3 tracked superinvestors hold IONIS PHARMACEUTICALS INC (IONS), worth $1.3B combined, led by Steve Wymer. Smart money is holding IONS as of the latest 13F filings.
Current price
$64.27
Ionis Pharmaceuticals, Inc. discovers and develops RNA-targeted therapeutics in the United States. The company offers SPINRAZA for spinal muscular atrophy (SMA) in pediatric and adult patients; TEGSEDI, an injection for the treatment of polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults; and WAYLIVRA, a treatment for familial chylomicronemia syndrome and familial partial…
Market cap
$12.4B
P/E
-37.45
Div yield
0.0%
Revenue YoY
33.9%
Analyst target
$107
Snapshot for context. For deep analysis use a stock screener — this page is about who owns it.
Superinvestors holding
3
tracked 13F / N-PORT funds
Combined value
$1.3B
disclosed long exposure
Tier-1 conviction
0
concentrated holders
Net this quarter
0
1 buying · 1 selling
Smart money is holding IONS steady this quarter — buys and sells are balanced.
IONIS PHARMACEUTICALS INC (IONS) appears mainly in diversified and quant books here (3 funds, $1.3B combined) rather than in concentrated conviction portfolios — read the holders below with that in mind.
The largest position belongs to Steve Wymer at 0.9% of their book — no single tracked manager treats it as an outsized, top-weighted bet.
No tracked fund opened a new position this quarter; 1 added and 1 trimmed, a net add.
| Investor | Move | % of their portfolio | Position value |
|---|---|---|---|
| Held | 0.9% | $658M | |
| Added | 0.4% | $440M | |
| Trimmed | 1.1% | $207M |
Tier badge = signal quality: 1 concentrated conviction · 2 quant/multi (context) · 3 retail & diversified. Only Tier 1 holdings feed the consensus signal.
Which superinvestors own IONS?
3 tracked funds hold IONIS PHARMACEUTICALS INC (IONS), the largest being Steve Wymer (Fidelity Growth Company) at 0.9% of its 13F portfolio. 0 of them are concentrated Tier-1 conviction managers.
Is smart money buying or selling IONS?
In the most recent 13F quarter, 1 tracked fund added or opened IONS and 1 trimmed it.
How much IONS do tracked funds hold?
Combined disclosed long exposure to IONS across tracked superinvestors is $1.3B as of the Mar 2026 filings.
Holdings aggregated from the latest SEC 13F & N-PORT filings via FMP · Mar 2026 quarter. Long equity positions only, reported with up to a 45-day delay — for activity between filings see real-time moves. Not financial advice.