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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

ATYR holding history

aTYR PHARMA INC in every 13F filed by Citadel Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ATYR overviewAll 13F holders of ATYRFull Q2 2026 holdings

Shares (Q2 2026)
1,242,067
Value
$741.3K
% of portfolio
<0.1%
Quarters held
18
Since Q1 2021
Holdings of ATYR by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,242,067$741.3K<0.1%+1,194,695+2,521.9%AddedHolders
Q1 202647,372$37.0K<0.1%+47,372NewHolders
Q3 20250$00.0%−119,117−100.0%Sold outHolders
Q2 2025119,117$603.9K<0.1%−141,890−54.4%ReducedHolders
Q1 2025261,007$788.2K<0.1%+248,646+2,011.5%AddedHolders
Q4 202412,361$44.7K<0.1%−954,246−98.7%ReducedHolders
Q3 2024966,607$1.70M<0.1%−878,655−47.6%ReducedHolders
Q2 20241,845,262$2.88M<0.1%−58,084−3.1%ReducedHolders
Q1 20241,903,346$3.71M<0.1%+149,746+8.5%AddedHolders
Q4 20231,753,600$2.47M<0.1%−30,536−1.7%ReducedHolders
Q3 20231,784,136$2.82M<0.1%+1,464,046+457.4%AddedHolders
Q2 2023320,090$691.4K<0.1%+279,161+682.1%AddedHolders
Q1 202340,929$86.0K<0.1%+3,092+8.2%AddedHolders
Q4 202237,837$82.9K<0.1%+37,837NewHolders
Q2 20220$00.0%−159,921−100.0%Sold outHolders
Q1 2022159,921$855.0K<0.1%−33,573−17.4%ReducedHolders
Q4 2021193,494$1.45M<0.1%−6,921−3.5%ReducedHolders
Q3 2021200,415$1.82M<0.1%+170,542+570.9%AddedHolders
Q2 202129,873$145.0K<0.1%+16,403+121.8%AddedHolders
Q1 202113,470$60.0K<0.1%––Holders

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