STOCK TITAN

Guerrilla RF (GUER) CBO awarded 20,000 stock options and reports holdings

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

Rhea-AI Filing Summary

Guerrilla RF, Inc. Chief Business Officer Kellie Hyon-Ok Chong reported her equity holdings and a new option grant. She received 20,000 stock options for common stock at an exercise price of $6.00 per share, expiring on May 15, 2036, as a compensation award.

After this filing, she directly holds 24,292 shares of common stock and has an indirect interest in 4,804 shares held by Ninth Technology, LLC, where she is a member and manager. She also holds previously granted options on 25,000 shares at $3.05 and 21,667 shares at $12.00, plus 5,897 restricted stock units that convert into common stock upon vesting.

Positive

  • None.

Negative

  • None.
Insider Chong Kellie Hyon-Ok
Role Chief Business Officer
Type Security Shares Price Value
Grant/Award Stock Option 20,000 $0.00 --
holding Stock Option -- -- --
holding Restricted Stock Unit -- -- --
holding Stock Option -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Stock Option — 20,000 shares (Direct, null); Restricted Stock Unit — 5,897 shares (Direct, null); Common Stock — 4,804 shares (Indirect, See footnote.); Common Stock — 24,292 shares (Direct, null)
Footnotes (1)
  1. Represents the Reporting Person's proportionate pecuniary interest in the 24,016 shares of common stock held directly by Ninth Technology, LLC ("Ninth Technology"). The Reporting Person is a member and manager of Ninth Technology. The Reporting Person disclaims beneficial ownership of the shares held by Ninth Technology except to the extent of her proportionate pecuniary interest therein. Each restricted stock unit represents a contingent right to receive one share of common stock upon vesting of the unit. No expiration date. The shares subject to the option are fully vested and exercisable. The restricted stock units vest on 1/1/2027, subject to the Reporting Person's continued service through the applicable vesting date. The options vest as follows: (i) 6,250 options on 5/21/2026; (ii) 520 options on 6/21/26, and monthly thereafter through 4/21/2029; and (iii) 550 options on 5/21/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date. The options vest as follows: (i) 5,000 options on 5/15/2027; and (ii) 1,250 options on 8/15/2027, and quarterly thereafter through 5/15/2030, in each case subject to the Reporting Person's continued service through the applicable vesting date.
New option grant 20,000 options at $6.00 Stock options expiring May 15, 2036
Direct common shares 24,292 shares Common stock held directly after transactions
Indirect interest 4,804 shares Proportionate pecuniary interest via Ninth Technology, LLC
Option position 1 25,000 options at $3.05 Fully vested; expire November 17, 2035
Option position 2 21,667 options at $12.00 Vest through April 21, 2029; expire February 21, 2032
Restricted stock units 5,897 RSUs Vest January 1, 2027; one share per unit
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.
restricted stock unit financial
"Each restricted stock unit represents a contingent right to receive one share of common stock upon vesting of the unit."
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
pecuniary interest financial
"Represents the Reporting Person's proportionate pecuniary interest in the 24,016 shares of common stock held directly by Ninth Technology, LLC."
beneficial ownership financial
"The Reporting Person disclaims beneficial ownership of the shares held by Ninth Technology except to the extent of her proportionate pecuniary interest therein."
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
vesting financial
"The options vest as follows: (i) 5,000 options on 5/15/2027; and (ii) 1,250 options on 8/15/2027, and quarterly thereafter through 5/15/2030."
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.
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*
Chong Kellie Hyon-Ok

(Last)(First)(Middle)
6021 BECKENHAM WAY

(Street)
OAK RIDGE NORTH CAROLINA 27310

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Business Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026
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 Stock4,804ISee footnote.(1)
Common Stock24,292D
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$12 (4)02/21/2032Common Stock21,66721,667D
Restricted Stock Unit(2) (5) (3)Common Stock5,8975,897D
Stock Option$3.05 (6)11/17/2035Common Stock25,00025,000D
Stock Option$605/15/2026A20,000 (7)05/15/2036Common Stock20,000$020,000D
Explanation of Responses:
1. Represents the Reporting Person's proportionate pecuniary interest in the 24,016 shares of common stock held directly by Ninth Technology, LLC ("Ninth Technology"). The Reporting Person is a member and manager of Ninth Technology. The Reporting Person disclaims beneficial ownership of the shares held by Ninth Technology except to the extent of her proportionate pecuniary interest therein.
2. Each restricted stock unit represents a contingent right to receive one share of common stock upon vesting of the unit.
3. No expiration date.
4. The shares subject to the option are fully vested and exercisable.
5. The restricted stock units vest on 1/1/2027, 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 4/21/2029; and (iii) 550 options on 5/21/2029, in each case subject to the Reporting Person's continued service through the applicable vesting date.
7. The options vest as follows: (i) 5,000 options on 5/15/2027; and (ii) 1,250 options on 8/15/2027, and quarterly thereafter through 5/15/2030, in each case subject to the Reporting Person's continued service through the applicable vesting date.
/s/ Iain MacSween, Attorney-in-Fact05/19/2026
** 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) disclose about Kellie Hyon-Ok Chong in this Form 4?

The filing shows Chief Business Officer Kellie Hyon-Ok Chong received a grant of stock options and reported her current equity holdings, including direct shares, indirect interests, existing options, and restricted stock units, giving a clearer picture of her overall stake in Guerrilla RF.

How many stock options were granted to Kellie Hyon-Ok Chong by Guerrilla RF (GUER)?

Kellie Hyon-Ok Chong was granted 20,000 stock options for Guerrilla RF common stock. These options have an exercise price of $6.00 per share and expire on May 15, 2036, and were reported as a grant or award, not an open-market purchase.

What common stock does Kellie Hyon-Ok Chong hold in Guerrilla RF (GUER) after this filing?

After the reported transactions, she directly holds 24,292 shares of Guerrilla RF common stock and has an indirect proportionate pecuniary interest in 4,804 shares held by Ninth Technology, LLC, where she is a member and manager, as described in the footnotes.

What existing stock options does Kellie Hyon-Ok Chong have in Guerrilla RF (GUER)?

She holds options over 25,000 shares at an exercise price of $3.05 expiring in 2035, and 21,667 shares at $12.00 expiring in 2032. Footnotes state the 3.05 options are fully vested and exercisable, while the 12.00 options vest in tranches through 2029.

What restricted stock units does Kellie Hyon-Ok Chong hold in Guerrilla RF (GUER)?

She holds 5,897 restricted stock units, each representing a contingent right to receive one share of Guerrilla RF common stock. According to the footnotes, these units vest on January 1, 2027, assuming she continues her service with the company through that vesting date.

How are Kellie Hyon-Ok Chong’s indirect Guerrilla RF (GUER) holdings structured?

Her indirect interest relates to 24,016 shares held by Ninth Technology, LLC. The filing attributes 4,804 shares as her proportionate pecuniary interest. She serves as a member and manager of Ninth Technology and disclaims beneficial ownership beyond that proportionate interest.