Clean Harbors Ownership | Who Owns Clean Harbors?


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Clean Harbors Ownership Summary


Clean Harbors is owned by 88.31% institutional investors, 5.56% insiders, and 6.13% retail investors. Wellington management group llp is the largest institutional shareholder, holding 10.40% of CLH shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.06% of its assets in Clean Harbors shares.

CLH Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockClean Harbors88.31%5.56%6.13%
SectorIndustrials Stocks 46.77%12.62%40.60%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Wellington management group llp5.57M10.40%$1.29B
Vanguard group4.55M8.49%$1.06B
Blackrock funding, inc. /de4.53M8.46%$1.05B
Blackrock4.54M8.43%$1.03B
D1 capital partners2.45M4.56%$567.91M
Pictet asset management sa1.91M3.57%$442.06M
Janus henderson group1.61M2.99%$371.00M
State street1.52M2.83%$351.96M
Clearbridge investments1.43M2.66%$331.23M
Snyder capital management l p1.15M2.14%$266.71M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Fulcrum asset management llp16.45K10.90%$3.50M
12th street asset management company214.11K8.41%$49.72M
Ctf capital management, lp76.14K8.25%$17.68M
Rivermont capital management lp122.65K7.52%$28.48M
D1 capital partners2.45M6.52%$567.91M
Charter oak advisors lp64.59K5.38%$15.00M
Snyder capital management l p1.15M5.04%$266.71M
M.d. sass259.66K4.91%$60.30M
Shannon river fund management115.87K4.33%$26.91M
Pacific capital partners15.75K4.07%$3.66M

Top Buyers

HolderShares% AssetsChange
D1 capital partners2.45M6.52%1.00M
Norges bank595.18K0.02%595.18K
Durable capital partners lp573.67K0.99%573.67K
Nordea investment management ab471.21K0.10%471.21K
Goldman sachs group307.37K0.01%242.18K

Top Sellers

HolderShares% AssetsChange
Zurich insurance group ltd/fi---520.91K
Artemis investment management llp---230.86K
Fmr29.77K0.00%-212.71K
Wellington management group llp5.57M0.23%-190.85K
Marshall wace, llp3.13K0.00%-190.04K

New Positions

HolderShares% AssetsChangeValue
Norges bank595.18K0.02%595.18K$136.97M
Durable capital partners lp573.67K0.99%573.67K$133.22M
Nordea investment management ab471.21K0.10%471.21K$108.61M
Grantham, mayo, van otterloo124.56K0.08%124.56K$28.92B
Shannon river fund management115.87K4.33%115.87K$26.91M

Sold Out

HolderChange
Newsquare capital-1.00
Tfo-tdc-1.00
Stephens consulting-2.00
Gilliland jeter wealth management-2.00
Perkins coie trust-2.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025549-5.34%47,325,852-3.44%881.06%235-2.89%197-12.44%
Jun 30, 2025571-48,854,6851.65%911.14%242-12.95%2188.46%
Mar 31, 2025564-3.09%47,753,168-2.07%881.09%2712.26%201-3.37%
Dec 31, 2024462-20.75%39,512,599-15.87%730.97%206-24.26%163-19.70%
Sep 30, 20245778.66%46,843,376-3.52%861.07%267-1.48%20322.29%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Mid-Cap ETF1.64M3.06%-
Vanguard US Total Market Shares ETF1.54M2.84%1.19K
Vanguard Total Stock Mkt Idx Inv1.51M2.82%-32.09K
Janus Henderson Enterprise D1.30M2.42%-
Janus Inst Mid Cap Growth CF1.30M2.42%-
Vanguard Small Cap Index1.17M2.18%-7.74K
AF Global Equity (AFRIS)963.30K1.78%963.30K
Pictet-Water I EUR857.94K1.60%128.09K
Pictet-Security I USD691.40K1.29%11.09K
Vanguard Small Cap Growth Index Inv658.99K1.23%-1.51K

Recent Insider Transactions


DateNameRoleActivityValue
Jul 31, 2025Robertson Andrea-Sell$195.32K
Aug 01, 2025Battles Michael Louis CO-CEOBuy$467.00K
Jun 13, 2025Weber Brian P EVP (CHESI)Sell$689.46K
Jun 06, 2025GERSTENBERG ERIC W CO-CEOSell$1.82M
Jun 04, 2025MCKIM ALAN S EXEC CHAIR, CTO.Sell$9.43M

Insider Transactions Trends


DateBuySell
2025 Q4--
2025 Q311
2025 Q2-8
2025 Q115
2024 Q4-6

CLH Ownership FAQ


Who owns the most shares of Clean Harbors?

Clean Harbors’s largest shareholders are Wellington management group llp (5.57M shares, 10.40%), Vanguard group (4.55M shares, 8.49%), and Blackrock funding, inc. /de (4.53M shares, 8.46%). Together, they hold 27.36% of Clean Harbors’s total shares outstanding.

Does Blackrock own Clean Harbors?

Yes, BlackRock owns 8.43% of Clean Harbors, totaling 4.54M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 1.03B$. In the last quarter, BlackRock increased its holdings by 159.32K shares, a 3.63% change.

Who is Clean Harbors’s biggest shareholder by percentage of total assets invested?

Fulcrum asset management llp is Clean Harbors’s biggest shareholder by percentage of total assets invested, with 10.90% of its assets in 16.46K Clean Harbors shares, valued at 3.5M$.

Who is the top mutual fund holder of Clean Harbors shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Clean Harbors shares, with 3.06% of its total shares outstanding invested in 1.64M Clean Harbors shares.

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