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Livermore
Livermore
ZHEN

Marshall Wace, LLP

SEC CIK
0001318757
Latest filing
Aug 13, 2026

CLH holding history

Clean Harbors Inc in every 13F filed by Marshall Wace, LLP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CLH overviewAll 13F holders of CLHFull Q2 2026 holdings

Shares (Q2 2026)
8,667
Value
$2.59M
% of portfolio
<0.1%
Quarters held
20
Since Q1 2021
Holdings of CLH by Marshall Wace, LLP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20268,667$2.59M<0.1%−35,810−80.5%ReducedHolders
Q1 202644,477$12.8M<0.1%−20,104−31.1%ReducedHolders
Q4 202564,581$15.1M<0.1%+61,451+1,963.3%AddedHolders
Q3 20253,130$726.8K<0.1%−190,045−98.4%ReducedHolders
Q2 2025193,175$44.7M0.1%+7,959+4.3%AddedHolders
Q1 2025185,216$36.5M<0.1%−146,788−44.2%ReducedHolders
Q4 2024332,004$76.4M0.1%−6,326−1.9%ReducedHolders
Q3 2024338,330$81.8M0.1%−198,944−37.0%ReducedHolders
Q2 2024537,274$121.5M0.2%+90,756+20.3%AddedHolders
Q1 2024446,518$89.9M0.1%−1,464−0.3%ReducedHolders
Q4 2023447,982$78.2M0.1%−114,809−20.4%ReducedHolders
Q3 2023562,791$94.2M0.2%−113,464−16.8%ReducedHolders
Q2 2023676,255$111.2M0.2%−38,877−5.4%ReducedHolders
Q1 2023715,132$101.9M0.3%+110,769+18.3%AddedHolders
Q4 2022604,363$69.0M0.2%−119,371−16.5%ReducedHolders
Q3 2022723,734$79.6M0.2%−165,173−18.6%ReducedHolders
Q2 2022888,907$77.9M0.2%−478,358−35.0%ReducedHolders
Q1 20221,367,265$152.6M0.3%−10,395−0.8%ReducedHolders
Q4 20211,377,660$137.4M0.3%+1,377,660NewHolders
Q2 20210$00.0%−15,866−100.0%Sold outHolders
Q1 202115,866$1.33M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.