Arcellx, Inc.
43 SEC EDGAR filings indexed (CIK 0001786205) across 13 form types.
Filing profile
Arcellx, Inc. (ACLX) has 43 SEC filings indexed on SecFilingDex, across 13 form types filed over roughly 2 years, from April 10, 2024 to April 30, 2026. The filer is classified under Biological Products (SIC 2836).
Its most frequent disclosure is the 8-K (Material event) with 8 filings — Current report announcing a material event, such as an acquisition, executive change, or earnings release. 22 of these filings were disclosed in the twelve months to April 30, 2026. 11 of the 43 are amendments (a corrected or updated version of an earlier filing).
Disclosure mix
- 88-KMaterial event · event-driven
- 8Form 4Insider transaction · within 2 business days of transaction
- 610-QQuarterly report · quarterly
- 6SC 13G/A5%+ passive stake · event-driven
- 3Form 4/AInsider transaction · within 2 business days of transaction
- 210-KAnnual report · annual
- 2DEF 14AProxy statement · annual (pre-meeting)
- 2DEFA14ASEC filing
- 2Form 3Initial insider ownership · within 10 days of becoming an insider
- 1SC 13D/A5%+ activist stake · event-driven (within 10 days)
- 110-K/AAnnual report · annual
- 1SC 13G5%+ passive stake · event-driven
- 1SC 13D5%+ activist stake · event-driven (within 10 days)
Profile derived from 43 indexed filings; every figure traces to the filing records above, each linking back to its original SEC EDGAR document. Filing counts reflect SecFilingDex's current index, not the filer's complete EDGAR history.
All filings
- SC 13D/A0001072613-26-000356
- 8-K0001104659-26-050318
- Form 40001193125-26-187305
- Form 40001193125-26-188029
- Form 40001417976-26-000002
- Form 40001572000-26-000002
- Form 40001663771-26-000002
- Form 40001670683-26-000002
- Form 40001930862-26-000008
- Form 40002018445-26-000002
- 10-K/A0001193125-26-177460
- 10-K0001193125-26-076876
- 8-K0001193125-26-063955
- 8-K0001193125-25-311276
- 8-K0001193125-25-266866
- 10-Q0001193125-25-266932
- 8-K0000950170-25-105015
- 10-Q0000950170-25-105064
- 8-K0001193125-25-129522
- 8-K0001193125-25-119506
- 10-Q0000950170-25-067100
- 8-K0001193125-25-116023
- DEF 14A0001193125-25-084363
- DEFA14A0001193125-25-084364
- Form 30001415889-25-008690
- Form 30001415889-25-008691
- 10-K0000950170-25-029150
- Form 4/A0001415889-25-001340
- Form 4/A0001415889-25-001341
- Form 4/A0001415889-25-001342
- SC 13G0001104659-24-122103
- SC 13G/A0001104659-24-119043
- SC 13G/A0001193125-24-258671
- SC 13G/A0000315066-24-002627
- SC 13D0001193125-24-254203
- SC 13G/A0002012383-24-003501
- 10-Q0000950170-24-123442
- SC 13G/A0002012383-24-001312
- 10-Q0000950170-24-094120
- 10-Q0000950170-24-057007
- DEF 14A0001193125-24-093275
- DEFA14A0001193125-24-093299
- SC 13G/A0000315066-24-001714
Authoritative source
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