4//SEC Filing
Lubner David Charles 4
Accession 0001193125-26-017002
CIK 0001786205other
Filed
Jan 19, 7:00 PM ET
Accepted
Jan 20, 7:59 PM ET
Size
8.6 KB
Accession
0001193125-26-017002
Insider Transaction Report
Form 4
Arcellx, Inc.ACLX
Lubner David Charles
Director
Transactions
- Exercise/Conversion
Common Stock
2026-01-20$6.28/sh+6,000$37,680→ 27,659 total - Sale
Common Stock
[F1]2026-01-20$75.00/sh−6,000$450,000→ 21,659 total - Exercise/Conversion
Stock Option (right to buy)
[F2]2026-01-20−6,000→ 59,405 totalExercise: $6.28Exp: 2031-06-09→ Common Stock (6,000 underlying)
Footnotes (2)
- [F1]The sale of shares reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person on September 29, 2025.
- [F2]Shares issued pursuant to the Issuer's 2017 Equity Incentive Plan (the "2017 Plan"). Subject to the Reporting Person continuing to be a Service Provider (as defined 2017 Plan) through each applicable date, one forty-eighth (1/48th) of the shares subject to the option shall vest each month following the Vesting Commencement Date on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month). "Vesting Commencement Date" shall mean June 9, 2021.
Signature
/s/ Michelle Gilson, as Attorney-in-Fact|2026-01-20
Documents
Issuer
Arcellx, Inc.
CIK 0001786205
Entity typeother
Related Parties
1- filerCIK 0001572000
Filing Metadata
- Form type
- 4
- Filed
- Jan 19, 7:00 PM ET
- Accepted
- Jan 20, 7:59 PM ET
- Size
- 8.6 KB