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SEC EDGAR: CIK 822818CLH stock profile & AI dashboard →

13F Pro Quality Score

55.6/100

Rank #1,242 of 2,960 stocksTOP 50%

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Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

43.1/100

Profitability

53.6/100

Balance Sheet

71.2/100

Earnings Quality

47.8/100

Free Cash Flow

49.7/100

Institutional Flow

32.2/100

Revenue Scale

80.5/100

Dilution Risk

73.3/100
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CLH Stock Analysis & AI Quality Score

Data updated 2026-09-10

AI stock analysis and institutional research for CLEAN HARBORS INC (CLH), a Utilities sector company. 13F Pro's AI-powered ranking engine scores CLH at 55.6/100 on a 32-signal composite quality model, placing it at rank #1,242 of 2,960 stocks — the top half of the AI-ranked universe. CLH scores in the top quartile across revenue scale (80.5). Areas of concern include institutional flow (32.2), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), CLEAN HARBORS INC reports quarterly revenue of $1.5B, net income of $63.2M, an operating margin of 8.2%. Top institutional holders of CLH by reported 13-F value include BlackRock, WELLINGTON MANAGEMENT GROUP LLP, FMR, based on the most recent SEC filings. CLH trades on the NYSE exchange and files with the SEC under CIK 822818. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate CLH daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for CLEAN HARBORS INC directly from SEC EDGAR. CLEAN HARBORS INC's 13F Pro composite quality score has ranged between 51 and 72 since 2021, currently 55.6 — an improving long-term trajectory across 67 quarterly and live scoring snapshots.

Fun facts about CLEAN HARBORS INC

Quirks, history, and lore behind CLH — the kind of stuff that makes a stock memorable.

  • 1
    The Basics
    U.S. environmental services company · mid-cap · listed on the NYSE · headquartered in Massachusetts.
  • 2
    The Numbers
    Annual revenue of roughly $6 billion, built on thousands of industrial clients who desperately need someone to deal with their hazardous waste — because nobody else wants to.
  • 3
    The History
    Founded in 1980 in New England, it grew by acquiring smaller rivals and quietly became North America's largest hazardous-waste management and environmental-services company.
  • 4
    The Secret
    It doesn't just haul away nasty stuff — it also recycles and re-refines used oil and solvents, turning industrial waste streams into sellable fuel and base oil.
  • 5
    The Lore
    Its Safety-Kleen subsidiary is the go-to parts-washer and used-oil collector for auto shops across the continent — a brand that predates the parent company's ownership by decades.
  • 6
    The Giveaway
    When a factory, a Superfund site, or a chemical spill needs cleaning up, this company — whose very name promises a tidy outcome — shows up with the hazmat suits and tanker trucks.
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Revenue

Q1 2026

$1.5B

Net Income

Q1 2026

$63.2M

Free Cash Flow

Q1 2026

$-92.1M

Operating Margin

Q1 2026

8.2%

ROIC

Q1 2026

8.6%

D/E Ratio

Q1 2026

1.00

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+2.4% YoY
$6.03BFY 2025
FY22 $5.17BFY23 $5.41BFY24 $5.89BFY25 $6.03B

Net Income

-2.8% YoY
$391.0MFY 2025
FY22 $411.7MFY23 $377.9MFY24 $402.3MFY25 $391.0M

Operating Income

+0.5% YoY
$673.4MFY 2025
FY22 $634.7MFY23 $612.4MFY24 $670.2MFY25 $673.4M

EPS (Diluted)

-1.9% YoY
$7.28FY 2025
FY22 $7.56FY23 $6.95FY24 $7.42FY25 $7.28

Total Assets

+3.3% YoY
$7.62BFY 2025
FY22 $6.13BFY23 $6.38BFY24 $7.38BFY25 $7.62B

Total Debt

-0.4% YoY
$2.78BFY 2025
FY22 $2.42BFY23 $2.30BFY24 $2.79BFY25 $2.78B

Op. Cash Flow

+11.4% YoY
$866.7MFY 2025
FY22 $626.2MFY23 $734.6MFY24 $777.8MFY25 $866.7M

Free Cash Flow

+27.9% YoY
$441.8MFY 2025
FY22 $281.2MFY23 $312.3MFY24 $345.5MFY25 $441.8M

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Available Research

13F Pro tracks comprehensive data for CLEAN HARBORS INC including:

SEC EDGAR filings (10-K, 10-Q, 8-K)
XBRL financial facts (revenue, EPS, margins)
Insider transactions (Form 4)
Institutional 13F holdings
Quality rankings (32 signals)
AI analyst debates & daily meetings
Historical financial trends
Peer comparison & sector analysis

Top Institutional Holders of CLH

Companies Similar to CLH

Ranked by quality-profile closeness and shared hedge-fund ownership — not just sector membership.

RSG

REPUBLIC SERVICES, INC.

62
AI score
Very similar · 20 shared holders
WM

WASTE MANAGEMENT INC

68
AI score
Similar quality profile · 14 shared holders
VST

Vistra Corp.

68
AI score
Similar quality profile · 8 shared holders
WCN

Waste Connections, Inc.

66
AI score
Similar quality profile · 18 shared holders
AWK

American Water Works Company, Inc.

59
AI score
Similar quality profile · 19 shared holders
OGE

OGE ENERGY CORP.

66
AI score
Similar quality profile · 14 shared holders
ES

EVERSOURCE ENERGY

67
AI score
Similar quality profile · 9 shared holders

Similarity is computed from the 8 composite sub-scores and latest-quarter 13F conviction holdings (index-style filers excluded). Refreshed monthly.

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Is CLH a good stock to buy?

13F Pro's AI-powered analysis of CLEAN HARBORS INC (CLH) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Utilities sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for CLH are available on the CLH stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. CLH is classified as a large company.

Which hedge funds own CLH?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling CLH. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of CLEAN HARBORS INC's investment landscape.