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Livermore
Livermore
ZHEN

D. E. Shaw & Co., Inc.

SEC CIK
0001009207
Latest filing
Aug 14, 2026

AMPH holding history

Amphastar Pharmaceuticals, Inc. in every 13F filed by D. E. Shaw & Co., Inc., 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)
887,048
Value
$17.9M
% of portfolio
<0.1%
Quarters held
19
Since Q1 2021
Holdings of AMPH by D. E. Shaw & Co., Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026887,048$17.9M<0.1%+221,506+33.3%AddedHolders
Q1 2026665,542$13.0M<0.1%+108,476+19.5%AddedHolders
Q4 2025557,066$14.9M<0.1%+39,844+7.7%AddedHolders
Q3 2025517,222$13.8M<0.1%+223,294+76.0%AddedHolders
Q2 2025293,928$6.75M<0.1%+264,740+907.0%AddedHolders
Q1 202529,188$846.2K<0.1%−89,663−75.4%ReducedHolders
Q4 2024118,851$4.41M<0.1%+95,192+402.4%AddedHolders
Q3 202423,659$1.15M<0.1%+23,659NewHolders
Q1 20240$00.0%−77,080−100.0%Sold outHolders
Q4 202377,080$4.77M<0.1%−23,093−23.1%ReducedHolders
Q3 2023100,173$4.61M<0.1%−23,426−19.0%ReducedHolders
Q2 2023123,599$7.10M<0.1%−13,714−10.0%ReducedHolders
Q1 2023137,313$5.15M<0.1%+79,365+137.0%AddedHolders
Q4 202257,948$1.62M<0.1%+69+0.1%AddedHolders
Q3 202257,879$1.63M<0.1%−3,856−6.2%ReducedHolders
Q2 202261,735$2.15M<0.1%−3,404−5.2%ReducedHolders
Q1 202265,139$2.34M<0.1%+38,370+143.3%AddedHolders
Q4 202126,769$623.0K<0.1%+26,769NewHolders
Q3 20210$00.0%−35,699−100.0%Sold outHolders
Q2 202135,699$720.0K<0.1%+17,921+100.8%AddedHolders
Q1 202117,778$326.0K<0.1%––Holders

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