Mark Alan Mason - Nov 17, 2025 Form 4 Insider Report for Guerrilla RF, Inc. (GUER)

Role
Chief Operating Officer
Signature
/s/ Iain MacSween, Attorney-in-Fact
Stock symbol
GUER
Transactions as of
Nov 17, 2025
Transactions value $
$0
Form type
4
Date filed
11/18/2025, 09:31 PM
Previous filing
Feb 1, 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Mason Mark Alan Chief Operating Officer 682 INVERNESS DRIVE, WINSTON-SALEM /s/ Iain MacSween, Attorney-in-Fact 2025-11-18 0001892393

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding GUER Common Stock 19.4K Nov 17, 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GUER Stock Option Award $0 +25K $0.00 25K Nov 17, 2025 Common Stock 25K $3.05 Direct F6
holding GUER Restricted Stock Unit 4.17K Nov 17, 2025 Common Stock 4.17K Direct F1, F2, F4
holding GUER Stock Option 24.6K Nov 17, 2025 Common Stock 24.6K $2.20 Direct F3
holding GUER Stock Option 1.77K Nov 17, 2025 Common Stock 1.77K $3.19 Direct F3
holding GUER Restricted Stock Unit 11.8K Nov 17, 2025 Common Stock 11.8K Direct F1, F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents the contingent right to receive one share of common stock upon vesting of the unit.
F2 The restricted stock units vest on 1/1/2026, subject to the Reporting Person's continued service through the applicable vesting date.
F3 The shares subject to the option are fully vested and exercisable.
F4 No expiration date.
F5 The restricted stock units vest as follows: (i) 5,896 units on 1/1/2026; and (ii) 5,897 units on 1/1/2027, in each case subject to the Reporting Person's continued service through the applicable vesting date
F6 The options vest as follows: (i) 6,250 options on 5/21/2026; (ii) 520 options on 6/21/26, and monthly thereafter through 4/21/29; and (iii) 550 options on 5/21/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date.