(CMTL)

Reporting relationship: Chief Legal Officer
Issuer ticker: CMTL
Reported as of: 28 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 29 Apr 2026, 16:44:49 UTC
Prior SEC filing: 12 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Michael C. Shay, Attorney-in-Fact for Donald E. Walther

Key filing fact

Donald E. Walther filed Form 4 for COMTECH TELECOMMUNICATIONS CORP /DE/ (CMTL) on 29 Apr 2026.

Key facts

This page summarizes Donald E. Walther's Form 4 filing for COMTECH TELECOMMUNICATIONS CORP /DE/ (CMTL).
6 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 29 Apr 2026, 16:44.

Change

Previous filing in this sequence was filed on 12 Nov 2025.
Current net transaction value: $0.

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 0001740119 Primary reporting owner

Walther Donald E.

Relationship: Chief Legal Officer
Address: 305 N 54TH STREET, CHANDLER
Signature: /s/ Michael C. Shay, Attorney-in-Fact for Donald E. Walther
Signature date: 29 Apr 2026

Reported non-derivative transactions

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

CMTL transaction

Common Stock Par Value $.10 Per Share

Options Exercise

Transaction value
Shares: +1,685
Change %: +4%
Price
Shares after: 44,131
Date: 28 Apr 2026
Ownership: Direct
Footnotes: F1

CMTL transaction

Common Stock Par Value $.10 Per Share

Tax liability

Transaction value
Shares: -576
Change %: -1.3%
Price: $3.52^*
Shares after: 43,555
Date: 28 Apr 2026
Ownership: Direct
Footnotes: F2

CMTL transaction

Common Stock Par Value $.10 Per Share

Options Exercise

Transaction value
Shares: +28,986
Change %: +67%
Price
Shares after: 72,541
Date: 28 Apr 2026
Ownership: Direct
Footnotes: F1

CMTL transaction

Common Stock Par Value $.10 Per Share

Tax liability

Transaction value
Shares: -9,899
Change %: -14%
Price: $3.52^*
Shares after: 62,642
Date: 28 Apr 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CMTL transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -1,685
Change %: -0.96%
Price: $0.000000^*
Shares after: 173,669
Date: 28 Apr 2026
Ownership: Direct
Underlying class: Common Stock Par Value $.10 Per Share
Underlying amount: 1,685
Exercise price
Footnotes: F1, F4

CMTL transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -28,986
Change %: -17%
Price: $0.000000^*
Shares after: 144,683
Date: 28 Apr 2026
Ownership: Direct
Underlying class: Common Stock Par Value $.10 Per Share
Underlying amount: 28,986
Exercise price
Footnotes: F1, F5

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Restricted stock units convert into common stock on a one-for-one basis.

Footnote F2

The 576 reflected on this table represents the shares withheld to pay the Reporting Person's federal, state, and Federal Insurance Contributions Act ("FICA") tax.

Footnote F3

The 9,899 reflected on this table represents the shares withheld to pay the Reporting Person's federal, state, and Federal Insurance Contributions Act ("FICA") tax.

Footnote F4

This transaction represents the vesting of 1,685 of the 5,055 restricted stock units issued to the Reporting Person on April 28, 2023.

Footnote F5

This transaction represents the vesting of 28,986 restricted stock units issued to the Reporting Person on April 28, 2023.