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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
Kestra Advisory Services, LLC22,925$1.01M0.01%+94+0.4%Added
Capital Fund Management S.A.23,023$1.02M0.03%−16,087−41.1%Reduced
Janus Henderson Group PLC23,140$1.02M0.00%−67−0.3%Reduced
Gotham Asset Management, LLC23,240$1.03M0.03%−38,244−62.2%Reduced
Twin Tree Management, LP23,517$1.04M0.03%+23,517New
Vestmark Advisory Solutions, Inc.25,199$1.11M0.06%+1,604+6.8%Added
Aquatic Capital Management LLC25,500$1.13M0.11%+25,500New
Federated Hermes, Inc.26,127$1.16M0.00%−1,110−4.1%Reduced
Virginia Retirement Systems Et Al26,600$1.18M0.01%+26,600New
EAM Investors, LLC28,396$1.26M0.27%+28,396New
Allianz Asset Management GmbH28,880$1.28M0.00%+6,383+28.4%Added
Grandfield & Dodd, LLC29,071$1.29M0.11%+795+2.8%Added
Toronto Dominion Bank31,306$1.38M0.00%+31,306New
Amalgamated Bank31,592$1.40M0.01%−1,731−5.2%Reduced
Ensign Peak Advisors, Inc32,315$1.43M0.00%+7,445+29.9%Added
Janney Montgomery Scott LLC32,415$1.43M0.01%+1,757+5.7%Added
Raymond James Financial Services Advisors, Inc.32,564$1.44M0.00%−21,666−40.0%Reduced
Arizona State Retirement System34,680$1.53M0.02%+239+0.7%Added
Koss-Olinger Consulting, LLC35,939$1.59M0.27%−2,983−7.7%Reduced
Ameriprise Financial Inc38,703$1.71M0.00%+27,319+240.0%Added
Highland Capital Management, LLC38,873$1.72M0.13%−286−0.7%Reduced
Envestnet Asset Management Inc39,264$1.74M0.00%−1,101−2.7%Reduced
Brookstone Capital Management38,035$1.75M0.04%+12,694+50.1%Added
Capital Counsel LLC40,230$1.78M0.12%−780−1.9%Reduced
Susquehanna International Group, LLP40,870$1.81M0.00%+3,317+8.8%Added
Teacher Retirement System of Texas41,844$1.85M0.01%+21,579+106.5%Added
NJ State Employees Deferred Compensation Plan42,000$1.86M0.32%00.0%Unchanged
Rhenman & Partners Asset Management AB50,000$2.21M0.23%00.0%Unchanged
Gateway Investment Advisers LLC50,199$2.22M0.03%−48,930−49.4%Reduced
Erste Asset Management GmbH51,300$2.27M0.05%00.0%Unchanged
National Bank of Canada51,720$2.29M0.01%+51,720New
Graham Capital Management, L.P.53,717$2.38M0.10%−7,296−12.0%Reduced
UBS Oconnor LLC54,497$2.41M0.03%−7,000−11.4%Reduced
Guggenheim Capital LLC54,969$2.43M0.02%−8,777−13.8%Reduced
Trexquant Investment LP55,564$2.46M0.09%+27,141+95.5%Added
Intech Investment Management LLC57,140$2.53M0.02%+57,140New
Alliancebernstein L.P.58,102$2.57M0.00%−2,758−4.5%Reduced
Principal Financial Group Inc60,269$2.67M0.00%−51,899−46.3%Reduced
Treasurer of the State of North Carolina60,522$2.68M0.02%+780+1.3%Added
Algert Global LLC60,937$2.69M0.16%+36,037+144.7%Added
UBS Group AG61,310$2.71M0.00%−108,857−64.0%Reduced
Deutsche Bank AG65,426$2.89M0.00%+32,961+101.5%Added
Voya Investment Management LLC70,275$3.11M0.00%+13,720+24.3%Added
Cubist Systematic Strategies, LLC70,408$3.11M0.02%−78,980−52.9%Reduced
Eaton Vance Management70,682$3.13M0.00%+1,084+1.6%Added
Liontrust Investment Partners LLP72,269$3.20M0.05%−122,223−62.8%Reduced
LPL Financial LLC74,740$3.31M0.00%−7,347−9.0%Reduced
PFS Investments Inc.75,202$3.33M0.07%+1,077+1.5%Added
Public Employees Retirement System of Ohio76,123$3.37M0.02%+780+1.0%Added
Alps Advisors Inc77,480$3.43M0.03%−6,635−7.9%Reduced
State of New Jersey Common Pension Fund D80,433$3.56M0.01%00.0%Unchanged
Davenport & Co LLC84,863$3.75M0.03%+1,545+1.9%Added
Walleye Capital LLC85,963$3.80M0.09%+79,594+1,249.7%Added
Jump Financial, LLC86,602$3.83M0.15%−28,255−24.6%Reduced
Tekla Capital Management LLC87,840$3.88M0.16%−87,840−50.0%Reduced
Bard Financial Services, Inc.87,895$3.89M0.36%−5,550−5.9%Reduced
Manufacturers Life Insurance Company, The89,096$3.94M0.00%−4,118−4.4%Reduced
Squarepoint Ops LLC92,054$4.07M0.04%−37,886−29.2%Reduced
Russell Investments Group, Ltd.92,320$4.08M0.01%−6,914−7.0%Reduced
Healthcare of Ontario Pension Plan Trust Fund92,700$4.10M0.02%+92,700New
Jefferies Group LLC105,566$4.67M0.14%+105,566New
Private Advisor Group, LLC109,872$4.86M0.06%−27,910−20.3%Reduced
Eventide Asset Management, LLC110,000$4.87M0.10%00.0%Unchanged
Peregrine Capital Management LLC123,396$5.46M0.18%−6,828−5.2%Reduced
DekaBank Deutsche Girozentrale124,776$5.50M0.02%00.0%Unchanged
Legal & General Group Plc128,453$5.68M0.00%−35,501−21.7%Reduced
State of Wisconsin Investment Board129,854$5.74M0.02%−7,379−5.4%Reduced
Sonora Investment Management Group, LLC157,023$5.81M0.75%+700+0.4%Added
BNP Paribas Arbitrage, SA132,740$5.87M0.01%+12,770+10.6%Added
Natixis134,081$5.94M0.03%+134,081New
Fred Alger Management, LLC142,522$6.30M0.03%−4,134−2.8%Reduced
New York State Common Retirement Fund142,900$6.32M0.01%−3,925−2.7%Reduced
Kennedy Capital Management, Inc.144,795$6.40M0.19%+25,113+21.0%Added
Privium Fund Management B.V.148,807$6.59M2.49%−31,300−17.4%Reduced
BLB&B Advisors, LLC149,070$6.59M0.55%−180−0.1%Reduced
Rafferty Asset Management, LLC151,974$6.72M0.07%+32,691+27.4%Added
Susquehanna Fundamental Investments, LLC153,636$6.79M0.12%+153,636New
Credit Suisse AG154,698$6.84M0.01%+4,977+3.3%Added
Rhumbline Advisers155,714$6.89M0.01%+1,212+0.8%Added
Altrinsic Global Advisors LLC161,246$7.13M0.33%−25,208−13.5%Reduced
Tocqueville Asset Management L.P.162,394$7.18M0.15%−211−0.1%Reduced
State Board of Administration of Florida Retirement System163,255$7.22M0.02%−870−0.5%Reduced
Sector Gamma AS164,223$7.26M1.87%−1,216−0.7%Reduced
California State Teachers Retirement System165,925$7.34M0.01%−3,489−2.1%Reduced
Citigroup Inc176,992$7.83M0.01%+27,861+18.7%Added
Man Group plc177,597$7.86M0.04%––
AXA S.A.182,356$8.07M0.03%+23,821+15.0%Added
Hudson Bay Capital Management LP199,800$8.84M0.09%+14,800+8.0%Added
Tang Capital Management LLC200,000$8.85M1.08%00.0%Unchanged
Eversept Partners, LP201,833$8.93M1.06%+115,522+133.8%Added
Schonfeld Strategic Advisors LLC207,672$9.19M0.08%+77,649+59.7%Added
D. E. Shaw & Co., Inc.209,445$9.26M0.02%+82,824+65.4%Added
Connor, Clark & Lunn Investment Management Ltd.229,061$10.1M0.07%+97,078+73.6%Added
Raymond James & Associates238,168$10.5M0.01%−8,281−3.4%Reduced
Parkman Healthcare Partners LLC241,945$10.7M3.04%+67,645+38.8%Added
Sicart Associates LLC253,976$11.2M3.98%−34,775−12.0%Reduced
Pictet Asset Management SA276,977$12.3M0.02%+38,638+16.2%Added
UBS Asset Management Americas Inc279,624$12.4M0.01%+73,835+35.9%Added
Two Sigma Investments, LP292,994$13.0M0.04%−267,037−47.7%Reduced
Invesco Ltd.295,199$13.1M0.00%−30,786−9.4%Reduced