CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in XFOR — X4 Pharmaceuticals, Inc
CIK 884546
SAN FRANCISCO, CA
Position in XFOR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$1,229,442
+$953,769 QoQ
Shares Held
263,264
+294.4% QoQ
Ownership
0.266%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#28
of 89 holders
Holding Since
Mar 2020
19 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in XFOR 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. XFOR ranks #215 (0.0% 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 XFOR
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,229,442 | 263,264 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $275,673 | 66,749 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $267,152 | 66,788 | Shares | Sole | 2026-02-13 | |
| 2025-03-31 | $113,640 | 481,528 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $321,644 | 438,208 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $293,161 | 438,208 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $254,160 | 438,208 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $450,141 | 323,843 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $271,704 | 323,843 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $352,988 | 323,843 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $628,255 | 323,843 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $36,875 | 42,386 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $42,089 | 42,386 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $72,480 | 42,386 | Shares | Sole | 2022-11-14 | |
| 2021-03-31 | $358,804 | 41,673 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $267,957 | 41,673 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $259,081 | 38,269 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $384,291 | 41,233 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $393,279 | 39,328 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||