Schedule 13D ownership disclosure
WASHINGTON POST CO
Class B Common Stock $1.00 par value · CUSIP: 939640108
Event date: 2026-10-29
- Filing-level shares
- 434,689.00
- Percent of class
- 12.00%
- Laura G. O'ShaughnessyReported CIK 0001813477
Shares: 434,689.00 · Class: 12.00%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0000950157-26-001154
- Form type
- SCHEDULE 13D/A
- Filer
- O'Shaughnessy Laura
- CIK
- CIK 1813477
- Filed
- Nov 02, 2026
- Reporting period
- Oct 29, 2026
- Description
- Schedule 13D beneficial ownership