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

Guerrilla RF, Inc.’s Chief Financial Officer Michael John-Williams reported buying 2,000 shares of common stock in an open-market purchase at $2.8200 per share, increasing his direct common stock holdings to 9,870 shares.

Rhea-AI Filing Summary

Guerrilla RF, Inc.’s Chief Financial Officer Michael John-Williams reported buying 2,000 shares of common stock in an open-market purchase at $2.8200 per share, increasing his direct common stock holdings to 9,870 shares.

He also holds 16,395 restricted stock units, each representing a right to receive one share of common stock upon vesting on a specified schedule through 2029, and 46,534 stock options granted at a $3.0500 exercise price, which vest over time with 15,509 options already vested.

Insider Trade Summary

Net Buyer: 2,000 shares

Net Buy 3 txns

Insider John-Williams Michael

Role Chief Financial Officer

Bought 2,000 shs ($6K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,000	$2.82	$6K
holding	Restricted Stock Unit	--	--	--
Grant/Award	Stock Option	46,534	$0.00	$0.00

Holdings After Transaction: Stock Option — 46,534 contracts (Direct); Common Stock — 9,870 shares (Direct); Restricted Stock Unit — 16,395 contracts (Direct)

Footnotes (4)

1. F1. Each restricted stock unit represents a contingent right to receive one share of common stock upon vesting of the unit.
2. F2. The restricted stock units vest as follows:(i) 512 units on 6/8/2026, and monthly thereafter through 12/8/2028; and (ii) 523 units on 1/8/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date.
3. F3. No expiration date.
4. F4. 15,509 of the shares subject to the option have vested, and the remaining shares vest as follows:(i) 969 options on 6/8/2026, and monthly thereafter through 12/8/2028; and (ii) 986 options on 1/8/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date.

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Accepted by SEC EDGAR 05/15/2026 - 05:21 PM EDT Learn about SEC filing dates

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^*

John-Williams Michael

(Last) (First) (Middle)

2000 PISGAH CHURCH RD

(Street)

GREENSBORO NORTH CAROLINA 27455

(City) (State) (Zip)

UNITED STATES

(Country)

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 Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/13/2026		P		2,000	A	$2.82	9,870	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)	(3)	Common Stock	16,395		16,395	D
Stock Option	$3.05	11/17/2025		A		46,534		(4)	11/17/2035	Common Stock	46,534	$0	46,534	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of common stock upon vesting of the unit.

2. The restricted stock units vest as follows:(i) 512 units on 6/8/2026, and monthly thereafter through 12/8/2028; and (ii) 523 units on 1/8/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date.

3. No expiration date.

4. 15,509 of the shares subject to the option have vested, and the remaining shares vest as follows:(i) 969 options on 6/8/2026, and monthly thereafter through 12/8/2028; and (ii) 986 options on 1/8/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date.

	/s/ Mike John-Williams	05/15/2026
	** 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)