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TOWER TRUST & INVESTMENT Co

Position in BIIB — Biogen Inc.

CIK 2067591 DAVENPORT, IA

Position in BIIB

as of Jun 30, 2026 · filed Jul 9, 2026
Position Value
$608,857
+$83,067 QoQ
Shares Held
2,818
-1.7% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.45%
of 13F equity value
Holder Rank
#538
of 1,031 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

TOWER TRUST & INVESTMENT Co holds $5,569,315 across 10 Drug Manufacturers - General names. BIIB ranks #4 (10.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 BIIB
Biogen Inc.
This page
2,818 $608,857

All Filings in BIIB

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6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $608,857 2,818
2026-03-31 $525,790 2,868
2025-12-31 $502,803 2,857
2025-09-30 $406,232 2,900
2025-06-30 $363,583 2,895
2025-03-31 $373,162 2,727