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Livermore
Livermore
ZHEN

Parallel Advisors, LLC

SEC CIK
0001690010
Latest filing
Aug 5, 2026

BIIB holding history

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

BIIB overviewAll 13F holders of BIIBFull Q2 2026 holdings

Shares (Q2 2026)
4,145
Value
$895.6K
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of BIIB by Parallel Advisors, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20264,145$895.6K<0.1%−222−5.1%ReducedHolders
Q1 20264,367$800.8K<0.1%+65+1.5%AddedHolders
Q4 20254,302$757.2K<0.1%+79+1.9%AddedHolders
Q3 20254,223$591.6K<0.1%−131−3.0%ReducedHolders
Q2 20254,354$546.9K<0.1%+2,744+170.4%AddedHolders
Q1 20251,610$220.3K<0.1%+290+22.0%AddedHolders
Q4 20241,320$201.9K<0.1%−225−14.6%ReducedHolders
Q3 20241,545$299.5K<0.1%−437−22.0%ReducedHolders
Q2 20241,982$459.5K<0.1%+156+8.5%AddedHolders
Q1 20241,826$393.7K<0.1%−75−3.9%ReducedHolders
Q4 20231,901$491.9K<0.1%−33−1.7%ReducedHolders
Q3 20231,934$497.1K<0.1%−99−4.9%ReducedHolders
Q2 20232,033$579.1K<0.1%+42+2.1%AddedHolders
Q1 20231,991$553.6K<0.1%−57−2.8%ReducedHolders
Q4 20222,048$567.1K<0.1%+291+16.6%AddedHolders
Q3 20221,757$469.0K<0.1%−16−0.9%ReducedHolders
Q2 20221,773$362.0K<0.1%−79−4.3%ReducedHolders
Q1 20221,852$391.0K<0.1%−148−7.4%ReducedHolders
Q4 20212,000$480.0K<0.1%−192−8.8%ReducedHolders
Q3 20212,192$620.0K<0.1%+22+1.0%AddedHolders
Q2 20212,170$751.0K<0.1%+197+10.0%AddedHolders
Q1 20211,973$552.0K<0.1%––Holders

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