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 |
|---|---|---|---|---|---|
|
California Public Employees Retirement System
Sacramento, CA |
Aug 13, 2025 Q2 2025 |
201,993
shares
|
$13.2 Million
0.01% of portfolio
|
Q2 2025
Added 5.75%
|
|
|
Edmond De Rothschild Holding S.A.
Chambesy, V8 |
Aug 12, 2025 Q2 2025 |
197,600
shares
|
$12.9 Million
0.13% of portfolio
|
Q2 2025
Added 59.1%
|
|
|
Stifel Financial Corp
St. Louis, MO |
Aug 14, 2025 Q2 2025 |
196,357
shares
|
$12.8 Million
0.01% of portfolio
|
Q2 2025
Reduced 2.28%
|
|
|
Tocqueville Asset Management L.P.
New York, NY |
Aug 12, 2025 Q2 2025 |
187,345
shares
|
$12.3 Million
0.12% of portfolio
|
Q2 2025
Reduced 0.03%
|
|
|
Sicart Associates LLC
|
Jul 18, 2025 Q2 2025 |
185,296
shares
|
$12.1 Million
2.68% of portfolio
|
Q2 2025
Reduced 0.19%
|
|
|
Credit Suisse Ag
Zurich, V8 |
May 10, 2024 Q1 2024 |
182,509
shares
|
$11.9 Million
0.01% of portfolio
|
Q1 2024
Reduced 3.8%
|
|
|
Rhenman & Partners Asset Management Ab
Stockholm, V7 |
Aug 13, 2025 Q2 2025 |
182,000
shares
|
$11.9 Million
0.94% of portfolio
|
Q2 2025
Added 124.69%
|
|
|
Rhumbline Advisers
Boston, MA |
Aug 12, 2025 Q2 2025 |
181,599
shares
|
$11.9 Million
0.01% of portfolio
|
Q2 2025
Reduced 3.52%
|
|
|
Sonora Investment Management Group, LLC
Tucson, AZ |
Jul 17, 2025 Q2 2025 |
163,172
shares
|
$10.7 Million
0.51% of portfolio
|
Q2 2025
Added 5.85%
|
|
|
Alyeska Investment Group, L.P.
Chicago, IL |
Aug 14, 2025 Q2 2025 |
159,008
shares
|
$10.4 Million
0.02% of portfolio
|
Q2 2025
New holding
|
|
|
Aquatic Capital Management LLC
Chicago, IL |
Aug 14, 2025 Q2 2025 |
158,086
shares
|
$10.3 Million
0.13% of portfolio
|
Q2 2025
Added 1.24%
|
|
|
State Board Of Administration Of Florida Retirement System
|
Aug 13, 2025 Q2 2025 |
153,895
shares
|
$10.1 Million
0.01% of portfolio
|
Q2 2025
Added 1.04%
|
|
|
Blb&B Advisors, LLC
|
Aug 04, 2025 Q2 2025 |
151,550
shares
|
$9.91 Million
0.29% of portfolio
|
Q2 2025
Reduced 0.43%
|
|
|
Tang Capital Management LLC
San Diego, CA |
Aug 14, 2025 Q2 2025 |
150,000
shares
|
$9.81 Million
0.35% of portfolio
|
Q1 2024
Reduced 25.0%
|
|
|
Universal Beteiligungs Und Servicegesellschaft Mb H
Frankfurt Am Main, 2M |
Aug 11, 2025 Q2 2025 |
149,839
shares
|
$9.8 Million
0.01% of portfolio
|
Q2 2025
Added 4.15%
|
|
|
Adar1 Capital Management, LLC
Austin, TX |
Aug 14, 2025 Q2 2025 |
148,461
shares
|
$9.71 Million
0.9% of portfolio
|
Q2 2025
New holding
|
|
|
J. Goldman & CO LP
New York, NY |
Aug 14, 2025 Q2 2025 |
147,682
shares
|
$9.66 Million
0.16% of portfolio
|
Q2 2025
Reduced 52.02%
|
|
|
California State Teachers Retirement System
West Sacramento, CA |
Aug 14, 2025 Q2 2025 |
145,104
shares
|
$9.49 Million
0.01% of portfolio
|
Q2 2025
Added 9.73%
|
|
|
Rafferty Asset Management, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
144,770
shares
|
$9.47 Million
0.02% of portfolio
|
Q2 2025
Reduced 17.86%
|
|
|
Sumitomo Mitsui Trust Holdings, Inc.
|
Jul 31, 2025 Q2 2025 |
139,739
shares
|
$9.14 Million
0.0% of portfolio
|
Q2 2025
Reduced 1.89%
|
|
|
Nikko Asset Management Americas, Inc.
|
Aug 11, 2025 Q2 2025 |
139,739
shares
|
$9.14 Million
0.06% of portfolio
|
Q2 2025
Reduced 1.89%
|
|
|
Squarepoint Ops LLC
New York, NY |
Aug 27, 2025 Q2 2025 |
134,395
shares
|
$8.79 Million
0.01% of portfolio
|
Q2 2025
Reduced 55.99%
|
|
|
Kennedy Capital Management, Inc.
St Louis, MO |
Aug 13, 2025 Q2 2025 |
132,045
shares
|
$8.64 Million
0.13% of portfolio
|
Q2 2025
Reduced 12.22%
|
|
|
Trexquant Investment LP
Stamford, CT |
Aug 12, 2025 Q2 2025 |
128,869
shares
|
$8.43 Million
0.06% of portfolio
|
Q2 2025
New holding
|
|
|
Exome Asset Management LLC
New York, NY |
Aug 15, 2025 Q2 2025 |
121,116
shares
|
$7.92 Million
3.56% of portfolio
|
Q2 2025
Reduced 10.69%
|