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 402 institutions that hold shares in the stock, with a total of 145 Million shares, which have been reported (via 13F filing form) to have a value of $6.13 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Vanguard Group Inc
Valley Forge, PA |
May 09, 2025 Q1 2025 |
16,383,934
shares
|
$691 Million
0.01% of portfolio
|
Q1 2025
Reduced 0.54%
|
|
|
T. Rowe Price Investment Management, Inc.
Baltimore, MD |
May 14, 2025 Q1 2025 |
16,175,533
shares
|
$682 Million
0.32% of portfolio
|
Q1 2025
Added 14.16%
|
|
|
Capital World Investors
Los Angeles, CA |
May 12, 2025 Q1 2025 |
12,361,994
shares
|
$521 Million
0.06% of portfolio
|
Q1 2025
Added 7.82%
|
|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
10,321,030
shares
|
$435 Million
0.01% of portfolio
|
Q2 2024
Added 5.62%
|
|
|
Wellington Management Group LLP
Boston, MA |
May 13, 2025 Q1 2025 |
8,416,421
shares
|
$355 Million
0.05% of portfolio
|
Q1 2025
New holding
|
|
|
Bellevue Group Ag
Kuesnacht, V8 |
May 14, 2025 Q1 2025 |
7,853,198
shares
|
$331 Million
5.5% of portfolio
|
Q1 2025
Reduced 0.2%
|
|
|
State Street Corp
Boston, MA |
May 15, 2025 Q1 2025 |
4,845,133
shares
|
$204 Million
0.01% of portfolio
|
Q1 2025
Reduced 10.71%
|
|
|
Deep Track Capital, LP
Greenwich, CT |
May 15, 2025 Q1 2025 |
4,564,207
shares
|
$192 Million
4.81% of portfolio
|
Q1 2025
Added 136.01%
|
|
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
May 15, 2025 Q1 2025 |
3,480,062
shares
|
$147 Million
0.02% of portfolio
|
Q1 2025
Added 60.67%
|
|
|
Price T Rowe Associates Inc
Baltimore, MD |
May 14, 2025 Q1 2025 |
3,265,034
shares
|
$138 Million
0.01% of portfolio
|
Q1 2025
Reduced 14.68%
|
|
|
Pictet Asset Management Sa
Geneva 73, V8 |
Aug 10, 2023 Q2 2023 |
3,095,670
shares
|
$131 Million
0.15% of portfolio
|
Q2 2023
Added 178.13%
|
|
|
Tweedy Browne Co.
Tweedy, Browne CO LLC | Stamford, Ct
|
May 15, 2025 Q1 2025 |
2,983,518
shares
|
$126 Million
8.43% of portfolio
|
Q1 2025
Reduced 8.17%
|
|
|
Geode Capital Management, LLC
Boston, MA |
May 13, 2025 Q1 2025 |
2,842,954
shares
|
$120 Million
0.01% of portfolio
|
Q1 2025
Added 5.79%
|
|
|
Orbimed Advisors LLC
San Diego, CA |
May 15, 2025 Q1 2025 |
2,540,136
shares
|
$107 Million
2.39% of portfolio
|
Q1 2025
Reduced 9.84%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
May 15, 2025 Q1 2025 |
2,092,011
shares
|
$88.2 Million
0.15% of portfolio
|
Q1 2025
Added 55.05%
|
|
|
Bvf Inc
San Francisco, CA |
May 15, 2025 Q1 2025 |
1,913,385
shares
|
$80.7 Million
2.54% of portfolio
|
Q1 2025
New holding
|
|
|
Ubs Group Ag
|
May 13, 2025 Q1 2025 |
1,890,602
shares
|
$79.7 Million
0.01% of portfolio
|
Q1 2025
Reduced 1.41%
|
|
|
Two Sigma Investments, LP
New York, NY |
May 15, 2025 Q1 2025 |
1,685,853
shares
|
$71.1 Million
0.12% of portfolio
|
Q1 2025
Added 82.96%
|
|
|
Macquarie Group LTD
Australia, C3 |
May 15, 2025 Q1 2025 |
1,667,194
shares
|
$70.3 Million
0.06% of portfolio
|
Q1 2025
Reduced 5.79%
|
|
|
Charles Schwab Investment Management Inc
San Francisco, CA |
May 09, 2025 Q1 2025 |
1,443,629
shares
|
$60.9 Million
0.01% of portfolio
|
Q1 2025
Reduced 2.55%
|
|
|
Bnp Paribas Asset Management Holding S.A.
|
May 13, 2025 Q1 2025 |
1,196,392
shares
|
$50.5 Million
0.1% of portfolio
|
Q1 2025
Added 10.74%
|
|
|
Morgan Stanley
New York, NY |
May 15, 2025 Q1 2025 |
1,144,181
shares
|
$48.3 Million
0.0% of portfolio
|
Q1 2025
Reduced 13.97%
|
|
|
Td Asset Management Inc
|
May 07, 2025 Q1 2025 |
1,100,466
shares
|
$46.4 Million
0.03% of portfolio
|
Q1 2025
Added 4.81%
|
|
|
Adage Capital Partners Gp, L.L.C.
Boston, MA |
May 15, 2025 Q1 2025 |
1,075,600
shares
|
$45.4 Million
0.06% of portfolio
|
Q1 2025
Added 291.13%
|
|
|
Groupama Asset Managment
Paris, I0 |
May 14, 2025 Q1 2025 |
1,069,211
shares
|
$45.1 Million
0.36% of portfolio
|
Q1 2025
Added 5.11%
|