Reporting Manager
T. Rowe Price Investment Management, Inc.
Symbol
ACLX
Shares outstanding
55,539,000 shares
Disclosed Ownership
6,275,907 shares
Ownership
11%
Form type
SCHEDULE 13G
Filing time
08 Sep 2025, 13:36:48 UTC
Date of event
31 Aug 2025
Next filing
05 Dec 2025

Quoteable Key Fact

"T. Rowe Price Investment Management, Inc. disclosed 11% ownership in ARCELLX INC COMMON STOCK (ACLX) on 31 Aug 2025."

Quick Takeaways

  • T. Rowe Price Investment Management, Inc. filed SCHEDULE 13G for ARCELLX INC COMMON STOCK (ACLX).
  • Disclosed ownership: 11%.
  • Date of event: 31 Aug 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 08 Sep 2025, 13:36.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
T. Rowe Price Investment Management, Inc. 11% 6,275,907 6,135,986 0 Ellen York Vice President