Comtech legal chief receives 15,946 vested shares

Q: How many CMTL shares did Donald E. Walther receive from his RSUs?

Donald E. Walther vested 15,946 restricted stock units on September 30, 2026, converting them one-for-one into common shares.

Q: How many CMTL shares were withheld for taxes from Donald E. Walther's RSU vesting?

5,446 common shares were withheld at $1.37 per share to pay federal, state and Federal Insurance Contributions Act (FICA) tax.

The vested units came from 47,838 restricted stock units issued to Donald E. Walther on September 30, 2024.

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Rhea-AI Filing Summary

Comtech Telecommunications Corp. (CMTL) Chief Legal Officer Donald E. Walther vested 15,946 restricted stock units on September 30, 2026, converting them one-for-one into common shares. 5,446 shares were withheld at $1.37 per share to pay federal, state and FICA taxes. His reported restricted-stock-unit position after the transaction was 122,854 units.

Insider Trade Summary

15,946 shares exercised/converted

Exercise 3 txns

Insider Walther Donald E.

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units ^{F1, F3}	15,946	$0.00	$0.00
Exercise	Common Stock Par Value $.10 Per Share ^F1	15,946	--	--
Tax Withholding	Common Stock Par Value $.10 Per Share ^F2	5,446	$1.37	$7K

Holdings After Transaction: Restricted Stock Units — 122,854 contracts (Direct); Common Stock Par Value $.10 Per Share — 77,015 shares (Direct)

Footnotes (3)

F1. Restricted stock units convert into common stock on a one-for-one basis.
F2. The 5,446 reflected on this table represents the shares withheld to pay the Reporting Person's federal, state, and Federal Insurance Contributions Act ("FICA") tax.
F3. This transaction represents the vesting of 15,946 of the 47,838 restricted stock units issued to the Reporting Person on September 30, 2024.

Key Figures

Restricted stock units vested: 15,946 units Shares withheld for taxes: 5,446 shares Price per withheld share: $1.37 per share +2 more

5 metrics

Restricted stock units vested 15,946 units September 30, 2026; converted one-for-one into common shares

Shares withheld for taxes 5,446 shares September 30, 2026

Price per withheld share $1.37 per share Shares withheld to pay federal, state and FICA tax

Restricted stock units following transaction 122,854 units Reported after the September 30, 2026 transaction

Restricted stock units issued 47,838 units Issued September 30, 2024

Key Terms

Restricted Stock Units, vesting, one-for-one basis, Federal Insurance Contributions Act

4 terms

Restricted Stock Units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

vesting financial

"This transaction represents the vesting of 15,946"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

one-for-one basis financial

"convert into common stock on a one-for-one basis"

Federal Insurance Contributions Act regulatory

"federal, state, and Federal Insurance Contributions Act ("FICA") tax"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CMTL shares did Donald E. Walther receive from his RSUs?

Donald E. Walther vested 15,946 restricted stock units on September 30, 2026, converting them one-for-one into common shares.

How many CMTL shares were withheld for taxes from Donald E. Walther's RSU vesting?

5,446 common shares were withheld at $1.37 per share to pay federal, state and Federal Insurance Contributions Act (FICA) tax.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/01/2026 - 05:00 PM Accepted by SEC EDGAR 10/01/2026 - 05:00 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Walther Donald E.

(Last)

(First)

(Middle)

305 N 54TH STREET

(Street)

CHANDLER

ARIZONA

85226

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
COMTECH TELECOMMUNICATIONS CORP /DE/ [ CMTL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Par Value $.10 Per Share	09/30/2026		M		15,946	A	⁽¹⁾	82,461	D
Common Stock Par Value $.10 Per Share	09/30/2026		F⁽²⁾		5,446	D	$1.37	77,015	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	09/30/2026		M			15,946	⁽³⁾	⁽³⁾	Common Stock Par Value $.10 Per Share	15,946	$0	122,854	D

Explanation of Responses:

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

2. The 5,446 reflected on this table represents the shares withheld to pay the Reporting Person's federal, state, and Federal Insurance Contributions Act ("FICA") tax.

3. This transaction represents the vesting of 15,946 of the 47,838 restricted stock units issued to the Reporting Person on September 30, 2024.

Remarks:

	/s/ Michael C. Shay, Attorney-in-Fact for Donald E. Walther	10/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR