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Colonial River Investments, LLC

Position in BIIB — Biogen Inc.

CIK 1845859 MIDLOTHIAN, VA

Position in BIIB

as of Jun 30, 2026 · filed Jul 24, 2026
Position Value
$404,248
+$68,755 QoQ
Shares Held
1,871
+2.2% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.21%
of 13F equity value
Holder Rank
#607
of 1,031 holders
Holding Since
Dec 2025
3 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

Colonial River Investments, LLC holds $5,062,014 across 8 Drug Manufacturers - General names. BIIB ranks #8 (8.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 BIIB
Biogen Inc.
This page
1,871 $404,248

All Filings in BIIB

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3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $404,248 1,871
2026-03-31 $335,493 1,830
2025-12-31 $400,025 2,273