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MACKAY SHIELDS LLC IONS Position History
Ionis Pharmaceuticals, Inc. • Healthcare
Quarters held
16
Latest value
$31K
Q3 2026
Peak value
$36.4M
First seen
Q3 2025
Dollar value over time
Show data table
| Period | Position value |
|---|---|
| Q3 2025 | $3.3M |
| Q3 2025 | $117K |
| Q3 2025 | $2.1M |
| Q3 2025 | $36.4M |
| Q4 2025 | $3.7M |
| Q4 2025 | $126K |
| Q4 2025 | $15.8M |
| Q4 2025 | $801K |
| Q1 2026 | $14.9M |
| Q1 2026 | $759K |
| Q2 2026 | $3.6M |
| Q2 2026 | $112K |
| Q2 2026 | $44K |
| Q3 2026 | $2.6M |
| Q3 2026 | $77K |
| Q3 2026 | $31K |
Quarter-by-quarter history
Every disclosed snapshot of the position
| Quarter | Value | Shares | % Portfolio | Change |
|---|---|---|---|---|
| Q3 2026 | $31K | 28.0K | — | — |
| Q3 2026 | $77K | 70.0K | — | — |
| Q3 2026 | $2.6M | 2.36M | — | — |
| Q2 2026 | $44K | 28.0K | — | — |
| Q2 2026 | $112K | 72.0K | — | — |
| Q2 2026 | $3.6M | 2.31M | — | — |
| Q1 2026 | $759K | 503.0K | — | — |
| Q1 2026 | $14.9M | 9.91M | — | — |
| Q4 2025 | $801K | 503.0K | — | — |
| Q4 2025 | $15.8M | 9.91M | — | — |
| Q4 2025 | $126K | 92.0K | — | — |
| Q4 2025 | $3.7M | 2.68M | — | — |
| Q3 2025 | $36.4M | 26.30M | — | — |
| Q3 2025 | $2.1M | 1.49M | — | — |
| Q3 2025 | $117K | 95.0K | — | — |
| Q3 2025 | $3.3M | 2.72M | — | — |
Other funds holding IONS
$1.2B
$649.5M
$508.3M
$495.7M
$486.5M
$439.8M
$343.7M