Who owns Clean Harbors (CLH)
Which tracked institutional funds hold CLH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CLH company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
183 tracked funds added or opened CLH while 130 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
CLH’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes CLH more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in CLH divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 615 tracked filers holding CLH, 292 increased or opened the position and 329 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in CLH between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 44
- Jupiter Topco LLC$478M
- STEADFAST CAPITAL MANAGEMENT LP$90M
- Qube Research & Technologies Ltd$74M
- Holocene Advisors, LP$63M
- RENAISSANCE TECHNOLOGIES LLC$25M
- SG Capital Management LLC$22M
Full exits 54
- JANUS HENDERSON GROUP PLC$675M
- LONE PINE CAPITAL LLC$503M
- BESSEMER GROUP INC$267M
- T. Rowe Price Investment Management, Inc.$137M
- DekaBank Deutsche Girozentrale$52M
- NATIXIS ADVISORS, LLC$40M
Largest adds
- BlackRock, Inc.$329M
- FMR LLC$303M
- FIL Ltd$116M
- Hood River Capital Management LLC$113M
- AQR CAPITAL MANAGEMENT LLC$92M
- CITADEL ADVISORS LLC$84M
Largest trims
- Pictet Asset Management Holding SA$174M
- Select Equity Group, L.P.$107M
- WELLINGTON MANAGEMENT GROUP LLP$83M
- TWO SIGMA INVESTMENTS, LP$81M
- Durable Capital Partners LP$35M
- UBS Group AG$31M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 5,076,220 | $1.5B | 11.7% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 3,155,233 | $943M | 7.3% | 2026-Q2 |
| FMR LLC added | 3,002,654 | $897M | 6.9% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,182,972 | $652M | 5.0% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,983,336 | $593M | 4.6% | 2026-Q2 |
| Jupiter Topco LLC new | 1,598,574 | $478M | 3.7% | 2026-Q2 |
| STATE STREET CORP added | 1,582,004 | $473M | 3.6% | 2026-Q2 |
| D1 Capital Partners L.P. trimmed | 1,315,501 | $393M | 3.0% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,129,240 | $337M | 2.6% | 2026-Q2 |
| Clearbridge Investments, LLC trimmed | 1,126,744 | $337M | 2.6% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 993,170 | $297M | 2.3% | 2026-Q2 |
| SNYDER CAPITAL MANAGEMENT L P trimmed | 922,182 | $276M | 2.1% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 900,225 | $269M | 2.1% | 2026-Q2 |
| Durable Capital Partners LP trimmed | 892,405 | $267M | 2.1% | 2026-Q2 |
| FIL Ltd added | 877,433 | $262M | 2.0% | 2026-Q2 |
| Select Equity Group, L.P. trimmed | 728,374 | $218M | 1.7% | 2026-Q2 |
| NORGES BANK added | 632,096 | $189M | 1.5% | 2026-Q2 |
| Pictet Asset Management Holding SA trimmed | 608,808 | $182M | 1.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 606,181 | $181M | 1.4% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 526,178 | $157M | 1.2% | 2026-Q2 |
| Hood River Capital Management LLC added | 498,747 | $149M | 1.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 478,075 | $143M | 1.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 477,994 | $143M | 1.1% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 473,991 | $142M | 1.1% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 466,863 | $139M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 455,688 | $136M | 1.0% | 2026-Q2 |
| Invesco Ltd. added | 450,801 | $135M | 1.0% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 423,106 | $126M | 1.0% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 419,210 | $125M | 1.0% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 354,685 | $106M | 0.8% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 342,589 | $102M | 0.8% | 2026-Q2 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. trimmed | 342,420 | $102M | 0.8% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 314,347 | $94M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 314,047 | $94M | 0.7% | 2026-Q2 |
| STEADFAST CAPITAL MANAGEMENT LP new | 302,091 | $90M | 0.7% | 2026-Q2 |
| DAVENPORT & Co LLC trimmed | 293,384 | $88M | 0.7% | 2026-Q2 |
| MORGAN STANLEY trimmed | 280,859 | $84M | 0.6% | 2026-Q2 |
| M.D. Sass, LLC added | 270,507 | $81M | 0.6% | 2026-Q2 |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 268,348 | $80M | 0.6% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 258,710 | $77M | 0.6% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 247,078 | $74M | 0.6% | 2026-Q2 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 234,409 | $70M | 0.5% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC added | 220,828 | $66M | 0.5% | 2026-Q2 |
| Holocene Advisors, LP added | 211,217 | $63M | 0.5% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 209,377 | $63M | 0.5% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 167,826 | $50M | 0.4% | 2026-Q2 |
| 12th Street Asset Management Company, LLC trimmed | 166,534 | $50M | 0.4% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 161,436 | $48M | 0.4% | 2026-Q2 |
| OBERWEIS ASSET MANAGEMENT INC/ added | 153,475 | $46M | 0.4% | 2026-Q2 |
| Munro Partners added | 149,769 | $45M | 0.3% | 2026-Q2 |
| OP Asset Management Ltd added | 146,009 | $44M | 0.3% | 2026-Q2 |
| Leeward Investments, LLC - MA trimmed | 135,566 | $41M | 0.3% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC trimmed | 135,230 | $40M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 132,825 | $40M | 0.3% | 2026-Q2 |
| Vontobel Holding Ltd. trimmed | 120,389 | $36M | 0.3% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 118,271 | $35M | 0.3% | 2026-Q2 |
| UBS Group AG trimmed | 113,335 | $34M | 0.3% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 112,688 | $34M | 0.3% | 2026-Q2 |
| California Public Employees Retirement System added | 108,605 | $32M | 0.2% | 2026-Q2 |
| SPIREPOINT PRIVATE CLIENT, LLC trimmed | 105,838 | $32M | 0.2% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 105,105 | $31M | 0.2% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 104,914 | $31M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 100,840 | $30M | 0.2% | 2026-Q2 |
| Telemark Asset Management, LLC | 100,000 | $30M | 0.2% | 2026-Q2 |
| Trinity Street Asset Management LLP trimmed | 97,925 | $29M | 0.2% | 2026-Q2 |
| Visualize Group LP | 96,300 | $29M | 0.2% | 2026-Q2 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 93,425 | $28M | 0.2% | 2026-Q2 |
| MIROVA trimmed | 92,631 | $28M | 0.2% | 2026-Q2 |
| Cresset Asset Management, LLC added | 90,669 | $27M | 0.2% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ trimmed | 87,012 | $26M | 0.2% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC trimmed | 85,999 | $25M | 0.2% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 83,198 | $25M | 0.2% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 82,202 | $25M | 0.2% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 81,929 | $24M | 0.2% | 2026-Q2 |
| Eurizon Capital SGR S.p.A. added | 80,250 | $24M | 0.2% | 2026-Q2 |
| CI INVESTMENTS INC. added | 78,681 | $24M | 0.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 78,239 | $23M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 77,092 | $23M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 76,817 | $23M | 0.2% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 76,523 | $23M | 0.2% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD trimmed | 76,373 | $23M | 0.2% | 2026-Q2 |
| SG Capital Management LLC added | 75,270 | $22M | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 74,436 | $22M | 0.2% | 2026-Q2 |
| Assenagon Asset Management S.A. added | 72,519 | $22M | 0.2% | 2026-Q2 |
| LOOMIS SAYLES & CO L P trimmed | 70,872 | $21M | 0.2% | 2026-Q2 |
| NEEDHAM INVESTMENT MANAGEMENT LLC added | 70,106 | $21M | 0.2% | 2026-Q2 |
| Legal & General Group Plc trimmed | 67,504 | $20M | 0.2% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 63,971 | $19M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 61,660 | $18M | 0.1% | 2026-Q2 |
| Impax Asset Management Group plc trimmed | 61,651 | $18M | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 61,180 | $18M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO added | 59,274 | $18M | 0.1% | 2026-Q2 |
| SIRIOS CAPITAL MANAGEMENT L P added | 58,546 | $17M | 0.1% | 2026-Q2 |
| J. Safra Sarasin Holding AG added | 58,499 | $17M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 58,275 | $17M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 55,875 | $17M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 54,000 | $16M | 0.1% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT trimmed | 53,870 | $16M | 0.1% | 2026-Q2 |
| GCM Grosvenor Holdings, LLC | 53,804 | $16M | 0.1% | 2026-Q2 |
| Swedbank AB trimmed | 53,000 | $16M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.