Summary
Updated Aug 31, 2026
Joseph R. Nerges files SEC Form 4 reports at CSP INC /MA/ (CSPI). 6 SEC Form 4 filings on record going back to 2025, most recently on 10 June 2026. Most recent open-market trade: bought $832 of CSPI on 10 June 2026. Lifetime open-market purchases: $239K. Historical track record: 2/5 stars across 35 tracked purchases.
Recent Transactions
20Every recent SEC Form 4 transaction Joseph R. Nerges 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 | ★★☆☆☆ (2/5) |
| Total purchases tracked | 35 |
| Purchases with forward-return data | 35 |
| 30-day win rate | 20% |
| 90-day win rate | 60% |
| Avg 5-day return | +0.25% |
| Avg 30-day return | -5.84% |
| Avg 90-day return | +2.57% |
| Best 30-day return | +4.26% |
Trading Pattern
InsiderAlpha's records for Joseph R. Nerges go back to 2025: 6 primary Form 4 filings, an average of 3.0 per year. The typical open-market purchase is $6K (42 buys totaling $239K). The largest single buy on record is $17K of CSPI 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 Joseph R. Nerges 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.
- Stephen J. Webber - $24K of CSPI open-market activity in the last 12 months
- Ismail Azeri - $23K of CSPI open-market activity in the last 12 months
- Anthony Folger - $23K of CSPI 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 Joseph R. Nerges?
Joseph R. Nerges is a corporate insider of CSP INC /MA/ (CSPI). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Joseph R. Nerges submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Joseph R. Nerges been buying or selling stock?
Recorded transactions: 42 open-market purchases ($239K) and 0 open-market sales across all tracked filings.
How accurate is Joseph R. Nerges's historical track record?
Across 35 tracked purchases, Joseph R. Nerges averaged -5.8% avg 30-day return with a 20% 30-day win rate. InsiderAlpha rates the track record at 2/5 stars.
Where can I see all of Joseph R. Nerges'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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