Skip to main content

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 7 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
FMR LLC21,291,159$941.7M0.10%+21,599+0.1%Added
Vanguard Group Inc12,806,023$566.4M0.02%+605,747+5.0%Added
T. Rowe Price Investment Management, Inc.11,156,695$493.5M0.39%+11,156,695New
Bellevue Group AG9,463,400$418.6M6.01%−313,128−3.2%Reduced
BlackRock Inc.8,936,062$395.2M0.01%+104,672+1.2%Added
Clearbridge Investments, LLC5,773,892$255.4M0.26%−231,926−3.9%Reduced
Price T Rowe Associates Inc4,797,132$212.2M0.03%−10,258,914−68.1%Reduced
State Street Corp3,760,955$166.3M0.01%−441,919−10.5%Reduced
ARK Investment Management LLCSuperinvestorARK Invest3,713,107$164.2M1.14%−988,190−21.0%Reduced
BVF Inc2,872,953$127.1M5.25%+1,596,379+125.1%Added
Tweedy, Browne Co LLC2,722,988$120.4M5.30%−3,790−0.1%Reduced
First Trust Advisors LP2,077,260$91.9M0.12%+481,205+30.1%Added
Camber Capital Management LP1,925,000$85.1M2.85%−775,000−28.7%Reduced
Geode Capital Management, LLC1,901,143$84.1M0.01%+36,010+1.9%Added
Goldman Sachs Group Inc1,290,565$57.1M0.02%+248,741+23.9%Added
Charles Schwab Investment Management Inc1,202,346$53.2M0.02%+48,321+4.2%Added
Norges Bank1,190,751$52.7M0.01%+72,410+6.5%Added
Swedbank AB1,021,429$45.2M0.11%−852−0.1%Reduced
JPMorgan Chase & Co928,752$41.1M0.01%−110,818−10.7%Reduced
Thrivent Financial for Lutherans908,479$40.2M0.11%−368,304−28.8%Reduced
Renaissance Technologies LLC867,714$38.4M0.05%+252,900+41.1%Added
Macquarie Group Ltd834,041$37.0M0.05%+800,773+2,407.0%Added
TD Asset Management Inc804,083$35.6M0.04%+419+0.1%Added
OrbiMed Advisors LLC768,900$34.0M0.68%+315,500+69.6%Added
Morgan Stanley696,538$30.8M0.00%−41,439−5.6%Reduced
Wells Fargo & Company689,872$30.5M0.01%−34,123−4.7%Reduced
Two Sigma Advisers, LP657,511$29.1M0.08%−48,300−6.8%Reduced
Northern Trust Corp623,640$27.6M0.01%−1,832−0.3%Reduced
Bank of New York Mellon Corp579,413$25.6M0.01%−85,903−12.9%Reduced
Dimensional Fund Advisors LP560,928$24.8M0.01%−24,120−4.1%Reduced
Bank of America Corp559,956$24.8M0.00%−48,596−8.0%Reduced
Jacobs Levy Equity Management, Inc511,975$22.6M0.18%−104,791−17.0%Reduced
Barclays PLC504,488$22.3M0.02%+149,909+42.3%Added
Pinnacle Associates Ltd500,890$22.2M0.51%−14,969−2.9%Reduced
Assenagon Asset Management S.A.452,760$20.0M0.09%+112,044+32.9%Added
Candriam Luxembourg S.C.A.451,351$20.0M0.14%−119,341−20.9%Reduced
Sumitomo Mitsui Trust Holdings, Inc.437,176$19.3M0.02%−30,940−6.6%Reduced
Royal Bank of Canada436,824$19.3M0.01%+8,401+2.0%Added
Citadel Advisors LLC418,232$18.5M0.02%−61,911−12.9%Reduced
Redmile Group, LLC407,659$18.0M0.70%+407,659New
Woodline Partners LP406,483$18.0M0.26%+276,575+212.9%Added
Nomura Holdings Inc387,908$17.1M0.17%+11,931+3.2%Added
Nikko Asset Management Americas, Inc.437,176$16.0M0.20%−30,940−6.6%Reduced
Bank of Montreal323,529$15.1M0.01%+91,537+39.5%Added
Nuveen Asset Management, LLC339,284$15.0M0.01%−9,402−2.7%Reduced
Baillie Gifford & Co324,842$14.4M0.01%+13,827+4.4%Added
California Public Employees Retirement System323,586$14.3M0.01%+41,204+14.6%Added
Swiss National Bank302,600$13.4M0.01%+3,300+1.1%Added
Dowling & Yahnke LLC302,571$13.4M0.62%00.0%Unchanged
Stifel Financial Corp300,013$13.3M0.02%−6,307−2.1%Reduced
Invesco Ltd.295,199$13.1M0.00%−30,786−9.4%Reduced
Two Sigma Investments, LP292,994$13.0M0.04%−267,037−47.7%Reduced
UBS Asset Management Americas Inc279,624$12.4M0.01%+73,835+35.9%Added
Pictet Asset Management SA276,977$12.3M0.02%+38,638+16.2%Added
Sicart Associates LLC253,976$11.2M3.98%−34,775−12.0%Reduced
Parkman Healthcare Partners LLC241,945$10.7M3.04%+67,645+38.8%Added
Raymond James & Associates238,168$10.5M0.01%−8,281−3.4%Reduced
Connor, Clark & Lunn Investment Management Ltd.229,061$10.1M0.07%+97,078+73.6%Added
D. E. Shaw & Co., Inc.209,445$9.26M0.02%+82,824+65.4%Added
Schonfeld Strategic Advisors LLC207,672$9.19M0.08%+77,649+59.7%Added
Eversept Partners, LP201,833$8.93M1.06%+115,522+133.8%Added
Tang Capital Management LLC200,000$8.85M1.08%00.0%Unchanged
Hudson Bay Capital Management LP199,800$8.84M0.09%+14,800+8.0%Added
AXA S.A.182,356$8.07M0.03%+23,821+15.0%Added
Man Group plc177,597$7.86M0.04%––
Citigroup Inc176,992$7.83M0.01%+27,861+18.7%Added
California State Teachers Retirement System165,925$7.34M0.01%−3,489−2.1%Reduced
Sector Gamma AS164,223$7.26M1.87%−1,216−0.7%Reduced
State Board of Administration of Florida Retirement System163,255$7.22M0.02%−870−0.5%Reduced
Tocqueville Asset Management L.P.162,394$7.18M0.15%−211−0.1%Reduced
Altrinsic Global Advisors LLC161,246$7.13M0.33%−25,208−13.5%Reduced
Rhumbline Advisers155,714$6.89M0.01%+1,212+0.8%Added
Credit Suisse AG154,698$6.84M0.01%+4,977+3.3%Added
Susquehanna Fundamental Investments, LLC153,636$6.79M0.12%+153,636New
Rafferty Asset Management, LLC151,974$6.72M0.07%+32,691+27.4%Added
BLB&B Advisors, LLC149,070$6.59M0.55%−180−0.1%Reduced
Privium Fund Management B.V.148,807$6.59M2.49%−31,300−17.4%Reduced
Kennedy Capital Management, Inc.144,795$6.40M0.19%+25,113+21.0%Added
New York State Common Retirement Fund142,900$6.32M0.01%−3,925−2.7%Reduced
Fred Alger Management, LLC142,522$6.30M0.03%−4,134−2.8%Reduced
Natixis134,081$5.94M0.03%+134,081New
BNP Paribas Arbitrage, SA132,740$5.87M0.01%+12,770+10.6%Added
Sonora Investment Management Group, LLC157,023$5.81M0.75%+700+0.4%Added
State of Wisconsin Investment Board129,854$5.74M0.02%−7,379−5.4%Reduced
Legal & General Group Plc128,453$5.68M0.00%−35,501−21.7%Reduced
DekaBank Deutsche Girozentrale124,776$5.50M0.02%00.0%Unchanged
Peregrine Capital Management LLC123,396$5.46M0.18%−6,828−5.2%Reduced
Eventide Asset Management, LLC110,000$4.87M0.10%00.0%Unchanged
Private Advisor Group, LLC109,872$4.86M0.06%−27,910−20.3%Reduced
Jefferies Group LLC105,566$4.67M0.14%+105,566New
Healthcare of Ontario Pension Plan Trust Fund92,700$4.10M0.02%+92,700New
Russell Investments Group, Ltd.92,320$4.08M0.01%−6,914−7.0%Reduced
Squarepoint Ops LLC92,054$4.07M0.04%−37,886−29.2%Reduced
Manufacturers Life Insurance Company, The89,096$3.94M0.00%−4,118−4.4%Reduced
Bard Financial Services, Inc.87,895$3.89M0.36%−5,550−5.9%Reduced
Tekla Capital Management LLC87,840$3.88M0.16%−87,840−50.0%Reduced
Jump Financial, LLC86,602$3.83M0.15%−28,255−24.6%Reduced
Walleye Capital LLC85,963$3.80M0.09%+79,594+1,249.7%Added
Davenport & Co LLC84,863$3.75M0.03%+1,545+1.9%Added
State of New Jersey Common Pension Fund D80,433$3.56M0.01%00.0%Unchanged