Walther Donald E. 4

4 · COMTECH TELECOMMUNICATIONS CORP /DE/ · Filed Apr 29, 2026

AI-generated summary of this filing

Updated Apr 29, 2026

Comtech (CMTL) Chief Legal Officer Walther Receives RSU Vesting

What Happened

Donald E. Walther, Chief Legal Officer of Comtech Telecommunications Corp. (CMTL), had restricted stock units (RSUs) vest on April 28, 2026. A total of 30,671 RSUs converted into common shares (1,685 + 28,986). To cover tax obligations, 10,475 shares were withheld (576 and 9,899), leaving a net delivery of approximately 20,196 shares to Mr. Walther. The withheld shares were valued at $3.52 per share, totaling $2,028 and $34,844 (combined $36,872).

Key Details

Transaction date: April 28, 2026; Form 4 filed April 29, 2026 (timely).
What occurred: RSU vesting (reported as conversion/exercise of derivative, code M) and tax-withholding (code F).
Shares vested: 30,671 total (1,685 + 28,986).
Shares withheld for taxes: 10,475 total (576 + 9,899) at $3.52/share; total withheld value $36,872.
Net shares delivered to insider: ~20,196 shares.
Footnotes: F1–F5 confirm 1:1 RSU-to-share conversion, the withheld shares covered federal/state/FICA taxes, and items F4/F5 identify the specific RSU grants (issued April 28, 2023).
Filing timeliness: Reported the next day — no late filing flag in the provided data.

Context

This is routine RSU vesting and tax withholding, not an open-market sale or purchase. The “M” entries reflect conversion of RSUs into common stock (no cash exercise price), and the “F” entries reflect shares withheld to satisfy tax liabilities. Such transactions commonly reflect compensation vesting rather than an insider signaling a view on the stock.

Form 4

Period: 2026-04-28

Chief Legal Officer

Transactions

Exercise/Conversion
Common Stock Par Value $.10 Per Share
[F1]
2026-04-28+1,685→ 44,131 total
Tax Payment
Common Stock Par Value $.10 Per Share
[F2]
2026-04-28$3.52/sh−576$2,028→ 43,555 total
Exercise/Conversion
Common Stock Par Value $.10 Per Share
[F1]
2026-04-28+28,986→ 72,541 total
Tax Payment
Common Stock Par Value $.10 Per Share
[F3]
2026-04-28$3.52/sh−9,899$34,844→ 62,642 total
Exercise/Conversion
Restricted Stock Units
[F1][F4]
2026-04-28−1,685→ 173,669 total
→ Common Stock Par Value $.10 Per Share (1,685 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F5]
2026-04-28−28,986→ 144,683 total
→ Common Stock Par Value $.10 Per Share (28,986 underlying)

Footnotes (5)

[F1]Restricted stock units convert into common stock on a one-for-one basis.
[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.
[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.
[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.
[F5]This transaction represents the vesting of 28,986 restricted stock units issued to the Reporting Person on April 28, 2023.

Signature

/s/ Michael C. Shay, Attorney-in-Fact for Donald E. Walther|2026-04-29

1 file