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THOMPSON SIEGEL & WALMSLEY LLC

Position in BIIB — Biogen Inc.

CIK 1008322 RICHMOND, VA

Position in BIIB

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$28,198,422
-$17,330,300 QoQ
Shares Held
130,512
-47.4% QoQ
Ownership
0.088%
of shares outstanding
% of Portfolio
0.53%
of 13F equity value
Holder Rank
#90
of 1,031 holders
Holding Since
Mar 2020
22 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

THOMPSON SIEGEL & WALMSLEY LLC holds $141,170,482 across 11 Drug Manufacturers - General names. BIIB ranks #2 (20.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 BIIB
Biogen Inc.
This page
130,512 $28,198,422

All Filings in BIIB

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $28,198,422 130,512
2026-03-31 $45,528,722 248,343
2025-12-31 $40,267,743 228,807
2025-09-30 $42,926,395 306,442
2025-06-30 $40,567,830 323,018
2025-03-31 $35,230,279 257,456
2023-12-31 $101,696 393
2023-09-30 $101,004 393
2023-06-30 $111,946 393
2023-03-31 $122,611 441
2022-12-31 $122,121 441
2022-09-30 $117,747 441
2022-06-30 $89,937 441
2022-03-31 $92,874 441
2021-12-31 $105,804 441
2021-09-30 $126,213 446
2021-06-30 $154,436 446
2021-03-31 $128,964 461
2020-12-31 $128,061 523
2020-09-30 $4,447,534 15,678
2020-06-30 $4,680,518 17,494
2020-03-31 $4,688,750 14,820