$CLH is held by 13 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 1.64%, with an average of 0.25% of portfolio. Largest holder: Sandler Capital Management at 1.64%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.
CLEAN HARBORS INC
13F holders
625
Net 13F flow · Q
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Insider buys · 90d
0
Insider net · 90d
—
Congress · 90d
1trades
Convergence
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Institutional holders
Top 10 of 625 · Source: 13F-HR01
Gardner Russo & Quinn LLC
—
—
02
Thomas H Lee Partners LP
—
—
03
Pelion, Inc.
—
—
04
Augustine Asset Management Inc.
—
—
05
Immersion Corp.
—
—
06
Independent Investors Inc.
—
—
07
Axa S.a.
—
—
08
State Street
—
—
09
EDENTREE ASSET MANAGEMENT Ltd
—
—
10
Bank of Nova Scotia Trust Co.
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Each fund name links to that filer's expert page. Share counts and per-fund weights are pending the 13F ingest fix (portfolios_expertholding.units is currently mis-populated — see the same caveat on the fund detail page's holdings table). Quarter-over-quarter delta ships with the metrics pipeline.
Smart Money · top-200 alpha cohort
13 holders · Q1 202601
Sandler Capital Management
1.64% NEW
α +12.8pts
02
D L Carlson Investment Group Inc.
0.95% held
α +17.7pts
03
Oribel Capital Management, LP
0.25% NEW
α +12.0pts
04
Wellington Management Group LLP
0.19% held
α +10.5pts
05
New Age Alpha Advisors, LLC
0.08% held
α +10.8pts
06
Fiduciary Alliance LLC
0.04% held
α +16.8pts
07
Fulton Bank, N.a.
0.03% held
α +23.8pts
08
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.03% held
α +27.5pts
09
Quarry LP
0.03% held
α +10.6pts
10
CV Advisors LLC
0.02% held
α +29.1pts
11
Citigroup Inc.
0.01% held
α +26.3pts
12
Bradley Foster & Sargent INC
0.01% held
α +11.1pts
13
Nisa Investment Advisors, LLC
0.00% held
α +16.6pts
Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.
Insider activity · last 90 days
18 transactions · 10 filersTransaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.
Congress trades · last 90 days
8 disclosures · STOCK ActConvergence · Pattern Engine ships in v1.1
30-day windowIn development
Convergence detection for $CLH lands with the Pattern Engine.
Once the Pattern Engine ships, this section will surface every active convergence event involving $CLH — the institutional managers and Congress members on the same name, the 30-day window, and the combined position size.
Source data: SEC EDGAR · 13F-HR · Form 4 · CapitolTrades · Last refreshed 13:26 UTC.