S&CO Inc’s Clean Harbors CLH Stock Holding History

S&CO Inc’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
2026 Q2	$358K	Hold	1,200	–	–	0.02%	184
2026 Q1	$344K	Hold	1,200	–	–	0.02%	182
2025 Q4	$281K	Hold	1,200	–	–	0.02%	195
2025 Q3	$278K	Hold	1,200	–	–	0.02%	199
2025 Q2	$277K	Hold	1,200	–	–	0.02%	198
2025 Q1	$236K	Hold	1,200	–	–	0.02%	206
2024 Q4	$276K	Hold	1,200	–	–	0.02%	188
2024 Q3	$290K	Hold	1,200	–	–	0.02%	192
2024 Q2	$271K	Hold	1,200	–	–	0.02%	196
2024 Q1	$241K	Hold	1,200	–	–	0.02%	194
2023 Q4	$209K	Hold	1,200	–	–	0.02%	186
2023 Q3	$200K	Buy	+1,200	New	+$202K	0.02%	178
2015 Q1	–	Sell	-19,800	Closed	-$951K	–	142
2014 Q4	$951K	Hold	19,800	–	–	0.14%	90
2014 Q3	$1.07M	Hold	19,800	–	–	0.16%	78
2014 Q2	$1.27M	Hold	19,800	–	–	0.18%	74
2014 Q1	$1.08M	Hold	19,800	–	–	0.16%	74
2013 Q4	$1.19M	Hold	19,800	–	–	0.2%	70
2013 Q3	$1.16M	Buy	19,800 +8,700	+78%	+$485K	0.2%	71
2013 Q2	$561K	Buy	+11,100	New	+$619K	0.09%	86

Other funds holding CLH

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

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Jupiter Topco New York $245B AUM

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

DCP

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

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

S&CO Inc's CLH Position: Q2 2026 in Review

S&CO Inc held its Clean Harbors (CLH) position steady in Q2 2026 at 1,200 shares worth $358K. The position accounts for 0.02% of the portfolio, ranked #184.

S&CO Inc first reported a position in CLH in Q2 2013 and has held it in 19 quarters since. The position peaked at $1.27M in Q2 2014. 660 funds tracked by Wall St. Rank hold CLH as of Q2 2026.

S&CO Inc held 1,200 shares of Clean Harbors worth $358K as of Q2 2026.
S&CO Inc left its Clean Harbors share count unchanged in Q2 2026.
Clean Harbors made up 0.02% of S&CO Inc's portfolio in Q2 2026, its #184 holding.
S&CO Inc first reported a position in Clean Harbors in Q2 2013 and has held it in 19 quarters since.
S&CO Inc's Clean Harbors position peaked at $1.27M in Q2 2014.
660 funds tracked by Wall St. Rank held Clean Harbors as of Q2 2026.

Based on S&CO Inc's 13F filing for Q2 2026, filed 6 Aug 2026.