Summary
Updated Aug 31, 2026
John P. Hamill is SrVP/CFO/Prin Fin & Acct Ofcr of Aprea Therapeutics, Inc. (APRE). 5 SEC Form 4 filings on record going back to 2024, most recently on 1 April 2026. Most recent open-market trade: bought $5K of APRE on 2 February 2026. Lifetime open-market purchases: $31K. Historical track record: 5/5 stars across 4 tracked purchases.
Recent Transactions
4Every recent SEC Form 4 transaction John P. Hamill has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★★★ (5/5) |
| Total purchases tracked | 4 |
| Purchases with forward-return data | 4 |
| 30-day win rate | 100% |
| 90-day win rate | 100% |
| Avg 5-day return | +7.63% |
| Avg 30-day return | +22.50% |
| Avg 90-day return | +25.88% |
| Best 30-day return | +38.58% |
Trading Pattern
InsiderAlpha's records for John P. Hamill go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. The typical open-market purchase is $5K (6 buys totaling $31K). The largest single buy on record is $25K of APRE in 2026. 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 John P. Hamill 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.
- Richard Peters - $100K of APRE open-market activity in the last 12 months
- Oren Gilad - $25K of APRE 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 John P. Hamill?
John P. Hamill is a corporate insider, tracked as SrVP/CFO/Prin Fin & Acct Ofcr of Aprea Therapeutics, Inc. (APRE). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did John P. Hamill last file a Form 4?
The most recent primary Form 4 on record is dated 1 April 2026, one of 5 filings going back to 2024.
Has John P. Hamill been buying or selling stock?
Recorded transactions: 6 open-market purchases ($31K) and 0 open-market sales across all tracked filings.
How accurate is John P. Hamill's historical track record?
Across 4 tracked purchases, John P. Hamill averaged +22.5% avg 30-day return with a 100% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
Where can I see all of John P. Hamill'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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