Clean HarborsCLH
13F holders, Q1 2026 (March 31)626holders +58
104new positions
47sold out
9famous investors
$286.49avg. 13F price*
At the end of Q1 2026, 626 institutions reported holding Clean Harbors Inc. (CLH) in their 13F filings, up 58 from Q4 2025. 104 opened new positions and 47 sold out. The largest holders were BlackRock, Inc. ($1.4B), Wellington Management Group LLP ($1.0B) and Janus Henderson Group PLC ($675.4M). 9 famous investors held it, including Stephen Mandel (4.0% of Lone Pine Capital's portfolio), Daniel Sundheim (3.4% of D1 Capital Partners's portfolio) and Joel Greenblatt (0.1% of Gotham Asset Management's portfolio).
- Company
- Clean Harbors Inc.
- CUSIP
- 184496107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 104 | $195.6M |
| Exits | 47 | $227.8M |
All 13F filers, Q4 2025 → Q1 2026: 6,434,258 shares bought and 7,600,337 shares sold, net −1,166,079 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 626 holders
| BlackRock, Inc. | 0.02% | Add +4.4% | 4,802,492 | $1.4B |
| Wellington Management Group LLP | 0.19% | Reduce -31.0% | 3,577,034 | $1.0B |
| Janus Henderson Group PLC | 0.32% | Reduce -0.9% | 2,355,394 | $675.4M |
| Vanguard Capital Management LLC | 0.02% | — | 2,169,364 | $622.0M |
| FMR LLC | 0.03% | Add +464.6% | 2,101,179 | $602.5M |
| Vanguard Portfolio Management LLC | 0.03% | — | 1,962,951 | $562.8M |
| Lone Pine Capital | 4.01% | Add +27.3% | 1,754,950 | $503.2M |
| State Street Corp. | 0.02% | Add +2.3% | 1,537,297 | $440.8M |
| D1 Capital Partners | 3.42% | Reduce -51.9% | 1,338,281 | $383.7M |
| Pictet Asset Management Holding SA | 0.38% | Reduce -34.1% | 1,242,142 | $356.1M |
| Clearbridge Investments, LLC | 0.30% | Reduce -9.5% | 1,202,777 | $344.9M |
| Select Equity Group, L.P. | 1.73% | Add +33.2% | 1,131,602 | $324.5M |
| Durable Capital Partners LP | 3.10% | Add +25.9% | 1,050,973 | $301.3M |
| Geode Capital Management, LLC | 0.02% | Add +3.1% | 945,892 | $271.3M |
| Bessemer Group Inc. | 0.42% | Add +1.8% | 932,027 | $267.2M |
| Snyder Capital Management L P | 5.17% | Reduce -19.2% | 929,327 | $266.5M |
| Goldman Sachs Group Inc. | 0.04% | Add +258.1% | 929,077 | $266.4M |
| First Trust Advisors LP | 0.16% | Add +9.9% | 778,441 | $223.2M |
| Two Sigma Investments, LP | 0.18% | Add +46.9% | 724,028 | $207.6M |
| Dimensional Fund Advisors LP | 0.04% | Reduce -1.8% | 608,709 | $174.5M |
| Nordea Investment Management AB | 0.15% | Reduce -45.4% | 568,408 | $159.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.03% | Reduce -13.1% | 517,561 | $148.4M |
| FIL Ltd | 0.11% | Add +44.5% | 509,679 | $146.1M |
| T. Rowe Price Investment Management, Inc. | 0.09% | Add +1300.5% | 477,287 | $136.9M |
| Charles Schwab Investment Management Inc. | 0.02% | Reduce -0.6% | 474,647 | $136.1M |
| Northern Trust Corp. | 0.02% | Reduce -1.8% | 448,670 | $128.6M |
| William Blair Investment Management, LLC | 0.42% | Add +30.6% | 443,098 | $127.0M |
| Invesco Ltd. | 0.01% | Add +16.9% | 421,460 | $120.8M |
| Vaughan Nelson Investment Management, L.P. | 1.11% | Add +4.2% | 386,540 | $110.8M |
| Bank of New York Mellon Corp | 0.02% | Reduce -4.1% | 382,228 | $109.6M |
| Quantinno Capital Management LP | 0.18% | Add +15.3% | 380,945 | $109.2M |
| DAVENPORT & Co LLC | 0.54% | Reduce -19.0% | 342,582 | $98.2M |
| Bank of America Corp. | 0.01% | Reduce -24.1% | 311,907 | $89.4M |
| Vanguard Fiduciary Trust Co. | 0.02% | — | 309,653 | $88.8M |
| Morgan Stanley | 0.01% | Add +9.9% | 290,329 | $83.2M |
| Westfield Capital Management Co. LP | 0.31% | Add +6.3% | 261,092 | $74.9M |
| M.D. Sass, LLC | 5.49% | Reduce -24.4% | 252,540 | $72.4M |
| Silvercrest Asset Management Group LLC | 0.50% | Reduce -3.9% | 240,299 | $68.9M |
| UBS Group AG | 0.01% | Reduce -59.3% | 226,301 | $64.9M |
| JPMorgan Chase & Co. | 0.00% | Add +7.3% | 214,132 | $59.9M |
| 12th Street Asset Management Company, LLC | 9.60% | Reduce -2.6% | 204,716 | $58.7M |
| Neuberger Berman Group LLC | 0.04% | Add +11.3% | 194,039 | $55.6M |
| DekaBank Deutsche Girozentrale | 0.09% | No change | 180,000 | $51.7M |
| AQR Capital Management | 0.02% | Add +748.8% | 180,668 | $50.6M |
| Raymond James Financial Inc. | 0.02% | Add +6.8% | 173,700 | $49.8M |
| Federated Hermes, Inc. | 0.08% | Add +2.7% | 169,284 | $48.5M |
| Oberweis Asset Management Inc./ | 1.22% | Add +23.5% | 144,355 | $41.4M |
| Leeward Investments, LLC - MA | 1.99% | Reduce -3.0% | 140,651 | $40.3M |
| Natixis Advisors, LLC | 0.06% | Reduce -3.0% | 140,485 | $40.3M |
| Vontobel Holding Ltd. | 0.14% | Reduce -14.3% | 138,096 | $39.6M |
| GMO | 0.10% | Add +24.6% | 135,593 | $38.9M |
| Gotham Asset Management | 0.12% | Add +19.9% | 134,631 | $38.6M |
| Rhumbline Advisers | 0.03% | Add +2.7% | 133,743 | $38.3M |
| Jane Street Group, LLC | 0.04% | Add +1319.4% | 132,797 | $38.1M |
| Mirova | 1.52% | New | 130,675 | $37.5M |
| Hood River Capital Management LLC | 0.36% | Reduce -2.0% | 124,275 | $35.6M |
| Impax Asset Management Group plc | 0.25% | Reduce -17.2% | 122,986 | $35.3M |
| Principal Financial Group Inc. | 0.02% | Add +3.8% | 112,106 | $32.1M |
| Swedbank AB | 0.03% | Reduce -26.7% | 110,000 | $31.5M |
| Trinity Street Asset Management LLP | 2.15% | Reduce -6.6% | 109,391 | $31.4M |
| Amundi | 0.01% | Reduce -43.2% | 106,516 | $30.5M |
| Spirepoint Private Client, LLC | 2.89% | Add +0.2% | 106,046 | $30.4M |
| California Public Employees Retirement System | 0.02% | Reduce -2.9% | 104,730 | $30.0M |
| Royal Bank of Canada | 0.01% | Reduce -8.8% | 104,313 | $29.9M |
| Swiss National Bank | 0.02% | Reduce -0.1% | 100,400 | $28.8M |
| Telemark Asset Management, LLC | 2.65% | Add +25.0% | 100,000 | $28.7M |
| OP Asset Management Ltd | 0.29% | Add +153.8% | 99,201 | $28.4M |
| Visualize Group LP | 11.37% | New | 96,300 | $27.6M |
| Handelsbanken Fonder AB | 0.09% | Reduce -11.6% | 93,344 | $26.8M |
| Retirement Systems of Alabama | 0.09% | Add +1.4% | 92,124 | $26.4M |
| Allspring Global Investments Holdings, LLC | 0.04% | Add +0.0% | 90,265 | $26.2M |
| Cresset Asset Management, LLC | 0.11% | Reduce -15.8% | 88,224 | $25.3M |
| Bank of Montreal | 0.01% | Reduce -6.0% | 88,052 | $25.2M |
| Jupiter Asset Management Ltd. | 0.13% | Reduce -22.7% | 82,925 | $23.8M |
| Loomis Sayles & Co. L P | 0.03% | Reduce -1.4% | 74,783 | $21.4M |
| Victory Capital Management Inc. | 0.01% | Reduce -43.0% | 73,660 | $21.1M |
| Thrivent Financial for Lutherans | 0.04% | Add +35.8% | 72,103 | $20.7M |
| Tidal Investments LLC | 0.06% | Add +20.9% | 71,946 | $20.6M |
| Fort Washington Investment Advisors Inc. | 0.11% | Reduce -22.3% | 71,277 | $20.4M |
| Nuveen, LLC | 0.01% | Reduce -15.0% | 68,966 | $19.8M |
| Needham Investment Management LLC | 1.01% | No change | 68,856 | $19.7M |
| Legal & General Group Plc | 0.00% | Reduce -7.8% | 68,746 | $19.7M |
| Millennium Management | 0.01% | Add +46.5% | 63,880 | $18.3M |
| Charter Oak Advisors LP | 10.99% | Add +4.2% | 63,214 | $18.1M |
| Asset Management One Co., Ltd. | 0.05% | Reduce -5.7% | 62,011 | $17.8M |
| Jones Financial Companies LLLP | 0.01% | Add +6060.1% | 62,587 | $17.5M |
| Perpetual Ltd | 0.27% | Add +1.6% | 60,786 | $17.4M |
| State of Wisconsin Investment Board | 0.04% | Reduce -3.8% | 60,636 | $17.4M |
| Citigroup Inc. | 0.01% | Reduce -21.6% | 60,506 | $17.3M |
| Credit Agricole S A | 0.06% | Add +454.7% | 60,444 | $17.3M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -2.2% | 60,170 | $17.3M |
| California State Teachers Retirement System | 0.02% | Add +22.5% | 59,158 | $17.0M |
| Alliancebernstein L.P. | 0.01% | Add +10.3% | 70,426 | $16.5M |
| Picton Mahoney Asset Management | 0.17% | Reduce -0.1% | 57,420 | $16.5M |
| Sirios Capital Management L P | 1.99% | Reduce -26.6% | 57,213 | $16.4M |
| Point72 Asset Management | 0.03% | Reduce -76.3% | 56,597 | $16.2M |
| New York State Teachers Retirement System | 0.03% | Reduce -2.8% | 56,124 | $16.1M |
| Fuller & Thaler Asset Management, Inc. | 0.05% | Reduce -32.9% | 54,253 | $15.6M |
| GCM Grosvenor Holdings, LLC | 1.71% | Reduce -26.9% | 53,804 | $15.4M |
| State of Alaska, Department of Revenue | 0.16% | Add +0.3% | 53,145 | $15.2M |
"% of holder's portfolio" is CLH's weight in each manager's 13F, not the share of Clean Harbors Inc. the manager owns.