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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 2024

Institutional positions in Ionis Pharmaceuticals Inc as of Sep 30, 2024. 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
354
+1 vs. Q2 2024
Shares held
157.5M
+24.6M (+18.5%) vs. Q2 2024
Total value
$6.31B
−$23.0M (−0.4%) vs. Q2 2024
New holders
53
131 more added
Sold out
52
107 more reduced

4 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 2024: 354 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 2024: $6.31B
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 2024

Shares, value and share of portfolio for each institution holding Ionis Pharmaceuticals Inc; share changes are against Q2 2024.

Institutions holding IONS in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Schonfeld Strategic Advisors LLC362,888$14.5M0.12%−360,730−49.9%Reduced
Voloridge Investment Management, LLC380,641$15.2M0.06%+380,641New
Ameriprise Financial Inc397,898$15.9M0.00%+389,106+4,425.7%Added
Ghisallo Capital Management LLC400,000$16.0M0.79%+400,000New
Citadel Advisors LLC401,151$16.1M0.02%−225,882−36.0%Reduced
First Trust Advisors LP402,300$16.1M0.02%+386,106+2,384.3%Added
Tocqueville Asset Management L.P.406,870$16.3M0.26%+181,800+80.8%Added
Millennium Management LLC430,723$17.3M0.01%+302,508+235.9%Added
Nomura Holdings Inc453,069$18.1M0.14%−48,119−9.6%Reduced
Eversept Partners, LP471,355$18.9M1.45%+14,474+3.2%Added
Adage Capital Partners GP, L.L.C.500,000$20.0M0.04%−300,000−37.5%Reduced
EcoR1 Capital, LLC500,000$20.0M0.69%+500,000New
AXA S.A.561,243$22.5M0.07%+96,280+20.7%Added
Bank of America Corp568,660$22.8M0.00%+54,117+10.5%Added
JPMorgan Chase & Co568,906$22.8M0.00%−25,185−4.2%Reduced
Pinnacle Associates Ltd458,979$23.2M0.40%+5,600+1.2%Added
Man Group plc596,263$23.9M0.07%−37,146−5.9%Reduced
J. Goldman & Co LP609,416$24.4M1.06%+591,914+3,382.0%Added
Bank of New York Mellon Corp610,893$24.5M0.00%+13,414+2.2%Added
Barclays PLC637,032$25.5M0.01%+21,358+3.5%Added
Jacobs Levy Equity Management, Inc650,779$26.1M0.10%+77,909+13.6%Added
Royal Bank of Canada670,149$26.8M0.01%−8,211−1.2%Reduced
Northern Trust Corp742,904$29.8M0.00%+24,929+3.5%Added
Logos Global Management LP750,000$30.0M3.37%+450,000+150.0%Added
Hudson Bay Capital Management LP766,900$30.7M0.21%+400,900+109.5%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.779,721$31.2M0.08%−1,032−0.1%Reduced
Invesco Ltd.810,301$32.5M0.01%−158,616−16.4%Reduced
Two Sigma Investments, LP919,077$36.8M0.08%−109,065−10.6%Reduced
Candriam Luxembourg S.C.A.948,266$38.0M0.22%00.0%Unchanged
TD Asset Management Inc1,092,990$44.6M0.04%+140,228+14.7%Added
Morgan Stanley1,310,451$52.5M0.00%+297,646+29.4%Added
Pictet Asset Management Holding SA1,303,501$52.7M0.06%−1,106,453−45.9%Reduced
Two Sigma Advisers, LP1,332,411$53.4M0.13%+45,300+3.5%Added
ARK Investment Management LLCSuperinvestorARK Invest1,384,269$55.5M0.51%+23,244+1.7%Added
Charles Schwab Investment Management Inc1,443,020$57.8M0.01%+114,914+8.7%Added
BVF Inc1,451,879$58.2M1.70%−1,734,497−54.4%Reduced
Clearbridge Investments, LLC1,702,393$68.2M0.05%−457,877−21.2%Reduced
Macquarie Group Ltd1,869,806$74.9M0.08%−3,862−0.2%Reduced
Marshall Wace, LLP1,920,464$76.9M0.10%+1,747,265+1,008.8%Added
Norges Bank2,027,161$81.2M0.01%+1,007,820+98.9%Added
Deep Track Capital, LP2,200,000$88.1M2.81%+200,000+10.0%Added
Artisan Partners Limited Partnership2,240,455$89.8M0.13%+569,419+34.1%Added
OrbiMed Advisors LLC2,324,447$93.1M1.70%−47,886−2.0%Reduced
Geode Capital Management, LLC2,668,358$106.9M0.01%+183,814+7.4%Added
Tweedy, Browne Co LLC3,454,676$138.4M6.60%00.0%Unchanged
Price T Rowe Associates Inc4,210,172$168.7M0.02%+275,861+7.0%Added
State Street Corp4,850,137$194.3M0.01%+659,632+15.7%Added
Capital World Investors7,828,372$313.6M0.05%+5,576,283+247.6%Added
Bellevue Group AG7,874,400$315.4M5.11%−386,034−4.7%Reduced
Wellington Management Group LLP8,735,787$350.0M0.06%+2,166,979+33.0%Added
BlackRock, Inc.10,813,023$433.2M0.01%+10,813,023New
T. Rowe Price Investment Management, Inc.14,168,116$567.6M0.34%+1,528,432+12.1%Added
Vanguard Group Inc15,055,758$603.1M0.01%+1,210,046+8.7%Added
FMR LLC22,479,529$900.5M0.05%+584,723+2.7%Added
Proequities, Inc.0$00.00%−26−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−1,077,321−100.0%Sold out
Integral Health Asset Management, LLC0$00.00%−250,000−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−209,194−100.0%Sold out
Zimmer Partners, LP0$00.00%−200,000−100.0%Sold out
Parkman Healthcare Partners LLC0$00.00%−161,705−100.0%Sold out
HRT Financial LP0$00.00%−159,685−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−137,210−100.0%Sold out
Verition Fund Management LLC0$00.00%−120,814−100.0%Sold out
Avidity Partners Management LP0$00.00%−93,000−100.0%Sold out
Bank of Nova Scotia0$00.00%−51,879−100.0%Sold out
DRW Securities, LLC0$00.00%−50,956−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−35,311−100.0%Sold out
Inceptionr LLC0$00.00%−17,289−100.0%Sold out
Simplicity Wealth,LLC0$00.00%−16,340−100.0%Sold out
Parallax Volatility Advisers, L.P.0$00.00%−12,310−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−10,845−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−8,231−100.0%Sold out
Pearl River Capital, LLC0$00.00%−6,187−100.0%Sold out
Jump Financial, LLC0$00.00%−6,184−100.0%Sold out
Oppenheimer Asset Management Inc.0$00.00%−5,777−100.0%Sold out
Readystate Asset Management LP0$00.00%−5,600−100.0%Sold out
Perkins Capital Management Inc0$00.00%−5,550−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−5,421−100.0%Sold out
HSBC Holdings PLC0$00.00%−5,326−100.0%Sold out
Stephens Inc0$00.00%−5,138−100.0%Sold out
Beaird Harris Wealth Management, LLC0$00.00%−5,000−100.0%Sold out
Kestra Advisory Services, LLC0$00.00%−5,491−100.0%Sold out
Farallon Capital Management, L.L.C.0$00.00%−4,800−100.0%Sold out
Point72 (DIFC) Ltd0$00.00%−4,694−100.0%Sold out
Mitchell & Pahl Private Wealth, LLC0$00.00%−4,540−100.0%Sold out
Wealth Enhancement Advisory Services, LLC0$00.00%−4,508−100.0%Sold out
Prospera Financial Services Inc0$00.00%−4,451−100.0%Sold out
Checchi Capital Advisers, LLC0$00.00%−4,234−100.0%Sold out
Redwood Wealth Management Group, LLC0$00.00%−2,408−100.0%Sold out
Pacer Advisors, Inc.0$00.00%−960−100.0%Sold out
nVerses Capital, LLC0$00.00%−600−100.0%Sold out
Pingora Partners LLC0$00.00%−500−100.0%Sold out
Banque Cantonale Vaudoise0$00.00%−400−100.0%Sold out
ORG Partners LLC0$00.00%−400−100.0%Sold out
Natixis0$00.00%−163−100.0%Sold out
Ashton Thomas Private Wealth, LLC0$00.00%−150−100.0%Sold out
Unique Wealth Strategies, LLC0$00.00%−140−100.0%Sold out
Family Firm, Inc.0$00.00%−91−100.0%Sold out
Orion Capital Management LLC0$00.00%−80−100.0%Sold out
National Bank of Canada0$00.00%−80−100.0%Sold out