Company profile
Csp Inc /ma/ Insider Trading
CSPIEvery SEC Form 4 insider trading filing for Csp Inc /ma/ (CSPI) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Services-Computer Integrated Systems Design
- CIK
- 0000356037
- Filings
- 70
- Insiders
- 11
- Last filing
- 2026-09-15
Activity summary
Recent insider activity is bullish. Over the last 30 days, 6 insiders purchased shares (net $36K). Buying was led by Joseph R Nerges.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Csp Inc /ma/ insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $441K.
90 day insight
Over the last 90 days, Csp Inc /ma/ insiders bought $38K across 7 transactions with no open-market sales.
- Most active insider: Joseph R Nerges with 6 transactions totaling $36K.
- Largest single purchase: $12K by Joseph R Nerges on Sep 11, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Joseph R Nerges | CSPI | Purchase | 472 | $7.96 | $4K |
| Sep 15, 2026 | Joseph R Nerges | CSPI | Purchase | 28 | $7.90 | $221 |
| Sep 14, 2026 | Joseph R Nerges | CSPI | Purchase | 500 | $7.90 | $4K |
| Sep 11, 2026 | Joseph R Nerges | CSPI | Purchase | 1,600 | $7.75 | $12K |
| Sep 11, 2026 | Joseph R Nerges | CSPI | Purchase | 1,000 | $7.90 | $8K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Csp Inc /ma/ as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →