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BNP PARIBAS ARBITRAGE, SA

Position in BIIB — Biogen Inc.

CIK 1166588 NEW YORK, NY

Position in BIIB

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$86,360,896
-$3,053,815 QoQ
Shares Held
471,068
-7.3% QoQ
Ownership
0.319%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Derivatives in BIIB

reported options exposure · as of Mar 31, 2026
CallValue
$12,464
CallShares
68
PutValue
$11,732
PutShares
64

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

BNP PARIBAS ARBITRAGE, SA holds $3,714,565,895 across 18 Drug Manufacturers - General names. BIIB ranks #10 (2.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in BIIB

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $12,464 68
2026-03-31 $11,732 64
2026-03-31 $86,360,896 471,068
2025-12-31 $11,965 68
2025-12-31 $8,974 51
2025-12-31 $89,414,711 508,067
2025-09-30 $55,462,995 395,938
2025-06-30 $3,014 24
2025-06-30 $49,607,924 394,999
2025-03-31 $50,108,208 366,181
2024-12-31 $18,654 122
2024-12-31 $57,797,796 377,961
2024-09-30 $4,263 22
2024-09-30 $80,125,702 413,360
2024-09-30 $21,902 113
2024-06-30 $4,404 19
2024-06-30 $67,234,059 290,027
2024-06-30 $28,743 124
2024-03-31 $60,678,497 281,401
2024-03-31 $4,096 19
2024-03-31 $31,048 144
2023-12-31 $51,133,468 197,602
2023-12-31 $49,421 191
2023-12-31 $119,544 462
2023-09-30 $58,082 226
2023-09-30 $42,026,532 163,521
2023-09-30 $87,381 340
2023-06-30 $52,124 183
2023-06-30 $39,501,288 138,674
2023-06-30 $121,055 425
2023-03-31 $60,790,981 218,649
2023-03-31 $71,730 258
2023-03-31 $12,788 46
2022-12-31 $16,060 58
2022-12-31 $579,590 2,093
2022-12-31 $75,976,601 274,363
2022-09-30 $58,901,001 220,603
2022-09-30 $15,219 57
2022-09-30 $504,363 1,889
2022-06-30 $221,274 1,085
2022-06-30 $29,668,987 145,479
2022-03-31 $196,911 935
2022-03-31 $35,910,880 170,517
2021-12-31 $30,947 129
2021-12-31 $39,468,758 164,508
2021-12-31 $332,766 1,387
2021-09-30 $27,778,298 98,160
2021-09-30 $369,014 1,304
2021-09-30 $36,503 129
2021-06-30 $292,248 844