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Group One Trading, L.P.

SEC CIK
0000932540
Latest filing
Aug 13, 2026

WST holding history

West Pharmaceutical Services Inc in every 13F filed by Group One Trading, L.P., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

WST overviewAll 13F holders of WSTFull Q2 2026 holdings

Shares (Q1 2026)
0
Sold out in Q1 2026
Value
$0
% of portfolio
0.0%
Quarters held
9
Since Q1 2021
Holdings of WST by Group One Trading, L.P., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 20260$00.0%−393−100.0%Sold outHolders
Q4 2025393$108.1K<0.1%+393NewHolders
Q2 20250$00.0%−3,108−100.0%Sold outHolders
Q1 20253,108$695.8K<0.1%−1,623−34.3%ReducedHolders
Q4 20244,731$1.55M0.1%−2,611−35.6%ReducedHolders
Q3 20247,342$2.20M0.1%+1,620+28.3%AddedHolders
Q2 20245,722$1.88M0.1%+5,722NewHolders
Q3 20220$00.0%−20,500−100.0%Sold outHolders
Q2 202220,500$6.20M0.2%+12,900+169.7%AddedHolders
Q1 20227,600$3.12M0.1%+7,600NewHolders
Q3 20210$00.0%−300−100.0%Sold outHolders
Q2 2021300$108.0K<0.1%−100−25.0%ReducedHolders
Q1 2021400$113.0K<0.1%––Holders

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