United States Semiconductors & Semiconductor Equipment

Guerrilla RF Inc (GUER)

Guerrilla RF Inc experienced insider trading activity on May 13, 2026, involving two separate purchase transactions. James E. Dunn Jr. and Chief Financial Officer Michael John-Williams acquired shares, marking the most recent recorded market movements. These acquisitions represent the latest documented internal equity accumulation for the firm.
Ticker: GUER Exchange: PNK
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Guerrilla RF Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
3.8
Dunn James E. Jr. Non-Executive Director
Transaction date
Purchase
Price
93.54
Quantity 19,299 -30.9%
Value US$4,526,270
3.2
John-Williams Michael Chief Financial Officer Officer
Transaction date
Purchase
Price
442.20
Quantity 22,757 -43.4%
Value US$2,658,809
3.8
Dunn James E. Jr. Non-Executive Director
Transaction date
Purchase
Price
283.50
Quantity 31,453 -13.0%
Value US$770,199
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
3.75
Quantity 216 +18.5%
Value US$810
3.8
Dunn James E. Jr. Non-Executive Director
Transaction date
Purchase
Price
3.00
Quantity 1,666 +9.5%
Value US$4,998
1.4
Pratt Ryan Michael Chief Executive Officer Executive Director
Transaction date
Purchase
Price
4.25
Quantity 100 +0.0%
Value US$425
1.4
Pratt Ryan Michael Chief Executive Officer Executive Director
Transaction date
Purchase
Price
3.52
Quantity 901 +0.1%
Value US$3,172
1.4
Pratt Ryan Michael Chief Executive Officer Executive Director
Transaction date
Purchase
Price
4.25
Quantity 59 +8.1%
Value US$251
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
4.25
Quantity 200 +20.7%
Value US$850
1.4
Pratt Ryan Michael Chief Executive Officer Executive Director Large shareholder
Transaction date
Purchase
Price
2.50
Quantity 33,822 +3.7%
Value US$84,555
1.6
Mason Mark Alan Chief Operating Officer Officer
Transaction date
Purchase
Price
4.52
Quantity 225 New position
Value US$1,017
1.4
Pratt Ryan Michael Chief Executive Officer Executive Director Large shareholder
Transaction date
Purchase
Price
4.99
Quantity 43 New position
Value US$215
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
6.95
Quantity 100 +35.3%
Value US$695
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
7.00
Quantity 200 +52.2%
Value US$1,400
3.8
SUMMERELL VIRGINIA R Non-Executive Director
Transaction date
Purchase
Price
6.20
Quantity 200 New position
Value US$1,240
3.8
SUMMERELL VIRGINIA R Non-Executive Director
Transaction date
Purchase
Price
7.00
Quantity 200 +100.0%
Value US$1,400
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
7.75
Quantity 200 +241.0%
Value US$1,550
Barkal Susan Berish Non-Executive Director
Transaction date
Purchase
Price
1.30
Quantity 40,000 New position
Value US$52,000
Berg John Alen Chief Financial Officer Officer
Transaction date
Purchase
Price
1.30
Quantity 20,000 +13.9%
Value US$26,000
3.8
Dunn James E. Jr. Non-Executive Director
Transaction date
Purchase
Price
1.30
Quantity 10,000 New position
Value US$13,000
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
4.00
Quantity 500 New position
Value US$2,000
1.5
PRATT WILLIAM J Non-Executive Director
Transaction date
Purchase
Price
4.00
Quantity 200 +0.0%
Value US$800
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-19 2026-05-13 B Purchase
3.8
Dunn James E. Jr.
Non-Executive Director
19,299 -30.9%
93.54
US$4,526,270 		19,299 -30.9% 93.54 US$4,526,270
2026-05-15 2026-05-13 B Purchase
3.2
John-Williams Michael

Chief Financial Officer

Officer
22,757 -43.4%
442.20
US$2,658,809 		22,757 -43.4% 442.20 US$2,658,809
2024-12-11 2024-11-26 B Purchase
3.8
Dunn James E. Jr.
Non-Executive Director
31,453 -13.0%
283.50
US$770,199 		31,453 -13.0% 283.50 US$770,199
2024-08-28 2024-08-27 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
216 +18.5%
3.75
US$810 		216 +18.5% 3.75 US$810
2024-05-31 2024-05-29 B Purchase
3.8
Dunn James E. Jr.
Non-Executive Director
1,666 +9.5%
3.00
US$4,998 		1,666 +9.5% 3.00 US$4,998
2024-05-28 2024-05-28 B Purchase
1.4
Pratt Ryan Michael

Chief Executive Officer

Executive Director
100 +0.0%
4.25
US$425 		100 +0.0% 4.25 US$425
2024-05-28 2024-05-24 B Purchase
1.4
Pratt Ryan Michael

Chief Executive Officer

Executive Director
901 +0.1%
3.52
US$3,172 		901 +0.1% 3.52 US$3,172
2024-05-28 2024-05-23 B Purchase
1.4
Pratt Ryan Michael

Chief Executive Officer

Executive Director
59 +8.1%
4.25
US$251 		59 +8.1% 4.25 US$251
2024-05-20 2024-05-20 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
200 +20.7%
4.25
US$850 		200 +20.7% 4.25 US$850
2024-04-01 2024-03-28 B Purchase
1.4
Pratt Ryan Michael

Chief Executive Officer

Executive Director Large shareholder
33,822 +3.7%
2.50
US$84,555 		33,822 +3.7% 2.50 US$84,555
2023-06-01 2023-05-30 B Purchase
1.6
Mason Mark Alan

Chief Operating Officer

Officer
225 New position
4.52
US$1,017 		225 New position 4.52 US$1,017
2023-05-30 2023-05-25 B Purchase
1.4
Pratt Ryan Michael

Chief Executive Officer

Executive Director Large shareholder
43 New position
4.99
US$215 		43 New position 4.99 US$215
2023-05-19 2023-05-18 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
100 +35.3%
6.95
US$695 		100 +35.3% 6.95 US$695
2023-05-19 2023-05-18 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
200 +52.2%
7.00
US$1,400 		200 +52.2% 7.00 US$1,400
2023-05-19 2023-05-18 B Purchase
3.8
SUMMERELL VIRGINIA R
Non-Executive Director
200 New position
6.20
US$1,240 		200 New position 6.20 US$1,240
2023-05-19 2023-05-18 B Purchase
3.8
SUMMERELL VIRGINIA R
Non-Executive Director
200 +100.0%
7.00
US$1,400 		200 +100.0% 7.00 US$1,400
2023-05-16 2023-05-15 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
200 +241.0%
7.75
US$1,550 		200 +241.0% 7.75 US$1,550
2023-01-23 2023-01-20 B Purchase
Barkal Susan Berish
Non-Executive Director
40,000 New position
1.30
US$52,000 		40,000 New position 1.30 US$52,000
2023-01-04 2022-12-30 B Purchase
Berg John Alen

Chief Financial Officer

Officer
20,000 +13.9%
1.30
US$26,000 		20,000 +13.9% 1.30 US$26,000
2023-01-04 2022-12-30 B Purchase
3.8
Dunn James E. Jr.
Non-Executive Director
10,000 New position
1.30
US$13,000 		10,000 New position 1.30 US$13,000
2022-08-31 2022-08-17 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
500 New position
4.00
US$2,000 		500 New position 4.00 US$2,000
2022-08-31 2022-08-17 B Purchase
1.5
PRATT WILLIAM J
Non-Executive Director
200 +0.0%
4.00
US$800 		200 +0.0% 4.00 US$800
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