Position in IONS
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$606,680,693
+$126,719,235 QoQ
Shares Held
7,651,415
+19.7% QoQ
Ownership
4.60%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
#5
of 510 holders
Holding Since
Mar 2020
18 quarters on record
Voting authority
Sole 0%
Shared 95%
None 5%
Common Shares in IONS Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026WELLINGTON MANAGEMENT GROUP LLP holds $14,994,233,945 across 206 Biotechnology names. IONS ranks #6 (4.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
3,247,658 | $1,613,209,155 | |
| 2 | ARGX |
Argenx SE
|
930,548 | $863,334,513 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
|
1,270,087 | $791,950,042 | |
| 4 | RVMD |
Revolution Medicines, Inc.
|
3,843,415 | $719,794,757 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
2,110,407 | $635,295,816 | |
| 6 | IONS |
Ionis Pharmaceuticals Inc
This page
|
7,651,415 | $606,680,693 | |
| 7 | CYTK |
Cytokinetics Inc
|
6,931,770 | $590,517,483 | |
| 8 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
825,714 | $443,367,129 |
All Filings in IONS
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18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $606,680,693 | 7,651,415 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $479,961,458 | 6,391,816 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $495,254,305 | 6,260,325 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $431,040,011 | 6,588,811 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $250,721,607 | 6,345,776 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $253,923,418 | 8,416,421 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $303,178,291 | 8,672,148 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $349,955,625 | 8,735,787 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $313,069,387 | 6,568,808 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $246,908,549 | 5,695,699 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $233,572,915 | 4,616,978 | Shares | Defined | 2024-02-12 | |
| 2023-09-30 | $79,861,948 | 1,760,625 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $37,531,083 | 914,723 | Shares | Defined | 2023-08-14 | |
| 2021-12-31 | $399,666 | 13,134 | Shares | Defined | 2022-02-11 | |
| 2021-06-30 | $235,789 | 5,911 | Shares | Defined | 2021-08-16 | |
| 2020-09-30 | $41,233,716 | 868,993 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $102,140,179 | 1,732,364 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $188,421,057 | 3,985,217 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||