Lone Pine Capital 13F: Adds $113M to Clean Harbors (CLH) Stake

Lone Pine Capital Increases Exposure to Clean Harbors

Lone Pine Capital filed a Form 13F with the SEC revealing it expanded its holdings in Clean Harbors, Inc. (NYSE:CLH) during the period ended May 15, 2026. The fund grew its position by 376,825 shares, representing a 27.3% increase from its previous holdings. This purchase brought the fund's total stake to 1,754,950 shares with a reported market value of $524.3 million. Because 13F filings look backward at a prior quarter, this report captures Lone Pine's positioning at that specific date and might not match the fund's exact current portfolio.

Lone Pine Capital Portfolio Adjustments

Known for taking concentrated positions in select companies, Lone Pine Capital has been actively shifting its capital across various sectors this year. The firm completely exited its Etsy investment earlier in 2026 while building new positions in other names like US Foods and Performance Food Group, alongside adding to companies like Spotify and Tenet Healthcare. This latest move in Clean Harbors fits a pattern of scaling into established industrial and service providers.

Clean Harbors Stock Performance

Clean Harbors shares trade around $298.75, sitting well above their 52-week low of $201.34 and below the high of $335.94. The stock trades above its 200-day moving average of $287.54, reflecting steady momentum through the year. With a forward P/E ratio of 31.4, the company trades at a notable valuation compared to broader industrial averages.

Wall Street Analyst Views on Clean Harbors

Analyst firms have kept a generally positive outlook on the company through the autumn. On October 15, 2026, Citigroup maintained its Buy rating while raising its price target to $378.00 from $376.00. TD Cowen also kept a Buy rating on October 14, 2026, lifting its target to $390.00 from $380.00. Earlier, on October 8, 2026, Barclays maintained its Equal-Weight rating and moved its target to $335.00, while William Blair initiated coverage with an Outperform rating on September 10, 2026.

What Clean Harbors Does

Clean Harbors provides environmental and industrial services across the United States and Canada. The company handles hazardous and non-hazardous waste disposal, recycling, emergency spill response, and industrial maintenance through its primary operations. It also runs a sustainability solutions segment that collects used oil, parts-washer fluids, and related materials for automotive and industrial customers.

What to Watch Next for CLH

Investors tracking Clean Harbors will likely look toward the company's next earnings release scheduled for November 4, 2026, for updated financial metrics. Future 13F filings from institutional backers will also show whether funds like Lone Pine Capital continue to accumulate shares or pause their buying.