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Livermore
Livermore
ZHEN

Boston Partners

SEC CIK
0001386060
Latest filing
Aug 4, 2026

CSTM holding history

Constellium SE in every 13F filed by Boston Partners, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CSTM overviewAll 13F holders of CSTMFull Q2 2026 holdings

Shares (Q2 2026)
35,876
Value
$1.14M
% of portfolio
<0.1%
Quarters held
21
Since Q1 2021
Holdings of CSTM by Boston Partners, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202635,876$1.14M<0.1%−25,107−41.2%ReducedHolders
Q1 202660,983$1.50M<0.1%−481,021−88.7%ReducedHolders
Q4 2025542,004$10.2M<0.1%−83,106−13.3%ReducedHolders
Q3 2025625,110$9.30M<0.1%+340,357+119.5%AddedHolders
Q2 2025284,753$3.79M<0.1%+149,317+110.2%AddedHolders
Q1 2025135,436$1.37M<0.1%+4,164+3.2%AddedHolders
Q4 2024131,272$1.35M<0.1%+28,097+27.2%AddedHolders
Q3 2024103,175$1.68M<0.1%+10,275+11.1%AddedHolders
Q2 202492,900$1.75M<0.1%+35,950+63.1%AddedHolders
Q1 202456,950$1.26M<0.1%+23,033+67.9%AddedHolders
Q4 202333,917$677.0K<0.1%−16,708−33.0%ReducedHolders
Q3 202350,625$921.4K<0.1%−5,737−10.2%ReducedHolders
Q2 202356,362$969.4K<0.1%+15,545+38.1%AddedHolders
Q1 202340,817$623.7K<0.1%−6,227−13.2%ReducedHolders
Q4 202247,044$556.5K<0.1%+47,044NewHolders
Q3 20220$00.0%−32,654−100.0%Sold outHolders
Q2 202232,654$431.0K<0.1%+3,366+11.5%AddedHolders
Q1 202229,288$527.0K<0.1%−1,391−4.5%ReducedHolders
Q4 202130,679$549.0K<0.1%−6,688−17.9%ReducedHolders
Q3 202137,367$702.0K<0.1%−24,519−39.6%ReducedHolders
Q2 202161,886$1.17M<0.1%−92,234−59.8%ReducedHolders
Q1 2021154,120$2.27M<0.1%––Holders

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