Security Snapshot

CLEAN HARBORS INC - COMMON STOCK (CLH) Institutional Ownership

CUSIP: 184496107

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q2 2026

Institutions Reporting

661

Shares (Excl. Options)

49.44MFull value: 49,442,727 · shares · 30 Jun 2026

Price

$298.75

The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.

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Latest holder snapshot 5 signals
Portfolio coverage rank
0.01%
Share change
+799,340
Value change
+$265,377,523
Number of holders
661
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
52,678,144
SEC-reported price per share
$310.23
Insider filing price
$310.23
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • CLH - CLEAN HARBORS INC - COMMON STOCK is tracked under CUSIP 184496107.
  • 661 institutions reported positions in Q2 2026.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 625 to 661 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from
    $14.16BFull value: $14,163,250,455 · USD · 31 Mar 2026
    to
    $14.77BFull value: $14,767,983,697 · USD · 30 Jun 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 661 institutions filings for Q2 2026.

Open SEC evidence

Security key

184496107

13F reference period

Q2 2026

13F holders

661

13D/G owners

3

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
3
Security
CLH
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
WELLINGTON MANAGEMENT GROUP LLP 6.8% -29% $1,062,090,414 -$477,123,372 3,576,062 -31% Wellington Management Group LLP 31 Mar 2026
FMR LLC 5.7% $897,042,936 3,002,654 FMR LLC 30 Jun 2026
D1 Capital Partners L.P. 2.5% -54% $397,469,457 -$428,749,497 1,338,281 -52% D1 Capital Partners L.P. 31 Mar 2026
As of 30 Jun 2026, 661 institutional investors reported holding
49.44MFull value: 49,442,727 · shares · 30 Jun 2026
shares of CLEAN HARBORS INC - COMMON STOCK (CLH). This represents 94% of the company’s total
52.68MFull value: 52,678,144 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
62%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 9.6% 5,076,220 +5.7% 0.02% $1,516,520,650
WELLINGTON MANAGEMENT GROUP LLP 6% 3,155,233 -12% 0.16% $942,625,861
FMR LLC 5.7% 3,002,654 +43% 0.04% $897,042,939
VANGUARD CAPITAL MANAGEMENT LLC 4.1% 2,182,972 +0.63% 0.01% $652,162,885
VANGUARD PORTFOLIO MANAGEMENT LLC 3.8% 1,983,336 +1% 0.03% $592,521,630
Jupiter Topco LLC 3% 1,598,574 0% 0.19% $477,570,130
STATE STREET CORP 3% 1,582,004 +2.9% 0.01% $472,623,695
D1 Capital Partners L.P. 2.5% 1,315,501 -1.7% 1.1% $393,005,924
GEODE CAPITAL MANAGEMENT, LLC 2.1% 1,129,240 +19% 0.02% $337,431,069
Clearbridge Investments, LLC 2.1% 1,126,744 -6.3% 0.28% $336,614,659
FIRST TRUST ADVISORS LP 1.9% 993,170 +28% 0.17% $296,709,537
SNYDER CAPITAL MANAGEMENT L P 1.8% 922,182 -0.77% 4.8% $275,501,872
GOLDMAN SACHS GROUP INC 1.7% 900,225 -3.1% 0.03% $268,942,164
Durable Capital Partners LP 1.7% 892,405 -15% 2.6% $266,605,994
FIL Ltd 1.7% 877,433 +72% 0.19% $262,133,109
BESSEMER GROUP INC 1.4% 763,028 -18% 0.31% $227,954,000
Select Equity Group, L.P. 1.4% 728,374 -36% 1.2% $217,601,732
NORGES BANK 1.2% 632,096 0.02% $188,838,680
Pictet Asset Management Holding SA 1.2% 608,808 -51% 0.17% $181,887,717
DIMENSIONAL FUND ADVISORS LP 1.2% 606,181 -0.42% 0.03% $181,101,941
NORDEA INVESTMENT MANAGEMENT AB 1% 526,178 -7.4% 0.13% $157,148,322
Hood River Capital Management LLC 0.95% 498,747 +301% 1.1% $149,000,666
AQR CAPITAL MANAGEMENT LLC 0.91% 478,075 +165% 0.05% $142,824,964
BANK OF AMERICA CORP /DE/ 0.91% 477,994 +53% 0.01% $142,800,709
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.9% 473,991 -0.14% 0.02% $141,604,812

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 1,721,311 $534,012,412 +$21,212,967 $310.23 157
2026 Q2 49,442,727 $14,767,983,697 +$265,377,523 $298.75 661
2026 Q1 49,436,876 $14,163,250,455 -$493,658,223 $286.73 625
2025 Q4 51,464,466 $12,069,512,254 +$397,685,796 $234.48 565
2025 Q3 49,632,424 $11,524,358,221 +$129,240,631 $232.22 564
2025 Q2 49,057,832 $11,339,936,357 +$220,546,953 $231.18 571
2025 Q1 48,132,713 $9,486,829,339 -$267,757,681 $197.10 556
2024 Q4 49,190,576 $11,318,675,533 +$262,256,723 $230.14 567
2024 Q3 47,645,714 $11,518,201,197 -$206,440,377 $241.71 566
2024 Q2 48,462,273 $10,957,194,185 +$163,917,548 $226.15 513
2024 Q1 48,028,810 $9,663,527,003 -$104,220,625 $201.31 477
2023 Q4 48,670,730 $8,502,369,212 -$199,827,249 $174.51 445
2023 Q3 49,703,918 $8,313,963,340 -$68,694,826 $167.36 419
2023 Q2 49,656,143 $8,161,174,373 +$237,225,509 $164.43 413
2023 Q1 48,307,745 $6,880,790,330 +$54,397,810 $142.56 400
2022 Q4 48,270,800 $5,508,677,363 -$63,156,655 $114.12 375
2022 Q3 48,574,843 $5,341,928,254 +$12,636,177 $109.98 356
2022 Q2 48,269,640 $4,230,699,322 +$32,684,062 $87.67 329
2022 Q1 48,204,450 $5,379,590,380 -$13,775,879 $111.64 339
2021 Q4 47,919,689 $4,777,947,706 +$24,888,646 $99.77 323
2021 Q3 48,325,318 $5,019,606,329 +$19,323,880 $103.87 302
2021 Q2 48,163,931 $4,480,710,313 +$48,314,011 $93.14 279
2021 Q1 48,456,862 $4,073,879,610 -$14,134,004 $84.06 286
2020 Q4 48,654,363 $3,703,552,932 -$27,912,119 $76.10 266
2020 Q3 49,215,521 $2,757,664,232 -$66,196,569 $56.03 244
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