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  4. [Form 4] Guerrilla RF, Inc. Insider Trading Activity

[Form 4] Guerrilla RF, Inc. Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Guerrilla RF, Inc. (GUER) reported an insider equity update for its Chief Operating Officer on a Form 4. Following the reported transactions, the officer directly owns 19,380 shares of common stock. In derivative securities, the officer holds 25,000 stock options granted on 11/17/2025 at an exercise price of $3.05 per share, expiring on 11/17/2035. Each restricted stock unit (RSU) represents one share of common stock, including 4,167 RSUs that vest on 1/1/2026 and 11,793 RSUs that vest in two tranches on 1/1/2026 and 1/1/2027, all subject to continued service. The filing also notes fully vested stock options covering 24,590 and 1,774 underlying common shares with expirations in 2029 and 2030.

Positive

  • None.

Negative

  • None.
Insider Mason Mark Alan
Role Chief Operating Officer
Type Security Shares Price Value
Grant/Award Stock Option 25,000 $0.00 $0.00
holding Restricted Stock Unit -- -- --
holding Stock Option -- -- --
holding Stock Option -- -- --
holding Restricted Stock Unit -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Stock Option — 51,364 shares (Direct); Restricted Stock Unit — 15,960 shares (Direct); Common Stock — 19,380 shares (Direct)
Footnotes (6)
  1. F1. Each restricted stock unit represents the contingent right to receive one share of common stock upon vesting of the unit.
  2. F2. The restricted stock units vest on 1/1/2026, subject to the Reporting Person's continued service through the applicable vesting date.
  3. F3. The shares subject to the option are fully vested and exercisable.
  4. F4. No expiration date.
  5. 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
  6. 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.

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Form 4 Insider Transactions: What Each Field Means →
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*
Mason Mark Alan
(Last) (First) (Middle)
682 INVERNESS DRIVE
(Street)
WINSTON-SALEM NC 27107
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Guerrilla RF, Inc. [ GUER ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Operating Officer
3. Date of Earliest Transaction (Month/Day/Year)
11/17/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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)
Code V Amount (A) or (D) Price
Common Stock 19,380 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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Unit (1) (2) (4) Common Stock 4,167 4,167 D
Stock Option $2.2 (3) 09/11/2029 Common Stock 24,590 24,618 D
Stock Option $3.19 (3) 10/30/2030 Common Stock 1,774 1,773 D
Restricted Stock Unit (1) (5) (4) Common Stock 11,793 11,793 D
Stock Option $3.05 11/17/2025 A 25,000 (6) 11/17/2035 Common Stock 25,000 $0 25,000 D
Explanation of Responses:
1. Each restricted stock unit represents the contingent right to receive one share of common stock upon vesting of the unit.
2. The restricted stock units vest on 1/1/2026, subject to the Reporting Person's continued service through the applicable vesting date.
3. The shares subject to the option are fully vested and exercisable.
4. No expiration date.
5. 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
6. 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.
/s/ Iain MacSween, Attorney-in-Fact 11/18/2025
** 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.

Source: View Original Filing on SEC EDGAR