SCHEDULE Filed 2025-02-27 Event 2025-02-27 SEC 0000950170-25-029092 →

Elghandour Rami → Arcellx, Inc. ACLX

Stake: 6.90% Shares: 3,997,132 CUSIP: 03940C100 Class: Common stock, par value $0.001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

8 13D/G filings on this issuer

7 other filings besides this one

Filer Track Record

2 filings by this filer

1 other filing in the data moat

Short Interest · settle 2026-04-15

DTC 2.52

1,800,274 shares short · -20.7% vs prior

Post-Filing Returns · since 2025-02-27 on ACLX

+1 day

0.0%

+5 days

0.0%

+30 days

0.0%

+60 days

0.0%

+90 days

0.0%

+180 days

0.0%

Anchor price 115.07 on closest trading day on/after 2025-02-27. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on Arcellx, Inc.

Filed	Form	Filer	Stake	Shares
2026-04-30	SCHEDULE 13D/A	New Enterprise Associates 15, L.P.	—	0	view →
2026-04-28	SCHEDULE 13D/A	GILEAD SCIENCES, INC.	—	100	view →
2026-04-28	SCHEDULE 13D/A	Elghandour Rami	—	0	view →
2023-12-18	SC	SR ONE CAPITAL MANAGEMENT, LLC	—	—	view →
2023-06-02	SC	SR ONE CAPITAL MANAGEMENT, LLC	—	—	view →
2023-01-24	SC	New Enterprise Associates 15, L.P.	—	—	view →
2022-06-27	SC	SR ONE CAPITAL MANAGEMENT, LLC	—	—	view →

Other Filings by Elghandour Rami

Filed	Form	Issuer	Stake	Shares
2026-04-28	SCHEDULE 13D/A	Arcellx, Inc.	—	0	view →

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