Jackson Square Partners’s Clean Harbors CLH Stock Holding History

Jackson Square Partners’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	-17,029	Closed	-$3.95M	–	11
2025 Q3	$3.95M	Sell	17,029 -4,806	-22%	-$1.14M	1.6%	20
2025 Q2	$5.05M	Sell	21,835 -109,273	-83%	-$23.9M	1.87%	14
2025 Q1	$25.8M	Sell	131,108 -26,579	-17%	-$5.82M	3.48%	4
2024 Q4	$36.3M	Sell	157,687 -31,678	-17%	-$7.87M	3.78%	3
2024 Q3	$45.8M	Sell	189,365 -101,412	-35%	-$23.8M	3.95%	2
2024 Q2	$65.8M	Sell	290,777 -119,238	-29%	-$25M	4.01%	2
2024 Q1	$82.5M	Sell	410,015 -159,805	-28%	-$28.7M	3.43%	4
2023 Q4	$99.4M	Sell	569,820 -159,170	-22%	-$26.1M	3.23%	11
2023 Q3	$122M	Sell	728,990 -94,556	-11%	-$15.9M	4.08%	5
2023 Q2	$135M	Buy	823,546 +212,958	+35%	+$31.1M	3.95%	5
2023 Q1	$87M	Buy	+610,588	New	+$79.5M	2.35%	19

Other funds holding CLH

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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

DCP

D1 Capital Partners New York $11.2B AUM 15.78% 1-Year Est. Return

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

Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

LPC

Lone Pine Capital Greenwich, Connecticut $12.5B AUM 54.4% 1-Year Est. Return

ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return

SCM

Snyder Capital Management San Francisco, California $5.16B AUM 26.72% 1-Year Est. Return

Jackson Square Partners's CLH Position: Q4 2025 in Review

Jackson Square Partners sold out of Clean Harbors (CLH) in Q4 2025, closing a stake of 17,029 shares — an estimated $3.95M sold.

Jackson Square Partners first reported a position in CLH in Q1 2023 and held it in 11 quarters. The position peaked at $135M in Q2 2023. 565 funds tracked by Wall St. Rank hold CLH as of Q4 2025.

Jackson Square Partners reported no remaining Clean Harbors position as of Q4 2025 after selling out during the quarter.
Jackson Square Partners sold 17,029 Clean Harbors shares in Q4 2025, an estimated $3.95M.
Jackson Square Partners first reported a position in Clean Harbors in Q1 2023 and held it in 11 quarters.
Jackson Square Partners's Clean Harbors position peaked at $135M in Q2 2023.
565 funds tracked by Wall St. Rank held Clean Harbors as of Q4 2025.

Based on Jackson Square Partners's 13F filing for Q4 2025.