William P. Stiritz

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

3

Stocks Covered

1

Latest Filing

Mar 5, 2026

Filings

POST

Post Holdings, Inc.

SC 13D/A · Mar 5, 2026

10.3%

4.9M shares

POST

Post Holdings, Inc.

SC 13D/A · Oct 15, 2025

9.3%

4.9M shares

POST

Post Holdings, Inc.

SC 13D/A · Feb 14, 2025

8.3%

4.7M shares