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ISI · Unknown

Ionis Pharmaceuticals Inc

USA Unknown Filing: 2026-03-31
33/100
Smart-money confidence1 of 3 sources positive
Weak — few signals

No standout activity across the feeds we track.

Hedge funds
44
Congress
No data
Insiders
No data
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s.  ·  how the score works
Exchange
YHD
Who's behind the signal
Every informed buyer we can see on ISI, across all three feeds.
Hedge funds · 8
Millennium Management (Englander) Increased +1028%
D.E. Shaw & Co Increased +29%
Gotham Asset Mgmt (Greenblatt) Increased +129%
Tudor Investment (Paul Tudor Jones) Increased +1218%
AQR Capital Management Increased +53%
Tweedy Browne Decreased −8%
+2 more in the full breakdown below ↓
Congress · 0
No congressional trades on record.
Insiders
No significant Form 4 insider activity in the window.
Not a model pick — but on our radar. IONIS PHARMACEUTICALS INC isn't in the top-10 model right now, but 8 tracked investors hold it. Everything below is real signal from public filings — treat this as a watch candidate, not a conviction call.
8
Investors
0
New positions
5
Increasing
3
Decreasing
0
Unchanged
Price History
Loading price data...
Return: High: Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Millennium Management (Englander)
Trust weight: 1.0×
Increased +1028%
% of portfolio
0.1%
Position change
+1028%
0.1% of Millennium Management's portfolio
D.E. Shaw & Co
Trust weight: 1.0×
Increased +29%
% of portfolio
0.0%
Position change
+29%
0.0% of D.E. Shaw & Co's portfolio
Gotham Asset Mgmt (Greenblatt)
Trust weight: 1.1×
Increased +129%
% of portfolio
0.0%
Position change
+129%
0.0% of Gotham Asset Mgmt's portfolio
Tudor Investment (Paul Tudor Jones)
Trust weight: 1.2×
Increased +1218%
% of portfolio
0.0%
Position change
+1218%
0.0% of Tudor Investment's portfolio
AQR Capital Management
Trust weight: 1.0×
Increased +53%
% of portfolio
0.0%
Position change
+53%
0.0% of AQR Capital Management's portfolio
Tweedy Browne
Trust weight: 1.2×
Decreased −8%
% of portfolio
13.6%
Position change
−8%
13.6% of Tweedy Browne's portfolio
ARK Invest (Cathie Wood)
Trust weight: 1.3×
Decreased −32%
% of portfolio
0.2%
Position change
−32%
0.2% of ARK Invest's portfolio
Citadel Advisors
Trust weight: 1.0×
Decreased −56%
% of portfolio
0.1%
Position change
−56%
0.1% of Citadel Advisors's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to IONIS PHARMACEUTICALS INC
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell IONIS PHARMACEUTICALS INC or any security.

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