STOCK TITAN

Guerrilla RF (GUER) grants director 14K stock option award

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Guerrilla RF, Inc. (GUER) director James E. Dunn, Jr. received a stock option grant for 14,164 shares of common stock on 2026-08-14 at an exercise price of $6.00 per share. The option is immediately exercisable but subject to a right of repurchase by Guerrilla RF for shares issued on early exercise before vesting, and it vests on the earlier of the first anniversary of the grant date or the next annual stockholders’ meeting, subject to continued service. Dunn also reports existing derivative positions including options over 2,464 shares at $3.19 (fully vested) and 15,625 shares at $3.05, plus indirect warrants and common stock held through a trust.

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Insider Dunn James E. Jr.
Role Director
Type Security Shares Price Value
Grant/Award Stock Option F3 14,164 $0.00 $0.00
holding Stock Option F2 -- -- --
holding Warrant F1 -- -- --
holding Stock Option -- -- --
holding Common Stock -- -- --
holding Common Stock F1 -- -- --
Holdings After Transaction: Stock Option — 32,253 shares (Direct); Warrant — 834 shares (Indirect, By Trust.); Common Stock — 36,732 shares (Direct); Common Stock — 22,754 shares (Indirect, By Trust)
Footnotes (3)
  1. F1. Shares and warrants held of record by the James E. Dunn, Jr. Restated 1985 Revocable Trust, for the benefit of Reporting Person.
  2. F2. The shares subject to the option are fully vested and exercisable.
  3. F3. The option is immediately exercisable, subject to a right of repurchase in favor of the Issuer with respect to shares issued to the Reporting Person upon exercise of the option prior to vesting. The option vests on the earlier of (i) the first anniversary of the grant date and (ii) the date of the Issuer's next annual meeting of stockholders (currently expected to be June 9, 2027), subject to the Reporting Person's continued service through such vesting date.
New option grant underlying shares 14,164 shares Stock option grant on 2026-08-14 to purchase Guerrilla RF common stock
New option exercise price $6.00 per share Exercise price for 14,164-share stock option granted on 2026-08-14
Existing option underlying shares (fully vested) 2,464 shares Stock option at $3.19 per share, fully vested and exercisable
Existing option exercise price $3.19 per share Fully vested stock option expiring 2030-10-30
Additional option underlying shares 15,625 shares Stock option at $3.05 per share expiring 2036-05-15
Warrant exercise price $12.00 per share Warrants over 834 shares held indirectly through a trust
Direct common stock holdings 36,732 shares Common stock directly held by James E. Dunn, Jr. after reported transactions
Indirect common stock holdings 22,754 shares Common stock held indirectly through a trust for Dunn’s benefit
right of repurchase financial
"subject to a right of repurchase in favor of the Issuer"
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.
immediately exercisable financial
"The option is immediately exercisable, subject to a right of repurchase"
vesting financial
"subject to the Reporting Person's continued service through such vesting date"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
stock option financial
"The shares subject to the option are fully vested and exercisable"
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.

FAQ

What equity award did GUER director James E. Dunn, Jr. receive on this Form 4?

James E. Dunn, Jr. received a stock option grant for 14,164 shares of Guerrilla RF common stock at an exercise price of $6.00 per share. The option is immediately exercisable but subject to repurchase and vests based on time and the next annual meeting.

What are the vesting terms of the new GUER stock option reported by James E. Dunn, Jr.?

The option vests on the earlier of one year from the 2026-08-14 grant date or Guerrilla RF’s next annual stockholders’ meeting, currently expected to be June 9, 2027, subject to Dunn’s continued service through the vesting date.

How many GUER common shares does James E. Dunn, Jr. hold directly and indirectly?

James E. Dunn, Jr. reports 36,732 shares of Guerrilla RF common stock held directly and 22,754 shares held indirectly through a trust. These holdings are in addition to his derivative securities such as options and warrants over Guerrilla RF common stock.

What existing Guerrilla RF stock options does James E. Dunn, Jr. report on this Form 4?

He reports stock options over 2,464 shares at an exercise price of $3.19 per share, which are fully vested and exercisable, and options over 15,625 shares at an exercise price of $3.05 per share, each expiring on their stated expiration dates in 2030 and 2036 respectively.

What Guerrilla RF warrants are indirectly held by James E. Dunn, Jr. through a trust?

A trust for the benefit of James E. Dunn, Jr. holds warrants over 834 shares of Guerrilla RF common stock with an exercise price of $12.00 per share, exercisable from 2023-08-28 until their expiration on 2028-08-28.

Is the new GUER stock option granted to James E. Dunn, Jr. immediately exercisable?

Yes. The filing states the option is immediately exercisable, but Guerrilla RF has a right of repurchase for shares issued upon exercise before vesting. The repurchase right applies only to early-exercised, unvested shares.

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

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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)
2315 KIRKPATRICK PLACE

(Street)
GREENSBORO NORTH CAROLINA 27408

(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)
08/14/2026
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 Stock36,732D
Common Stock22,754IBy 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$3.19 (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
Stock Option$608/14/2026A14,164 (3)08/14/2036Common Stock14,164$014,164D
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. The option is immediately exercisable, subject to a right of repurchase in favor of the Issuer with respect to shares issued to the Reporting Person upon exercise of the option prior to vesting. The option vests on the earlier of (i) the first anniversary of the grant date and (ii) the date of the Issuer's next annual meeting of stockholders (currently expected to be June 9, 2027), subject to the Reporting Person's continued service through such vesting date.
/s/ Charnice Suggs, Attorney-in-Fact08/18/2026
** 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)