Portolan Capital Management’s Clean Harbors CLH Stock Holding History

Portolan Capital Management’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
2023 Q4	–	Sell	-6,247	Closed	-$1.05M	–	135
2023 Q3	$1.05M	Sell	6,247 -15,709	-72%	-$2.65M	0.1%	117
2023 Q2	$3.61M	Sell	21,956 -49,321	-69%	-$7.21M	0.32%	82
2023 Q1	$10.2M	Buy	+71,277	New	+$9.28M	0.97%	31
2014 Q4	–	Sell	-17,681	Closed	-$953K	–	114
2014 Q3	$953K	Sell	17,681 -52,442	-75%	-$3.08M	0.22%	97
2014 Q2	$4.5M	Buy	70,123 +18,633	+36%	+$1.11M	0.98%	38
2014 Q1	$2.82M	Sell	51,490 -22,751	-31%	-$1.24M	0.65%	69
2013 Q4	$4.45M	Buy	74,241 +33,900	+84%	+$1.95M	0.99%	37
2013 Q3	$2.37M	Sell	40,341 -26,713	-40%	-$1.49M	0.62%	63
2013 Q2	$3.39M	Buy	+67,054	New	+$3.74M	0.97%	39

Other funds holding CLH

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

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

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

Select Equity Group New York $20.2B AUM 17.52% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

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

SCM

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Bessemer Group Woodbridge, New Jersey $72.7B AUM 39.36% 1-Year Est. Return

Portolan Capital Management's CLH Position: Q4 2023 in Review

Portolan Capital Management sold out of Clean Harbors (CLH) in Q4 2023, closing a stake of 6,247 shares — an estimated $1.05M sold.

Portolan Capital Management first reported a position in CLH in Q2 2013 and held it in 9 quarters. The position peaked at $10.2M in Q1 2023. 450 funds tracked by Wall St. Rank hold CLH as of Q4 2023.

Portolan Capital Management reported no remaining Clean Harbors position as of Q4 2023 after selling out during the quarter.
Portolan Capital Management sold 6,247 Clean Harbors shares in Q4 2023, an estimated $1.05M.
Portolan Capital Management first reported a position in Clean Harbors in Q2 2013 and held it in 9 quarters.
Portolan Capital Management's Clean Harbors position peaked at $10.2M in Q1 2023.
450 funds tracked by Wall St. Rank held Clean Harbors as of Q4 2023.

Based on Portolan Capital Management's 13F filing for Q4 2023, filed 14 Feb 2024.