Joseph R. Nerges - 11 Sep 2026 Form 4 Insider Report for CSP INC /MA/ (CSPI)

Reporting relationship: 10%+ Owner
Issuer ticker: CSPI
Reported as of: 11 Sep 2026
Net transaction value: +$36,078
SEC form: 4
Accepted by SEC: 15 Sep 2026, 15:45:09 UTC
Prior SEC filing: 10 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Joseph R. Nerges

Key filing fact

Joseph R. Nerges filed Form 4 for CSP INC /MA/ (CSPI) on 15 Sep 2026.

Key facts

This page summarizes Joseph R. Nerges's Form 4 filing for CSP INC /MA/ (CSPI).
6 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 15 Sep 2026, 15:45.

Change

Previous filing in this sequence was filed on 10 Jun 2026.
Current net transaction value: +$36,078.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0000925974 Primary reporting owner

NERGES JOSEPH R

Relationship: 10%+ Owner
Address: 1726 BUNDY ST, SCRANTON
Signature: /s/ Joseph R. Nerges
Signature date: 15 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CSPI transaction

Common Stock

Purchase

Transaction value: $12,400
Shares: +1,600
Change %: +0.11%
Price: $7.75
Shares after: 1,420,500
Date: 11 Sep 2026
Ownership: Direct

CSPI transaction

Common Stock

Purchase

Transaction value: $7,850
Shares: +1,000
Change %: +0.07%
Price: $7.85
Shares after: 1,421,500
Date: 11 Sep 2026
Ownership: Direct

CSPI transaction

Common Stock

Purchase

Transaction value: $7,900
Shares: +1,000
Change %: +0.07%
Price: $7.90
Shares after: 1,422,500
Date: 11 Sep 2026
Ownership: Direct

CSPI transaction

Common Stock

Purchase

Transaction value: $3,950
Shares: +500
Change %: +0.04%
Price: $7.90
Shares after: 1,423,000
Date: 14 Sep 2026
Ownership: Direct

CSPI transaction

Common Stock

Purchase

Transaction value: $221
Shares: +28
Change %: +0%
Price: $7.90
Shares after: 1,423,028
Date: 15 Sep 2026
Ownership: Direct

CSPI transaction

Common Stock

Purchase

Transaction value: $3,757
Shares: +472
Change %: +0.03%
Price: $7.96
Shares after: 1,423,500
Date: 15 Sep 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

SEC remarks

Entered into confidentiality agreement with CSP Inc. on October 8, 2024.

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