CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in IONS — Ionis Pharmaceuticals Inc
CIK 884546
SAN FRANCISCO, CA
Position in IONS
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$127,264,731
+$8,377,288 QoQ
Shares Held
1,605,054
+1.4% QoQ
Ownership
0.966%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#22
of 513 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IONS Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $7,402,603,842 across 299 Biotechnology names. IONS ranks #12 (1.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
2,041,282 | $1,013,966,007 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
846,306 | $527,705,642 | |
| 3 | RVMD |
Revolution Medicines, Inc.
|
1,917,025 | $359,020,441 | |
| 4 | MRNA |
Moderna, Inc.
|
4,838,884 | $338,867,045 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
755,377 | $227,391,137 | |
| 6 | INCY |
Incyte Corp
|
1,692,439 | $191,854,884 | |
| 7 | RPRX |
Royalty Pharma plc
|
3,083,528 | $172,893,414 | |
| 8 | CYTK |
Cytokinetics Inc
|
1,565,781 | $133,388,883 |
All Filings in IONS
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $127,264,731 | 1,605,054 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $118,887,443 | 1,583,266 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $121,975,041 | 1,541,841 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $99,435,194 | 1,519,951 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $58,783,689 | 1,487,818 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $43,554,286 | 1,443,629 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $51,791,142 | 1,481,440 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $57,807,381 | 1,443,020 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $63,297,531 | 1,328,106 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $56,414,302 | 1,301,368 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $64,518,388 | 1,275,319 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $56,351,045 | 1,242,307 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $49,203,996 | 1,199,220 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $42,401,685 | 1,186,393 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $47,449,242 | 1,256,268 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $53,179,763 | 1,202,346 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $42,722,005 | 1,154,025 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $42,145,112 | 1,137,827 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $33,273,348 | 1,093,439 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $35,878,811 | 1,069,732 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $28,479,864 | 713,960 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $31,314,460 | 696,496 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $39,092,264 | 691,409 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $32,323,129 | 681,204 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $36,347,012 | 616,469 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $28,873,848 | 610,699 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||