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 |
|---|---|---|---|---|---|
|
Annis Gardner Whiting Capital Advisors, LLC
Tampa, FL |
Aug 11, 2025 Q2 2025 |
12,801
shares
|
$837,441
0.18% of portfolio
|
Q2 2025
Added 19.23%
|
|
|
Strategic Wealth Advisors Group, LLC
Sacramento, CA |
Nov 10, 2022 Q3 2022 |
12,729
shares
|
$832,731
0.02% of portfolio
|
Q3 2022
Added 5.29%
|
|
|
Paloma Partners Management CO
Greenwich, CT |
Aug 14, 2025 Q2 2025 |
12,557
shares
|
$821,478
0.12% of portfolio
|
Q2 2025
New holding
|
|
|
Virtus Investment Advisers, Inc.
Hartford, CT |
Aug 13, 2025 Q2 2025 |
12,476
shares
|
$816,179
0.17% of portfolio
|
Q2 2025
Added 28.61%
|
|
|
Northwestern Mutual Wealth Management CO
|
Aug 13, 2025 Q2 2025 |
12,244
shares
|
$801,002
0.0% of portfolio
|
Q2 2025
Reduced 0.92%
|
|
|
Sawtooth Solutions, LLC
|
Jan 29, 2024 Q4 2023 |
12,239
shares
|
$800,675
0.02% of portfolio
|
Q4 2023
Added 0.34%
|
|
|
Brown Advisory Inc
|
Aug 13, 2025 Q2 2025 |
12,191
shares
|
$797,535
0.0% of portfolio
|
Q2 2025
Added 1.37%
|
|
|
Vanguard Personalized Indexing Management, LLC
Oakland, CA |
Jul 25, 2025 Q2 2025 |
12,072
shares
|
$789,750
0.01% of portfolio
|
Q2 2025
Added 17.06%
|
|
|
Spider Rock Advisors, LLC
|
Nov 01, 2024 Q3 2024 |
12,036
shares
|
$787,395
0.01% of portfolio
|
Q3 2024
Added 0.08%
|
|
|
Vident Advisory, LLC
Alpharetta, GA |
Aug 14, 2025 Q2 2025 |
12,000
shares
|
$785,040
0.01% of portfolio
|
Q2 2025
New holding
|
|
|
Horizon Kinetics Asset Management LLC
|
Aug 12, 2025 Q2 2025 |
11,952
shares
|
$781,899
0.01% of portfolio
|
Q2 2025
Reduced 4.2%
|
|
|
Wiley Bros. Aintree Capital, LLC
|
Aug 14, 2025 Q2 2025 |
11,758
shares
|
$769,208
0.0% of portfolio
|
Q2 2025
Added 6.85%
|
|
|
Amalgamated Bank
New York, NY |
Aug 04, 2025 Q2 2025 |
11,526
shares
|
$754,030
0.0% of portfolio
|
Q2 2025
Added 9.01%
|
|
|
Pnc Financial Services Group, Inc.
Pittsburgh, PA |
Aug 08, 2025 Q2 2025 |
11,411
shares
|
$746,507
0.0% of portfolio
|
Q2 2025
Added 3.86%
|
|
|
Plancorp, LLC
|
Jul 15, 2025 Q2 2025 |
11,208
shares
|
$733,227
0.02% of portfolio
|
Q2 2025
Added 0.72%
|
|
|
Fox Run Management, L.L.C.
Greenwich, CT |
Aug 06, 2025 Q2 2025 |
10,988
shares
|
$718,834
0.08% of portfolio
|
Q2 2025
New holding
|
|
|
Suvretta Capital Management, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
10,800
shares
|
$706,536
0.01% of portfolio
|
Q1 2024
New holding
|
|
|
Harbor Advisors LLC
|
Aug 13, 2025 Q2 2025 |
10,500
shares
|
$686,910
0.07% of portfolio
|
Q4 2024
Added 90.91%
|
|
|
Cypress Capital, LLC
|
Aug 07, 2025 Q2 2025 |
10,000
shares
|
$654,200
0.11% of portfolio
|
Q3 2024
New holding
|
|
|
Perbak Capital Partners LLP
London, X0 |
Aug 14, 2025 Q2 2025 |
9,538
shares
|
$623,975
0.09% of portfolio
|
Q2 2025
New holding
|
|
|
Semanteon Capital Management, LP
Newton, MA |
Aug 11, 2025 Q2 2025 |
9,536
shares
|
$623,845
0.57% of portfolio
|
Q2 2025
Added 26.42%
|
|
|
Fred Alger Management, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
9,464
shares
|
$619,134
0.0% of portfolio
|
Q2 2025
New holding
|
|
|
Russell Investments Group, Ltd.
|
Aug 13, 2025 Q2 2025 |
9,265
shares
|
$606,116
0.0% of portfolio
|
Q2 2025
Added 61.05%
|
|
|
Prudential Financial Inc
Newark, NJ |
Aug 12, 2025 Q2 2025 |
9,254
shares
|
$605,396
0.0% of portfolio
|
Q2 2025
Added 47.76%
|
|
|
Sectoral Asset Management Inc
Montreal, A8 |
Aug 14, 2025 Q2 2025 |
9,205
shares
|
$602,191
0.41% of portfolio
|
Q2 2025
Reduced 2.49%
|