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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.

13F holders, Q2 2022

Institutional positions in Ionis Pharmaceuticals Inc as of Jun 30, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
351
+22 vs. Q1 2022
Shares held
124.6M
+27.5K (0.0%) vs. Q1 2022
Total value
$4.61B
−$315.6K (0.0%) vs. Q1 2022
New holders
53
89 more added
Sold out
31
130 more reduced

4 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IONS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2022: 351 institutions
Q1 2021: 365 institutionsQ2 2021: 338 institutionsQ3 2021: 326 institutionsQ4 2021: 341 institutionsQ1 2022: 333 institutionsQ2 2022: 351 institutionsQ3 2022: 350 institutionsQ4 2022: 339 institutionsQ1 2023: 315 institutionsQ2 2023: 305 institutionsQ3 2023: 312 institutionsQ4 2023: 365 institutionsQ1 2024: 361 institutionsQ2 2024: 357 institutionsQ3 2024: 354 institutionsQ4 2024: 356 institutionsQ1 2025: 344 institutionsQ2 2025: 363 institutionsQ3 2025: 437 institutionsQ4 2025: 494 institutionsQ1 2026: 497 institutionsQ2 2026: 515 institutions
Value heldQ2 2022: $4.61B
Q1 2021: $5.55BQ2 2021: $4.96BQ3 2021: $4.08BQ4 2021: $3.75BQ1 2022: $4.63BQ2 2022: $4.61BQ3 2022: $5.59BQ4 2022: $4.93BQ1 2023: $4.69BQ2 2023: $5.60BQ3 2023: $6.35BQ4 2023: $7.21BQ1 2024: $6.17BQ2 2024: $6.83BQ3 2024: $6.31BQ4 2024: $5.61BQ1 2025: $5.03BQ2 2025: $6.67BQ3 2025: $11.0BQ4 2025: $13.5BQ1 2026: $13.0BQ2 2026: $14.3B
Institutions holding IONS and their total value by quarter
QuarterHoldersValue
Q2 2026515$14.3B
Q1 2026497$13.0B
Q4 2025494$13.5B
Q3 2025437$11.0B
Q2 2025363$6.67B
Q1 2025344$5.03B
Q4 2024356$5.61B
Q3 2024354$6.31B
Q2 2024357$6.83B
Q1 2024361$6.17B
Q4 2023365$7.21B
Q3 2023312$6.35B
Q2 2023305$5.60B
Q1 2023315$4.69B
Q4 2022339$4.93B
Q3 2022350$5.59B
Q2 2022351$4.61B
Q1 2022333$4.63B
Q4 2021341$3.75B
Q3 2021326$4.08B
Q2 2021338$4.96B
Q1 2021365$5.55B

Institutions, Q2 2022

Shares, value and share of portfolio for each institution holding Ionis Pharmaceuticals Inc; share changes are against Q1 2022.

Institutions holding IONS in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Sectoral Asset Management Inc4,450$165.0K0.03%+4,450New
Group One Trading, L.P.4,654$172.0K0.00%+4,654New
Mercer Global Advisors Inc5,396$200.0K0.00%+5,396New
Seven Eight Capital, LP5,457$202.0K0.08%−10,339−65.5%Reduced
Gsa Capital Partners LLP5,475$203.0K0.03%+5,475New
Allspring Global Investments Holdings, LLC5,519$204.0K0.00%−81,766−93.7%Reduced
M&T Bank Corp5,501$204.0K0.00%+5,501New
Berkshire Asset Management LLC5,596$207.0K0.01%−4,143−42.5%Reduced
Lazard Asset Management LLC5,625$207.0K0.00%+568+11.2%Added
First Republic Investment Management, Inc.6,016$223.0K0.00%−90−1.5%Reduced
JustInvest LLC6,083$225.0K0.01%+487+8.7%Added
Parametrica Management Ltd6,165$228.0K0.25%+6,165New
Walleye Capital LLC6,369$236.0K0.01%+6,369New
First Foundation Advisors6,412$237.0K0.01%−22,718−78.0%Reduced
Two Sigma Securities, LLC6,573$243.0K0.04%+6,573New
Old Mission Capital LLC6,582$244.0K0.01%+6,582New
Great West Life Assurance Co6,720$248.0K0.00%+115+1.7%Added
Baird Financial Group, Inc.6,897$255.0K0.00%−3,396−33.0%Reduced
Aristides Capital LLC6,891$255.0K0.20%00.0%Unchanged
Virtus ETF Advisers LLC6,925$256.0K0.09%−5,371−43.7%Reduced
Northwestern Mutual Wealth Management Co6,979$258.0K0.00%+4,716+208.4%Added
Stonegate Investment Group, LLC7,055$261.0K0.01%+681+10.7%Added
Tanaka Capital Management Inc7,112$263.0K0.86%−1,435−16.8%Reduced
NewEdge Wealth, LLC7,315$271.0K0.01%+7,315New
American Century Companies Inc7,355$272.0K0.00%+1,761+31.5%Added
Utah Retirement Systems7,400$274.0K0.00%00.0%Unchanged
Commerce Bank7,431$275.0K0.00%−567−7.1%Reduced
Martingale Asset Management L P7,405$275.0K0.01%00.0%Unchanged
Prelude Capital Management, LLC7,428$275.0K0.01%+7,428New
IFP Advisors, Inc5,789$279.0K0.01%−3,373−36.8%Reduced
Toroso Investments, LLC7,607$282.0K0.01%+2,030+36.4%Added
Northeast Financial Consultants Inc7,740$287.0K0.02%00.0%Unchanged
Horizon Kinetics Asset Management LLC8,000$296.0K0.01%00.0%Unchanged
Independent Financial Group, LLC8,125$300.8K0.03%−365−4.3%Reduced
MetLife Investment Management8,287$306.8K0.00%−292−3.4%Reduced
Corton Capital Inc.8,398$311.0K0.29%−411−4.7%Reduced
National Asset Management, Inc.8,402$312.0K0.01%−696−7.7%Reduced
Brandywine Managers, LLC8,460$313.0K0.77%00.0%Unchanged
Nicollet Investment Management, Inc.8,442$313.0K0.17%+173+2.1%Added
Bayesian Capital Management, LP9,063$336.0K0.06%+9,063New
Delphia (USA) Inc.9,311$345.0K0.24%+3,095+49.8%Added
HighTower Advisors, LLC9,488$349.0K0.00%+376+4.1%Added
Verition Fund Management LLC9,531$353.0K0.01%+9,531New
Wrapmanager Inc9,551$354.0K0.11%−163−1.7%Reduced
Brown Advisory Inc9,630$357.0K0.00%+9,630New
Bridgewater Associates, LP9,779$362.0K0.00%+2,578+35.8%Added
Rockefeller Capital Management L.P.9,851$363.0K0.00%−1,405−12.5%Reduced
Maryland State Retirement & Pension System9,956$369.0K0.01%00.0%Unchanged
The PNC Financial Services Group, Inc.9,982$370.0K0.00%+320+3.3%Added
Waddell & Associates, LLC10,042$372.0K0.08%+10,042New
SEI Investments Co10,626$392.0K0.00%−392−3.6%Reduced
Oppenheimer Asset Management Inc.10,903$403.0K0.01%−92−0.8%Reduced
Neuberger Berman Group LLC11,086$410.0K0.00%+11,086New
Cambridge Investment Research Advisors, Inc.11,122$412.0K0.00%+655+6.3%Added
Hanseatic Management Services Inc11,222$415.0K0.94%+11,222New
Plancorp, LLC11,235$416.0K0.03%+23+0.2%Added
Campbell & CO Investment Adviser LLC11,299$418.0K0.11%+11,299New
Ameriprise Financial Inc11,384$421.0K0.00%−1,298−10.2%Reduced
Stephens Inc11,644$431.0K0.01%−908−7.2%Reduced
Man Group plc–$442.0K0.00%–New
Strategic Wealth Advisors Group, LLC12,090$445.0K0.02%−9,394−43.7%Reduced
Arden Trust Co12,192$451.0K0.10%−126−1.0%Reduced
Teza Capital Management LLC12,225$453.0K0.17%+4,707+62.6%Added
Comerica Bank11,684$459.0K0.00%−71−0.6%Reduced
E Fund Management Co., Ltd.12,597$466.0K0.04%+4,263+51.2%Added
Creative Planning12,729$471.0K0.00%−29−0.2%Reduced
Point72 Asset Management, L.P.13,185$488.0K0.00%+13,185New
Lincoln National Corp13,261$491.0K0.01%00.0%Unchanged
ProShare Advisors LLC13,367$495.0K0.00%−4,534−25.3%Reduced
Victory Capital Management Inc13,546$501.0K0.00%+1,721+14.6%Added
North Star Asset Management Inc13,680$506.0K0.03%00.0%Unchanged
Shell Asset Management Co14,216$526.0K0.02%+3,194+29.0%Added
Vontobel Holding Ltd.14,210$534.0K0.01%−505−3.4%Reduced
Oppenheimer & Co Inc14,560$539.0K0.01%−2,000−12.1%Reduced
Blair William & Co14,607$541.0K0.00%−121−0.8%Reduced
Xponance, Inc.15,418$571.0K0.01%+520+3.5%Added
Castle Rock Wealth Management, LLC15,593$573.0K0.29%00.0%Unchanged
Natixis Advisors, L.P.15,830$586.0K0.00%−31−0.2%Reduced
Fox Run Management, L.L.C.15,947$590.0K0.29%+6,893+76.1%Added
Profund Advisors LLC16,203$600.0K0.04%−1,389−7.9%Reduced
Engineers Gate Manager LP16,703$618.0K0.02%+6,835+69.3%Added
Zurcher Kantonalbank (Zurich Cantonalbank)16,734$619.0K0.00%−1,514−8.3%Reduced
Cetera Advisor Networks LLC17,276$640.0K0.01%+1,295+8.1%Added
US Bancorp17,323$641.0K0.00%−4,135−19.3%Reduced
Advisor Group Holdings, Inc.17,424$646.0K0.00%−2,142−10.9%Reduced
AtonRa Partners18,146$672.0K0.62%+18,146New
Dynamic Technology Lab Private Ltd18,310$678.0K0.08%+18,310New
Handelsbanken Fonder AB18,511$685.0K0.00%+4,800+35.0%Added
Public Employees Retirement Association of Colorado19,604$726.0K0.00%00.0%Unchanged
Teacher Retirement System of Texas20,265$750.0K0.01%−5,947−22.7%Reduced
Global Retirement Partners, LLC20,431$756.0K0.06%+90+0.4%Added
Ziegler Capital Management, LLC20,779$769.0K0.03%+20,779New
Skandinaviska Enskilda Banken AB (publ)20,878$773.0K0.01%00.0%Unchanged
Truist Financial Corp22,364$828.0K0.00%−8,906−28.5%Reduced
Storebrand Asset Management AS22,462$831.5K0.00%00.0%Unchanged
Allianz Asset Management GmbH22,497$833.0K0.00%−59,333−72.5%Reduced
Virtu Financial LLC22,794$844.0K0.07%+22,794New
Kestra Advisory Services, LLC22,831$845.0K0.01%−786−3.3%Reduced
Janus Henderson Group PLC23,207$858.0K0.00%−2,516−9.8%Reduced
Vestmark Advisory Solutions, Inc.23,595$874.0K0.05%+4,434+23.1%Added