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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, Q4 2022

Institutional positions in Ionis Pharmaceuticals Inc as of Dec 31, 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
339
−4 vs. Q3 2022
Shares held
130.6M
+4.77M (+3.8%) vs. Q3 2022
Total value
$4.93B
−$630.7M (−11.3%) vs. Q3 2022
New holders
50
115 more added
Sold out
54
107 more reduced

7 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2022: 339 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 heldQ4 2022: $4.93B
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, Q4 2022

Shares, value and share of portfolio for each institution holding Ionis Pharmaceuticals Inc; share changes are against Q3 2022.

Institutions holding IONS in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Dimensional Fund Advisors LP458,444$17.3M0.01%−102,484−18.3%Reduced
Candriam Luxembourg S.C.A.465,700$17.6M0.12%+14,349+3.2%Added
Allspring Global Investments Holdings, LLC488,063$18.4M0.03%+481,018+6,827.8%Added
Pinnacle Associates Ltd494,750$18.7M0.41%−6,140−1.2%Reduced
Royal Bank of Canada506,845$19.1M0.01%+70,021+16.0%Added
Barclays PLC507,311$19.2M0.02%+2,823+0.6%Added
AXA S.A.521,570$19.7M0.07%+339,214+186.0%Added
Bank of New York Mellon Corp573,798$21.7M0.00%−5,615−1.0%Reduced
Wells Fargo & Company608,040$23.0M0.01%−81,832−11.9%Reduced
Two Sigma Advisers, LP634,911$24.0M0.07%−22,600−3.4%Reduced
Bank of America Corp637,313$24.1M0.00%+77,357+13.8%Added
Northern Trust Corp639,689$24.2M0.01%+16,049+2.6%Added
Jacobs Levy Equity Management, Inc689,721$26.1M0.18%+177,746+34.7%Added
TD Asset Management Inc779,495$29.4M0.04%−24,588−3.1%Reduced
Thrivent Financial for Lutherans919,332$34.7M0.09%+10,853+1.2%Added
Goldman Sachs Group Inc922,411$34.8M0.01%−368,154−28.5%Reduced
Morgan Stanley936,709$35.4M0.00%+240,171+34.5%Added
JPMorgan Chase & Co970,310$36.6M0.01%+41,558+4.5%Added
Swedbank AB1,021,429$38.6M0.08%00.0%Unchanged
BVF Inc1,121,809$42.4M1.79%−1,751,144−61.0%Reduced
Renaissance Technologies LLC1,178,814$44.5M0.06%+311,100+35.9%Added
Deep Track Capital, LP1,205,773$45.5M1.99%+1,205,773New
Charles Schwab Investment Management Inc1,256,268$47.4M0.02%+53,922+4.5%Added
Norges Bank1,296,647$49.0M0.01%+105,896+8.9%Added
Macquarie Group Ltd1,491,687$56.3M0.07%+657,646+78.9%Added
First Trust Advisors LP1,780,933$67.3M0.08%−296,327−14.3%Reduced
Camber Capital Management LP1,925,000$72.7M2.54%00.0%Unchanged
OrbiMed Advisors LLC1,993,600$75.3M1.44%+1,224,700+159.3%Added
Geode Capital Management, LLC2,012,723$76.0M0.01%+111,580+5.9%Added
ARK Investment Management LLCSuperinvestorARK Invest2,673,538$101.0M0.88%−1,039,569−28.0%Reduced
Tweedy, Browne Co LLC3,541,136$133.7M7.12%+818,148+30.0%Added
State Street Corp4,218,729$159.3M0.01%+457,774+12.2%Added
Price T Rowe Associates Inc4,292,431$162.1M0.03%−504,701−10.5%Reduced
Clearbridge Investments, LLC5,425,642$204.9M0.20%−348,250−6.0%Reduced
BlackRock Inc.9,079,557$342.9M0.01%+143,495+1.6%Added
Bellevue Group AG9,743,900$368.0M4.88%+280,500+3.0%Added
T. Rowe Price Investment Management, Inc.11,678,259$441.1M0.34%+521,564+4.7%Added
Vanguard Group Inc13,546,694$511.7M0.01%+740,671+5.8%Added
FMR LLC21,307,519$804.8M0.08%+16,360+0.1%Added
Woodline Partners LP0$00.00%−406,483−100.0%Sold out
Jump Financial, LLC0$00.00%−86,602−100.0%Sold out
Alps Advisors Inc0$00.00%−77,480−100.0%Sold out
Liontrust Investment Partners LLP0$00.00%−72,269−100.0%Sold out
UBS Oconnor LLC0$00.00%−54,497−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−53,717−100.0%Sold out
Brookstone Capital Management0$00.00%−38,035−100.0%Sold out
EAM Investors, LLC0$00.00%−28,396−100.0%Sold out
Twin Tree Management, LP0$00.00%−23,517−100.0%Sold out
Capital Fund Management S.A.0$00.00%−23,023−100.0%Sold out
Ziegler Capital Management, LLC0$00.00%−20,659−100.0%Sold out
Acadian Asset Management LLC0$00.00%−20,390−100.0%Sold out
Knowledge Leaders Capital, LLC0$00.00%−19,360−100.0%Sold out
AlphaCrest Capital Management LLC0$00.00%−14,770−100.0%Sold out
SG Americas Securities, LLC0$00.00%−12,698−100.0%Sold out
Shell Asset Management Co0$00.00%−11,265−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−10,766−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−8,670−100.0%Sold out
Brandywine Managers, LLC0$00.00%−8,460−100.0%Sold out
Independent Financial Group, LLC0$00.00%−8,325−100.0%Sold out
Quantbot Technologies LP0$00.00%−8,106−100.0%Sold out
Quantamental Technologies LLC0$00.00%−6,899−100.0%Sold out
Truist Financial Corp0$00.00%−6,420−100.0%Sold out
NewEdge Wealth, LLC0$00.00%−5,854−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−5,341−100.0%Sold out
M&T Bank Corp0$00.00%−5,168−100.0%Sold out
CIBC Asset Management Inc0$00.00%−5,203−100.0%Sold out
Prudential Financial Inc0$00.00%−5,098−100.0%Sold out
Prospera Financial Services Inc0$00.00%−5,095−100.0%Sold out
Buckingham Strategic Wealth, LLC0$00.00%−5,092−100.0%Sold out
Archford Capital Strategies, LLC0$00.00%−5,042−100.0%Sold out
Ieq Capital, LLC0$00.00%−4,983−100.0%Sold out
Mitchell & Pahl Private Wealth, LLC0$00.00%−4,866−100.0%Sold out
Cornercap Investment Counsel Inc0$00.00%−4,703−100.0%Sold out
Toroso Investments, LLC0$00.00%−4,667−100.0%Sold out
Caldwell Trust Co0$00.00%−4,000−100.0%Sold out
Point72 Hong Kong Ltd0$00.00%−3,740−100.0%Sold out
Icon Wealth Advisors, LLC0$00.00%−2,884−100.0%Sold out
DuPont Capital Management Corp0$00.00%−2,769−100.0%Sold out
State of Wyoming0$00.00%−1,338−100.0%Sold out
Almanack Investment Partners, LLC.0$00.00%−1,000−100.0%Sold out
Wolff Wiese Magana LLC0$00.00%−910−100.0%Sold out
Ellis Investment Partners, LLC0$00.00%−500−100.0%Sold out
Assetmark, Inc0$00.00%−250−100.0%Sold out
Trustcore Financial Services, LLC0$00.00%−228−100.0%Sold out
Meeder Asset Management Inc0$00.00%−186−100.0%Sold out
GPS Wealth Strategies Group, LLC0$00.00%−119−100.0%Sold out
TD Waterhouse Canada Inc.0$00.00%−100−100.0%Sold out
Cutler Group LP0$00.00%−100−100.0%Sold out
Cranbrook Wealth Management, LLC0$00.00%−25−100.0%Sold out
Ellevest, Inc.0$00.00%−32−100.0%Sold out
BDO Wealth Advisors, LLC0$00.00%−33−100.0%Sold out
EdgeRock Capital LLC0$00.00%−25−100.0%Sold out
Aspire Private Capital, LLC0$00.00%−8−100.0%Sold out
Dowling & Yahnke LLC––––Not filed
Jefferies Group LLC––––Not filed
Eaton Vance Management––––Not filed
Strategic Wealth Advisors Group, LLC––––Not filed
Wipfli Financial Advisors LLC,––––Not filed
American Portfolios Advisors––––Not filed
Monolith Advisors––––Not filed