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Ionis Pharmaceuticals Inc

IONS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0000874015

In the last 90 days, Ionis Pharmaceuticals Inc insiders filed 1 open-market purchase and 4 sales; 515 institutions reported holding it in 13F filings for Q2 2026, worth $14.3B in total; ARK Invest is the only superinvestor holding it.

Q3 2024 vs. Q2 2024

How the institutions holding Ionis Pharmaceuticals Inc changed between Q2 2024 and Q3 2024.

All holders in Q3 2024All holders in Q2 2024

13F holders of IONS: Q2 2024 compared with Q3 2024
MeasureQ2 2024Of which not filed for Q3 2024Q3 2024Change
Holders3574354+1
Shares143.3M10.4M157.5M+24.6M (+18.5%)
Value$6.83B$494.3M$6.31B−$23.0M (−0.4%)

4 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (53)

Institutions that held Ionis Pharmaceuticals Inc at the end of Q3 2024 but not at the end of Q2 2024.

Institutions new to IONS in Q3 2024
InstitutionSharesValue% of portfolio
BlackRock, Inc.10,813,023$433.2M0.01%
EcoR1 Capital, LLC500,000$20.0M0.69%
Ghisallo Capital Management LLC400,000$16.0M0.79%
Voloridge Investment Management, LLC380,641$15.2M0.06%
Siren, L.L.C.250,000$10.0M0.50%
Twinbeech Capital LP235,477$9.43M0.18%
Driehaus Capital Management LLC229,969$9.21M0.08%
Baker Bros. Advisors LP223,470$8.95M0.09%
Alyeska Investment Group, L.P.168,951$6.77M0.03%
HBK Investments L P60,000$2.40M0.04%
Polar Asset Management Partners Inc.35,400$1.42M0.03%
Capital Fund Management S.A.30,691$1.23M0.01%
Landscape Capital Management, L.L.C.25,435$1.02M0.10%
Castle Hook Partners LP23,940$959.0K0.03%
Y-Intercept (Hong Kong) Ltd20,141$806.8K0.05%
Monashee Investment Management LLC20,000$801.2K0.09%
Seven Eight Capital, LP17,394$696.8K0.06%
Capula Management Ltd17,365$695.6K0.01%
XTX Topco Ltd16,805$673.2K0.05%
Aigen Investment Management, LP11,612$465.2K0.09%
Canada Pension Plan Investment Board11,200$448.7K0.00%
Advent Capital Management10,000$400.6K0.01%
Troluce Capital Advisors LLC10,000$400.6K0.07%
Wiley Bros.-Aintree Capital, LLC9,606$384.8K0.01%
Ariadne Wealth Management, LP9,147$351.8K0.19%
SG Americas Securities, LLC7,419$297.0K0.00%
Acadian Asset Management LLC6,328$253.0K0.00%
Colony Group, LLC5,696$228.2K0.00%
Harbor Advisors LLC5,500$220.3K0.04%
O'Shaughnessy Asset Management, LLC5,273$203.7K0.00%
FORA Capital, LLC5,081$203.5K0.02%
Sandia Investment Management LP5,000$200.3K0.32%
Torno Capital, LLC5,000$200.3K0.26%
Walleye Trading LLC3,613$144.7K0.00%
Sterling Capital Management LLC3,045$122.0K0.00%
Quantbot Technologies LP1,267$50.8K0.00%
Reuter James Wealth Management, LLC1,049$42.0K0.01%
Capital Performance Advisors LLP1,000$40.1K0.01%
Elequin Capital LP437$17.5K0.00%
ORG Wealth Partners, LLC400$16.0K0.01%
Claris Advisors, LLC250$10.0K0.00%
Exchange Traded Concepts, LLC195$7.81K0.00%
First Horizon Advisors, Inc.112$4.49K0.00%
Wolff Wiese Magana LLC110$4.41K0.00%
Bryn Mawr Trust Co92$3.69K0.00%
Skopos Labs, Inc.84$3.37K0.00%
Hemington Wealth Management84$3.00K0.00%
Leonteq Securities AG63$2.52K0.00%
Clear Investment Research, LLC51$2.04K0.00%
CoreCap Advisors, LLC26$1.04K0.00%
Voisard Asset Management Group, Inc.10$4010.00%
MV Capital Management, Inc.2$810.00%
AdvisorNet Financial, Inc1$400.00%

Sold out (52)

Institutions that held Ionis Pharmaceuticals Inc at the end of Q2 2024 and filed for Q3 2024 without it.

Institutions that sold out of IONS in Q3 2024
InstitutionShares, Q2 2024Value, Q2 2024
Balyasny Asset Management LLC1,077,321$51.3M
Integral Health Asset Management, LLC250,000$11.9M
ExodusPoint Capital Management, LP209,194$9.97M
Zimmer Partners, LP200,000$9.53M
Parkman Healthcare Partners LLC161,705$7.71M
HRT Financial LP159,685$7.61M
Point72 Asset Management, L.P.137,210$6.54M
Verition Fund Management LLC120,814$5.76M
Avidity Partners Management LP93,000$4.43M
Bank of Nova Scotia51,879$2.47M
DRW Securities, LLC50,956$2.43M
Cubist Systematic Strategies, LLC35,311$1.68M
Inceptionr LLC17,289$824.0K
Simplicity Wealth,LLC16,340$778.8K
Parallax Volatility Advisers, L.P.12,310$586.7K
Lisanti Capital Growth, LLC10,845$516.9K
Gsa Capital Partners LLP8,231$392.0K
Pearl River Capital, LLC6,187$294.9K
Jump Financial, LLC6,184$294.7K
Oppenheimer Asset Management Inc.5,777$275.3K
Readystate Asset Management LP5,600$266.9K
Perkins Capital Management Inc5,550$265.0K
Fox Run Management, L.L.C.5,421$258.4K
HSBC Holdings PLC5,326$252.2K
Stephens Inc5,138$244.9K
Beaird Harris Wealth Management, LLC5,000$238.3K
Kestra Advisory Services, LLC5,491$236.2K
Farallon Capital Management, L.L.C.4,800$228.8K
Point72 (DIFC) Ltd4,694$223.7K
Mitchell & Pahl Private Wealth, LLC4,540$216.4K
Wealth Enhancement Advisory Services, LLC4,508$214.9K
Prospera Financial Services Inc4,451$212.1K
Checchi Capital Advisers, LLC4,234$201.8K
Redwood Wealth Management Group, LLC2,408$114.8K
Pacer Advisors, Inc.960$45.8K
nVerses Capital, LLC600$28.6K
Pingora Partners LLC500$23.8K
Banque Cantonale Vaudoise400$19.0K
ORG Partners LLC400$18.8K
Natixis163$7.77K
Ashton Thomas Private Wealth, LLC150$7.15K
Unique Wealth Strategies, LLC140$6.07K
Family Firm, Inc.91$4.34K
Orion Capital Management LLC80$3.81K
National Bank of Canada80$3.75K
SYSTM Wealth Solutions LLC73$3.48K
Innealta Capital, LLC47$2.24K
Healthcare of Ontario Pension Plan Trust Fund46$2.19K
Great Lakes Retirement, Inc.43$2.05K
Bessemer Group Inc52$2.00K
Kelly Financial Services LLC30$1.43K
Proequities, Inc.26$1.24K

Not filed for Q3 2024 yet (4)

Institutions that held Ionis Pharmaceuticals Inc at the end of Q2 2024 and haven't filed a 13F for Q3 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IONS in Q2 2024 that haven't filed for Q3 2024
InstitutionShares, Q2 2024Value, Q2 2024
BlackRock Inc.10,321,030$491.9M
Susquehanna Fundamental Investments, LLC45,574$2.17M
Buckingham Strategic Wealth, LLC5,251$250.3K
Institutional & Family Asset Management, LLC361$17.2K