New Enterprise Associates 15, L.P. - Aug 12, 2025 SCHEDULE 13D/A Report for Arcellx, Inc. Common Stock $0.001 par value per share (ACLX)

Filing Manager
New Enterprise Associates 15, L.P.
Reporting Manager
Scott D. Sandell
Security
Arcellx, Inc. Common Stock $0.001 par value per share
Symbol
ACLX
Shares outstanding
55.5M shares
Disclosed Ownership
3.06M shares
Ownership
5.51%
Form type
SCHEDULE 13D/A
Date filed
8/14/2025, 09:15 PM
Date of event
Aug 12, 2025
Previous filing
May 12, 2025
SEC
View on sec.gov

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
New Enterprise Associates 15, L.P. 5.49% 3.05M 0 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer 0001629794
NEA Partners 15, L.P. 5.49% 3.05M 0 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer 0001640031
NEA 15 GP, LLC 5.49% 3.05M 0 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer 0001640033
Forest Baskett 5.49% 3.05M 0 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Forest Baskett 0001277631
Anthony A. Florence, Jr. 5.49% 3.05M 0 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr. 0001559827
Mohamad H. Makhzoumi 5.49% 3.05M 0 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi 0001630226
Scott D. Sandell 5.51% 3.06M 7.91K 3.05M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Scott D. Sandell 0001237289