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Clean Harbors Inc

CLH
Exchange
NYSE
Industry
Hazardous Waste Management
SEC CIK
0000822818

In the last 90 days, Clean Harbors Inc insiders filed 0 open-market purchases and 5 sales; 663 institutions reported holding it in 13F filings for Q2 2026, worth $14.8B in total; D1 Capital Partners is the only superinvestor holding it.

13F holders, Q1 2026

Institutional positions in Clean Harbors Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
626
+66 vs. Q4 2025
Shares held
49.3M
+3.03M (+6.5%) vs. Q4 2025
Total value
$14.1B
+$3.28B (+30.2%) vs. Q4 2025
New holders
115
211 more added
Sold out
49
197 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CLH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 626 institutions
Q1 2021: 289 institutionsQ2 2021: 286 institutionsQ3 2021: 309 institutionsQ4 2021: 327 institutionsQ1 2022: 345 institutionsQ2 2022: 337 institutionsQ3 2022: 369 institutionsQ4 2022: 380 institutionsQ1 2023: 405 institutionsQ2 2023: 417 institutionsQ3 2023: 421 institutionsQ4 2023: 450 institutionsQ1 2024: 481 institutionsQ2 2024: 518 institutionsQ3 2024: 572 institutionsQ4 2024: 573 institutionsQ1 2025: 563 institutionsQ2 2025: 579 institutionsQ3 2025: 569 institutionsQ4 2025: 568 institutionsQ1 2026: 626 institutionsQ2 2026: 663 institutions
Value heldQ1 2026: $14.1B
Q1 2021: $4.07BQ2 2021: $4.48BQ3 2021: $5.02BQ4 2021: $4.78BQ1 2022: $5.38BQ2 2022: $4.23BQ3 2022: $5.31BQ4 2022: $5.49BQ1 2023: $6.88BQ2 2023: $8.16BQ3 2023: $8.31BQ4 2023: $8.50BQ1 2024: $9.67BQ2 2024: $10.9BQ3 2024: $11.5BQ4 2024: $11.3BQ1 2025: $9.61BQ2 2025: $11.4BQ3 2025: $11.6BQ4 2025: $12.1BQ1 2026: $14.1BQ2 2026: $14.8B
Institutions holding CLH and their total value by quarter
QuarterHoldersValue
Q2 2026663$14.8B
Q1 2026626$14.1B
Q4 2025568$12.1B
Q3 2025569$11.6B
Q2 2025579$11.4B
Q1 2025563$9.61B
Q4 2024573$11.3B
Q3 2024572$11.5B
Q2 2024518$10.9B
Q1 2024481$9.67B
Q4 2023450$8.50B
Q3 2023421$8.31B
Q2 2023417$8.16B
Q1 2023405$6.88B
Q4 2022380$5.49B
Q3 2022369$5.31B
Q2 2022337$4.23B
Q1 2022345$5.38B
Q4 2021327$4.78B
Q3 2021309$5.02B
Q2 2021286$4.48B
Q1 2021289$4.07B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Clean Harbors Inc; share changes are against Q4 2025.

Institutions holding CLH in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
True Wealth Design, LLC177$50.8K0.01%+25+16.4%Added
Central Trust Co182$52.2K0.00%−11−5.7%Reduced
Golden State Wealth Management, LLC184$52.8K0.01%00.0%Unchanged
Essex Investment Management Co LLC193$55.3K0.01%00.0%Unchanged
SJS Investment Consulting Inc.195$55.9K0.01%−25−11.4%Reduced
First Horizon Corp202$57.9K0.00%+6+3.1%Added
Community Financial Services Group, LLC200$58.0K0.01%+200New
Pekao Towarzystwo Funduszy Inwestycyjnych S.A.216$61.9K0.05%−592−73.3%Reduced
TD Private Client Wealth LLC218$62.5K0.00%−76−25.9%Reduced
Los Angeles Capital Management LLC221$63.4K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.224$64.1K0.00%−8−3.4%Reduced
Nomura Asset Management Co Ltd230$65.9K0.00%00.0%Unchanged
Smartleaf Asset Management LLC238$66.6K0.00%−63−20.9%Reduced
UMA Financial Services, Inc.241$69.1K0.01%00.0%Unchanged
Root Financial Partners, LLC241$69.1K0.00%+120+99.2%Added
Parallel Advisors, LLC281$80.6K0.00%+18+6.8%Added
Larson Financial Group LLC288$82.6K0.00%+156+118.2%Added
Parkside Financial Bank & Trust318$91.2K0.01%+199+167.2%Added
Indiana Trust & Investment Management CO330$94.6K0.03%00.0%Unchanged
Stephenson National Bank & Trust338$96.9K0.03%−45−11.7%Reduced
Vega Investment Solutions404$115.8K0.03%00.0%Unchanged
Cedar Mountain Advisors, LLC405$116.1K0.02%+405New
Rialto Wealth Management, LLC406$116.4K0.03%+2+0.5%Added
Assetmark, Inc430$123.3K0.00%+35+8.9%Added
Aster Capital Management (DIFC) Ltd628$123.8K0.04%+628New
CoreCap Advisors, LLC442$126.7K0.00%+318+256.5%Added
Evelyn Partners Investment Management LLP460$131.9K0.00%00.0%Unchanged
DecisionPoint Financial, LLC465$133.3K0.03%00.0%Unchanged
Brown Brothers Harriman & Co504$144.5K0.00%00.0%Unchanged
Central Pacific Bank - Trust Division520$149.1K0.02%−120−18.8%Reduced
Avanza Fonder AB534$153.1K0.00%−434−44.8%Reduced
NBT Bank N A542$155.4K0.01%00.0%Unchanged
Kemnay Advisory Services Inc.554$158.8K0.03%+554New
Quarry LP555$159.1K0.03%+106+23.6%Added
US Bancorp569$163.2K0.00%+187+49.0%Added
Sittner & Nelson, LLC576$165.2K0.06%+576New
Colonial Trust Co600$172.0K0.02%00.0%Unchanged
Allworth Financial LP639$183.2K0.00%+161+33.7%Added
Armstrong Advisory Group, Inc642$184.1K0.01%00.0%Unchanged
Signaturefd, LLC668$191.5K0.00%−82−10.9%Reduced
Simplex Trading, LLC685$196.4K0.01%+503+276.4%Added
Covestor Ltd686$197.0K0.14%+626+1,043.3%Added
MAI Capital Management690$197.8K0.00%+404+141.3%Added
Rafferty Asset Management, LLC708$203.0K0.00%+708New
Vise Technologies, Inc.888$208.2K0.00%00.0%Unchanged
Miracle Mile Advisors, LLC759$217.6K0.00%+759New
Ballentine Partners, LLC764$219.1K0.00%+764New
Wulff, Hansen & Co.768$220.2K0.22%+768New
Wedbush Securities Inc782$224.0K0.01%−218−21.8%Reduced
Quent Capital, LLC782$224.2K0.02%+1+0.1%Added
49 Wealth Management, LLC783$224.5K0.02%+783New
Sequoia Financial Advisors, LLC791$226.8K0.00%−1,109−58.4%Reduced
Pensionmark Financial Group, LLC799$229.1K0.00%+799New
Jump Financial, LLC809$232.0K0.00%+809New
Wedmont Private Capital784$237.2K0.01%+784New
Equitable Holdings, Inc.829$237.7K0.00%+829New
Whittier Trust Co800$239.7K0.00%00.0%Unchanged
D.A. Davidson & Co.840$240.9K0.00%−65−7.2%Reduced
Pinnacle Financial Partners, Inc.855$245.2K0.00%−2−0.2%Reduced
CIBC Bancorp USA Inc.859$246.3K0.00%+859New
Edgestream Partners, L.P.869$249.2K0.01%+869New
NBC Securities, Inc.873$250.3K0.02%−299−25.5%Reduced
Verus Capital Partners, LLC886$254.0K0.02%+886New
Van Hulzen Asset Management, LLC897$257.2K0.02%00.0%Unchanged
Sky Investment Group LLC900$258.1K0.04%00.0%Unchanged
First National Advisers, LLC900$258.1K0.04%00.0%Unchanged
VestGen Advisors, LLC872$258.5K0.01%+872New
CIBC World Markets Inc.938$269.0K0.00%+23+2.5%Added
Sigma Planning Corp944$270.7K0.01%00.0%Unchanged
QRG Capital Management, Inc.948$271.8K0.00%+948New
Independent Financial Group, LLC949$272.1K0.01%00.0%Unchanged
U.S. Capital Wealth Advisors, LLC949$272.1K0.01%+949New
Northwestern Mutual Wealth Management Co955$273.8K0.00%+133+16.2%Added
Savant Capital, LLC957$274.4K0.00%+957New
World Equity Group, Inc.962$275.8K0.07%+962New
Sowell Financial Services LLC963$276.1K0.01%+4+0.4%Added
Brown Financial Advisors964$276.4K0.10%+964New
Mattson Financial Services, LLC971$278.4K0.07%+971New
Meridian Wealth Management, LLC981$281.3K0.01%00.0%Unchanged
Altar Rock LLC988$283.3K0.33%−112−10.2%Reduced
Platform Technology Partners989$283.6K0.05%+989New
Claret Asset Management Corp991$284.0K0.03%00.0%Unchanged
NTV Asset Management LLC1,000$286.7K0.03%00.0%Unchanged
Capital Investment Counsel, Inc1,000$286.7K0.04%00.0%Unchanged
WealthBridge Capital Management, LLC1,032$295.9K0.07%−10−1.0%Reduced
Sagespring Wealth Partners, LLC1,038$297.6K0.01%+32+3.2%Added
Acorn Wealth Advisors, LLC1,043$299.1K0.09%+36+3.6%Added
Moody Aldrich Partners LLC1,057$303.1K0.05%−262−19.9%Reduced
Kathmere Capital Management, LLC1,064$305.1K0.02%+1+0.1%Added
DRW Securities, LLC1,071$307.1K0.02%+1,071New
LGT Group Foundation1,075$308.2K0.00%00.0%Unchanged
Profund Advisors LLC1,090$312.5K0.01%+20+1.9%Added
Equitable Trust Co1,100$315.4K0.01%00.0%Unchanged
Colton Groome Financial Advisors, LLC1,100$315.4K0.09%00.0%Unchanged
BBR Partners, LLC1,105$316.8K0.02%+1,105New
SRS Capital Advisors, Inc.1,110$318.3K0.01%−440−28.4%Reduced
Independent Advisor Alliance1,124$322.3K0.00%+61+5.7%Added
Two Sigma Securities, LLC1,151$330.0K0.04%+1,151New
Meiji Yasuda Asset Management Co Ltd.1,159$332.3K0.02%+6+0.5%Added
Sumitomo Mitsui Trust Holdings, Inc.1,160$332.6K0.00%00.0%Unchanged