What warrant position related to Guerrilla RF (GUER) does Susan Berish Barkal report?

She reports a warrant tied to 3,334 underlying Guerrilla RF common shares with a $12.00 exercise price. This warrant expires on August 28, 2028, and remains part of her derivative holdings alongside the newly granted stock option award.

Does this Guerrilla RF (GUER) Form 4 show any insider share sales or purchases?

The Form 4 does not report any open-market purchases or sales of Guerrilla RF shares. It mainly records existing holdings and a new stock option grant classified as a grant, award, or other acquisition, rather than a discretionary market trade.

Guerrilla RF director granted 15,625 stock options

Guerrilla RF, Inc. director Susan Berish Barkal reported her current equity position and a new stock option grant.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

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How Sentiment works How the balance works

Form Type

Rhea-AI Filing Summary

Guerrilla RF, Inc. director Susan Berish Barkal reported her current equity position and a new stock option grant. She received a stock option covering 15,625 shares of Common Stock at an exercise price of $3.05 per share, expiring on May 15, 2036.

After this grant, she directly holds 37,245 shares of Common Stock and a warrant linked to 3,334 underlying Common Stock shares with a $12.00 exercise price, expiring on August 28, 2028. The filing does not show any open‑market buys or sells, only holdings and this compensation-related option award.

Insider Trade Summary

Grant/Award: 15,625 shares

Grant/Award 3 txns

Insider Barkal Susan Berish

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option	15,625	$0.00	$0.00
holding	Warrant	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Stock Option — 15,625 contracts (Direct); Warrant — 3,334 contracts (Direct); Common Stock — 37,245 shares (Direct)

Key Figures

Common stock held: 37,245 shares New stock option grant: 15,625 shares Stock option exercise price: $3.05 per share +3 more

6 metrics

Common stock held 37,245 shares Direct ownership after reported transactions

New stock option grant 15,625 shares Option to acquire common stock granted on May 15, 2026

Stock option exercise price $3.05 per share Exercise price for 15,625-share option expiring May 15, 2036

Stock option expiration May 15, 2036 Expiry date of 15,625-share option award

Warrant underlying shares 3,334 shares Underlying Guerrilla RF common stock for existing warrant

Warrant exercise price $12.00 per share Exercise price on warrant expiring August 28, 2028

Key Terms

Stock Option, Warrant, underlying security title, derivative

4 terms

Stock Option financial

"security_title: "Stock Option""

A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.

Warrant financial

"security_title: "Warrant""

A warrant is a time-limited financial contract that gives its holder the right to buy a company's shares at a set price before a specified date, like a coupon that lets you purchase stock at a fixed discount for a limited time. It matters to investors because warrants offer leveraged exposure to a stock’s upside and can dilute existing shareholders if exercised, so they affect potential gains and the company’s outstanding share count.

underlying security title financial

"underlying_security_title: "Common Stock""

derivative financial

"transaction_type: "derivative""

A derivative is a financial contract whose value depends on the price or performance of another asset or measure — for example a stock, index, interest rate, commodity, or currency. Investors use derivatives like insurance or leveraged bets to hedge risk, speculate, or gain exposure without owning the underlying asset; they can protect portfolios but also amplify losses and introduce counterparty and market risk.

FAQ

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

What insider transaction did Guerrilla RF (GUER) report for Susan Berish Barkal?

Guerrilla RF reported that director Susan Berish Barkal received a stock option grant for 15,625 shares. The option has an exercise price of $3.05 per share and represents a compensation-related award rather than an open-market stock purchase or sale.

How many Guerrilla RF (GUER) shares does Susan Berish Barkal hold after this Form 4?

After the reported transactions, Susan Berish Barkal directly holds 37,245 shares of Guerrilla RF common stock. This figure reflects her direct ownership position as disclosed in the Form 4 and provides context for the scale of the new option grant.

What are the key terms of Susan Berish Barkal’s new Guerrilla RF stock option?

The new stock option gives Susan Berish Barkal the right to acquire 15,625 Guerrilla RF common shares at $3.05 per share. The option becomes exercisable from May 15, 2026, and will expire on May 15, 2036, if not exercised before that date.

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

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Accepted by SEC EDGAR 05/19/2026 - 10:59 AM EDT

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^*

Barkal Susan Berish

(Last)

(First)

(Middle)

47 ROLLESTON DRIVE

(Street)

GREENVILLE

SOUTH CAROLINA

29615

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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								37,245	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)
Warrant	$12							08/28/2023	08/28/2028	Common Stock	3,334		3,334	D
Stock Option	$3.05	05/15/2026		A		15,625		05/15/2026	05/15/2036	Common Stock	15,625	$0	15,625	D

Explanation of Responses:

	/s/ Iain MacSween, Attorney-in-Fact	05/19/2026
	** 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