CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in ASMB — Assembly Biosciences, Inc.
CIK 884546
SAN FRANCISCO, CA
Position in ASMB
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$800,437
+$572,434 QoQ
Shares Held
29,128
+334.5% QoQ
Ownership
0.143%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#43
of 92 holders
Holding Since
Mar 2020
16 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ASMB 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. ASMB ranks #239 (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 ASMB
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $800,437 | 29,128 | Shares | Sole | 2026-08-14 | |
| 2025-12-31 | $228,003 | 6,704 | Shares | Sole | 2026-02-13 | |
| 2023-12-31 | $26,610 | 32,452 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $28,882 | 32,452 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $37,319 | 32,452 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $27,259 | 32,452 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $42,187 | 32,452 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $53,221 | 32,452 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $68,149 | 32,452 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $105,818 | 51,368 | Shares | Sole | 2022-05-13 | |
| 2021-06-30 | $752,898 | 194,046 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $1,024,516 | 222,721 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $1,298,457 | 214,621 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $3,851,431 | 234,272 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $4,922,292 | 211,076 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $2,720,874 | 183,471 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||