LYTIR

Company · CLH

Clean Harbors, Inc.

Name as listed on its exchange; filed with the SEC as CLEAN HARBORS INC.

Nasdaq's symbol directory lists CLH on the New York Stock Exchange as “Clean Harbors, Inc. Common Stock”.

In the 12 months to Nov 8, 2026: insiders bought on 1 occasion ($39K); insiders sold on 5 occasions ($2.8M); 1 filing by holders of 5% or more; 8 congressional trade disclosures; 3 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $39K in total; Insider sales: $2.8M in total.Feb: Insider sales $1.5MMar: Insider sales $293KAug: Insider sales $1.1MOct: Insider purchases $39KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $39KInsider sales below: $2.8M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Eric W. Gerstenberg, CO-CEO sold on 3 days latest Aug 14, 2026 sold $1.8M
  2. Dugas Eric J., EVP CHIEF FINANCIAL OFFICER sold on 1 day latest Feb 20, 2026 sold $784K
  3. Robertson Andrea sold on 1 day latest Aug 3, 2026 sold $248K
  4. Karyn Polito bought on 1 day latest Oct 29, 2026 bought $39K
Every trade (6)
  1. BUYKaryn Polito bought Oct 29, 2026 125 shares filing $39K
  2. SELLEric W. Gerstenberg, CO-CEO sold Aug 14, 2026 2,500 shares filing $803K
  3. SELLRobertson Andrea sold Aug 3, 2026 789 shares filing $248K
  4. SELLEric W. Gerstenberg, CO-CEO sold Mar 18, 2026 1,000 shares filing $293K
  5. SELLEric W. Gerstenberg, CO-CEO sold Feb 23, 2026 2,500 shares filing $700K
  6. SELLDugas Eric J., EVP CHIEF FINANCIAL OFFICER sold Feb 20, 2026 2,788 shares filing $784K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. FMR LLC filed Aug 6, 2026 Schedule 13G passive 3,002,654 shares filing 5.7%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. April McClain Delaney (D-MD06): Sale Aug 25, 2026 reported Sep 9, 2026 one of 78 trades the member reported that day House Stocks (including ADRs) owner: dependent $50,001 - $100,000
  2. April McClain Delaney (D-MD06): Sale Jul 28, 2026 reported Aug 3, 2026 one of 62 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  3. April McClain Delaney (D-MD06): Sale Jul 27, 2026 reported Aug 3, 2026 one of 62 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  4. April McClain Delaney (D-MD06): Sale Jul 24, 2026 reported Aug 3, 2026 one of 62 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  5. April McClain Delaney (D-MD06): Sale May 1, 2026 reported Jun 5, 2026 one of 53 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  6. April McClain Delaney (D-MD06): Sale Apr 30, 2026 reported May 6, 2026 one of 24 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  7. April McClain Delaney (D-MD06): Purchase Feb 23, 2026 reported Mar 10, 2026 one of 45 trades the member reported that day House Stocks (including ADRs) owner: dependent $15,001 - $50,000
  8. April McClain Delaney (D-MD06): Purchase Dec 3, 2025 reported Jan 5, 2026 one of 16 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition; Regulation FD disclosure filing Oct 28, 2026
  2. Entry into a material definitive agreement; Creation of a direct financial obligation; Other events filing Oct 5, 2026
  3. Other events filing Sep 18, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.