Stocks › CLH
CLEAN HARBORS INC
CLH·NYSE·
United States·USD
United States·USD$318.06
-4.31 (-1.34%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
CLH
CLEAN HARBORS INC · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
CLHS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of CLH by members of U.S. Congress · 16 on record · 8 in the last 12 months
Whale Activity
Position changes in CLH reported for 2026-06-30 by 13 tracked institutional filers
- Increased5
- New1
- Held0
- Decreased2
- Closed1
- No prior filing4
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 5.1M | $1.52B | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $652.2M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.0M | $592.5M | increased |
| SNYDER CAPITAL MANAGEMENT L P | 922.2K | $275.5M | — |
| TWO SIGMA INVESTMENTS, LP | 423.1K | $126.4M | decreased |
| CITADEL ADVISORS LLC | 314.3K | $93.9M | increased |
| Point72 Asset Management, L.P. | 105.1K | $31.4M | increased |
| RENAISSANCE TECHNOLOGIES LLC | 82.2K | $24.6M | new |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 70.1K | $20.9M | — |
| GCM Grosvenor Holdings, LLC | 53.8K | $16.1M | — |
| D. E. Shaw & Co., Inc. | 16.8K | $5.0M | decreased |
| Bullseye Asset Management LLC | 26.0K | $8K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by CLH insiders, by quarter · Form 4
Recent Insider Transactions
1,980 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| GERSTENBERG ERIC WCO-CEO | Sale | −2,500 | $321.34 | $803K | Aug 14, 2026 | Form 4 ↗ |
| Robertson AndreaDirector · Director | Sale | −789 | $314.01 | $248K | Aug 3, 2026 | Form 4 ↗ |
| Diderich JeroenEVP&President of Sales&Service | Tax withholding | −1,717 | $281.00 | $482K | Jun 1, 2026 | Form 4 ↗ |
| States LaurenDirector | Sale | −789 | $286.19 | $226K | May 26, 2026 | Form 4 ↗ |
| Polito KarynDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Reed Marcy L.Director | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| States LaurenDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Welch John R.Director | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Quirk Alison A.Director | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Stewart Shelley JRDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Willett RobertDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Robertson AndreaDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| GALANTE EDWARD GDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| PRESTON JOHN TDirector | Grant / award | +652 | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Polito KarynDirector | Purchase Amended | +460 | $295.13 | $136K | May 11, 2026 | Form 4 ↗ |
| Polito KarynDirector | Grant / award | +460 | $295.13 | $136K | May 11, 2026 | Form 4 ↗ |
| Robertson AndreaDirector | Gift | −342 | $0.00 | $0 | May 11, 2026 | Form 4 ↗ |
| GERSTENBERG ERIC WCO-CEO | Sale Amended | −1,000 | $293.00 | $293K | Mar 18, 2026 | Form 4 ↗ |
| Reed Marcy L.Director | Sale | −836 | $287.94 | $241K | Mar 18, 2026 | Form 4 ↗ |
| GERSTENBERG ERIC WCO-CEO | Sale | −1,000 | $293.00 | $293K | Mar 18, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding CLH · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF iShares Trust | 1.7M | $507.9M | 0.41% | Jun 30, 2026 |
| Fidelity Contrafund | 1.6M | $482.2M | 0.27% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.5M | $451.3M | 0.02% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.1M | $325.8M | 0.17% | Jun 30, 2026 |
| First Trust RBA American Industrial Renaissance ETF First Trust Exchange-Traded Fund VI | 937.2K | $280.0M | 2.44% | Jun 30, 2026 |
| Janus Henderson Enterprise Fund Janus Investment Fund | 867.6K | $259.2M | 1.16% | Jun 30, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 629.2K | $188.0M | 0.40% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 569.5K | $170.1M | 0.17% | Jun 30, 2026 |
| VANGUARD EXPLORER FUND | 377.1K | $118.0M | 0.53% | Jul 31, 2026 |
| State Street SPDR S&P MidCap 400SM ETF Trust SPDR S&P MIDCAP 400 ETF TRUST | 382.2K | $114.2M | 0.41% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list CLH's shares (CUSIP 184496107), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Abigail P. JohnsonSCHEDULE 13G · passive (13G) · 3.0M shares5.7%
Aug 6, 2026 · ↗ - FMR LLCSCHEDULE 13G · passive (13G) · 3.0M shares5.7%
Aug 6, 2026 · ↗ - Daniel SundheimSCHEDULE 13G/A · passive (13G) · 1.3M shares2.5%
May 15, 2026 · ↗ - D1 Capital Partners L.P.SCHEDULE 13G/A · passive (13G) · 1.3M shares2.5%
May 15, 2026 · ↗ - Wellington Management Company LLPSCHEDULE 13G/A · passive (13G) · 3.6M shares5.5%
May 15, 2026 · ↗ - Wellington Investment Advisors Holdings LLPSCHEDULE 13G/A · passive (13G) · 3.6M shares6.8%
May 15, 2026 · ↗ - Wellington Group Holdings LLPSCHEDULE 13G/A · passive (13G) · 3.6M shares6.8%
May 15, 2026 · ↗ - Wellington Management Group LLPSCHEDULE 13G/A · passive (13G) · 3.6M shares6.8%
May 15, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming clean harbors as client
- SQUIRE PATTON BOGGSCLEAN HARBORS, INC. · 2026 Q2 · ENV$90K
Filing ↗ - SQUIRE PATTON BOGGSCLEAN HARBORS, INC. · 2026 Q1 · AVI, ENV$90K
Filing ↗ - SQUIRE PATTON BOGGSCLEAN HARBORS, INC. · 2025 Q4 · AVI, ENV$90K
Filing ↗ - SQUIRE PATTON BOGGSCLEAN HARBORS, INC. · 2025 Q3 · AVI, ENV$90K
Filing ↗ - SQUIRE PATTON BOGGSCLEAN HARBORS, INC. · 2025 Q2 · AVI, ENV$90K
Filing ↗
Government Contracts
Federal awards to clean harbors · USAspending
$15.1MAwarded · 106 contracts on record
- Department of Defense8511740141!NR01C6$6K
Nov 5, 2025 · ↗ - Department of Defense8512157796!TX99C7$4K
Jun 3, 2026 · ↗ - Department of Defense8511743344!TX16C4$20K
Nov 6, 2025 · ↗ - Department of Defense8511745413!RX01C7$1K
Nov 7, 2025 · ↗ - Department of Defense8512192593!NON-RCRA LIQUIDS/SLUDGES/SOLI$6K
Jun 18, 2026 · ↗ - Department of TransportationREMOVAL, TRANSPORTATION, AND DISPOSAL OF DRUMS CONTAINING INVESTIGATION-DERIVED WASTE FROM 495 DORCHESTER AVENUE, BOSTON, MA.$38K
Sep 29, 2026 · ↗ - Department of AgricultureHAZARDOUS WASTE REMOVAL$31K
Sep 30, 2026 · ↗ - Department of AgricultureDISPOSE INCINERATOR ASH.$23K
Sep 29, 2026 · ↗
U.S. Patents
Recent USPTO applications naming CLEAN HARBORS INC
No USPTO patent applications found for CLEAN HARBORS INC.
Annual Financials
From CLH's 10-K filings · XBRL
No annual XBRL figures on record for CLH. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 2-for-1Stock splitJul 27, 2011
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 1.01, 2.03, 8.01, 9.01Material agreement · Direct financial obligation · Other eventsOct 5, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsSep 18, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsAug 12, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsJul 29, 2026
EDGAR ↗ - 8-K · Items 5.07, 9.01Shareholder voteMay 20, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureMay 20, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsMay 14, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsMay 6, 2026
EDGAR ↗
About CLEAN HARBORS INC
From SEC EDGAR company records
Industry (SIC 4955)Hazardous Waste Management
SectorUtilities
HeadquartersNORWELL, MA
IncorporatedMA
SEC CIK0000822818 ↗