Comparable stake leader
Laurence W. Lytton
SEC ownership of Guerrilla RF, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001832487.
Disclosed value leader
Mark N. Tompkins
Comparable rows
3/23
Latest evidence
15 May 2026
- Public ticker
- GUER on OTC
- Parsed ownership sources
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- Laurence W. Lytton
- Latest 13D/G holder
- Laurence W. Lytton
- Latest parsed ownership date
- 15 May 2026
- Issuer CIK
- 0001832487
- Issuer location
- Greensboro, NC
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Guerrilla RF, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Laurence W. Lytton
Disclosed value leader
Mark N. Tompkins
Comparable rows
3/23
Latest evidence
15 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 10%
20 rows are not safely comparable across share classes.
13D/G row: Laurence W. Lytton
Showing 1-8 of 23 holder rows.
Quick read
Laurence W. Lytton leads the comparable SEC ownership view at 10%.
3 of 23 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Laurence W. Lytton's linked filing trail.
Comparable ownership
Top 3
Laurence W. Lytton
10%
Bleichroeder LP
7.7%
Diversified Trust Co
0.31%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 23 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Laurence W. Lytton |
13D/G
Lytton, Laurence W.
|
10%
|
$1,109,943
1,088,179 shares
|
$0 | 28 Mar 2024 |
| Bleichroeder LP |
13D/G
|
7.7%
|
$800,000
800,000 shares
|
$0 | 19 Mar 2025 |
| Diversified Trust Co |
13F
Company
|
0.31%
|
$60,624
33,494 shares
|
— | 31 Mar 2026 |
| Alvin M. Bodford |
3/4/5
Beneficial Owner, 10%+ Owner
|
—
mixed-class rows
|
$4,777,263
1,910,905 shares
mixed-class rows
|
— | 28 Mar 2024 |
| SALEM INVESTMENT PARTNERS V, LIMITED PARTNERSHIP |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$2,392,753
957,101 shares
mixed-class rows
|
— | 28 Mar 2024 |
| Thomas B. Ellis |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$92,668
10,147,320 shares
mixed-class rows
|
— | 15 May 2026 |
| Todd B. Hammer |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$92,668
10,147,320 shares
mixed-class rows
|
— | 15 May 2026 |
| Mark N. Tompkins |
3/4/5
Former Director
|
—
class O/S missing
|
$5,400,000
2,700,000 shares
|
— | 12 Nov 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$15,645.
Buys
$15,645
Insiders: 2
Sells
$0
Insiders: 0
Net
+$15,645
Shares: +5,335
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 5,335
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 5,335 | 0 | $15,645 | $0 | +$15,645 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to Guerrilla RF, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Mark N. Tompkins
Net 12M change
+$15,645
Latest report
15 May 2026
Recent insider transactions for Guerrilla RF, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| David B. Bell | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| Todd B. Hammer | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| Thomas B. Ellis | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| Susan Berish Barkal | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| Virginia R. Summerell | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| Gary L. /nc/ Smith | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| William J. Pratt | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| James E. Dunn Jr. | GUER | Stock Option | Award | 15,625 | 15,625 | 15 May 2026 | Direct | |||
| Ryan Michael Pratt | GUER | Stock Option | Award | 45,000 | 45,000 | 15 May 2026 | Direct | |||
| Kellie Hyon-Ok Chong | GUER | Stock Option | Award | 20,000 | 20,000 | 15 May 2026 | Direct | |||
| Mark Alan Mason | GUER | Stock Option | Award | 27,500 | 27,500 | 15 May 2026 | Direct | |||
| Michael John-Williams | GUER | Stock Option | Award | 32,500 | 32,500 | 15 May 2026 | Direct | |||
| James E. Dunn Jr. | GUER | Common Stock | Purchase | 200.1% | $10,005 | $3.00 | 3,335 | 5,002 | 13 May 2026 | By Trust |
| Michael John-Williams | GUER | Common Stock | Purchase | 25.4% | $5,640 | $2.82 | 2,000 | 9,870 | 13 May 2026 | Direct |
| Michael John-Williams | GUER | Stock Option | Award | 46,534 | 46,534 | 17 Nov 2025 | Direct | |||
| Michael John-Williams | GUER | Stock Option | Award | 46,534 | 46,534 | 17 Nov 2025 | Direct | |||
| Ryan Michael Pratt | GUER | Common Stock | Will/Inheritance | 1.89% | 18,922 | 1,017,741 | 17 Nov 2025 | Direct | ||
| Mark Alan Mason | GUER | Stock Option | Award | 25,000 | 25,000 | 17 Nov 2025 | Direct | |||
| Michael John-Williams | GUER | Stock Option | Award | 46,534 | 46,534 | 17 Nov 2025 | Direct | |||
| Michael John-Williams | GUER | Restricted Stock Unit | Award | 24,590 | 24,590 | 17 Nov 2025 | Direct | |||
| Kellie Hyon-Ok Chong | GUER | Stock Option | Award | 25,000 | 25,000 | 17 Nov 2025 | Direct | |||
| Ryan Michael Pratt | GUER | Stock Option | Award | 330 | 330 | 17 Nov 2025 | Held by Spouse | |||
| Ryan Michael Pratt | GUER | Stock Option | Award | 50,000 | 50,000 | 17 Nov 2025 | Direct |
* marks a reported price that did not pass the local price check.