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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $2.83M in total
- 5
- 13F holdersQ2 2026, +45 vs. previous quarter
- 663
- 13F valueReported value at the end of Q2 2026
- $14.8B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding CLH, Q2 2026
1 superinvestor reports holding Clean Harbors Inc on Form 13F. Percentages are the stock's share of each portfolio.
D1 Capital Partners
Dan Sundheim
1.1%
Clean Harbors Inc's share of the portfolio
- Shares
- 1,315,501
- Value
- $393.0M
Latest insider trades
Open-market purchases and sales by Clean Harbors Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 18, 2026 (view filing)2:47 PM ET | Aug 14 | 4 days | Gerstenberg Eric WCO-CEO | SSale | −2.50K | $321.34 | −$803.4K | −4.2%56.8K after | |
| Aug 14, 2026 (view filing)9:20 AM ET | Mar 18 | 149 days | Gerstenberg Eric WCO-CEO | SSale | −1.00K | $293.00 | −$293.0K | −1.6%59.9K after | Amended |
| Aug 14, 2026 (view filing)9:13 AM ET | Feb 23 | 172 days | Gerstenberg Eric WCO-CEO | SSale | −2.50K | $279.86 | −$699.6K | −3.8%64.0K after | Amended |
| Aug 14, 2026 (view filing)9:03 AM ET | Feb 20 | 175 days | Dugas Eric J.EVP CHIEF FINANCIAL OFFICER | SSale | −2.79K | $281.31 | −$784.3K | −12.2%20.0K after | Amended |
| Aug 3, 2026 (view filing)12:04 PM ET | Aug 3 | Same day | Robertson AndreaDirector | SSale | −789 | $314.01 | −$247.8K | −8.1%8.98K after | |
| May 27, 2026 (view filing) | May 26 | 1 day | States LaurenDirector | SSale | −789 | $286.19 | −$225.8K | −6.5%11.4K after | |
| May 14, 2026 (view filing) | May 11 | 3 days | Polito KarynDirector | PPurchase | +460 | $295.13 | +$135.8K | +15.3%3.48K after | Amended |
| Mar 19, 2026 (view filing) | Mar 18 | 1 day | Reed Marcy L.Director | SSale | −836 | $287.94 | −$240.7K | −14.1%5.08K after | |
| Mar 17, 2026 (view filing) | Mar 17 | Same day | Weber Brian PEVP (CHESI) | SSale | −4.68K | $293.39 | −$1.37M | −8.8%48.7K after | |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | McKim Alan SEXEC CHAIR, CTO. | SSale | −100.0K | $292.65 | −$29.3M | −4.6%2.07M after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Clean Harbors Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,076,220 | $1.52B | 0.02% | +273,728+5.7% | Added |
| Wellington Management Group LLP | 3,155,233 | $942.6M | 0.16% | −421,801−11.8% | Reduced |
| FMR LLC | 3,002,654 | $897.0M | 0.04% | +901,475+42.9% | Added |
| Vanguard Capital Management LLC | 2,182,972 | $652.2M | 0.01% | +13,608+0.6% | Added |
| Vanguard Portfolio Management LLC | 1,983,336 | $592.5M | 0.03% | +20,385+1.0% | Added |
| Jupiter Topco LLC | 1,598,574 | $477.6M | 0.19% | +1,598,574 | New |
| State Street Corp | 1,582,004 | $472.6M | 0.01% | +44,707+2.9% | Added |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 1,315,501 | $393.0M | 1.13% | −22,780−1.7% | Reduced |
| Geode Capital Management, LLC | 1,129,240 | $337.4M | 0.02% | +183,348+19.4% | Added |
| Clearbridge Investments, LLC | 1,126,744 | $336.6M | 0.28% | −76,033−6.3% | Reduced |