AMERICAN CENTURY INVESTMENT MANAGEMENT INC - 30 Jun 2025 SCHEDULE 13G/A Report for Northwestern Energy Group, Inc. Common Stock (NWE)

Key filing fact

AMERICAN CENTURY INVESTMENT MANAGEMENT INC disclosed 4.8% ownership in Northwestern Energy Group, Inc. Common Stock (NWE) on 30 Jun 2025.

Key facts

AMERICAN CENTURY INVESTMENT MANAGEMENT INC filed SCHEDULE 13G/A for Northwestern Energy Group, Inc. Common Stock (NWE).
Disclosed ownership: 4.8%.
Date of event: 30 Jun 2025.

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.

Backed by Schedule 13D/13G

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

Reporting persons

Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares Owned	sole voting power	Signature	Title
American Century Investment Management, Inc.	4.8%	2,952,214	2,838,388	American Century Investment Management, Inc.	/s/ John Pak / Senior Vice President
American Century Companies, Inc.	4.8%	2,952,214	2,838,388	American Century Companies, Inc.	/s/ John Pak / Senior Vice President
Stowers Institute for Medical Research	4.8%	2,952,214	2,838,388	Stowers Institute for Medical Research	/s/ Joselyn Verschelden / Authorized Signer

CIK / CUSIP context first

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