Key facts
- AMERICAN CENTURY INVESTMENT MANAGEMENT INC filed SCHEDULE 13G/A for Axcelis Technologies, Inc. Common Stock (ACLS).
- Disclosed ownership: 4.3%.
- Date of event: 30 Sep 2025.
AMERICAN CENTURY INVESTMENT MANAGEMENT INC - 30 Sep 2025 SCHEDULE 13G/A Report for Axcelis Technologies, Inc. Common Stock (ACLS)
- Filing Manager
- AMERICAN CENTURY INVESTMENT MANAGEMENT INC
- Reporting Manager
- American Century Investment Management, Inc.
- Symbol
- ACLS
- Shares outstanding
- 31,296,767 shares
- Disclosed Ownership
- 1,345,761 shares
- Ownership
- 4.3%
- Form type
- SCHEDULE 13G/A
- Filing time
- 14 Nov 2025, 09:46:27 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 14 Aug 2025
- SEC
- View on sec.gov
Key filing fact
AMERICAN CENTURY INVESTMENT MANAGEMENT INC disclosed 4.3% ownership in Axcelis Technologies, Inc. Common Stock (ACLS) on 30 Sep 2025.
Change
- Previous schedule filing date: 14 Aug 2025.
- Current filing was accepted on 14 Nov 2025, 09:46.
Research use
- 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.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (3)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| American Century Investment Management, Inc. | 4.3% | 1,345,761 | 1,307,975 | 0 | American Century Investment Management, Inc. | /s/ John Pak / Senior Vice President | |
| American Century Companies, Inc. | 4.3% | 1,345,761 | 1,307,975 | 0 | American Century Companies, Inc. | /s/ John Pak / Senior Vice President | |
| Stowers Institute for Medical Research | 4.3% | 1,345,761 | 1,307,975 | 0 | Stowers Institute for Medical Research | /s/ Joselyn Verschelden / Authorized Signer |
CIK / CUSIP context first