Quick Takeaways
- T. Rowe Price Investment Management, Inc. filed SCHEDULE 13G/A for ARCELLX INC COMMON STOCK (ACLX).
- Disclosed ownership: 17%.
- Date of event: 30 Nov 2025.
T. Rowe Price Investment Management, Inc. - 30 Nov 2025 SCHEDULE 13G/A Report for ARCELLX INC COMMON STOCK (ACLX)
- Filing Manager
- T. Rowe Price Investment Management, Inc.
- Reporting Manager
- T. Rowe Price Investment Management, Inc.
- Security
- ARCELLX INC COMMON STOCK
- Symbol
- ACLX
- Shares outstanding
- 57,859,241 shares
- Disclosed Ownership
- 9,604,634 shares
- Ownership
- 17%
- Form type
- SCHEDULE 13G/A
- Filing time
- 05 Dec 2025, 12:52:13 UTC
- Date of event
- 30 Nov 2025
- Previous filing
- 08 Sep 2025
- Next filing
- 17 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"T. Rowe Price Investment Management, Inc. disclosed 17% ownership in ARCELLX INC COMMON STOCK (ACLX) on 30 Nov 2025."
What Changed
- Previous schedule filing date: 08 Sep 2025.
- Current filing was accepted on 05 Dec 2025, 12:52.
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
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 17% | 9,604,634 | 9,316,307 | 0 | Ellen York | Vice President |