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Cornerstone Advisors, LLC

SEC CIK
0001775446
Latest filing
Aug 7, 2026

BIIB holding history

Biogen Inc. in every 13F filed by Cornerstone 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 (Q3 2025)
0
Sold out in Q3 2025
Value
$0
% of portfolio
0.0%
Quarters held
18
Since Q1 2021
Holdings of BIIB by Cornerstone Advisors, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q3 20250$00.0%−3,100−100.0%Sold outHolders
Q2 20253,100$389.3K<0.1%−500−13.9%ReducedHolders
Q1 20253,600$492.6K<0.1%00.0%UnchangedHolders
Q4 20243,600$550.5K<0.1%00.0%UnchangedHolders
Q3 20243,600$697.8K<0.1%00.0%UnchangedHolders
Q2 20243,600$834.6K<0.1%−2,900−44.6%ReducedHolders
Q1 20246,500$1.40M0.1%00.0%UnchangedHolders
Q4 20236,500$1.68M0.1%−4,500−40.9%ReducedHolders
Q3 202311,000$2.83M0.1%−7,000−38.9%ReducedHolders
Q2 202318,000$5.13M0.2%00.0%UnchangedHolders
Q1 202318,000$5.00M0.2%00.0%UnchangedHolders
Q4 202218,000$4.98M0.2%+2,000+12.5%AddedHolders
Q3 202216,000$4.27M0.2%00.0%UnchangedHolders
Q2 202216,000$3.26M0.2%00.0%UnchangedHolders
Q1 202216,000$3.37M0.2%00.0%UnchangedHolders
Q4 202116,000$3.84M0.2%00.0%UnchangedHolders
Q3 202116,000$4.53M0.3%00.0%UnchangedHolders
Q2 202116,000$5.54M0.3%+7,000+77.8%AddedHolders
Q1 20219,000$2.52M0.2%––Holders

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