CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in ACLX — Arcellx, Inc.
CIK 884546
SAN FRANCISCO, CA
Position in ACLX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$39,738,283
+$17,582,476 QoQ
Shares Held
346,092
+1.8% QoQ
Ownership
0.592%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2022
17 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ACLX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $6,182,986,350 across 288 Biotechnology names. ACLX ranks #33 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
1,920,871 | $857,745,736 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
804,508 | $621,595,061 | |
| 3 | MRNA |
Moderna, Inc.
|
4,734,356 | $240,505,284 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
673,356 | $222,793,299 | |
| 5 | INSM |
INSMED Inc
|
1,069,390 | $174,866,652 | |
| 6 | RVMD |
Revolution Medicines, Inc.
|
1,735,476 | $168,775,041 | |
| 7 | INCY |
Incyte Corp
|
1,729,102 | $162,743,080 | |
| 8 | BBIO |
BridgeBio Pharma, Inc.
|
1,976,094 | $146,744,740 |
All Filings in ACLX
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $39,738,283 | 346,092 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $22,155,807 | 339,813 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $27,132,900 | 330,486 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $21,024,061 | 319,272 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $22,103,854 | 336,949 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $26,311,188 | 343,085 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $27,399,046 | 328,093 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $17,323,754 | 313,893 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $19,613,795 | 282,010 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $14,661,879 | 264,178 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $9,345,161 | 260,456 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $7,618,459 | 240,938 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $6,385,403 | 207,251 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $6,433,740 | 207,674 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $3,807,288 | 202,839 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,191,508 | 65,902 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $934,615 | 66,663 | Shares | Sole | 2022-05-13 | |
| No filing history on record for this holder in this stock. | ||||||