CSPI
insider transactionsCSP INC /MA/ — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
+3.4K
3.4K buy · 0 sell
Net value · 30d
$28.9K
$28.9K in · $0 out
Sentiment · 30d
Net buying
100% buying · 0% selling
Open-market trades · 30d
7
3.4K buy · 0 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Buy·P
10% Owner
$832
100 sh · $8.32
Own +0%
-
Buy·P
10% Owner
$589
71 sh · $8.30
Own +0%
-
Buy·P
10% Owner
$1.6K
199 sh · $8.05
Own +0%
-
Buy·P
10% Owner
$6.1K
700 sh · $8.69
Own +0%
-
Buy·P
10% Owner
$6.7K
800 sh · $8.40
Own +0%
-
Buy·P
10% Owner
$4.3K
500 sh · $8.60
Own +0%
-
Buy·P
10% Owner
$8.8K
1.0K sh · $8.75
Own +0%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 10, 2026 | Joseph R Nerges | Buy P | 100 | $832 |
| Jun 10, 2026 | Joseph R Nerges | Buy P | 71 | $589 |
| Jun 9, 2026 | Joseph R Nerges | Buy P | 199 | $1.6K |
| Jun 9, 2026 | Joseph R Nerges | Buy P | 700 | $6.1K |
| Jun 8, 2026 | Joseph R Nerges | Buy P | 800 | $6.7K |
| Jun 8, 2026 | Joseph R Nerges | Buy P | 500 | $4.3K |
| Jun 8, 2026 | Joseph R Nerges | Buy P | 1.0K | $8.8K |
About CSPI insider trading
This page tracks insider transactions for CSP INC /MA/ (CSPI) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.