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GUARDIAN INVESTMENT MANAGEMENT

Position in BIIB — Biogen Inc.

CIK 1365474 TIBURON, CA

Position in BIIB

as of Jun 30, 2026 · filed Jul 20, 2026
Position Value
$1,188,330
+$180,015 QoQ
Shares Held
5,500
0.0% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.81%
of 13F equity value
Holder Rank
#426
of 1,031 holders
Holding Since
Mar 2020
26 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

GUARDIAN INVESTMENT MANAGEMENT holds $13,312,413 across 7 Drug Manufacturers - General names. BIIB ranks #4 (8.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 BIIB
Biogen Inc.
This page
5,500 $1,188,330

All Filings in BIIB

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,188,330 5,500
2026-03-31 $1,008,315 5,500
2025-12-31 $950,346 5,400
2025-09-30 $756,432 5,400
2025-06-30 $665,627 5,300
2025-03-31 $998,932 7,300
2024-12-31 $1,116,316 7,300
2024-09-30 $1,970,383 10,165
2024-06-30 $2,356,450 10,165
2024-03-31 $2,191,878 10,165
2023-12-31 $2,630,397 10,165
2023-09-30 $2,586,805 10,065
2023-06-30 $2,867,015 10,065
2023-03-31 $2,992,992 10,765
2022-12-31 $2,814,891 10,165
2022-09-30 $2,714,055 10,165
2022-06-30 $2,073,050 10,165
2022-03-31 $2,140,749 10,165
2021-12-31 $2,438,786 10,165
2021-09-30 $2,876,593 10,165
2021-06-30 $3,692,969 10,665
2021-03-31 $3,011,508 10,765
2020-12-31 $2,660,403 10,865
2020-09-30 $2,968,711 10,465
2020-06-30 $2,799,910 10,465
2020-03-31 $3,279,278 10,365