STOCK TITAN

Guerrilla RF (GUER) director Dunn exercises options, now holds 50,791 shares

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

Rhea-AI Filing Summary

Guerrilla RF director James E. Dunn, Jr. reported exercising stock options to acquire a total of 6,155 shares of Guerrilla RF common stock on June 11, 2026. The exercises converted options at strike prices of $2.20, $1.93, and $1.42 per share into common shares.

After these transactions, he directly owns 50,791 shares of common stock. He also has indirect holdings of 5,002 common shares and 834 warrants held by the James E. Dunn, Jr. Restated 1985 Revocable Trust for his benefit.

Following the exercises, Dunn still holds unexercised equity awards, including stock options over 15,625 shares at an exercise price of $3.05 and options over 2,464 shares at $3.19, as well as 834 warrant-underlying shares at an exercise price of $12.00.

Positive

  • None.

Negative

  • None.
Insider Dunn James E. Jr.
Role null
Type Security Shares Price Value
Exercise Stock Option 2,462 $0.00 --
Exercise Stock Option 2,464 $0.00 --
Exercise Stock Option 1,229 $0.00 --
Exercise Common Stock 2,462 $1.42 $3K
Exercise Common Stock 2,464 $1.93 $5K
Exercise Common Stock 1,229 $2.20 $3K
holding Stock Option -- -- --
holding Warrant -- -- --
holding Stock Option -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Stock Option — 0 shares (Direct, null); Common Stock — 50,791 shares (Direct, null); Warrant — 834 shares (Indirect, By Trust.); Common Stock — 5,002 shares (Indirect, By Trust)
Footnotes (1)
  1. Shares and warrants held of record by the James E. Dunn, Jr. Restated 1985 Revocable Trust, for the benefit of Reporting Person. The shares subject to the option are fully vested and exercisable. Pursuant to the exercise of stock options.
Options exercised 6,155 shares Total Guerrilla RF common shares from option exercises on June 11, 2026
Direct common shares after transactions 50,791 shares Direct Guerrilla RF common stock owned following reported exercises
Trust common share holdings 5,002 shares Common shares held indirectly by James E. Dunn, Jr. Restated 1985 Revocable Trust
Trust warrants underlying shares 834 shares Shares underlying warrants held indirectly by trust at $12.00 exercise price
Option strike price 1 $2.20 per share Exercise price for 1,229 options converted into Guerrilla RF common stock
Option strike price 2 $1.93 per share Exercise price for 2,464 options converted into Guerrilla RF common stock
Option strike price 3 $1.42 per share Exercise price for 2,462 options converted into Guerrilla RF common stock
Remaining option position 15,625 shares at $3.05 Unexercised stock options over Guerrilla RF common shares, direct holding
Stock Option financial
"security_title: "Stock Option" and underlying_security_title: "Common Stock""
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" with underlying_security_title: "Common Stock""
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.
derivative security financial
"transaction_code_description: "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
exercise price financial
"conversion_or_exercise_price fields such as "3.0500" and "12.0000""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
Revocable Trust financial
"Restated 1985 Revocable Trust, for the benefit of Reporting Person"
A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.
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SEC Form 4
FORM 4UNITED 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*
Dunn James E. Jr.

(Last)(First)(Middle)
300 N. GREENE STREET
SUITE 2195

(Street)
GREENSBORO NORTH CAROLINA 27401

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock(3)06/11/2026M2,462A$1.4250,791D
Common Stock(3)06/11/2026M2,464A$1.9353,255D
Common Stock(3)06/11/2026M1,229A$2.254,484D
Common Stock5,002IBy Trust(1)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option(3)$1.4206/11/2026M2,462 (2)10/26/2026Common Stock2,462$00D
Stock Option(3)$1.9306/11/2026M2,464 (2)09/25/2028Common Stock2,464$00D
Stock Option(3)$2.206/11/2026M1,229 (2)09/11/2029Common Stock1,229$00D
Stock Option$3.19 (2)10/30/2030Common Stock2,4642,464D
Warrant$1208/28/202308/28/2028Common Stock834834IBy Trust.(1)
Stock Option$3.0505/15/202605/15/2036Common Stock15,62515,625D
Explanation of Responses:
1. Shares and warrants held of record by the James E. Dunn, Jr. Restated 1985 Revocable Trust, for the benefit of Reporting Person.
2. The shares subject to the option are fully vested and exercisable.
3. Pursuant to the exercise of stock options.
/s/ Charnice Suggs, Attorney-in-Fact06/15/2026
** Signature of Reporting PersonDate
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)

FAQ

What did Guerrilla RF (GUER) director James E. Dunn, Jr. report in this Form 4?

He reported exercising stock options to acquire 6,155 Guerrilla RF common shares. These exercises increased his direct share ownership while converting existing option awards into stock, without any reported open-market purchases or sales in this filing.

How many Guerrilla RF shares does James E. Dunn, Jr. own after the reported transactions?

After the reported option exercises, he directly owns 50,791 Guerrilla RF common shares. In addition, a trust for his benefit holds 5,002 common shares and 834 warrants, which are reported as indirect holdings through the revocable trust structure.

What stock options did James E. Dunn, Jr. exercise in the latest Guerrilla RF Form 4?

He exercised options covering 1,229 shares at $2.20, 2,464 shares at $1.93, and 2,462 shares at $1.42. These option exercises converted derivative awards into common stock as part of his existing equity compensation from Guerrilla RF.

Does James E. Dunn, Jr. still hold Guerrilla RF stock options or warrants after these exercises?

Yes. He retains options over 15,625 shares at a $3.05 exercise price and 2,464 shares at $3.19, plus 834 warrant-underlying shares at $12.00. These positions provide additional potential future share acquisitions if exercised.

How are the trust holdings for James E. Dunn, Jr. described in the Guerrilla RF Form 4?

The filing states that certain shares and warrants are held by the James E. Dunn, Jr. Restated 1985 Revocable Trust for his benefit. These positions, including 5,002 shares and 834 warrants, are reported as indirect ownership by trust on the Form 4.