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Arizona State Retirement System

SEC CIK
0001558481
Latest filing
Aug 7, 2026

GBIO holding history

Generation Bio Co. in every 13F filed by Arizona State Retirement System, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

GBIO overviewAll 13F holders of GBIOFull Q2 2026 holdings

Shares (Q1 2023)
0
Sold out in Q1 2023
Value
$0
% of portfolio
0.0%
Quarters held
6
Since Q1 2021
Holdings of GBIO by Arizona State Retirement System, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 20230$00.0%−12,488−100.0%Sold outHolders
Q4 202212,488$49.1K<0.1%+853+7.3%AddedHolders
Q3 202211,635$62.0K<0.1%+49+0.4%AddedHolders
Q2 202211,586$76.0K<0.1%+11,586NewHolders
Q4 20210$00.0%−10,027−100.0%Sold outHolders
Q3 202110,027$251.0K<0.1%+183+1.9%AddedHolders
Q2 20219,844$265.0K<0.1%+923+10.3%AddedHolders
Q1 20218,921$254.0K<0.1%––Holders

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