450 tracked 13F filers disclose a position in IONS as of the latest SEC 13F filings, a combined $10.0B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $1.8B | 24.6M | ▲+2.0% Added · +485K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $784.1M | 10.4M | ▼−1.9% Reduced · −205K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $586.4M | 7.8M | →First observed position No prior filed position | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $534.5M | 7.1M | →First observed position No prior filed position | Q1 2026 | |
| 5 | T. Rowe Price Investment Management, Inc. | Withheld | 6.2M | ▼−32% Reduced · −2.9M sh | Q1 2026 | |
| 6 | TWO SIGMA INVESTMENTS, LP | $439.8M | 5.9M | ▲+120% Added · +3.2M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $343.7M | 4.3M | ▲+8.5% Added · +339K sh | Q2 2026 | |
| 8 | ROYAL BANK OF CANADA | $285.5M | 3.8M | ▲+240% Added · +2.7M sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $294.8M | 3.6M | ▼−10% Reduced · −400K sh | Q2 2026 | |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | $227.2M | 3.0M | ▲+1.3% Added · +37K sh | Q1 2026 | |
| 11 | JPMORGAN CHASE & CO | $171.4M | 2.4M | ▲+2.5% Added · +59K sh | Q1 2026 | |
| 12 | Tweedy, Browne Co LLC | $180.8M | 2.3M | ▲+0.2% Added · +5K sh | Q2 2026 | |
| 13 | Artisan Partners Limited Partnership | $154.6M | 2.1M | ▲+74% Added · +877K sh | Q1 2026 | |
| 14 | BAKER BROS. ADVISORS LP | $153.8M | 2.0M | ▲+14% Added · +256K sh | Q1 2026 | |
| 15 | DEERFIELD MANAGEMENT COMPANY, L.P. | $148.7M | 2.0M | —Held | Q1 2026 | |
| 16 | Deep Track Capital, LP | $146.4M | 1.9M | ▲+15% Added · +250K sh | Q1 2026 | |
| 17 | GOLDMAN SACHS GROUP INC | $127.6M | 1.7M | ▲+99% Added · +844K sh | Q1 2026 | |
| 18 | AMERICAN CENTURY COMPANIES INC | $124.9M | 1.7M | ▲+2.9% Added · +47K sh | Q1 2026 | |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $118.9M | 1.6M | ▲+2.7% Added · +41K sh | Q1 2026 | |
| 20 | FRANKLIN RESOURCES INC | $118.3M | 1.6M | ▲+19% Added · +254K sh | Q1 2026 | |
| 21 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $110.8M | 1.5M | ▲+6.3% Added · +87K sh | Q1 2026 | |
| 22 | Polar Capital Holdings Plc | $115.3M | 1.5M | ▲+75% Added · +625K sh | Q2 2026 | |
| 23 | Pictet Asset Management Holding SA | $107.1M | 1.4M | ▲+1.2% Added · +17K sh | Q1 2026 | |
| 24 | MILLENNIUM MANAGEMENT LLC | $79.0M | 1.1M | ▲11× Added · +958K sh | Q1 2026 | |
| 25 | MORGAN STANLEY | $77.1M | 1.0M | ▲+0.6% Added · +7K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 4 funds opened a new position in IONS and 33 added to an existing one, while 18 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 268 funds | $411.0B |
| ELI LILLY & COLLY | 266 funds | $81.2B |
| MICROSOFT CORPMSFT | 265 funds | $286.7B |
| AMAZON.COM INCAMZN | 264 funds | $211.1B |
| META PLATFORMS INC-CLASS AMETA | 261 funds | $115.9B |
| BROADCOM INCAVGO | 258 funds | $162.6B |
| ALPHABET INC-CL AGOOGL | 256 funds | $180.9B |
| APPLE INCAAPL | 254 funds | $315.8B |
| JOHNSON & JOHNSONJNJ | 250 funds | $50.9B |
| INTUITIVE SURGICAL INCISRG | 249 funds | $28.2B |
| TESLA INCTSLA | 248 funds | $72.3B |
| MICRON TECHNOLOGY INCMU | 248 funds | $46.4B |
Ranked by how many of IONS's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 31, 2026 | Hayden Michael R | Director | Buy (P) | 5K | $258K |
| Jul 30, 2026 | Hayden Michael R | Director | Buy (P) | 15K | $801K |
| Jul 7, 2026 | Diaz Allene M. | Director | Sell (S) | 10K | $864K |
| Jul 7, 2026 | Kordasiewicz Holly B. | EVP, Chief Development Officer | Sell (S) | 362 | $31K |
| Jul 7, 2026 | BENNETT C FRANK | EVP, Chief Scientific Officer | Sell (S) | 6K | $463K |
| Jul 7, 2026 | BENNETT C FRANK | EVP, Chief Scientific Officer | Sell (S) | 15K | $1.3M |
| Jul 1, 2026 | KLEIN JOSEPH III | Director | Sell (S) | 99 | $8K |
| Jul 1, 2026 | KLEIN JOSEPH III | Director | Sell (S) | 11K | $903K |
| Jun 26, 2026 | Monia Brett P | Chief Executive Officer, Director | Sell (S) | 50K | $4.0M |
| Jun 26, 2026 | Baroldi Joseph | EVP, Chief Business Officer | Sell (S) | 6K | $452K |
| Jun 26, 2026 | Schneider Eugene | EVP, Chf Clinical Develop Ofcr | Sell (S) | 26K | $2.1M |
| Jun 26, 2026 | O'NEIL PATRICK R. | EVP CLO & General Counsel | Sell (S) | 3K | $246K |
| Class | 13F holders | Value held |
|---|---|---|
| IONSthis pagecs | 450 funds | $10.0B |
| IONS 1.75 06/15/28NOTE 1.750% 6/1 | 46 funds | $837.8M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for IONS
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/IONS/capital-change-brief"
Use Arkolith's capital_change_brief for IONS. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for IONS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.