Clean Harbors Ownership | Who Owns Clean Harbors?
Clean Harbors Ownership Summary
Clean Harbors is owned by 94.24% institutional investors, 4.93% insiders, and 0.83% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.61% of CLH shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.23% of its assets in Clean Harbors shares.
CLH Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Clean Harbors | 94.24% | 4.93% | 0.83% |
| Sector | Industrials Stocks | 65.73% | 16.65% | 17.62% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 5.08M | 9.61% | $1.52B |
| Blackrock | 4.54M | 8.43% | $1.03B |
| Vanguard group | 4.49M | 8.39% | $1.05B |
| Wellington management group llp | 3.16M | 5.97% | $942.63M |
| Fmr | 3.00M | 5.68% | $897.04M |
| Janus henderson group | 2.36M | 4.43% | $675.37M |
| Vanguard capital management | 2.18M | 4.13% | $652.16M |
| State street | 1.58M | 3.00% | $472.62M |
| D1 capital partners | 1.32M | 2.49% | $393.01M |
| Geode capital management | 1.13M | 2.14% | $337.43M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Visualize group lp | 96.30K | 9.90% | $28.77M |
| 12th street asset management company | 166.53K | 7.09% | $49.75M |
| M.d. sass | 270.51K | 5.28% | $80.81M |
| Snyder capital management l p | 922.18K | 4.76% | $275.50M |
| Shannon river fund management | 115.87K | 4.33% | $26.91M |
| 4d advisors | 35.00K | 4.02% | $10.46M |
| Gallo partners, lp | 5.97K | 3.95% | $1.78M |
| Bullseye asset management | 25.96K | 3.94% | $7.76M |
| Lansing management lp | 21.46K | 3.88% | $6.41M |
| Resolute capital asset partners | 25.00K | 3.19% | $7.47M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 3.00M | 0.04% | 901.48K |
| Norges bank | 632.10K | 0.02% | 632.10K |
| Sixth street partners management company | 473.99K | 0.02% | 473.99K |
| Hood river capital management | 498.75K | 1.08% | 374.47K |
| Fil | 877.43K | 0.19% | 367.75K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Lone pine capital | - | - | -1.75M |
| Pictet asset management sa | 608.81K | 0.17% | -633.33K |
| Palestra capital management | - | - | -569.99K |
| Zurich insurance group ltd/fi | - | - | -520.91K |
| Wellington management group llp | 3.16M | 0.16% | -421.80K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 632.10K | 0.02% | 632.10K | $188.84M |
| Sixth street partners management company | 473.99K | 0.02% | 473.99K | $141.60M |
| Steadfast capital management lp | 302.09K | 2.77% | 302.09K | $90.25M |
| Qube research | 247.08K | 0.07% | 247.08K | $73.81M |
| Shannon river fund management | 115.87K | 4.33% | 115.87K | $26.91M |
Sold Out
| Holder | Change |
|---|---|
| Dunhill financial | -1.00 |
| Newsquare capital | -1.00 |
| Tfo-tdc | -1.00 |
| Wall street financial group | -2.00 |
| Rakuten securities | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 662 | 4.42% | 49,777,394 | 1.69% | 94 | 1.11% | 302 | -8.21% | 245 | 25.00% |
| Mar 31, 2026 | 420 | -26.96% | 23,564,664 | -54.21% | 44 | 0.48% | 203 | -16.80% | 133 | -40.89% |
| Dec 31, 2025 | 424 | -26.26% | 30,005,021 | -39.54% | 56 | 0.65% | 162 | -34.41% | 171 | -15.35% |
| Sep 30, 2025 | 549 | -5.34% | 47,325,852 | -3.44% | 88 | 1.06% | 235 | -2.89% | 197 | -12.44% |
| Jun 30, 2025 | 571 | - | 48,854,685 | 1.65% | 91 | 1.14% | 242 | -12.95% | 218 | 8.46% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 1.71M | 3.23% | 52.00 |
| Fidelity Contrafund | 1.61M | 3.06% | 238.49K |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.52M | 2.87% | 4.25K |
| Vanguard Morn Total Stk Mkt Idx Investor | 1.51M | 2.86% | -5.72K |
| Vanguard Total Stock Mkt Idx Inv | 1.51M | 2.86% | -5.72K |
| Vanguard US Total Market Shares ETF | 1.54M | 2.84% | 1.19K |
| Vanguard Small Cap Index | 1.09M | 2.07% | 2.42K |
| AF Global Equity (AFRIS) | 963.30K | 1.78% | 963.30K |
| Janus Henderson Mid Cap Growth MA | 867.64K | 1.64% | 867.64K |
| Janus Inst Mid Cap Growth CF | 867.64K | 1.64% | -575.57K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 14, 2026 | GERSTENBERG ERIC W | CO-CEO | Sell | $803.35K |
| Mar 18, 2026 | GERSTENBERG ERIC W | CO-CEO | Sell | $293.00K |
| Feb 23, 2026 | GERSTENBERG ERIC W | CO-CEO | Sell | $699.65K |
| Feb 20, 2026 | Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | Sell | $784.29K |
| Aug 03, 2026 | Robertson Andrea | - | Sell | $247.75K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 1 |
| 2026 Q2 | 1 | 1 |
| 2026 Q1 | - | 9 |
| 2025 Q4 | - | 1 |
| 2025 Q3 | 1 | 1 |
CLH Ownership FAQ
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