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CLH · Clean Harbors Inc
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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475
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CLH

CLEAN HARBORS INC
UTILITIES · HAZARDOUS WASTE MANAGEMENT · CIK 0000822818
CONGRESS · 1FORM 144 · 2☆ WATCH
INSIDER NET · 180D
-$3.3M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
1
CONGRESS BUYERS · 1Y
1
FUNDS ADDED · QTR
304
13F, latest reported quarter
REVENUE GROWTH
+2.4%
XBRL, annual
NET MARGIN
6.5%
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$3.3M over 180 days
-$1.1M over 90 days
below 79% of Utilities
CONGRESS
1 member bought in the last year
the lowest in Utilities
FUNDS
304 funds added or opened last quarter
more than 64% of Utilities
REVENUE
+2.4% year over year
below 71% of Utilities
MARGIN
6.5% net margin
below 72% of Utilities
BUYBACKS
$25.0M repurchased, FY to 2026-03-31
more than 50% of Utilities
SHORT
2.5% of shares outstanding short · 2.2 days to cover · settled 2026-07-31
below 57% of Utilities
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$3.3M across 5 people in 180 days.
304 funds added or opened positions in the latest 13F quarter, of 663 holders.
1 member of Congress reported buying it this year.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +32.3%
+32.3%12M
-16%+1%+18%+35%2025-092025-102025-122026-032026-052026-072026-09 2026-03-04 · MCKIM ALAN S sold $29.3M2026-02-19 · MCKIM ALAN S sold $28.1M2026-03-17 · Weber Brian P sold $1.4M2026-02-20 · Gabriel Sharon M. sold $998.5K2026-08-14 · GERSTENBERG ERIC W sold $803.4K2026-02-20 · Dugas Eric J. sold $784.3K2026-02-20 · Dugas Eric J. sold $784.3K2026-02-23 · GERSTENBERG ERIC W sold $699.6K2026-02-23 · GERSTENBERG ERIC W sold $699.6K2026-03-18 · GERSTENBERG ERIC W sold $293.0K2026-03-18 · GERSTENBERG ERIC W sold $293.0K2026-08-03 · Robertson Andrea sold $247.8K2026-03-18 · Reed Marcy L. sold $240.7K2026-05-26 · States Lauren sold $225.8K2026-02-19 · Welch John R. sold $204.8K2025-12-16 · GERSTENBERG ERIC W sold $144.8K2026-05-11 · Polito Karyn bought $135.8K2026-08-14 · GERSTENBERG ERIC W filed to sell $805.0K2026-08-03 · ANDREA ROBERTSON filed to sell $247.8K
INSIDER BUYINSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $3.3M sold by insiders over 180 days, 304 funds added last quarter, 1 Congress member(s) bought in 12 months, $1.1M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, CLEAN HARBORS INC insiders sold a net $3.3M of stock across 124 Form 4 purchases and sales, with 1 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER
FILED
SHARES
VALUE
GERSTENBERG ERIC W
CO-CEO
SELL
2026-08-14
2,500.0
$803.4K
Robertson Andrea
Director
SELL
2026-08-03
789.0
$247.8K
States Lauren
Director
SELL
2026-05-26
789.0
$225.8K
Polito Karyn
Director
BUY
2026-05-11
460.0
$135.8K
GERSTENBERG ERIC W
CO-CEO
SELL
2026-03-18
1,000.0
$293.0K
124 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 119 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
5,076,220.0 sh
$1.5B
WELLINGTON MANAGEMENT GROUP LLP
3,155,233.0 sh
$942.6M
FMR LLC
3,002,654.0 sh
$897.0M
VANGUARD CAPITAL MANAGEMENT LLC
2,182,972.0 sh
$652.2M
VANGUARD PORTFOLIO MANAGEMENT LLC
1,983,336.0 sh
$592.5M
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
GERSTENBERG ERIC W
FILED 2026-08-14
$805.0K
ANDREA ROBERTSON
FILED 2026-08-03
$247.8K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
DAVENPORT EQUITY OPPORTUNITIES FUND
$42.5M POSITION · AS OF 2026-03-31
5.6%
Saratoga Large Capitalization Value Portfolio
$1.0M POSITION · AS OF 2026-02-28
5.6%
VanEck Environmental Services ETF
$4.3M POSITION · AS OF 2026-03-31
4.6%
Transamerica Mid Cap Growth
$5.8M POSITION · AS OF 2026-04-30
4.4%
GMO Domestic Resilience ETF
$1.6M POSITION · AS OF 2026-02-28
4.0%
GMO Small Cap Quality Fund
$24.3M POSITION · AS OF 2026-02-28
3.5%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$6.0B$5.9B$5.4B$5.2B
OPERATING INCOME$673.4M$670.2M$612.4M$634.7M
NET INCOME$391.0M$402.3M$377.9M$411.7M
EPS (DILUTED)7.287.426.957.56
OPERATING CASH FLOW$866.7M$777.8M$734.6M$626.2M
LONG-TERM DEBT$2.8B$2.8B$2.3B$2.4B
BUYBACKS$250.0M$55.2M$51.2M$50.2M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

SEC FORM 4FORM 13F 13D/GFORM 144XBRL STOCK ACTCONTRACTSFEC CFPBNRC
© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-05 ALL SYSTEMS LIVE FOR MACHINES →