Summary
Updated Aug 31, 2026
David W. Kemper is Director of Post Holdings, Inc. (POST). 30 SEC Form 4 filings on record going back to 2024, most recently on 4 August 2026. Most recent open-market trade: sold $149K of CBSH on 3 February 2026. Lifetime open-market purchases: $176K. Lifetime open-market sales: $2.31M.
Recent Transactions
17Every recent SEC Form 4 transaction David W. Kemper has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David W. Kemper go back to 2024: 30 primary Form 4 filings, an average of 10.0 per year. The typical open-market purchase is $176K (1 buy totaling $176K). The largest single buy on record is $176K of POST in 2025. Sales side: 5 recorded sales totaling $2.31M, so the filing history runs sell-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies David W. Kemper 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.
- John W. Kemper - $1.62M of CBSH open-market activity in the last 12 months
- Gregory L. Curl - $1.45M of POST open-market activity in the last 12 months
- Charles G. Kim - $1.17M of CBSH open-market activity in the last 12 months
- Nicolas Catoggio - $1.00M of POST open-market activity in the last 12 months
- Kevin G. Barth - $411K of CBSH open-market activity in the last 12 months
- Robert S. Holmes - $301K of CBSH 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 David W. Kemper?
David W. Kemper is a corporate insider, tracked as Director of Post Holdings, Inc. (POST). InsiderAlpha holds 30 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 David W. Kemper submitted recently?
4 primary Form 4 filings in the last 90 days, covering 2 companies.
Has David W. Kemper been buying or selling stock?
Recorded transactions: 1 open-market purchase ($176K) and 5 open-market sales ($2.31M) across all tracked filings.
Where can I see all of David W. Kemper'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.
Learn More
Follow David W. Kemper and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial