CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in ACLX — Arcellx, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in ACLX
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$4,005,610
+$2,237,712 QoQ
Shares Held
34,886
+28.7% QoQ
Ownership
0.060%
of shares outstanding
% of Portfolio
0.00%
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, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $883,936,485 across 222 Biotechnology names. ACLX ranks #37 (0.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
373,481 | $166,774,205 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
154,201 | $119,141,860 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
196,863 | $65,136,060 | |
| 4 | INSM |
INSMED Inc
|
303,182 | $49,576,320 | |
| 5 | RPRX |
Royalty Pharma plc
|
759,042 | $36,411,244 | |
| 6 | INCY |
Incyte Corp
|
241,287 | $22,709,932 | |
| 7 | MRNA |
Moderna, Inc.
|
407,190 | $20,685,252 | |
| 8 | RVMD |
Revolution Medicines, Inc.
|
165,277 | $16,073,188 |
All Filings in ACLX
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,005,610 | 34,886 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $1,767,898 | 27,115 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $2,470,224 | 30,088 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $1,981,228 | 30,087 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $1,990,041 | 30,336 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $2,374,399 | 30,961 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $2,602,756 | 31,167 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $1,769,612 | 32,064 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $2,055,063 | 29,548 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $1,784,769 | 32,158 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $1,213,605 | 33,824 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,719,731 | 86,013 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $754,197 | 24,479 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $5,105,627 | 164,804 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $219,102 | 11,673 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $75,990 | 4,203 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $54,089 | 3,858 | Shares | Sole | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||