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Quantbot Technologies LP

SEC CIK
0001512991
Latest filing
Aug 12, 2026

AMPH holding history

Amphastar Pharmaceuticals, Inc. in every 13F filed by Quantbot Technologies LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AMPH overviewAll 13F holders of AMPHFull Q2 2026 holdings

Shares (Q2 2026)
1,924
Value
$38.8K
% of portfolio
<0.1%
Quarters held
10
Since Q1 2021
Holdings of AMPH by Quantbot Technologies LP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,924$38.8K<0.1%+1,924NewHolders
Q1 20260$00.0%−14,515−100.0%Sold outHolders
Q4 202514,515$388.7K<0.1%−15,248−51.2%ReducedHolders
Q3 202529,763$793.2K<0.1%−31,192−51.2%ReducedHolders
Q2 202560,955$1.40M<0.1%+39,846+188.8%AddedHolders
Q1 202521,109$612.0K<0.1%−4,345−17.1%ReducedHolders
Q4 202425,454$945.1K<0.1%+25,454NewHolders
Q3 20240$00.0%−12,430−100.0%Sold outHolders
Q2 202412,430$497.2K<0.1%+1,482+13.5%AddedHolders
Q1 202410,948$480.7K<0.1%+10,948NewHolders
Q2 20220$00.0%−600−100.0%Sold outHolders
Q1 2022600$21.0K<0.1%+600NewHolders
Q2 20210$00.0%−2,900−100.0%Sold outHolders
Q1 20212,900$53.0K<0.1%––Holders

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