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Tidemark, LLC

SEC CIK
0002009591
Latest filing
Aug 10, 2026

BIIB holding history

Biogen Inc. in every 13F filed by Tidemark, 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)
593
Value
$128.1K
% of portfolio
<0.1%
Quarters held
10
Since Q4 2023
Holdings of BIIB by Tidemark, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026593$128.1K<0.1%00.0%UnchangedHolders
Q1 2026593$108.7K<0.1%+1+0.2%AddedHolders
Q4 2025592$104.2K<0.1%00.0%UnchangedHolders
Q3 2025592$82.9K<0.1%00.0%UnchangedHolders
Q2 2025592$74.3K<0.1%00.0%UnchangedHolders
Q1 2025592$81.0K<0.1%00.0%UnchangedHolders
Q4 2024592$90.5K<0.1%00.0%UnchangedHolders
Q3 2024592$114.8K<0.1%+592NewHolders
Q2 20240$00.0%−15−100.0%Sold outHolders
Q1 202415$3.23K<0.1%00.0%UnchangedHolders
Q4 202315$3.88K<0.1%–No prior filingHolders