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Public ownership evidence

Clean Harbors, Inc (CLH) Ownership Disclosures

Read CLH insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-11-022026-10-29Polito KarynP125Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-29 and its public availability date is 2026-11-02. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code P: a purchase. A purchase code is only one eligibility check. Confirm reporting-owner role, amendment lineage and coverage before treating it as a strategy input.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent Form 4 activity

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2026-11-022026-10-29Polito KarynP125Not reported
2026-08-192026-08-14GERSTENBERG ERIC WS2,500Not reported
2026-08-152026-02-20Dugas Eric J.S2,788Not reported
2026-08-152026-03-18GERSTENBERG ERIC WS1,000Not reported
2026-08-152026-02-23GERSTENBERG ERIC WS2,500Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-292$598None
Cornerstone Financial Management LLC2026-03-312026-08-292$573None
Advisors Asset Management, Inc.2022-12-312026-08-2819,967$2,278,634None
Advisors Asset Management, Inc.2022-06-302026-08-288,073$708,000None
Corient Private Wealth LP2026-06-302026-08-2821,955$6,559,067None
Corient Private Wealth LP2026-06-302026-08-281,305$389,869None
Principia Wealth Advisory, LLC2026-06-302026-08-271$299None
Principia Wealth Advisory, LLC2026-03-312026-08-271$287None
Brown Financial Advisors2026-06-302026-08-27943$281,721None
Advisors Asset Management, Inc.2024-03-312026-08-2721,546$4,337,425None
Advisors Asset Management, Inc.2025-03-312026-08-2719,026$3,750,025None
Advisors Asset Management, Inc.2022-09-302026-08-2714,944$1,644,000None
Advisors Asset Management, Inc.2022-03-312026-08-275,923$661,244None
Advisors Asset Management, Inc.2023-06-302026-08-2725,615$4,211,874None
Advisors Asset Management, Inc.2023-09-302026-08-2726,760$4,478,554None
Advisors Asset Management, Inc.2023-03-312026-08-2725,814$3,680,044None
Advisors Asset Management, Inc.2025-09-302026-08-2712,805$2,973,577None
Advisors Asset Management, Inc.2023-12-312026-08-2719,912$3,474,843None
Groupe la Francaise2026-06-302026-08-268,588$2,566,371None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-263,320$991,850None
Advisors Asset Management, Inc.2025-06-302026-08-2518,042$4,170,950None
First Eagle Investment Management, LLC2026-06-302026-08-253,858$1,152,578None
First Eagle Investment Management, LLC2026-06-302026-08-2516$4,780None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2558,275$17,409,656None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2517,409,656$58,275,000None
Advisors Asset Management, Inc.2024-09-302026-08-2218,731$4,527,470None
Advisors Asset Management, Inc.2024-06-302026-08-2221,565$4,876,925None
Advisors Asset Management, Inc.2024-12-312026-08-2218,577$4,275,311None
Advisors Asset Management, Inc.2025-12-312026-08-229,749$2,285,946None
Assenagon Asset Management S.A.2026-06-302026-08-2272,519$21,665,051None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2015,351$4,586,144None
Beacon Pointe Advisors, LLC2026-06-302026-08-191,158$345,953None
Ensign Peak Advisors, Inc2026-03-312026-08-1912,343$3,539,108None
Ensign Peak Advisors, Inc2025-12-312026-08-192,821$661,468None
Ensign Peak Advisors, Inc2025-09-302026-08-197,571$1,758,138None
Fulcrum Asset Management LLP2026-06-302026-08-196,569$1,969,386None
Corient Private Wealth LP2026-06-302026-08-1824,156$7,216,616None
Empowered Funds, LLC2026-06-302026-08-183,378$1,009,178None
Empowered Funds, LLC2026-06-302026-08-18130$38,838None
Transamerica Financial Advisors, LLC2026-06-302026-08-181$298None
UNITED CAPITAL FINANCIAL ADVISORS, LLC2026-06-302026-08-181,306$390,168None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-18887$264,991None
Proficio Capital Partners LLC2026-06-302026-08-181,996$596,305None
Jefferies Financial Group Inc.2026-06-302026-08-185,185$1,549,019None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1832,357$9,666,654None
Odyssean, LLC2026-06-302026-08-154,145$1,238,319None
SMA Capital LLC2026-06-302026-08-1510,000$2,987,500None
AMERIFLEX GROUP, INC.2026-06-302026-08-158$2,390None
STANCE CAPITAL LLC2026-06-302026-08-1511$3,286None
SEI INVESTMENTS CO2026-06-302026-08-1547,041$14,053,499None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.