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Westmount Partners, LLC

Position in IONS — Ionis Pharmaceuticals Inc

CIK 2051491 LOS ANGELES, CA

Position in IONS

as of Jun 30, 2026 · filed Jul 7, 2026
Position Value
$1,027,677
+$54,436 QoQ
Shares Held
12,961
0.0% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.34%
of 13F equity value
Holder Rank
#245
of 510 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IONS Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Westmount Partners, LLC holds $2,556,295 across 6 Biotechnology names. IONS ranks #1 (40.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 IONS
Ionis Pharmaceuticals Inc
This page
12,961 $1,027,677

All Filings in IONS

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,027,677 12,961
2026-03-31 $973,241 12,961
2025-12-31 $1,025,344 12,961
2025-09-30 $847,908 12,961
2025-06-30 $512,089 12,961
2025-03-31 $391,033 12,961
2024-12-31 $470,631 13,462
2024-09-30 $539,287 13,462
2024-06-30 $641,598 13,462
2024-03-31 $601,351 13,872
2023-12-31 $701,784 13,872
2023-09-30 $610,636 13,462
2023-06-30 $552,345 13,462
2023-03-31 $481,131 13,462
2022-12-31 $508,459 13,462