Rami Elghandour - 11 Feb 2026 Form 4 Insider Report for Arcellx, Inc. (ACLX)

Role
President, CEO and Chairman of the Board, Director
Signature
/s/ Michelle Gilson, as Attorney-in-Fact
Issuer symbol
ACLX
Transactions as of
11 Feb 2026
Net transactions value
$0
Form type
4
Filing time
13 Feb 2026, 19:49:12 UTC
Previous filing
06 Jan 2026
Next filing
27 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Elghandour Rami President, CEO and Chairman of the Board, Director C/O ARCELLX, INC, 800 BRIDGE PARKWAY, REDWOOD CITY /s/ Michelle Gilson, as Attorney-in-Fact 13 Feb 2026 0001613689

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACLX Common Stock Gift $0 -218,500 -28% $0.000000 563,967 11 Feb 2026 Direct F1
holding ACLX Common Stock 218,500 11 Feb 2026 By trust F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On February 11, 2026, the Reporting Person's spouse transferred, for no consideration, 218,500 shares to a spousal lifetime access non-grantor trust of which the Reporting Person is a beneficiary and for which the Reporting Person may be deemed to continue to have Section 16 beneficial ownership. The Reporting Person disclaims beneficial ownership except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such shares for Section 16 or any other purpose.

Remarks:

President, CEO and Chairman of the Board