CLH

Clean Harbors Inc
UtilitiesUSCUSIP 184496107◍ Confluence graph
Tracked 13F Holders
566
-192 QoQ
13F Value (tracked)
$11.9B
Insider Net · 180d
-$3.0M
1↑ 5↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)25 adding · 36 trimming
Insider net (180d)-$3.0M

Who owns CLH?

566 tracked 13F filers

566 tracked 13F filers disclose a position in CLH as of the latest SEC 13F filings, a combined $11.9B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
3 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$1.4B
4.8M
+4.4%
Added · +201K sh
Q1 2026
2JANUS HENDERSON GROUP PLC
$675.4M
2.4M
−0.9%
Reduced · −21K sh
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$622.0M
2.2M
First observed position
No prior filed position
Q1 2026
4FMR LLC
$602.5M
2.1M
+465%
Added · +1.7M sh
Q1 2026
5VANGUARD PORTFOLIO MANAGEMENT LLC
$562.8M
2.0M
First observed position
No prior filed position
Q1 2026
6LONE PINE CAPITAL LLC
$503.2M
1.8M
+27%
Added · +377K sh
Q1 2026
7STATE STREET CORP
$472.6M
1.6M
+2.9%
Added · +45K sh
Q2 2026
8D1 Capital Partners L.P.
$393.0M
1.3M
−1.7%
Reduced · −23K sh
Q2 2026
9Pictet Asset Management Holding SA
$356.1M
1.2M
−34%
Reduced · −644K sh
Q1 2026
10Clearbridge Investments, LLC
$344.9M
1.2M
−9.5%
Reduced · −127K sh
Q1 2026
11GEODE CAPITAL MANAGEMENT, LLC
$337.4M
1.1M
+19%
Added · +183K sh
Q2 2026
12GOLDMAN SACHS GROUP INC
$266.4M
929K
+258%
Added · +670K sh
Q1 2026
13SNYDER CAPITAL MANAGEMENT L P
$275.5M
922K
−0.8%
Reduced · −7K sh
Q2 2026
14FIRST TRUST ADVISORS LP
$223.2M
778K
+9.9%
Added · +70K sh
Q1 2026
15TWO SIGMA INVESTMENTS, LP
$207.6M
724K
+47%
Added · +231K sh
Q1 2026
16NORGES BANK
$152.2M
649K
+1.6%
Added · +10K sh
Q4 2025
17DIMENSIONAL FUND ADVISORS LP
$174.5M
609K
−1.8%
Reduced · −11K sh
Q1 2026
18NORDEA INVESTMENT MANAGEMENT AB
$159.3M
568K
−45%
Reduced · −472K sh
Q1 2026
19UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$148.4M
518K
−13%
Reduced · −78K sh
Q1 2026
20FIL Ltd
$146.1M
510K
+45%
Added · +157K sh
Q1 2026
21Hood River Capital Management LLC
$149.0M
499K
+301%
Added · +374K sh
Q2 2026
22T. Rowe Price Investment Management, Inc.
Withheld
477K
14×
Added · +443K sh
Q1 2026
23CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$136.1M
475K
−0.6%
Reduced · −3K sh
Q1 2026
24NORTHERN TRUST CORP
$128.6M
449K
−1.8%
Reduced · −8K sh
Q1 2026
25WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
$125.2M
419K
−5.4%
Reduced · −24K sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is CLH being bought or sold by institutions?

Last quarter, 3 funds opened a new position in CLH and 22 added to an existing one, while 36 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
3
funds
Added
22
funds
Reduced
36
funds
Exited
0
funds

Funds that own CLH also own

CompanyCo-held byCombined value
AMAZON.COM INCAMZN331 funds$204.3B
NVIDIA CORPNVDA330 funds$406.3B
MICROSOFT CORPMSFT328 funds$276.4B
ALPHABET INC-CL AGOOGL321 funds$175.7B
META PLATFORMS INC-CLASS AMETA319 funds$122.7B
ELI LILLY & COLLY318 funds$79.3B
APPLE INCAAPL317 funds$302.2B
BROADCOM INCAVGO309 funds$158.0B
JPMORGAN CHASE & COJPM309 funds$65.3B
COSTCO WHOLESALE CORPCOST306 funds$37.9B
VISA INC-CLASS A SHARESV304 funds$66.3B
ADVANCED MICRO DEVICESAMD304 funds$38.9B

Ranked by how many of CLH's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$136K
1 insiders
Sells · 180d
$3.2M
5 insiders
Net
-$3.0M
7 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 14, 2026GERSTENBERG ERIC WCO-CEOSell (S)3K$803K
Aug 3, 2026Robertson AndreaDirectorSell (S)789$248K
May 26, 2026States LaurenDirectorSell (S)789$226K
May 11, 2026Polito KarynDirectorBuy (P)460$136K
Mar 18, 2026Reed Marcy L.DirectorSell (S)836$241K
Mar 18, 2026GERSTENBERG ERIC WCO-CEOSell (S)1K$293K
Mar 17, 2026Weber Brian PEVP (CHESI)Sell (S)5K$1.4M
Mar 4, 2026MCKIM ALAN SEXEC CHAIR, CTO., DirectorSell (S)100K$29.3M
Feb 23, 2026GERSTENBERG ERIC WCO-CEOSell (S)3K$700K
Feb 20, 2026Gabriel Sharon M.EVP/CIO (CHESI)Sell (S)4K$999K
Feb 20, 2026Dugas Eric J.EVP CHIEF FINANCIAL OFFICERSell (S)3K$784K
Feb 19, 2026MCKIM ALAN SEXEC CHAIR, CTO., DirectorSell (S)100K$28.1M

Institutional ownership over time

332 funds-79 since Q3 2024
0262524Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $3.1B · 1 values withheld

Share classes

Class13F holdersValue held
CLHthis pagecs566 funds$11.9B
184496AR8Corporate Bond - Domestic1 funds$75K

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

15 shown

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Connected entities for CLH

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Ask your agent what changed in CLH

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/CLH/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CLH.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for CLH. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.