Position in IONS
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$784,125,511
-$58,226,923 QoQ
Shares Held
10,442,476
-1.9% QoQ
Ownership
6.32%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 95.3782608645689.ToString("F0")%
Shared 0.ToString("F0")%
None 4.621739135431099.ToString("F0")%
Common Shares in IONS Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026BlackRock, Inc. holds $71,871,411,786 across 472 Biotechnology names. IONS ranks #21 (1.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
23,969,517 | $10,703,348,112 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
8,947,735 | $6,913,377,962 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
10,444,908 | $3,455,906,700 | |
| 4 | INSM |
INSMED Inc
|
16,678,146 | $2,727,210,424 | |
| 5 | INCY |
Incyte Corp
|
18,978,198 | $1,786,227,985 | |
| 6 | MRNA |
Moderna, Inc.
|
29,635,876 | $1,505,502,491 | |
| 7 | EXEL |
Exelixis, Inc.
|
30,816,309 | $1,321,711,486 | |
| 8 | RPRX |
Royalty Pharma plc
|
25,907,745 | $1,242,794,517 |
All Filings in IONS
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $784,125,511 | 10,442,476 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $842,352,434 | 10,647,863 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $683,504,225 | 10,447,940 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $430,537,969 | 10,896,937 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $339,848,204 | 11,264,442 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $407,827,548 | 11,665,548 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $433,169,691 | 10,813,023 | Shares | Sole | 2024-11-13 | |
| No filing history on record for this holder in this stock. | ||||||