Guerrilla RF, Inc. (GUER) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-06-23

Guerrilla RF, Inc. (GUER) has filed 16 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-23. 2 Form 8-K material event filings were reported by GUER in the last 90 days. InsiderAlpha tracks every GUER SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Guerrilla RF, Inc. (GUER)

SEC CIK	0001832487

90-Day SEC Filing Activity

Form 4 filings (90d)	16
Form 8-K filings (90d)	2
Latest Form 4 filing	2026-06-23

Recent GUER Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-06-18	HAMMER TODD B	Director	M — Option exercise	15.6K	$3.05	$48K	SEC
2026-06-18	ELLIS THOMAS B	Director	M — Option exercise	15.6K	$3.05	$48K	SEC
2026-06-11	Dunn James E. Jr.	Director	M — Option exercise	2.5K	$1.93	$5K	SEC
2026-06-11	Dunn James E. Jr.	Director	M — Option exercise	2.5K	$1.42	$3K	SEC
2026-06-11	Dunn James E. Jr.	Director	M — Option exercise	1.2K	$2.20	$3K	SEC
2026-05-13	John-Williams Michael	Chief Financial Officer	P — Open-market purchase	2.0K	$2.82	$6K	SEC
2026-05-13	Dunn James E. Jr.	Director	P — Open-market purchase	3.3K	$3.00	$10K	SEC
2024-11-26	Dunn James E. Jr.	Director	P — Open-market purchase	9.1K	$1.10	$10K	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Guerrilla RF, Inc. (GUER). Updated in real time as new filings are submitted to the SEC.

Most-Active GUER Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Dunn James E. Jr.	8	$21K
John-Williams Michael	4	$6K
HAMMER TODD B	3	$48K
ELLIS THOMAS B	3	$48K
Chong Kellie Hyon-Ok	1	—

Recent GUER Form 8-K Material Events

2026-06-05 — Item 5.07, 9.01 [SEC]
2026-05-06 — Item 2.02, 9.01 [SEC]
2026-03-26 — Item 2.02, 9.01 · Earnings · neutral [SEC]
Guerrilla RF, Inc. issued an earnings release on March 26, 2026, announcing financial results for the fourth quarter and full year ended December 31, 2025. The filing provides standard financial results reporting without explicit beat/miss or guidance language.

Recent Insider Filings

2026-06-23 — HAMMER TODD B (Director)
2026-06-23 — ELLIS THOMAS B (Director)
2026-06-15 — Dunn James E. Jr. (Director)
2026-05-19 — BELL DAVID B (Director)
2026-05-19 — HAMMER TODD B (Director)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in GUER insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

GUER Insider Trading — FAQ

What is the latest insider trade for GUER?: Guerrilla RF, Inc. (GUER) had 16 insider filings in the last 90 days, with the most recent on 2026-06-23. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying GUER stock?: 0 insider purchases of GUER were filed in the last 90 days.
How many insiders are selling GUER stock?: 0 insider sales of GUER were filed in the last 90 days.
Where can I see GUER SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every GUER SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

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