Key facts
- This page summarizes William J. Pratt's Form 4 filing for Guerrilla RF, Inc. (GUER).
- 1 reported transaction and 6 derivative rows are listed below.
- Accepted by SEC: 19 May 2026, 10:38.
William J. Pratt - 15 May 2026 Form 4 Insider Report for Guerrilla RF, Inc. (GUER)
- Reporting relationship
- Director
- Issuer ticker
- GUER
- Reported as of
- 15 May 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 19 May 2026, 10:38:12 UTC
- Prior SEC filing
- 28 Aug 2024
- Source filing
- View source filing
- Reporting owner signature
- /s/ Iain MacSween, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
William J. Pratt filed Form 4 for Guerrilla RF, Inc. (GUER) on 19 May 2026.
Change
- Previous filing in this sequence was filed on 28 Aug 2024.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001223928
Primary reporting owner
PRATT WILLIAM J
- Relationship
- Director
- Address
- 2610 SOUTHERN GATES DR., GREENSBORO
- Signature
- /s/ Iain MacSween, Attorney-in-Fact
- Signature date
- 19 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
GUER
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 151,789
- Date
- 15 May 2026
- Ownership
- Direct
GUER
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,000
- Date
- 15 May 2026
- Ownership
- Held by Spouse
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
GUER
transaction
Derivative
Stock Option
Award
- Transaction value
- Shares
- +15,625
- Change %
- Price
- $0.000000*
- Shares after
- 15,625
- Date
- 15 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 15,625
- Exercise price
- $3.05
GUER
holding
Derivative
Stock Option
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,462
- Date
- 15 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 2,462
- Exercise price
- $1.42
- Footnotes
- F1
GUER
holding
Derivative
Stock Option
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,464
- Date
- 15 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 2,464
- Exercise price
- $1.93
- Footnotes
- F1
GUER
holding
Derivative
Stock Option
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,967
- Date
- 15 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,967
- Exercise price
- $2.20
- Footnotes
- F1
GUER
holding
Derivative
Stock Option
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,971
- Date
- 15 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,971
- Exercise price
- $3.19
- Footnotes
- F1
GUER
holding
Derivative
Warrant
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 21,139
- Date
- 15 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 21,139
- Exercise price
- $2.50
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
The shares subject to the option are fully vested and exercisable.