Summary
Latest filing:
William P. Stiritz files SEC Form 4 reports at Post Holdings, Inc. (POST). 15 SEC Form 4 filings on record going back to 2024, most recently on 3 September 2026. Most recent open-market trade: sold $19K of POST on 3 September 2026. Lifetime open-market purchases: $24.32M. Lifetime open-market sales: $32.29M.
Recent Transactions
6Every recent SEC Form 4 transaction William P. Stiritz has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William P. Stiritz files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Gregory L. Curl - $1.45M of POST open-market activity in the last 12 months
- Nicolas Catoggio - $1.00M of POST open-market activity in the last 12 months
- David W. Kemper - $176K of POST open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William P. Stiritz?
William P. Stiritz is a corporate insider of Post Holdings, Inc. (POST). InsiderAlpha holds 15 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William P. Stiritz submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has William P. Stiritz been buying or selling stock?
Recorded transactions: 2 open-market purchases ($24.32M) and 4 open-market sales ($32.29M) across all tracked filings.
Where can I see all of William P. Stiritz's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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