Institutional Ownership Ionis Pharmaceuticals Inc (IONS)
This table provides information about the institutional ownership of Ionis Pharmaceuticals Inc (IONS). We have compiled data on the 413 institutions that hold shares in the stock, with a total of 149 Million shares, which have been reported (via 13F filing form) to have a value of $9.73 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Jefferies Financial Group Inc.
New York, NY |
Aug 12, 2025 Q2 2025 |
22,381
shares
|
$1.46 Million
0.01% of portfolio
|
Q2 2025
Reduced 2.01%
|
|
|
Graham Capital Management, L.P.
Rowayton, CT |
Aug 14, 2025 Q2 2025 |
20,935
shares
|
$1.37 Million
0.02% of portfolio
|
Q2 2025
New holding
|
|
|
Nicollet Investment Management, Inc.
Minneapolis, MN |
Aug 07, 2025 Q2 2025 |
20,747
shares
|
$1.36 Million
0.27% of portfolio
|
Q2 2025
Reduced 3.28%
|
|
|
Victory Capital Management Inc
|
Aug 13, 2025 Q2 2025 |
18,516
shares
|
$1.21 Million
0.0% of portfolio
|
Q2 2025
Reduced 0.67%
|
|
|
Bleakley Financial Group, LLC
Fairfield, NJ |
Jul 30, 2025 Q2 2025 |
18,129
shares
|
$1.19 Million
0.02% of portfolio
|
Q2 2025
Reduced 18.65%
|
|
|
Assenagon Asset Management S.A.
|
Jul 11, 2025 Q2 2025 |
17,654
shares
|
$1.15 Million
0.0% of portfolio
|
Q2 2025
New holding
|
|
|
Quantinno Capital Management LP
New York, NY |
Aug 14, 2025 Q2 2025 |
17,542
shares
|
$1.15 Million
0.0% of portfolio
|
Q2 2025
Added 106.01%
|
|
|
Fieldview Capital Management, LLC
Niles, MI |
Aug 14, 2025 Q2 2025 |
17,306
shares
|
$1.13 Million
0.1% of portfolio
|
Q2 2025
New holding
|
|
|
Summit Tx Capital, L.P.
Fort Worth, TX |
Aug 14, 2025 Q2 2025 |
17,149
shares
|
$1.12 Million
0.03% of portfolio
|
Q2 2025
Reduced 51.15%
|
|
|
North Star Asset Management Inc
|
Aug 12, 2025 Q2 2025 |
16,610
shares
|
$1.09 Million
0.03% of portfolio
|
Q2 2025
Added 22.04%
|
|
|
Bayesian Capital Management, LP
Brooklyn, NY |
Aug 14, 2025 Q2 2025 |
16,600
shares
|
$1.09 Million
0.11% of portfolio
|
Q2 2025
Added 95.29%
|
|
|
E Fund Management Co., Ltd.
Guangzhou, F4 |
Aug 14, 2025 Q2 2025 |
16,160
shares
|
$1.06 Million
0.03% of portfolio
|
Q2 2025
Reduced 1.89%
|
|
|
Public Employees Retirement Association Of Colorado
Denver, CO |
Aug 11, 2025 Q2 2025 |
15,589
shares
|
$1.02 Million
0.0% of portfolio
|
Q2 2024
Reduced 5.94%
|
|
|
Significant Wealth Partners LLC
Cary, IL |
Jul 15, 2025 Q2 2025 |
15,504
shares
|
$1.01 Million
0.3% of portfolio
|
Q2 2025
Added 13.96%
|
|
|
Raymond James Financial Services Advisors, Inc.
St. Petersburg, FL |
Oct 18, 2024 Q3 2024 |
14,570
shares
|
$953,169
0.0% of portfolio
|
Q3 2024
Reduced 4.99%
|
|
|
Corton Capital Inc.
Carrying Place, A6 |
Aug 05, 2025 Q2 2025 |
14,424
shares
|
$943,618
0.7% of portfolio
|
Q2 2025
New holding
|
|
|
Vestmark Advisory Solutions, Inc.
|
Aug 06, 2025 Q2 2025 |
14,341
shares
|
$938,188
0.01% of portfolio
|
Q2 2025
New holding
|
|
|
Joel Greenblatt
Gotham Asset Management, LLC | New York, Ny
|
Aug 14, 2025 Q2 2025 |
14,279
shares
|
$934,132
0.0% of portfolio
|
Q2 2025
New holding
|
|
|
Commonwealth Equity Services, LLC
|
Aug 06, 2025 Q2 2025 |
13,942
shares
|
$912,085
0.0% of portfolio
|
Q2 2025
Reduced 14.98%
|
|
|
Chartwell Investment Partners, LLC
|
Nov 04, 2024 Q3 2024 |
13,759
shares
|
$900,113
0.02% of portfolio
|
Q2 2024
Added 17.04%
|
|
|
Envestnet Asset Management Inc
|
Jul 31, 2025 Q2 2025 |
13,544
shares
|
$886,048
0.0% of portfolio
|
Q2 2025
Reduced 9.94%
|
|
|
Peak6 Investments LLC
Chicago, IL |
Nov 13, 2024 Q3 2024 |
13,500
shares
|
$883,170
0.0% of portfolio
|
Q3 2024
Reduced 10.01%
|
|
|
Iq Eq Fund Management (Ireland) LTD
|
Aug 01, 2025 Q2 2025 |
13,263
shares
|
$867,665
0.05% of portfolio
|
Q2 2025
Added 64.57%
|
|
|
Marshall Wace, LLP
London, X0 |
Aug 13, 2025 Q2 2025 |
13,100
shares
|
$857,002
0.0% of portfolio
|
Q2 2025
Added 43.92%
|
|
|
Westmount Partners, LLC
Los Angeles, CA |
Jul 09, 2025 Q2 2025 |
12,961
shares
|
$847,908
0.14% of portfolio
|
Q1 2025
Reduced 3.72%
|