Insider Sale: CO-CEO of $CLH Sells 8,076 Shares

CLH Co-CEO Eric Gerstenberg sold 8,076 shares on June 6, 2025, for approximately $1.82 million, representing 13.5% of their holdings in that class of stock; SEC filings reveal that $CLH insiders have predominantly been sellers over the past six months, with 13 sales versus 1 purchase. Institutional investors displayed mixed sentiment in Q1 2025, with Wellington Management increasing its stake by 30.9% while FMR LLC and Invesco Ltd. significantly reduced their positions by 61.7% and 55.1% respectively. Members of Congress have also been net sellers of the stock over the past six months.

Analysis

The recent sale of 8,076 shares by CLH Co-CEO Eric W. Gerstenberg on June 6, 2025, for an estimated $1.82 million, representing a 13.5% reduction in his holdings of this stock class, is a significant data point. This transaction is part of a broader pattern of insider selling at $CLH over the past six months, which has seen 13 sales versus a single purchase. Notably, Exec Chair Alan S. McKim sold 152,999 shares for approximately $33.6 million, while the only insider purchase was made by EVP Chief Financial Officer Eric J. Dugas, acquiring 1,050 shares for roughly $200,949. This prevailing insider selling trend aligns with a moderately negative sentiment score of -0.6 specifically for $CLH. Institutional investor activity in Q1 2025 presents a mixed picture: 274 institutional investors added $CLH shares, while 333 reduced their positions. Significant increases include Wellington Management Group LLP adding 1.25 million shares (+30.9%) and Janus Henderson Group PLC adding 526,441 shares (+32.7%). Conversely, FMR LLC divested 1.04 million shares (-61.7%), Invesco Ltd. reduced its stake by 874,985 shares (-55.1%), and Zurich Insurance Group Ltd/FI completely liquidated its position of 520,910 shares. Adding to the cautious signals, members of Congress have exclusively sold $CLH stock in the past six months, with three sales and no purchases recorded.

Key Decisions for Investors

• Investors should note the pronounced insider selling activity, particularly from senior executives like the Co-CEO and Exec Chair, which may signal cautious internal expectations for $CLH's near-term performance or current valuation.
• The divergent movements among institutional investors, with some large funds increasing stakes while others significantly decrease or exit positions, suggest a lack of consensus and heightened uncertainty; careful monitoring of fundamental developments and sector trends is warranted.