CLEAN HARBORS INC (CLH) Institutional Shareholders
CLEAN HARBORS INC (CLH) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $14.98B in CLH holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of CLH tracked by InsiderSet, reporting ownership valued at approximately $1.52B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.62B, representing an estimated gain of +6.76% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed CLH value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Wellington Management Group Llp, Fmr Llc, and several other long-term asset managers with concentrated positions in CLEAN HARBORS INC (CLH).
This page ranks the largest institutional CLH shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
640
Total Reported Value
$14.98B
Largest Holder
Blackrock, Inc.
Largest Position
$1.52B
Insider Transactions (90d)
11
Latest Filing Quarter
Q2 2026
New Institutional Positions
62
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 5,076,220 | $1,516,520,650 | $1,619,111,131 | +$102,590,481 | +6.76% | |
| Wellington Management Group Llp | 0.16% | 3,155,233 | $942,625,861 | $1,006,393,118 | +$63,767,257 | +6.76% | |
| Fmr Llc | 0.04% | 3,002,654 | $897,042,939 | $957,726,520 | +$60,683,581 | +6.76% | |
| Janus Henderson Group Plc | 0.33% | 2,355,394 | $675,367,739 | $751,276,470 | +$75,908,731 | +11.24% | |
| Vanguard Capital Management Llc | 0.01% | 2,182,972 | $652,162,885 | $696,280,749 | +$44,117,864 | +6.76% | |
| Vanguard Portfolio Management Llc | 0.03% | 1,983,336 | $592,521,630 | $632,604,851 | +$40,083,221 | +6.76% | |
| State Street Corp | 0.01% | 1,582,004 | $472,623,695 | $504,595,996 | +$31,972,301 | +6.76% | |
| D1 Capital Partners L.P. | 1.13% | 1,315,501 | $393,005,924 | $419,592,199 | +$26,586,275 | +6.76% | |
| Geode Capital Management, Llc | 0.02% | 1,129,240 | $337,431,069 | $360,182,390 | +$22,751,321 | +6.74% | |
| Clearbridge Investments, Llc | 0.28% | 1,126,744 | $336,614,659 | $359,386,266 | +$22,771,607 | +6.76% | |
| First Trust Advisors Lp | 0.17% | 993,170 | $296,709,537 | $316,781,503 | +$20,071,966 | +6.76% | |
| Snyder Capital Management L P | 4.76% | 922,182 | $275,501,872 | $294,139,171 | +$18,637,299 | +6.76% | |
| Goldman Sachs Group Inc | 0.03% | 900,225 | $268,942,164 | $287,135,766 | +$18,193,602 | +6.76% | |
| Durable Capital Partners | Henry Ellenbogen | 2.59% | 892,405 | $266,605,994 | $284,641,499 | +$18,035,505 | +6.76% |
| Fil Ltd | 0.19% | 877,433 | $262,133,109 | $279,866,030 | +$17,732,921 | +6.76% | |
| Bessemer Group Inc | 0.31% | 763,028 | $227,954,000 | $243,375,411 | +$15,421,411 | +6.77% | |
| Select Equity Group, L.P. | 1.15% | 728,374 | $217,601,732 | $232,322,171 | +$14,720,439 | +6.76% | |
| Norges Bank | 0.02% | 632,096 | $188,838,680 | $201,613,340 | +$12,774,660 | +6.76% | |
| Pictet Asset Management Holding Sa | 0.17% | 608,808 | $181,887,717 | $194,185,400 | +$12,297,683 | +6.76% | |
| Dimensional Fund Advisors Lp | 0.03% | 606,181 | $181,101,941 | $193,347,492 | +$12,245,551 | +6.76% | |
| Nordea Investment Management Ab | 0.13% | 526,178 | $157,148,322 | $167,829,735 | +$10,681,413 | +6.80% | |
| Hood River Capital Management Llc | 1.08% | 498,747 | $149,000,666 | $159,080,343 | +$10,079,677 | +6.76% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.03% | 517,561 | $148,400,267 | $165,081,257 | +$16,680,990 | +11.24% | |
| Aqr Capital Management Llc | 0.05% | 478,075 | $142,824,964 | $152,486,802 | +$9,661,838 | +6.76% | |
| Bank Of America Corp | 0.01% | 477,994 | $142,800,709 | $152,460,966 | +$9,660,257 | +6.76% | |
| Charles Schwab Investment Management Inc | 0.02% | 473,991 | $141,604,812 | $151,184,169 | +$9,579,357 | +6.76% | |
| Northern Trust Corp | 0.02% | 455,688 | $136,136,790 | $145,346,244 | +$9,209,454 | +6.76% | |
| Invesco Ltd. | 0.01% | 450,801 | $134,676,800 | $143,787,487 | +$9,110,687 | +6.76% | |
| T. Rowe Price Investment Management, Inc. | 0.09% | 441,280 | $131,833,000 | $140,750,669 | +$8,917,669 | +6.76% | |
| Two Sigma Investments, Lp | 0.10% | 423,106 | $126,402,918 | $134,953,890 | +$8,550,972 | +6.76% | |
| William Blair Investment Management, Llc | 0.38% | 419,210 | $125,238,988 | $133,711,222 | +$8,472,234 | +6.76% | |
| Bank Of New York Mellon Corp | 0.02% | 354,685 | $105,962,056 | $113,130,328 | +$7,168,272 | +6.76% | |
| Quantinno Capital Management Lp | 0.12% | 342,589 | $102,348,586 | $109,272,187 | +$6,923,601 | +6.76% | |
| Vaughan Nelson Investment Management, L.P. | 0.90% | 342,420 | $102,297,975 | $109,218,283 | +$6,920,308 | +6.76% | |
| Citadel Advisors Llc | 0.05% | 314,347 | $93,911,167 | $100,264,119 | +$6,352,952 | +6.76% | |
| Vanguard Fiduciary Trust Co | 0.02% | 314,047 | $93,821,541 | $100,168,431 | +$6,346,890 | +6.76% | |
| Steadfast Capital Management Lp | 2.77% | 302,091 | $90,249,686 | $96,354,945 | +$6,105,259 | +6.76% | |
| Davenport & Co Llc | 0.45% | 293,384 | $87,805,558 | $93,577,761 | +$5,772,203 | +6.57% | |
| Morgan Stanley | 0.00% | 280,859 | $83,907,447 | $89,582,787 | +$5,675,340 | +6.76% | |
| M.D. Sass, Llc | 5.35% | 270,507 | $80,813,966 | $86,280,913 | +$5,466,947 | +6.76% | |
| Westfield Capital Management Co Lp | 0.26% | 268,348 | $80,168,965 | $85,592,278 | +$5,423,313 | +6.76% | |
| Jane Street Group, Llc | 0.05% | 258,710 | $77,289,613 | $82,518,142 | +$5,228,529 | +6.76% | |
| Qube Research & Technologies Ltd | 0.08% | 247,078 | $73,814,553 | $78,807,999 | +$4,993,446 | +6.76% | |
| Silvercrest Asset Management Group Llc | 0.46% | 234,409 | $70,030,134 | $74,767,095 | +$4,736,961 | +6.76% | |
| Neuberger Berman Group Llc | 0.04% | 220,828 | $65,991,719 | $70,435,299 | +$4,443,580 | +6.73% | |
| Jpmorgan Chase & Co | 0.00% | 209,377 | $63,472,071 | $66,782,888 | +$3,310,817 | +5.22% | |
| Holocene Advisors, Lp | 0.14% | 211,217 | $63,101,079 | $67,369,774 | +$4,268,695 | +6.76% | |
| Dekabank Deutsche Girozentrale | 0.09% | 180,000 | $50,696,000 | $57,412,800 | +$6,716,800 | +13.25% | |
| Raymond James Financial Inc | 0.01% | 167,826 | $50,138,028 | $53,529,781 | +$3,391,753 | +6.76% | |
| 12Th Street Asset Management Company, Llc | 7.09% | 166,534 | $49,752,025 | $53,117,685 | +$3,365,660 | +6.76% |
Frequently asked questions about CLH
Who owns the most CLH stock?
The largest holders of CLH are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CLEAN HARBORS INC (CLH).
Is CLH widely held by superinvestors?
Many widely followed stocks like CLH appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CLH is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.