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MILLENNIUM MANAGEMENT LLC

Position in IONS — Ionis Pharmaceuticals Inc

CIK 1273087 NEW YORK, NY

Position in IONS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$22,904,660
-$56,052,925 QoQ
Shares Held
288,872
-72.5% QoQ
Ownership
0.174%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#78
of 513 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IONS Over Time

Shares Held

Position Value (USD)

Derivatives in IONS

reported options exposure · as of Jun 30, 2026
CallValue
$20,417,175
CallShares
257,500
PutValue
$0
PutShares
0

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 Biotechnology

Healthcare · as of Jun 30, 2026

MILLENNIUM MANAGEMENT LLC holds $4,631,421,099 across 322 Biotechnology names. IONS ranks #45 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IONS

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28 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $20,417,175 257,500
2026-06-30 $22,904,660 288,872
2026-03-31 $78,957,585 1,051,506
2025-12-31 $7,377,956 93,262
2025-09-30 $50,999,469 779,570
2025-06-30 $104,682,811 2,649,527
2025-03-31 $19,169,112 635,370
2024-12-31 $27,066,556 774,215
2024-09-30 $17,254,763 430,723
2024-06-30 $6,110,726 128,215
2024-03-31 $25,280,809 583,179
2023-12-31 $45,041,541 890,325
2023-09-30 $19,827,899 437,123
2023-06-30 $17,188,000 418,913
2023-03-31 $1,621,273 45,363
2022-12-31 $4,362,661 115,506
2022-09-30 $837,229 18,929
2022-06-30 $11,869,167 320,615
2022-03-31 $7,081,714 191,191
2021-12-31 $49,392,089 1,623,138
2021-09-30 $9,486,923 282,854
2021-06-30 $31,746,137 795,842
2021-03-31 $4,496,000 100,000
2021-03-31 $28,381,629 631,264
2020-12-31 $29,999,502 530,589
2020-09-30 $5,170,009 108,957
2020-06-30 $788,236 13,369
2020-03-31 $3,384,869 71,592