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 |
|---|---|---|---|---|---|
|
Spider Rock Advisors, LLC
|
Nov 01, 2024 Q3 2024 |
12,036
shares
|
$507,558
0.01% of portfolio
|
Q3 2024
Added 0.08%
|
|
|
Brown Advisory Inc
|
Apr 29, 2025 Q1 2025 |
12,026
shares
|
$507,136
0.0% of portfolio
|
Q1 2025
Reduced 5.53%
|
|
|
Sih Partners, Lllp
Wilmington, DE |
May 15, 2025 Q1 2025 |
11,999
shares
|
$505,997
0.01% of portfolio
|
Q1 2025
New holding
|
|
|
Fora Capital, LLC
Miami, FL |
May 14, 2025 Q1 2025 |
11,570
shares
|
$487,906
0.04% of portfolio
|
Q1 2025
New holding
|
|
|
Twin Tree Management, LP
Dallas, TX |
May 15, 2025 Q1 2025 |
11,385
shares
|
$480,105
0.0% of portfolio
|
Q1 2025
Reduced 87.19%
|
|
|
Plancorp, LLC
|
Jul 15, 2025 Q2 2025 |
11,208
shares
|
$472,641
0.02% of portfolio
|
Q2 2025
Added 0.72%
|
|
|
Wiley Bros. Aintree Capital, LLC
|
May 15, 2025 Q1 2025 |
11,004
shares
|
$464,038
0.0% of portfolio
|
Q1 2025
Added 6.66%
|
|
|
Pnc Financial Services Group, Inc.
Pittsburgh, PA |
May 09, 2025 Q1 2025 |
10,987
shares
|
$463,321
0.0% of portfolio
|
Q1 2025
Reduced 0.06%
|
|
|
Suvretta Capital Management, LLC
New York, NY |
May 15, 2025 Q1 2025 |
10,800
shares
|
$455,436
0.01% of portfolio
|
Q1 2024
New holding
|
|
|
Annis Gardner Whiting Capital Advisors, LLC
Tampa, FL |
May 09, 2025 Q1 2025 |
10,736
shares
|
$452,737
0.14% of portfolio
|
Q4 2024
Added 8.05%
|
|
|
Amalgamated Bank
New York, NY |
Apr 25, 2025 Q1 2025 |
10,573
shares
|
$445,863
0.0% of portfolio
|
Q1 2025
Added 2.73%
|
|
|
Harbor Advisors LLC
|
May 15, 2025 Q1 2025 |
10,500
shares
|
$442,785
0.06% of portfolio
|
Q4 2024
Added 90.91%
|
|
|
Principal Financial Group Inc
Des Moines, IA |
Apr 28, 2025 Q1 2025 |
10,447
shares
|
$440,549
0.0% of portfolio
|
Q1 2025
Reduced 23.27%
|
|
|
Capula Management LTD
Grand Cayman, E9 |
May 14, 2025 Q1 2025 |
10,382
shares
|
$437,808
0.0% of portfolio
|
Q1 2025
New holding
|
|
|
Vanguard Personalized Indexing Management, LLC
Oakland, CA |
May 13, 2025 Q1 2025 |
10,313
shares
|
$434,899
0.0% of portfolio
|
Q1 2025
Reduced 15.96%
|
|
|
Teza Capital Management LLC
Chicago, IL |
May 15, 2025 Q1 2025 |
10,244
shares
|
$431,989
0.14% of portfolio
|
Q1 2025
Added 20.16%
|
|
|
Man Group PLC
London, X0 |
May 15, 2025 Q1 2025 |
10,033
shares
|
$423,091
0.0% of portfolio
|
Q1 2025
Added 20.66%
|
|
|
Cypress Capital, LLC
|
Apr 25, 2025 Q1 2025 |
10,000
shares
|
$421,700
0.09% of portfolio
|
Q3 2024
New holding
|
|
|
Tower Research Capital LLC (Trc)
New York, NY |
May 15, 2025 Q1 2025 |
9,873
shares
|
$416,344
0.01% of portfolio
|
Q1 2025
Reduced 30.26%
|
|
|
Virtus Investment Advisers, Inc.
Hartford, CT |
May 14, 2025 Q1 2025 |
9,701
shares
|
$409,091
0.1% of portfolio
|
Q1 2025
New holding
|
|
|
Sectoral Asset Management Inc
Montreal, A8 |
May 15, 2025 Q1 2025 |
9,440
shares
|
$398,084
0.32% of portfolio
|
Q1 2025
Added 31.11%
|
|
|
Walleye Trading LLC
Plymouth, MN |
May 14, 2025 Q1 2025 |
9,361
shares
|
$394,753
0.0% of portfolio
|
Q1 2025
Reduced 5.64%
|
|
|
Met Life Investment Management, LLC
Whippany, NJ |
May 14, 2025 Q1 2025 |
9,144
shares
|
$385,602
0.0% of portfolio
|
Q1 2025
Reduced 0.17%
|
|
|
Marshall Wace, LLP
London, X0 |
May 15, 2025 Q1 2025 |
9,102
shares
|
$383,831
0.0% of portfolio
|
Q1 2025
Reduced 98.88%
|
|
|
Exchange Traded Concepts, LLC
|
Jul 10, 2025 Q2 2025 |
8,802
shares
|
$371,180
0.0% of portfolio
|
Q2 2025
Added 171.33%
|