Schedule 13G ownership disclosure
Kaiser Aluminum Corp
Common Stock · CUSIP: 483007704
Event date: 2026-09-30
- Filing-level shares
- 1,556,558
- Percent of class
- 9.52%
- Vanguard Portfolio Management
Shares: 1,556,558 · Class: 9.52%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0002100121-26-001117
- Form type
- SCHEDULE 13G/A
- Filer
- VANGUARD PORTFOLIO MANAGEMENT LLC
- CIK
- CIK 2100121
- Filed
- Oct 30, 2026
- Reporting period
- Sep 30, 2026
- Description
- Schedule 13G beneficial ownership