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Tidemark, LLC

Position in BIIB — Biogen Inc.

CIK 2009591 SAN DIEGO, CA

Position in BIIB

as of Jun 30, 2026 · filed Aug 10, 2026
Position Value
$128,123
+$19,409 QoQ
Shares Held
593
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.15%
of 13F equity value
Holder Rank
#784
of 1,038 holders
Holding Since
Dec 2023
10 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

Tidemark, LLC holds $1,137,776 across 14 Drug Manufacturers - General names. BIIB ranks #3 (11.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 BIIB
Biogen Inc.
This page
593 $128,123

All Filings in BIIB

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10 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $128,123 593
2026-03-31 $108,714 593
2025-12-31 $104,186 592
2025-09-30 $82,927 592
2025-06-30 $74,349 592
2025-03-31 $81,009 592
2024-12-31 $90,528 592
2024-09-30 $114,753 592
2024-03-31 $3,234 15
2023-12-31 $3,881 15