Skip to main content

Russell Investments Group, Ltd.

Position in BIIB — Biogen Inc.

CIK 1692234 Seattle, WA

Position in BIIB

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$28,929,133
+$4,025,408 QoQ
Shares Held
133,894
-1.4% QoQ
Ownership
0.091%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#89
of 1,036 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 89% Shared 0% None 11%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

Russell Investments Group, Ltd. holds $3,483,940,248 across 16 Drug Manufacturers - General names. BIIB ranks #11 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in BIIB

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $28,929,133 133,894
2026-03-31 $24,903,725 135,841
2025-12-31 $20,958,115 119,087
2025-09-30 $19,800,022 141,348
2025-06-30 $30,399,431 242,053
2025-03-31 $28,414,680 207,649
2024-12-31 $18,619,992 121,763
2024-09-30 $25,480,264 131,450
2024-06-30 $27,247,655 117,538
2024-03-31 $31,617,391 146,628
2023-12-31 $31,898,575 123,270
2023-09-30 $39,730,658 154,588
2023-06-30 $53,402,819 187,477
2023-03-31 $71,743,136 258,041
2022-12-31 $76,620,715 276,689
2022-09-30 $90,046,818 337,254
2022-06-30 $52,792,108 258,861
2022-03-31 $30,524,784 144,942
2021-12-31 $24,968,470 104,070
2021-09-30 $30,124,282 106,450
2021-06-30 $41,641,389 120,257
2021-03-31 $44,772,307 160,044
2020-12-31 $48,465,870 197,933
2020-09-30 $65,105,973 229,505
2020-06-30 $56,470,169 211,064
2020-03-31 $94,140,131 297,554