Arcellx, Inc.
US ˙ NasdaqGS ˙ US03940C1009
QUESTO SIMBOLO NON E' PIU' ATTIVO

SecurityACLX / Arcellx, Inc.
InstitutionONEQ - Fidelity Nasdaq Composite Index Tracking Stock
Latest Disclosed Ownership13,930 shares
Latest Disclosed Value $ 864,495
ONEQ - Fidelity Nasdaq Composite Index Tracking Stock reports 0.43% increase in ownership of ACLX / Arcellx, Inc.

On July 24, 2025 - ONEQ - Fidelity Nasdaq Composite Index Tracking Stock filed a NPORT-P form disclosing ownership of 13,930 shares of Arcellx, Inc. (US:ACLX) valued at $864,496 USD as of May 31, 2025. The entity filed a previous NPORT-P on April 25, 2025 disclosing 13,870 shares of Arcellx, Inc.. This represents a change in shares of 0.43% during the quarter. The current value of the position is $1,602,925 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-07-24 2025-05-31 NP ARCELLX EC US03940C1009 13,930 60 0.43 864 -3.89 0.0114
2025-04-25 2025-02-28 NP ARCELLX EC US03940C1009 13,870 324 2.39 899 -24.58 0.0121
2025-01-27 2024-11-30 NP ARCELLX EC US03940C1009 13,546 -2,178 -13.85 1,193 10.37 0.0162
2024-10-29 2024-08-31 NP ARCELLX EC US03940C1009 15,724 152 0.98 1,081 33.50 0.0160
2024-07-26 2024-05-31 NP ARCELLX EC US03940C1009 15,572 200 1.30 810 -19.98 0.0128
2024-04-24 2024-02-29 NP ARCELLX EC US03940C1009 15,372 248 1.64 1,012 27.33 0.0169
2024-01-24 2023-11-30 NP ARCELLX EC US03940C1009 15,124 -554 -3.53 794 41.53 0.0152
2023-10-27 2023-08-31 NP ARCELLX EC US03940C1009 15,678 240 1.55 562 -17.62 0.0110
2023-07-26 2023-05-31 NP ARCELLX EC US03940C1009 15,438 48 0.31 682 58.00 0.0147
2023-04-27 2023-02-28 NP ARCELLX EC US03940C1009 15,390 360 2.40 431 44.15 0.0105
2023-01-26 2022-11-30 NP ARCELLX EC US03940C1009 15,030 376 2.57 300 13.69 0.0075
2022-10-26 2022-08-31 NP ARCELLX EC US03940C1009 14,654 14,654 263 0.0066
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.