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North Star Investment Management Corp.

Position in BIIB — Biogen Inc.

CIK 1342857 CHICAGO, IL

Position in BIIB

as of Jun 30, 2026 · filed Jul 28, 2026
Position Value
$1,214,473
+$183,976 QoQ
Shares Held
5,621
0.0% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#422
of 1,031 holders
Holding Since
Mar 2020
26 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

North Star Investment Management Corp. holds $65,338,004 across 15 Drug Manufacturers - General names. BIIB ranks #8 (1.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 BIIB
Biogen Inc.
This page
5,621 $1,214,473

All Filings in BIIB

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,214,473 5,621
2026-03-31 $1,030,497 5,621
2025-12-31 $992,935 5,642
2025-09-30 $787,529 5,622
2025-06-30 $706,066 5,622
2025-03-31 $769,314 5,622
2024-12-31 $859,716 5,622
2024-09-30 $1,089,768 5,622
2024-06-30 $1,306,073 5,634
2024-03-31 $1,214,859 5,634
2023-12-31 $1,457,910 5,634
2023-09-30 $1,449,279 5,639
2023-06-30 $1,611,966 5,659
2023-03-31 $1,573,371 5,659
2022-12-31 $29,907 108
2022-09-30 $42,987 161
2022-06-30 $39,360 193
2022-03-31 $40,645 193
2021-12-31 $92,369 385
2021-09-30 $52,919 187
2021-06-30 $67,868 196
2021-03-31 $48,117 172
2020-12-31 $143,977 588
2020-09-30 $148,648 524
2020-06-30 $1,070 4
2020-03-31 $1,265 4