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Group One Trading, L.P.

SEC CIK
0000932540
Latest filing
Aug 13, 2026

ICLR holding history

Icon PLC 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.

ICLR overviewAll 13F holders of ICLRFull Q2 2026 holdings

Shares (Q2 2026)
893
Value
$155.1K
% of portfolio
<0.1%
Quarters held
10
Since Q1 2021
Holdings of ICLR by Group One Trading, L.P., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026893$155.1K<0.1%−662−42.6%ReducedHolders
Q1 20261,555$172.1K<0.1%−2,022−56.5%ReducedHolders
Q4 20253,577$651.8K<0.1%+3,577NewHolders
Q2 20250$00.0%−3,202−100.0%Sold outHolders
Q1 20253,202$560.3K<0.1%+3,175+11,759.3%AddedHolders
Q4 202427$5.66K<0.1%−186−87.3%ReducedHolders
Q3 2024213$61.2K<0.1%+13+6.5%AddedHolders
Q2 2024200$62.7K<0.1%+200NewHolders
Q1 20220$00.0%−1,688−100.0%Sold outHolders
Q4 20211,688$523.0K<0.1%+1,688NewHolders
Q3 20210$00.0%−13,800−100.0%Sold outHolders
Q2 202113,800$2.85M0.1%+10,000+263.2%AddedHolders
Q1 20213,800$746.0K<0.1%––Holders

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