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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 2024

Institutional positions in Ionis Pharmaceuticals Inc as of Dec 31, 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
356
+9 vs. Q3 2024
Shares held
160.5M
+3.10M (+2.0%) vs. Q3 2024
Total value
$5.61B
−$692.3M (−11.0%) vs. Q3 2024
New holders
58
119 more added
Sold out
49
121 more reduced

7 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2024: 356 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 2024: $5.61B
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, Q4 2024

Shares, value and share of portfolio for each institution holding Ionis Pharmaceuticals Inc; share changes are against Q3 2024.

Institutions holding IONS in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Sandy Spring Bank0$90.00%−34−100.0%Reduced
AdvisorNet Financial, Inc1$350.00%00.0%Unchanged
Activest Wealth Management1$350.00%+1New
Cassady Schiller Wealth Management, LLC2$700.00%+2New
Caitong International Asset Management Co., Ltd3$1050.00%+3New
Rothschild Investment LLC5$1750.00%+5New
Principia Wealth Advisory, LLC9$3150.00%+9New
Private Wealth Management Group, LLC10$3500.00%00.0%Unchanged
WealthTrak Capital Management LLC10$3500.00%+10New
Mascoma Wealth Management LLC14$4890.00%+14New
Central Trust Co15$5250.00%+15New
Bokf, NA18$6020.00%+18New
Larson Financial Group LLC18$6290.00%00.0%Unchanged
Key Financial Inc19$6640.00%00.0%Unchanged
Front Row Advisors LLC20$6990.00%00.0%Unchanged
TFC Financial Management21$7350.00%00.0%Unchanged
Lee Danner & Bass Inc22$7690.00%+22New
Cornerstone Planning Group LLC25$8510.00%+25New
Sachetta, LLC27$9440.00%−71−72.4%Reduced
Raffa Wealth Management, LLC28$9790.00%00.0%Unchanged
Avion Wealth54$1.00K0.00%+54New
Assetmark, Inc32$1.12K0.00%+32New
Wolff Wiese Magana LLC41$1.43K0.00%−69−62.7%Reduced
MV Capital Management, Inc.43$1.50K0.00%+41+2,050.0%Added
CoreCap Advisors, LLC45$1.57K0.00%+19+73.1%Added
Private Trust Co NA48$1.68K0.00%00.0%Unchanged
Coppell Advisory Solutions LLC51$1.78K0.00%+51New
Clear Investment Research, LLC51$1.78K0.00%00.0%Unchanged
Versant Capital Management, Inc55$1.92K0.00%−8−12.7%Reduced
Blume Capital Management, Inc.55$1.92K0.00%00.0%Unchanged
Hemington Wealth Management83$2.00K0.00%−1−1.2%Reduced
Leonteq Securities AG63$2.20K0.00%00.0%Unchanged
Principal Securities, Inc.67$2.34K0.00%+63+1,575.0%Added
Semmax Financial Advisors Inc.79$2.40K0.00%00.0%Unchanged
Bogart Wealth, LLC71$2.48K0.00%00.0%Unchanged
Bell Investment Advisors, Inc71$2.48K0.00%00.0%Unchanged
Global Retirement Partners, LLC72$2.52K0.00%−29−28.7%Reduced
Raleigh Capital Management Inc.72$2.52K0.00%00.0%Unchanged
Quent Capital, LLC74$2.59K0.00%00.0%Unchanged
Skopos Labs, Inc.80$2.80K0.00%−4−4.8%Reduced
Orion Capital Management LLC80$2.80K0.00%+80New
Bryn Mawr Trust Co92$3.22K0.00%00.0%Unchanged
Creekmur Asset Management LLC100$3.50K0.00%00.0%Unchanged
Transce3nd, LLC100$3.50K0.00%+100New
SRS Capital Advisors, Inc.104$3.64K0.00%00.0%Unchanged
First Horizon Advisors, Inc.112$3.92K0.00%00.0%Unchanged
GPS Wealth Strategies Group, LLC119$4.16K0.00%00.0%Unchanged
Spire Wealth Management125$4.37K0.00%00.0%Unchanged
Golden State Wealth Management, LLC126$4.41K0.00%+126New
LRI Investments, LLC136$4.75K0.00%00.0%Unchanged
Pacifica Partners Inc.150$5.20K0.00%00.0%Unchanged
Whittier Trust Co of Nevada Inc157$5.48K0.00%00.0%Unchanged
Capital Advisors, Ltd. LLC179$6.00K0.00%+179New
Exchange Traded Concepts, LLC178$6.22K0.00%−17−8.7%Reduced
Whittier Trust Co192$6.71K0.00%−22−10.3%Reduced
AllSquare Wealth Management LLC198$6.92K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.200$6.99K0.00%+200New
Tidemark, LLC200$6.99K0.00%+200New
Massmutual Trust Co FSB233$8.15K0.00%+130+126.2%Added
Riggs Asset Managment Co. Inc.250$8.73K0.00%00.0%Unchanged
SBI Securities Co., Ltd.256$8.95K0.00%+256New
Covestor Ltd246$9.00K0.01%−4−1.6%Reduced
Ronald Blue Trust, Inc.259$9.05K0.00%−27−9.4%Reduced
MAI Capital Management260$9.09K0.00%+260New
Union Bancaire Privee, UBP SA265$9.25K0.00%+265New
Storebrand Asset Management AS271$9.47K0.00%00.0%Unchanged
Global X Japan Co., Ltd.297$10.4K0.00%+62+26.4%Added
Elequin Capital LP325$11.4K0.00%−112−25.6%Reduced
Smartleaf Asset Management LLC328$11.5K0.00%−99−23.2%Reduced
AlphaMark Advisors, LLC369$13.0K0.01%00.0%Unchanged
Global Trust Asset Management, LLC399$13.9K0.01%−75−15.8%Reduced
ORG Wealth Partners, LLC400$14.0K0.00%00.0%Unchanged
Parkside Financial Bank & Trust418$14.6K0.00%+128+44.1%Added
EverSource Wealth Advisors, LLC468$16.4K0.00%+230+96.6%Added
Riverview Trust Co476$16.6K0.02%−11−2.3%Reduced
Danske Bank A/S500$17.5K0.00%−1,600−76.2%Reduced
Daiwa Securities Group Inc.541$19.0K0.00%00.0%Unchanged
Laurel Wealth Advisors LLC600$21.0K0.00%00.0%Unchanged
Archer Investment Corp600$21.0K0.01%00.0%Unchanged
Farther Finance Advisors, LLC651$22.8K0.00%+30+4.8%Added
Mather Group, LLC.651$22.8K0.00%+135+26.2%Added
GAMMA Investing LLC746$26.1K0.00%+82+12.3%Added
Allworth Financial LP855$27.8K0.00%+25+3.0%Added
Harbour Investments, Inc.900$31.5K0.00%00.0%Unchanged
Signaturefd, LLC949$33.2K0.00%+584+160.0%Added
Huntington National Bank951$33.2K0.00%+627+193.5%Added
Parallel Advisors, LLC959$33.5K0.00%−69−6.7%Reduced
Manchester Capital Management LLC1,005$35.1K0.00%+160+18.9%Added
Sunbelt Securities, Inc.1,014$35.4K0.00%00.0%Unchanged
Lindbrook Capital, LLC1,036$36.2K0.00%+671+183.8%Added
Quadrant Capital Group LLC1,086$38.0K0.00%+216+24.8%Added
CIBC Private Wealth Group, LLC1,125$38.4K0.00%−1,300−53.6%Reduced
Itau Unibanco Holding S.A.1,151$40.2K0.00%+70+6.5%Added
Horizon Investments, LLC1,174$41.0K0.00%+73+6.6%Added
IFP Advisors, Inc1,150$49.1K0.00%−76−6.2%Reduced
Twin Lakes Capital Management, LLC1,500$52.4K0.03%00.0%Unchanged
Raiffeisen Bank International AG1,754$62.3K0.00%+1,754New
GWM Advisors LLC1,820$63.6K0.00%00.0%Unchanged
CWM, LLC2,051$72.0K0.00%+310+17.8%Added
Corebridge Financial, Inc.2,759$96.5K0.00%−117−4.1%Reduced