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CLH · Clean Harbors Inc

Industrials · +0.1% on Oct 16

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Updated Oct 17 · 6 feeds behind: Insider filings, 2 days, and 5 more · Every feed →

On this page

The market view

Price chart

The interactive CLH chart (by TradingView) loads here.

Our take

3 rules fired on CLH

In short: none of these rules has solid or some evidence yet, so they show no clear lean on CLH.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

The 0–100 score for CLH, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on CLH, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
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Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of CLH. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 21, 2026–Oct 18, 2026 · UTC dates · today is excluded

Congress sales

Within earlier range

This count falls within the range of the 12 earlier comparable periods in this view.

Latest 28 days
0
Earlier median
0
Earlier range
0–1
Distinct filers per 28 daysScale: 0–1
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 0

Who appears in the latest period?

No named filers on file for this period.

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Jan 13, 2025. Newest disclosure across this feed: Oct 15, 2026.

Earlier periods in the comparison: 12. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 2026—Unavailable
Jun 29, 2026–Jul 26, 2026—Unavailable
Jul 27, 2026–Aug 23, 20260Partial; excluded
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Insider sales · Short history

Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 2026—Unavailable
Jun 29, 2026–Jul 26, 2026—Unavailable
Jul 27, 2026–Aug 23, 20262Partial; excluded
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Congress purchases · Sparse history

Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual. Earlier median: 0; range: 0–1.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20250Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20261Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20261Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20260Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20260Within stored history
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Congress sales · Within earlier range

This count falls within the range of the 12 earlier comparable periods in this view. Earlier median: 0; range: 0–1.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20250Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20260Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20260Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20261Within stored history
May 4, 2026–May 31, 20261Within stored history
Jun 1, 2026–Jun 28, 20261Within stored history
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20261Within stored history
Aug 24, 2026–Sep 20, 20261Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Public officials

Owners & lobbying

All 18 records in this snapshot
  1. Filed
  2. Filed
  3. Filed
  4. Filed
  5. Filed
  6. Disclosed
    April McClain Delaney · Sale

    Transaction dated Aug 25, 2026

  7. Disclosed
    Eric W Gerstenberg · Sale

    Transaction dated Aug 14, 2026

  8. Filed
  9. Filed
  10. Disclosed
    Andrea Robertson · Sale

    Transaction dated Aug 3, 2026

  11. Filed
  12. Disclosed
    April McClain Delaney · Sale (partial)

    Transaction dated Jul 28, 2026

  13. Disclosed
    April McClain Delaney · Sale (partial)

    Transaction dated Jul 27, 2026

  14. Disclosed
    April McClain Delaney · Sale (partial)

    Transaction dated Jul 24, 2026

  15. Disclosed
    April McClain Delaney · Sale (partial)

    Transaction dated May 1, 2026

  16. Filed
  17. Disclosed
    April McClain Delaney · Sale

    Transaction dated Apr 30, 2026

  18. Disclosed
    April McClain Delaney · Sale (partial)

    Transaction dated Apr 30, 2026

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

No member bought, 1 sold · 1 Dem

  1. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$50K–$100Kdisclosed Sep 1 · filed 7 days after the trade
  2. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Aug 1 · filed 4 days after the trade
  3. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Aug 1 · filed 5 days after the trade
  4. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Aug 1 · filed 8 days after the trade
See every Congress trade on CLH →

Company insiders

0 buys · 2 sells · $1.1M sold

  1. ▼ SELLEric W Gerstenberg Co-CEOCLH Clean Harbors Inc$803Kdisclosed Aug 18 · filed 4 days after the trade
  2. ▼ SELLAndrea Robertson DirectorCLH Clean Harbors Inc$248Kdisclosed Aug 3 · filed the same day
See every insider trade on CLH →

Big holders (Schedule 13D / 13G): 1 filing in the last 90 days · newest: Fmr LLC (13G), Aug 6, 2026 ↗

Filings & events

Company filings (8-K) 62

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Quarterly or yearly results · item 2.0210
  • Other events · item 8.018
  • Signed a major agreement · item 1.015
  • Took on new debt · item 2.035
  • Directors or officers joined, left or got new pay · item 5.023
  • Shareholder vote results · item 5.073

Filing red flags 2

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

Lobbying 5

Lobbying reports filed with the Senate for the company.

$450K across 5 reports

Issues named in the most reports

  • Aviation/Airlines/Airports 5
  • Environment/Superfund 5

Planned insider sales (Form 144) 35

Notices insiders file before they sell certain shares, such as ones they got straight from the company.

2 in the last 90 days · 35 notices on file

The notices on file don't give the sale's size; each sale shows up under company insiders once it is reported.

5% owners (13D / 13G) 2

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13G, just holds: 2 filings

Filed by Fmr LLC · D1 Capital Partners L.P.

Biggest named funds (13F)

The largest CLH holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on CLH

  1. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$50K–$100Kdisclosed Sep 1 · filed 7 days after the trade
  2. ▼ SELLEric W Gerstenberg Co-CEOCLH Clean Harbors Inc$803Kdisclosed Aug 18 · filed 4 days after the trade
  3. ▼ SELLAndrea Robertson DirectorCLH Clean Harbors Inc$248Kdisclosed Aug 3 · filed the same day
  4. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Aug 1 · filed 4 days after the trade
  5. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Aug 1 · filed 5 days after the trade
  6. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Aug 1 · filed 8 days after the trade
  7. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Jun 1 · filed 31 days after the trade
  8. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed May 6 · filed 6 days after the trade
  9. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed May 1 · filed 1 day after the trade
  10. ▲ BUYApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$15K–$50Kdisclosed Mar 1 · filed 6 days after the trade
  11. ▲ BUYApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Jan 1 · filed 29 days after the trade
  12. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Sep 1, 2025 · filed 25 days after the trade
  13. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Jul 1, 2025 · filed 11 days after the trade
  14. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Mar 1, 2025 · filed 19 days after the trade
  15. ▼ SELLApril McClain Delaney Dem · House · MDCLH Clean Harbors Inc$1K–$15Kdisclosed Mar 1, 2025 · filed 22 days after the trade
  16. ▼ SELLRobert P. Bresnahan Jr Rep · House · PACLH Clean Harbors Inc$1K–$15Kdisclosed Jan 13, 2025 · filed the same day
See the trades on CLH in the feed →
People & votes

Which members of Congress traded CLH, sponsored bills that touch it and voted on them — opens here.