CSPINasdaq

CSP INC /MA/

Alert me on CSPI

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Sep 15 Buy NERGES JOSEPH R Insider

1 week

−1.4%S&P +2.4%

1 month

−3.9%S&P +1.9%

3 months

Result in29 trading days

6 months

Result in92 trading days

Jun 10 Buy NERGES JOSEPH R Insider

1 week

−0.3%S&P +2.1%

1 month

−3.7%S&P +3.5%

3 months

−9.4%S&P +4.7%

6 months

Result in26 trading days

May 18 Buy FOLGER ANTHONY Insider

1 week

+3.5%S&P +1.6%

1 month

−9.0%S&P +0.3%

3 months

−22.5%S&P +4.2%

6 months

Result in10 trading days

May 15 Buy Azeri Ismail Insider

1 week

+5.5%S&P +0.9%

1 month

+0.7%S&P +1.5%

3 months

−14.8%S&P +4.8%

6 months

Result in9 trading days

May 13 Buy NERGES JOSEPH R Insider

1 week

+1.5%S&P −0.1%

1 month

+0.1%S&P −0.1%

3 months

−9.6%S&P +5.1%

6 months

Result in7 trading days

Show all 10

May 13 Buy Webber Stephen J. Insider

1 week

+1.5%S&P −0.1%

1 month

+0.1%S&P −0.1%

3 months

−9.6%S&P +5.1%

6 months

Result in7 trading days

Mar 13 Buy NERGES JOSEPH R Insider

1 week

−7.5%S&P −1.8%

1 month

0.0%S&P +5.1%

3 months

+4.0%S&P +12.3%

6 months

−10.6%S&P +15.5%

Feb 27 Buy NERGES JOSEPH R Insider

1 week

−3.3%S&P −2.0%

1 month

−10.2%S&P −7.6%

3 months

+10.1%S&P +10.6%

6 months

−9.0%S&P +12.7%

Feb 19 Buy NERGES JOSEPH R Insider

1 week

−4.0%S&P +0.7%

1 month

−14.1%S&P −5.0%

3 months

−2.1%S&P +8.6%

6 months

−22.5%S&P +12.0%

Sep 16, 2025 Buy NERGES JOSEPH R Insider

1 week

+9.6%S&P +0.8%

1 month

+1.8%S&P +1.1%

3 months

+29.5%S&P +3.4%

6 months

−27.6%S&P +0.8%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for CSPI

18 held · newest 518 held · newest 2

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See all 18 filings for CSPI

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

No lobbying reports on file.