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Sumitomo Mitsui Trust Group, Inc.

Position in BIIB — Biogen Inc.

CIK 1475365 CHIYODA-KU, TOKYO, M0

Position in BIIB

as of Jun 30, 2026 · filed Jul 30, 2026
Position Value
$74,890,069
+$9,571,240 QoQ
Shares Held
346,617
-2.7% QoQ
Ownership
0.235%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#50
of 1,036 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

Sumitomo Mitsui Trust Group, Inc. holds $7,122,175,515 across 9 Drug Manufacturers - General names. BIIB ranks #9 (1.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in BIIB

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $74,890,069 346,617
2026-03-31 $65,318,829 356,291
2025-12-31 $65,226,645 370,627
2025-09-30 $58,218,508 415,609
2025-06-30 $52,098,499 414,830
2025-03-31 $57,056,806 416,960
2024-12-31 $59,867,568 391,496
2024-09-30 $71,745,611 370,128
2024-06-30 $83,657,810 360,874
2024-03-31 $83,337,113 386,482
2023-12-31 $99,135,304 383,102
2023-09-30 $97,280,598 378,509
2023-06-30 $108,311,648 380,241
2023-03-31 $122,749,410 441,497
2022-12-31 $143,941,631 519,795
2022-09-30 $152,025,795 569,385
2022-06-30 $132,253,050 648,490
2022-03-31 $111,912,840 531,400
2021-12-31 $132,436,079 552,001
2021-09-30 $131,765,520 465,619
2021-06-30 $171,308,425 494,725
2021-03-31 $148,936,662 532,392
2020-12-31 $147,472,077 602,271
2020-09-30 $191,222,447 674,078
2020-06-30 $204,281,916 763,528
2020-03-31 $252,343,738 797,597