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Livermore
Livermore
ZHEN

FMR LLC

SEC CIK
0000315066
Latest filing
Aug 13, 2026

GBIO holding history

Generation Bio Co. in every 13F filed by FMR LLC, 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 2026)
0
Sold out in Q1 2026
Value
$0
% of portfolio
0.0%
Quarters held
20
Since Q1 2021
Holdings of GBIO by FMR LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 20260$00.0%−2,617−100.0%Sold outHolders
Q4 20252,617$14.9K<0.1%−10,414−79.9%ReducedHolders
Q3 202513,031$79.8K<0.1%−221,531−94.4%ReducedConverted for a 1-for-10 splitHolders
Q2 20252,345,624$750.8K<0.1%−2,406,791−50.6%ReducedHolders
Q1 20254,752,415$1.92M<0.1%+126,370+2.7%AddedHolders
Q4 20244,626,045$4.90M<0.1%−694,221−13.0%ReducedHolders
Q3 20245,320,266$13.1M<0.1%+15,656+0.3%AddedHolders
Q2 20245,304,610$15.0M<0.1%−29,649−0.6%ReducedHolders
Q1 20245,334,259$21.7M<0.1%−18,140−0.3%ReducedHolders
Q4 20235,352,399$8.83M<0.1%−3,080,374−36.5%ReducedHolders
Q3 20238,432,773$32.0M<0.1%−189,794−2.2%ReducedHolders
Q2 20238,622,567$47.4M<0.1%−327,296−3.7%ReducedHolders
Q1 20238,949,863$38.5M<0.1%+36,532+0.4%AddedHolders
Q4 20228,913,331$35.0M<0.1%+61,648+0.7%AddedHolders
Q3 20228,851,683$47.0M<0.1%+288,742+3.4%AddedHolders
Q2 20228,562,941$56.2M<0.1%+12,174+0.1%AddedHolders
Q1 20228,550,767$62.8M<0.1%+14,305+0.2%AddedHolders
Q4 20218,536,462$60.4M<0.1%+19,375+0.2%AddedHolders
Q3 20218,517,087$213.5M<0.1%+22,065+0.3%AddedHolders
Q2 20218,495,022$228.5M<0.1%+30,913+0.4%AddedHolders
Q1 20218,464,109$240.9M<0.1%––Holders

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