Who Owns Clean Harbors Inc (CLH)? 13F Institutional Holders (Q2 2026)

CLH ranks #836 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.

CLH is a top-conviction position for M.D. Sass, LLC — at 5.3% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.

The largest dollar stake in CLH belongs to BlackRock, Inc., but the position matters far more to M.D. Sass, LLC, who has 5.3% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.

Assenagon Asset Management S.A. has added to its CLH position for two straight quarters, increasing it by $38.1M to reach $52.2M today.

DAVENPORT & Co LLC has trimmed its CLH position for two straight quarters, cutting it by $11.7M while still holding $86.6M.

CLH is up 0.1% today, and institutions have been net buyers of $4.6B this quarter — today's price move and the underlying institutional flow are pointing the same direction.

CLH posted net income of $395.5M over the trailing twelve months, and currently trades at a P/E of 43.5.

• Profitable — net income of $395.5M over the trailing twelve months
• Revenue grew 1.9% year over year
• Net income improved year over year, from $391.1M to $395.5M
• Generated $866.7M in positive operating cash flow
• Current ratio of 2.33x — enough short-term assets to cover short-term liabilities
• Liabilities run x equity — a highly leveraged balance sheet worth noting