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 2025
Institutional positions in Ionis Pharmaceuticals Inc as of Sep 30, 2025. 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
- 437
- +78 vs. Q2 2025
- Shares held
- 168.2M
- −221.1K (−0.1%) vs. Q2 2025
- Total value
- $11.0B
- +$4.36B (+65.5%) vs. Q2 2025
- New holders
- 115
- 136 more added
- Sold out
- 37
- 116 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 515 | $14.3B |
| Q1 2026 | 497 | $13.0B |
| Q4 2025 | 494 | $13.5B |
| Q3 2025 | 437 | $11.0B |
| Q2 2025 | 363 | $6.67B |
| Q1 2025 | 344 | $5.03B |
| Q4 2024 | 356 | $5.61B |
| Q3 2024 | 354 | $6.31B |
| Q2 2024 | 357 | $6.83B |
| Q1 2024 | 361 | $6.17B |
| Q4 2023 | 365 | $7.21B |
| Q3 2023 | 312 | $6.35B |
| Q2 2023 | 305 | $5.60B |
| Q1 2023 | 315 | $4.69B |
| Q4 2022 | 339 | $4.93B |
| Q3 2022 | 350 | $5.59B |
| Q2 2022 | 351 | $4.61B |
| Q1 2022 | 333 | $4.63B |
| Q4 2021 | 341 | $3.75B |
| Q3 2021 | 326 | $4.08B |
| Q2 2021 | 338 | $4.96B |
| Q1 2021 | 365 | $5.55B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Ionis Pharmaceuticals Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Truvestments Capital LLC | 1 | $49 | 0.00% | 00.0% | Unchanged |
| American Capital Advisory, LLC | 2 | $131 | 0.00% | +2 | New |
| Clearstead Advisors, LLC | 3 | $197 | 0.00% | −6,997−100.0% | Reduced |
| IMA Wealth, Inc. | 5 | $327 | 0.00% | 00.0% | Unchanged |
| Cornerstone Planning Group LLC | 5 | $371 | 0.00% | −7−58.3% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 7 | $458 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 7 | $458 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 7 | $458 | 0.00% | +7 | New |
| Ronald Blue Trust, Inc. | 10 | $654 | 0.00% | +10 | New |
| CIBC Private Wealth Group, LLC | 11 | $720 | 0.00% | +9+450.0% | Added |
| Rakuten Securities, Inc. | 11 | $720 | 0.00% | +11 | New |
| Rothschild Investment LLC | 13 | $850 | 0.00% | +3+30.0% | Added |
| Quaker Wealth Management, LLC | 14 | $916 | 0.00% | 00.0% | Unchanged |
| Mascoma Wealth Management LLC | 14 | $916 | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 17 | $1.11K | 0.00% | 00.0% | Unchanged |
| Cromwell Holdings LLC | 18 | $1.18K | 0.00% | 00.0% | Unchanged |
| Key Financial Inc | 19 | $1.25K | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 21 | $1.37K | 0.00% | 00.0% | Unchanged |
| Heartwood Wealth Advisors LLC | 21 | $1.37K | 0.00% | +21 | New |
| Horizon Investments, LLC | 22 | $1.44K | 0.00% | +7+46.7% | Added |
| Bruce G. Allen Investments, LLC | 23 | $1.50K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 23 | $1.50K | 0.00% | +7+43.8% | Added |
| Principia Wealth Advisory, LLC | 26 | $1.70K | 0.00% | +1+4.0% | Added |
| Raffa Wealth Management, LLC | 28 | $1.83K | 0.00% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 36 | $2.00K | 0.00% | 00.0% | Unchanged |
| Hemington Wealth Management | 42 | $2.00K | 0.00% | −2−4.5% | Reduced |
| Cheviot Value Management, LLC | 28 | $2.06K | 0.00% | 00.0% | Unchanged |
| South State Corp. | 33 | $2.16K | 0.00% | −18−35.3% | Reduced |
| Rossby Financial, LCC | 34 | $2.24K | 0.00% | 00.0% | Unchanged |
| Highline Wealth Partners LLC | 38 | $2.49K | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 45 | $2.94K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 45 | $2.94K | 0.00% | 00.0% | Unchanged |
| FIL Ltd | 47 | $3.08K | 0.00% | +47 | New |
| Crewe Advisors LLC | 48 | $3.14K | 0.00% | +48 | New |
| Bell Investment Advisors, Inc | 61 | $3.99K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 63 | $4.12K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 65 | $4.25K | 0.00% | 00.0% | Unchanged |
| WPG Advisers, LLC | 70 | $4.58K | 0.00% | 00.0% | Unchanged |
| Clear Investment Research, LLC | 71 | $4.64K | 0.01% | 00.0% | Unchanged |
| Assetmark, Inc | 75 | $4.91K | 0.00% | 00.0% | Unchanged |
| Orion Capital Management LLC | 80 | $5.23K | 0.00% | 00.0% | Unchanged |
| TD Private Client Wealth LLC | 80 | $5.23K | 0.00% | +36+81.8% | Added |
| Ameritas Advisory Services, LLC | 87 | $5.69K | 0.00% | −59−40.4% | Reduced |
| Massmutual Trust Co FSB | 89 | $5.82K | 0.00% | −14−13.6% | Reduced |
| Quent Capital, LLC | 98 | $6.41K | 0.00% | +98 | New |
| Creekmur Asset Management LLC | 100 | $6.54K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 104 | $6.67K | 0.00% | +104 | New |
| Principal Securities, Inc. | 111 | $7.26K | 0.00% | +48+76.2% | Added |
| Bogart Wealth, LLC | 118 | $7.72K | 0.00% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 119 | $7.79K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 125 | $8.18K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 133 | $9.00K | 0.00% | +94+241.0% | Added |
| Wealth Preservation Advisors, LLC | 150 | $9.81K | 0.01% | 00.0% | Unchanged |
| Pacifica Partners Inc. | 150 | $9.87K | 0.00% | 00.0% | Unchanged |
| Bayforest Capital Ltd | 154 | $10.1K | 0.00% | +154 | New |
| AllSquare Wealth Management LLC | 198 | $13.0K | 0.01% | 00.0% | Unchanged |
| Atlantic Union Bankshares Corp | 200 | $13.1K | 0.00% | 00.0% | Unchanged |
| Umb Bank N A | 200 | $13.1K | 0.00% | +200 | New |
| Harbour Investments, Inc. | 210 | $13.7K | 0.00% | +10+5.0% | Added |
| Global Trust Asset Management, LLC | 218 | $14.3K | 0.01% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 231 | $15.2K | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 238 | $15.5K | 0.00% | +238 | New |
| Parkside Financial Bank & Trust | 240 | $15.7K | 0.00% | −198−45.2% | Reduced |
| Covestor Ltd | 246 | $16.0K | 0.01% | −59−19.3% | Reduced |
| Wealthspire Advisors, LLC | 245 | $16.0K | 0.00% | +245 | New |
| MTM Investment Management, LLC | 258 | $16.9K | 0.01% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 265 | $17.0K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 267 | $17.5K | 0.00% | +10+3.9% | Added |
| MAI Capital Management | 267 | $17.5K | 0.00% | −159−37.3% | Reduced |
| Storebrand Asset Management AS | 271 | $17.7K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 273 | $17.9K | 0.00% | +273 | New |
| Strategic Advocates LLC | 287 | $18.8K | 0.00% | +287 | New |
| Capital Advisors, Ltd. LLC | 295 | $19.0K | 0.00% | 00.0% | Unchanged |
| Eastern Bank | 300 | $19.6K | 0.00% | 00.0% | Unchanged |
| Global X Japan Co., Ltd. | 321 | $21.0K | 0.00% | +62+23.9% | Added |
| Salomon & Ludwin, LLC | 332 | $23.0K | 0.00% | +332 | New |
| Golden State Wealth Management, LLC | 376 | $24.6K | 0.00% | +250+198.4% | Added |
| Steigerwald, Gordon & Koch Inc. | 380 | $24.9K | 0.00% | +380 | New |
| ORG Wealth Partners, LLC | 400 | $26.2K | 0.01% | 00.0% | Unchanged |
| Mather Group, LLC. | 410 | $26.8K | 0.00% | +410 | New |
| Quest Partners LLC | 453 | $29.6K | 0.00% | −382−45.7% | Reduced |
| AdvisorNet Financial, Inc | 469 | $30.7K | 0.00% | +41+9.6% | Added |
| Farther Finance Advisors, LLC | 566 | $37.0K | 0.00% | +133+30.7% | Added |
| Quarry LP | 588 | $38.5K | 0.01% | +588 | New |
| Archer Investment Corp | 600 | $39.3K | 0.01% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 616 | $40.3K | 0.00% | +616 | New |
| Huntington National Bank | 654 | $42.8K | 0.00% | −141−17.7% | Reduced |
| Johnson Financial Group, Inc. | 670 | $43.8K | 0.00% | +670 | New |
| Meeder Asset Management Inc | 713 | $46.6K | 0.00% | +614+620.2% | Added |
| EverSource Wealth Advisors, LLC | 827 | $54.1K | 0.00% | −274−24.9% | Reduced |
| Allworth Financial LP | 840 | $55.0K | 0.00% | +100+13.5% | Added |
| Sterling Capital Management LLC | 898 | $58.7K | 0.00% | −64−6.7% | Reduced |
| Toronto Dominion Bank | 951 | $62.2K | 0.00% | +951 | New |
| Sunbelt Securities, Inc. | 1,014 | $66.3K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 1,069 | $69.9K | 0.00% | −152−12.4% | Reduced |
| IFP Advisors, Inc | 1,070 | $70.0K | 0.00% | +166+18.4% | Added |
| Larson Financial Group LLC | 1,110 | $72.6K | 0.00% | +83+8.1% | Added |
| Itau Unibanco Holding S.A. | 1,121 | $73.3K | 0.00% | −3−0.3% | Reduced |
| Wexford Capital LP | 1,192 | $78.0K | 0.02% | −3,557−74.9% | Reduced |
| Manchester Capital Management LLC | 1,248 | $81.6K | 0.01% | 00.0% | Unchanged |