026Alan S McKimCLH
Tax Withholding
1,265$310.58$393K+3.2% 1m
Jul 1, 2026Eric W GerstenbergCLH
Tax Withholding
564$290.74$164K+0.4% 1m
Jul 1, 2026Sharon M. GabrielCLH
Tax Withholding
359$290.74$104K+5.4% 1m

45 more transactions hidden

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Top insiders

By total value filed.

Alan S McKimEXEC CHAIR, CTO.4 filings−$30.4M
Eric W GerstenbergCO-CEO5 filings−$2.2M
Brian P WeberEVP (CHESI)3 filings−$1.9M
Eric J. DugasEVP CHIEF FINANCIAL OFFICER3 filings−$1.1M
Michael Louis BattlesCO-CEO2 filings−$632K

Institutional Ownership

Top 13F-HR holders of Clean Harbors Inc as of 2026-06-30

↓ decreasing
Total reported AUM
$3.66B
QoQ change
-71.2%
Reporting period
2026-06-30
#1
BlackRock, Inc.
CIK 0002012383
$832.1M
2.8M shares
#2
State Street Corp
CIK 0000093751
$472.6M
1.6M shares
#3
BlackRock, Inc.
CIK 0002012383
$462.6M
1.5M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

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Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

Congressional Trading

Disclosed CLH trades under the STOCK Act

Total trades
13
Purchases
2
Sales
11
April McClain Delaney
Unknown · House · MD
2 buys
10 sells
Robert P. Bresnahan, Jr.
Republican · House · PA
0 buys
1 sell

Sourced from U.S. House Clerk periodic transaction reports (House coverage only). Trade counts reflect disclosed filings only. The STOCK Act allows up to 45 days between a trade and its disclosure, so this reflects recent disclosures, not real-time trading. Full congressional trading API →

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