Watchtower Advisors’s Clean Harbors CLH Stock Holding History

Watchtower Advisors’s Portfolio CLH Stock Details CLH Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-76,144	Closed	-$17.7M	–	15
2025 Q3	$17.7M	Buy	+76,144	New	+$18M	8.25%	4

Other funds holding CLH

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

DCP

D1 Capital Partners New York $34.8B AUM 11.34% 1-Year Est. Return

Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

LPC

Lone Pine Capital Greenwich, Connecticut $16.4B AUM 99.7% 1-Year Est. Return

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

SCM

Snyder Capital Management San Francisco, California $5.79B AUM 33.56% 1-Year Est. Return

Watchtower Advisors's CLH Position: Q4 2025 in Review

Watchtower Advisors sold out of Clean Harbors (CLH) in Q4 2025, closing a stake of 76,144 shares — an estimated $17.7M sold.

Watchtower Advisors first reported a position in CLH in Q3 2025 and held it in 1 quarter. The position peaked at $17.7M in Q3 2025. 566 funds tracked by Wall St. Rank hold CLH as of Q4 2025.

Watchtower Advisors reported no remaining Clean Harbors position as of Q4 2025 after selling out during the quarter.
Watchtower Advisors sold 76,144 Clean Harbors shares in Q4 2025, an estimated $17.7M.
Watchtower Advisors first reported a position in Clean Harbors in Q3 2025 and held it in 1 quarter.
Watchtower Advisors's Clean Harbors position peaked at $17.7M in Q3 2025.
566 funds tracked by Wall St. Rank held Clean Harbors as of Q4 2025.

Based on Watchtower Advisors's 13F filing for Q4 2025, filed 13 Feb 2026.