Latest Period
Q1 2026
Security Snapshot
CLEAN HARBORS INC - Common Stock, par value $0.01 per share (CLH) Institutional Ownership
CUSIP: 184496107
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
619
Shares (Excl. Options)
49,324,544
Price
$286.73
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- Type / Class
- Equity / Common Stock, par value $0.01 per share
- Symbol
- CLH on NYSE
- Shares outstanding
- 53,531,240
- Price per share
- $312.68
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 49,324,544
- Total reported value
- $14,131,041,556
- % of total 13F portfolios
- 0.03%
- Share change
- -2,136,998
- Value change
- -$511,690,476
- Number of holders
- 619
- Price from insider filings
- $312.68
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- CLH - CLEAN HARBORS INC - Common Stock, par value $0.01 per share is tracked under CUSIP 184496107.
- 619 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 564 to 619 between Q4 2025 and Q1 2026.
- Reported value moved from $12,069,486,227 to $14,131,041,556.
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
Open SEC Evidence
Latest holder context comes from 619 institutions filings for Q1 2026.
Security key
184496107
Latest holder period
Q1 2026
13F holders
619
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
CLH full holder history
CLEAN HARBORS INC SEC filings
CLEAN HARBORS INC company facts
CLEAN HARBORS INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 184496107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
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 |
| 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 31 Mar 2026, 619 institutional investors reported holding 49,324,544 shares of CLEAN HARBORS INC - Common Stock, par value $0.01 per share (CLH). This represents 92% of the company’s total 53,531,240 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
65%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9% | 4,802,492 | +4.4% | 0.02% | $1,377,018,670 |
| WELLINGTON MANAGEMENT GROUP LLP | 6.7% | 3,577,034 | -31% | 0.19% | $1,025,642,960 |
| JANUS HENDERSON GROUP PLC | 4.4% | 2,355,394 | -0.87% | 0.32% | $675,367,739 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1% | 2,169,364 | 0% | 0.02% | $622,021,740 |
| FMR LLC | 3.9% | 2,101,179 | +465% | 0.03% | $602,471,093 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.7% | 1,962,951 | 0% | 0.03% | $562,836,940 |
| LONE PINE CAPITAL LLC | 3.3% | 1,754,950 | +27% | 4% | $503,196,814 |
| STATE STREET CORP | 2.9% | 1,537,297 | +2.3% | 0.02% | $440,789,169 |
| D1 Capital Partners L.P. | 2.5% | 1,338,281 | -52% | 3.4% | $383,725,311 |
| Pictet Asset Management Holding SA | 2.3% | 1,242,142 | -34% | 0.38% | $356,087,229 |
| Clearbridge Investments, LLC | 2.2% | 1,202,777 | -9.5% | 0.3% | $344,872,163 |
| Select Equity Group, L.P. | 2.1% | 1,131,602 | +33% | 1.7% | $324,464,241 |
| Durable Capital Partners LP | 2% | 1,050,973 | +26% | 3.1% | $301,345,488 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 945,892 | +3.1% | 0.02% | $271,278,985 |
| BESSEMER GROUP INC | 1.7% | 932,027 | +1.8% | 0.42% | $267,239,000 |
| SNYDER CAPITAL MANAGEMENT L P | 1.7% | 929,327 | -19% | 5.2% | $266,465,931 |
| GOLDMAN SACHS GROUP INC | 1.7% | 929,077 | +258% | 0.04% | $266,394,248 |
| FIRST TRUST ADVISORS LP | 1.5% | 778,441 | +10% | 0.16% | $223,202,387 |
| TWO SIGMA INVESTMENTS, LP | 1.4% | 724,028 | +47% | 0.17% | $207,600,548 |
| DIMENSIONAL FUND ADVISORS LP | 1.1% | 608,709 | -1.8% | 0.04% | $174,515,664 |
| NORDEA INVESTMENT MANAGEMENT AB | 1.1% | 568,408 | -45% | 0.15% | $159,296,343 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.97% | 517,561 | -13% | 0.03% | $148,400,267 |
| FIL Ltd | 0.95% | 509,679 | +45% | 0.11% | $146,140,259 |
| T. Rowe Price Investment Management, Inc. | 0.89% | 477,287 | +1300% | 0.09% | $136,853,000 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.89% | 474,647 | -0.58% | 0.02% | $136,095,534 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 49,324,544 | $14,131,041,556 | -$511,690,476 | $286.73 | 619 |
| 2025 Q4 | 51,464,355 | $12,069,486,227 | +$397,685,796 | $234.48 | 564 |
| 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 |
| 2020 Q2 | 50,347,632 | $3,016,535,526 | -$19,174,887 | $59.98 | 253 |
| 2020 Q1 | 50,832,653 | $2,607,503,446 | -$37,137,106 | $51.34 | 254 |
| 2019 Q4 | 50,947,518 | $4,367,657,829 | -$14,886,374 | $85.75 | 280 |
| 2019 Q3 | 50,955,299 | $3,932,906,321 | +$9,028,777 | $77.20 | 268 |
| 2019 Q2 | 51,128,515 | $3,634,936,185 | -$57,557,785 | $71.10 | 262 |
| 2019 Q1 | 52,052,023 | $3,723,210,866 | +$48,184,892 | $71.53 | 300 |
| 2018 Q4 | 51,872,847 | $2,560,578,895 | -$58,156,470 | $49.35 | 277 |
| 2018 Q3 | 52,145,415 | $3,731,772,860 | -$12,306,420 | $71.58 | 268 |
| 2018 Q2 | 53,255,066 | $2,957,213,315 | -$9,181,784 | $55.55 | 240 |
| 2018 Q1 | 53,430,070 | $2,607,875,501 | +$20,845,477 | $48.81 | 235 |
| 2017 Q4 | 52,891,164 | $2,867,280,141 | -$15,861,691 | $54.20 | 244 |
| 2017 Q3 | 53,064,619 | $3,008,128,935 | -$58,656,278 | $56.70 | 230 |
| 2017 Q2 | 54,143,321 | $3,022,839,658 | -$881,218 | $55.83 | 231 |
| 2017 Q1 | 55,202,582 | $3,071,343,453 | +$251,877,684 | $55.62 | 230 |
| 2016 Q4 | 54,728,698 | $3,045,153,512 | +$31,762,063 | $55.65 | 233 |
| 2016 Q3 | 54,170,225 | $2,598,076,249 | +$10,656,238 | $47.98 | 217 |
| 2016 Q2 | 55,270,537 | $2,879,997,327 | -$24,480,967 | $52.11 | 233 |
| 2016 Q1 | 55,768,951 | $2,751,313,579 | -$41,844,583 | $49.34 | 221 |
| 2015 Q4 | 56,321,618 | $2,345,911,399 | -$58,398,547 | $41.65 | 233 |
| 2015 Q3 | 57,730,725 | $2,538,445,657 | +$50,327,185 | $43.97 | 245 |
| 2015 Q2 | 56,576,417 | $3,036,418,868 | -$99,266,624 | $53.74 | 246 |
| 2015 Q1 | 58,217,117 | $3,302,267,691 | -$111,272,543 | $56.78 | 254 |
| 2014 Q4 | 60,529,643 | $2,908,922,072 | +$198,562,526 | $48.05 | 245 |
| 2014 Q3 | 55,574,059 | $2,996,547,365 | -$136,500,558 | $53.92 | 246 |
| 2014 Q2 | 57,864,613 | $3,713,894,697 | -$135,613,241 | $64.25 | 234 |
| 2014 Q1 | 60,434,317 | $3,314,327,278 | +$114,406,008 | $54.79 | 247 |