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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, Q3 2022

Institutional positions in Ionis Pharmaceuticals Inc as of Sep 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
350
−1 vs. Q2 2022
Shares held
126.4M
+1.80M (+1.4%) vs. Q2 2022
Total value
$5.59B
+$976.9M (+21.2%) vs. Q2 2022
New holders
50
97 more added
Sold out
51
130 more reduced

Compare with Q2 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 holdersQ3 2022: 350 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 heldQ3 2022: $5.59B
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, Q3 2022

Shares, value and share of portfolio for each institution holding Ionis Pharmaceuticals Inc; share changes are against Q2 2022.

Institutions holding IONS in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Stifel Financial Corp300,013$13.3M0.02%−6,307−2.1%Reduced
Dowling & Yahnke LLC302,571$13.4M0.62%00.0%Unchanged
Swiss National Bank302,600$13.4M0.01%+3,300+1.1%Added
California Public Employees Retirement System323,586$14.3M0.01%+41,204+14.6%Added
Baillie Gifford & Co324,842$14.4M0.01%+13,827+4.4%Added
Nuveen Asset Management, LLC339,284$15.0M0.01%−9,402−2.7%Reduced
Bank of Montreal323,529$15.1M0.01%+91,537+39.5%Added
Nikko Asset Management Americas, Inc.437,176$16.0M0.20%−30,940−6.6%Reduced
Nomura Holdings Inc387,908$17.1M0.17%+11,931+3.2%Added
Woodline Partners LP406,483$18.0M0.26%+276,575+212.9%Added
Redmile Group, LLC407,659$18.0M0.70%+407,659New
Citadel Advisors LLC418,232$18.5M0.02%−61,911−12.9%Reduced
Royal Bank of Canada436,824$19.3M0.01%+8,401+2.0%Added
Sumitomo Mitsui Trust Holdings, Inc.437,176$19.3M0.02%−30,940−6.6%Reduced
Candriam Luxembourg S.C.A.451,351$20.0M0.14%−119,341−20.9%Reduced
Assenagon Asset Management S.A.452,760$20.0M0.09%+112,044+32.9%Added
Pinnacle Associates Ltd500,890$22.2M0.51%−14,969−2.9%Reduced
Barclays PLC504,488$22.3M0.02%+149,909+42.3%Added
Jacobs Levy Equity Management, Inc511,975$22.6M0.18%−104,791−17.0%Reduced
Bank of America Corp559,956$24.8M0.00%−48,596−8.0%Reduced
Dimensional Fund Advisors LP560,928$24.8M0.01%−24,120−4.1%Reduced
Bank of New York Mellon Corp579,413$25.6M0.01%−85,903−12.9%Reduced
Northern Trust Corp623,640$27.6M0.01%−1,832−0.3%Reduced
Two Sigma Advisers, LP657,511$29.1M0.08%−48,300−6.8%Reduced
Wells Fargo & Company689,872$30.5M0.01%−34,123−4.7%Reduced
Morgan Stanley696,538$30.8M0.00%−41,439−5.6%Reduced
OrbiMed Advisors LLC768,900$34.0M0.68%+315,500+69.6%Added
TD Asset Management Inc804,083$35.6M0.04%+419+0.1%Added
Macquarie Group Ltd834,041$37.0M0.05%+800,773+2,407.0%Added
Renaissance Technologies LLC867,714$38.4M0.05%+252,900+41.1%Added
Thrivent Financial for Lutherans908,479$40.2M0.11%−368,304−28.8%Reduced
JPMorgan Chase & Co928,752$41.1M0.01%−110,818−10.7%Reduced
Swedbank AB1,021,429$45.2M0.11%−852−0.1%Reduced
Norges Bank1,190,751$52.7M0.01%+72,410+6.5%Added
Charles Schwab Investment Management Inc1,202,346$53.2M0.02%+48,321+4.2%Added
Goldman Sachs Group Inc1,290,565$57.1M0.02%+248,741+23.9%Added
Geode Capital Management, LLC1,901,143$84.1M0.01%+36,010+1.9%Added
Camber Capital Management LP1,925,000$85.1M2.85%−775,000−28.7%Reduced
First Trust Advisors LP2,077,260$91.9M0.12%+481,205+30.1%Added
Tweedy, Browne Co LLC2,722,988$120.4M5.30%−3,790−0.1%Reduced
BVF Inc2,872,953$127.1M5.25%+1,596,379+125.1%Added
ARK Investment Management LLCSuperinvestorARK Invest3,713,107$164.2M1.14%−988,190−21.0%Reduced
State Street Corp3,760,955$166.3M0.01%−441,919−10.5%Reduced
Price T Rowe Associates Inc4,797,132$212.2M0.03%−10,258,914−68.1%Reduced
Clearbridge Investments, LLC5,773,892$255.4M0.26%−231,926−3.9%Reduced
BlackRock Inc.8,936,062$395.2M0.01%+104,672+1.2%Added
Bellevue Group AG9,463,400$418.6M6.01%−313,128−3.2%Reduced
T. Rowe Price Investment Management, Inc.11,156,695$493.5M0.39%+11,156,695New
Vanguard Group Inc12,806,023$566.4M0.02%+605,747+5.0%Added
FMR LLC21,291,159$941.7M0.10%+21,599+0.1%Added
Caisse de Depot Et Placement du Quebec0$00.00%−198,324−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−155,533−100.0%Sold out
HRT Financial LP0$00.00%−122,897−100.0%Sold out
Ergoteles LLC0$00.00%−69,124−100.0%Sold out
PDT Partners, LLC0$00.00%−59,865−100.0%Sold out
Employees Retirement System of Texas0$00.00%−54,409−100.0%Sold out
HSBC Holdings PLC0$00.00%−47,206−100.0%Sold out
Winton Group Ltd0$00.00%−42,634−100.0%Sold out
Arrowstreet Capital, Limited Partnership0$00.00%−41,104−100.0%Sold out
Simplex Trading, LLC0$00.00%−34,626−100.0%Sold out
MML Investors Services, LLC0$00.00%−29,479−100.0%Sold out
Cordatus Wealth Management LLC0$00.00%−26,083−100.0%Sold out
Virtu Financial LLC0$00.00%−22,794−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−18,310−100.0%Sold out
Cetera Advisor Networks LLC0$00.00%−17,276−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−15,947−100.0%Sold out
Oppenheimer & Co Inc0$00.00%−14,560−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−13,185−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−11,299−100.0%Sold out
Maryland State Retirement & Pension System0$00.00%−9,956−100.0%Sold out
Bridgewater Associates, LP0$00.00%−9,779−100.0%Sold out
Verition Fund Management LLC0$00.00%−9,531−100.0%Sold out
Bayesian Capital Management, LP0$00.00%−9,063−100.0%Sold out
Aristides Capital LLC0$00.00%−6,891−100.0%Sold out
Old Mission Capital LLC0$00.00%−6,582−100.0%Sold out
First Foundation Advisors0$00.00%−6,412−100.0%Sold out
Parametrica Management Ltd0$00.00%−6,165−100.0%Sold out
Berkshire Asset Management LLC0$00.00%−5,596−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−5,475−100.0%Sold out
Mercer Global Advisors Inc0$00.00%−5,396−100.0%Sold out
Group One Trading, L.P.0$00.00%−4,654−100.0%Sold out
NuWave Investment Management, LLC0$00.00%−3,434−100.0%Sold out
Canada Pension Plan Investment Board0$00.00%−3,124−100.0%Sold out
Captrust Financial Advisors0$00.00%−1,429−100.0%Sold out
International Biotechnology Trust PLC0$00.00%−1,703−100.0%Sold out
Heritage Financial Services, LLC0$00.00%−900−100.0%Sold out
Elequin Capital LP0$00.00%−532−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−359−100.0%Sold out
Gables Capital Management Inc.0$00.00%−275−100.0%Sold out
WFA of San Diego, LLC0$00.00%−200−100.0%Sold out
Benjamin F. Edwards & Company, Inc.0$00.00%−119−100.0%Sold out
Gradient Investments LLC0$00.00%−91−100.0%Sold out
Global Wealth Management Investment Advisory, Inc.0$00.00%−80−100.0%Sold out
Concord Wealth Partners0$00.00%−82−100.0%Sold out
Venture Visionary Partners LLC0$00.00%−63−100.0%Sold out
Rockbridge Investment Management, LCC0$00.00%−58−100.0%Sold out
Sargent Bickham Lagudis LLC0$00.00%−43−100.0%Sold out
CoreCap Advisors, LLC0$00.00%−64−100.0%Sold out
First Bank & Trust0$00.00%−15−100.0%Sold out
Patriot Financial Group Insurance Agency, LLC0$00.00%−18−100.0%Sold out