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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 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, 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
FMR LLC21,269,560$787.4M0.08%−51,326−0.2%Reduced
Price T Rowe Associates Inc15,056,046$557.4M0.07%+705,586+4.9%Added
Vanguard Group Inc12,200,276$451.7M0.01%+101,242+0.8%Added
Bellevue Group AG9,776,528$361.9M5.12%−141,545−1.4%Reduced
BlackRock Inc.8,831,390$326.9M0.01%+387,547+4.6%Added
Clearbridge Investments, LLC6,005,818$222.3M0.21%−470,215−7.3%Reduced
ARK Investment Management LLCSuperinvestorARK Invest4,701,297$171.7M1.02%−1,470,011−23.8%Reduced
State Street Corp4,202,874$155.6M0.01%+172,228+4.3%Added
Tweedy, Browne Co LLC2,726,778$100.9M4.13%−198,324−6.8%Reduced
Camber Capital Management LP2,700,000$100.0M4.34%−300,000−10.0%Reduced
Geode Capital Management, LLC1,865,133$69.0M0.01%−32,359−1.7%Reduced
First Trust Advisors LP1,596,055$59.1M0.07%−20,235−1.3%Reduced
Thrivent Financial for Lutherans1,276,783$47.3M0.13%−284,730−18.2%Reduced
BVF Inc1,276,574$47.3M2.28%+1,276,574New
Charles Schwab Investment Management Inc1,154,025$42.7M0.01%+16,198+1.4%Added
Norges Bank1,118,341$41.4M0.01%+332,780+42.4%Added
Goldman Sachs Group Inc1,041,824$38.6M0.01%+87,498+9.2%Added
JPMorgan Chase & Co1,039,570$38.5M0.01%−141,987−12.0%Reduced
Swedbank AB1,022,281$37.8M0.09%−95,058−8.5%Reduced
TD Asset Management Inc803,664$29.8M0.03%−16,500−2.0%Reduced
Morgan Stanley737,977$27.3M0.00%+218,500+42.1%Added
Wells Fargo & Company723,995$26.8M0.01%−118,289−14.0%Reduced
Two Sigma Advisers, LP705,811$26.1M0.07%+94,200+15.4%Added
Bank of New York Mellon Corp665,316$24.6M0.01%+116,069+21.1%Added
Northern Trust Corp625,472$23.2M0.00%−23,062−3.6%Reduced
Jacobs Levy Equity Management, Inc616,766$22.8M0.18%−1,001,501−61.9%Reduced
Renaissance Technologies LLC614,814$22.8M0.03%+479,900+355.7%Added
Bank of America Corp608,552$22.5M0.00%−153,606−20.2%Reduced
Dimensional Fund Advisors LP585,048$21.7M0.01%+231,567+65.5%Added
Candriam Luxembourg S.C.A.570,692$21.1M0.17%+71,145+14.2%Added
Two Sigma Investments, LP560,031$20.7M0.07%−220,225−28.2%Reduced
Pinnacle Associates Ltd515,859$19.1M0.42%−6,109−1.2%Reduced
Citadel Advisors LLC480,143$17.8M0.02%−764,381−61.4%Reduced
Sumitomo Mitsui Trust Holdings, Inc.468,116$17.3M0.01%−131,500−21.9%Reduced
OrbiMed Advisors LLC453,400$16.8M0.33%+453,400New
Royal Bank of Canada428,423$15.9M0.00%−16,079−3.6%Reduced
Nikko Asset Management Americas, Inc.468,116$15.4M0.19%−131,500−21.9%Reduced
Nomura Holdings Inc375,977$14.3M0.13%−18,177−4.6%Reduced
Barclays PLC354,579$13.1M0.01%+38,229+12.1%Added
Nuveen Asset Management, LLC348,686$12.9M0.01%+32,867+10.4%Added
Assenagon Asset Management S.A.340,716$12.6M0.05%−17,180−4.8%Reduced
Invesco Ltd.325,985$12.1M0.00%+185,993+132.9%Added
Millennium Management LLC320,615$11.9M0.02%+129,424+67.7%Added
Baillie Gifford & Co311,015$11.5M0.01%−37,848−10.8%Reduced
Stifel Financial Corp306,320$11.3M0.02%−34,246−10.1%Reduced
Dowling & Yahnke LLC302,571$11.2M0.53%00.0%Unchanged
Swiss National Bank299,300$11.1M0.01%−1,200−0.4%Reduced
Sicart Associates LLC288,751$10.7M3.33%−16,031−5.3%Reduced
California Public Employees Retirement System282,382$10.5M0.01%−12,433−4.2%Reduced
Bank of Montreal231,992$9.22M0.01%−36,505−13.6%Reduced
Raymond James & Associates246,449$9.12M0.01%−10,277−4.0%Reduced
Pictet Asset Management SA238,339$8.82M0.01%+32,198+15.6%Added
UBS Asset Management Americas Inc205,789$7.62M0.00%−1,117−0.5%Reduced
Tang Capital Management LLC200,000$7.40M1.12%00.0%Unchanged
Caisse de Depot Et Placement du Quebec198,324$7.34M0.02%+198,324New
Liontrust Investment Partners LLP194,492$7.20M0.10%+194,492New
Altrinsic Global Advisors LLC186,454$6.90M0.28%−21,704−10.4%Reduced
Hudson Bay Capital Management LP185,000$6.85M0.07%−25,000−11.9%Reduced
Privium Fund Management B.V.180,107$6.67M2.26%00.0%Unchanged
Tekla Capital Management LLC175,680$6.50M0.26%00.0%Unchanged
Parkman Healthcare Partners LLC174,300$6.45M2.38%+174,300New
UBS Group AG170,167$6.30M0.00%−31,034−15.4%Reduced
California State Teachers Retirement System169,414$6.27M0.01%+1,052+0.6%Added
Sector Gamma AS165,439$6.13M1.37%−23,000−12.2%Reduced
State Board of Administration of Florida Retirement System164,125$6.08M0.01%−6,603−3.9%Reduced
Legal & General Group Plc163,954$6.07M0.00%+1,636+1.0%Added
Tocqueville Asset Management L.P.162,605$6.02M0.11%−4,900−2.9%Reduced
AXA S.A.158,535$5.87M0.02%+72,235+83.7%Added
Sonora Investment Management Group, LLC156,323$5.79M0.55%−938−0.6%Reduced
Balyasny Asset Management LLC155,533$5.76M0.02%+155,533New
Rhumbline Advisers154,502$5.72M0.01%+20,942+15.7%Added
Credit Suisse AG149,721$5.54M0.01%−30,905−17.1%Reduced
Cubist Systematic Strategies, LLC149,388$5.53M0.04%+53,858+56.4%Added
BLB&B Advisors, LLC149,250$5.53M0.44%−495−0.3%Reduced
Citigroup Inc149,131$5.52M0.01%+67,795+83.4%Added
New York State Common Retirement Fund146,825$5.43M0.01%+250.0%Added
Fred Alger Management, LLC146,656$5.43M0.03%+146,656New
Private Advisor Group, LLC137,782$5.10M0.05%−19,186−12.2%Reduced
State of Wisconsin Investment Board137,233$5.08M0.01%+22,782+19.9%Added
Connor, Clark & Lunn Investment Management Ltd.131,983$4.89M0.03%−25,210−16.0%Reduced
Peregrine Capital Management LLC130,224$4.82M0.15%−96−0.1%Reduced
Schonfeld Strategic Advisors LLC130,023$4.81M0.05%+74,480+134.1%Added
Squarepoint Ops LLC129,940$4.81M0.04%+111,046+587.7%Added
Woodline Partners LP129,908$4.81M0.08%−62,743−32.6%Reduced
D. E. Shaw & Co., Inc.126,621$4.69M0.01%+126,621New
DekaBank Deutsche Girozentrale124,776$4.65M0.01%00.0%Unchanged
HRT Financial LP122,897$4.55M0.05%+13,521+12.4%Added
BNP Paribas Arbitrage, SA119,970$4.44M0.01%+29,034+31.9%Added
Kennedy Capital Management, Inc.119,682$4.43M0.12%+109,834+1,115.3%Added
Rafferty Asset Management, LLC119,283$4.42M0.04%−59,511−33.3%Reduced
Jump Financial, LLC114,857$4.25M0.18%+5,030+4.6%Added
Principal Financial Group Inc112,168$4.15M0.00%+81,957+271.3%Added
Eventide Asset Management, LLC110,000$4.07M0.09%+110,000New
Russell Investments Group, Ltd.99,234$3.67M0.01%−184,896−65.1%Reduced
Gateway Investment Advisers LLC99,129$3.67M0.04%00.0%Unchanged
Manufacturers Life Insurance Company, The93,214$3.50M0.00%+17,916+23.8%Added
Bard Financial Services, Inc.93,445$3.46M0.32%−5,575−5.6%Reduced
Jane Street Group, LLC90,889$3.36M0.01%+63,098+227.0%Added
Eversept Partners, LP86,311$3.20M0.31%−72,495−45.7%Reduced
Alps Advisors Inc84,115$3.11M0.03%−61,500−42.2%Reduced