MAM
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Martingale Asset Management’s Clean Harbors CLH Stock Holding History

Martingale Asset 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
2026
Q1 		$434K Sell
1,515
-10
-0.7% -$2.73K 0.01% 674
2025
Q4 		$358K Sell
1,525
-8,966
-85% -$2.05M 0.01% 662
2025
Q3 		$2.44M Sell
10,491
-9,502
-48% -$2.25M 0.06% 264
2025
Q2 		$4.62M Sell
19,993
-165
-0.8% -$36.1K 0.11% 155
2025
Q1 		$3.97M Sell
20,158
-60,605
-75% -$13.3M 0.1% 176
2024
Q4 		$18.6M Sell
80,763
-32,809
-29% -$8.15M 0.45% 85
2024
Q3 		$27.5M Sell
113,572
-21,586
-16% -$5.07M 0.63% 45
2024
Q2 		$30.6M Sell
135,158
-16,002
-11% -$3.35M 0.66% 45
2024
Q1 		$30.4M Sell
151,160
-12,785
-8% -$2.3M 0.61% 56
2023
Q4 		$28.6M Sell
163,945
-11,114
-6% -$1.82M 0.58% 60
2023
Q3 		$29.3M Sell
175,059
-15,915
-8% -$2.68M 0.62% 55
2023
Q2 		$31.4M Sell
190,974
-16,718
-8% -$2.44M 0.61% 53
2023
Q1 		$29.6M Sell
207,692
-7,265
-3% -$946K 0.57% 65
2022
Q4 		$24.5M Sell
214,957
-9,111
-4% -$1.06M 0.48% 81
2022
Q3 		$24.6M Sell
224,068
-17,578
-7% -$1.88M 0.49% 78
2022
Q2 		$21.2M Sell
241,646
-6,242
-3% -$602K 0.39% 100
2022
Q1 		$27.7M Sell
247,888
-20,071
-7% -$1.98M 0.42% 94
2021
Q4 		$26.7M Sell
267,959
-15,826
-6% -$1.67M 0.34% 114
2021
Q3 		$29.5M Sell
283,785
-28,724
-9% -$2.83M 0.39% 104
2021
Q2 		$29.1M Buy
312,509
+111,760
+56% +$10.2M 0.33% 113
2021
Q1 		$16.9M Buy
200,749
+8,945
+5% +$753K 0.19% 153
2020
Q4 		$14.6M Sell
191,804
-81,165
-30% -$5.44M 0.17% 151
2020
Q3 		$15.3M Buy
272,969
+3,237
+1% +$192K 0.18% 143
2020
Q2 		$16.2M Sell
269,732
-36,140
-12% -$2.01M 0.19% 151
2020
Q1 		$15.7M Buy
305,872
+60,186
+24% +$4.4M 0.21% 153
2019
Q4 		$21.1M Buy
245,686
+135,032
+122% +$11M 0.22% 147
2019
Q3 		$8.54M Buy
110,654
+30,998
+39% +$2.29M 0.09% 247
2019
Q2 		$5.67M Buy
79,656
+62,336
+360% +$4.34M 0.06% 337
2019
Q1 		$1.24M Buy
17,320
+4,703
+37% +$291K 0.01% 732
2018
Q4 		$624K Buy
+12,617
New +$786K 0.01% 824
2017
Q2 		– Sell
-38,071
Closed -$2.12M – 946
2017
Q1 		$2.12M Sell
38,071
-133,706
-78% -$7.4M 0.03% 532
2016
Q4 		$9.56M Sell
171,777
-15,307
-8% -$772K 0.13% 189
2016
Q3 		$8.98M Sell
187,084
-14,799
-7% -$734K 0.13% 191
2016
Q2 		$10.5M Buy
201,883
+27,500
+16% +$1.38M 0.17% 176
2016
Q1 		$8.61M Buy
174,383
+35,956
+26% +$1.57M 0.17% 183
2015
Q4 		$5.77M Buy
138,427
+32,972
+31% +$1.43M 0.13% 210
2015
Q3 		$4.64M Buy
+105,455
New +$5.23M 0.11% 223
2014
Q4 		– Sell
-6,504
Closed -$351K – 843
2014
Q3 		$351K Buy
+6,504
New +$382K 0.01% 741

Other funds holding CLH

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
LPC
Lone Pine Capital Greenwich, Connecticut $12.5B AUM 54.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
DCP
D1 Capital Partners New York $11.2B AUM 15.78% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

Martingale Asset Management's CLH Position: Q1 2026 in Review

Martingale Asset Management reduced its Clean Harbors (CLH) stake by 0.66% in Q1 2026, selling an estimated $2.73K and leaving 1,515 shares worth $434K. The position accounts for 0.01% of the portfolio, ranked #674.

Martingale Asset Management first reported a position in CLH in Q3 2014 and has held it in 38 quarters since. The position peaked at $31.4M in Q2 2023. 624 funds tracked by Wall St. Rank hold CLH as of Q1 2026.

  • Martingale Asset Management held 1,515 shares of Clean Harbors worth $434K as of Q1 2026.
  • Martingale Asset Management sold 10 Clean Harbors shares in Q1 2026, an estimated $2.73K.
  • Clean Harbors made up 0.01% of Martingale Asset Management's portfolio in Q1 2026, its #674 holding.
  • Martingale Asset Management first reported a position in Clean Harbors in Q3 2014 and has held it in 38 quarters since.
  • Martingale Asset Management's Clean Harbors position peaked at $31.4M in Q2 2023.
  • 624 funds tracked by Wall St. Rank held Clean Harbors as of Q1 2026.

Based on Martingale Asset Management's 13F filing for Q1 2026, filed 13 May 2026.