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ISSUER PROFILE · CIK 0001786205 · CUSIP 03940C100

Arcellx, Inc.

8 13D/G filings 4 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
8
3 SCHEDULE 13D/A · 1 SCHEDULE · 4 SC
Distinct filers
4
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
no FINRA match

13D/G Filings Timeline · 8 total

FiledFormFilerStakeSharesIntent
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 →
2025-02-27 SCHEDULE Elghandour Rami 6.90% 3,997,132 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 →

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