Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Guerrilla RF, Inc.

GUER · OTC · CIK 0001832487 · Technology · Semiconductors

INSIDER SIGNAL

42.0 / 100

2 buyers · 2 purchase transaction lines · $15.6K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleModerate
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+14.0 / 35
Purchase size+2.3 / 25
Role+15.0 / 20
Recency+0.7 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 2 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Purchase activity is becoming less recent
  • ✓ Role scores high · most senior buyer: Chief Financial Officer

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
HAMMER TODD BDirector,TenPercentOwner
○○
ELLIS THOMAS BDirector,TenPercentOwner
○○
Dunn James E. Jr.Director
●○
John-Williams MichaelChief Financial Officer
●
Pratt Ryan MichaelChief Executive Officer
○
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION64%Largest buyer: Dunn James E. Jr. · $10.0K
CLUSTER BUYING · 15D2 insidersPeak activity: 2026-05-13–2026-05-13

Roles in the peak window: Chief Financial Officer, Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

42.0 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 42.2
  2. 42.2
  3. 42.1
  4. 42.1
  5. 42.0

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

2Purchases
0Sales
9Other Form 4 lines
9SEC filings · 365 days
BUYING2 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER8 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-0.2%
3M
+45.2%
6M
+110.0%
12M
+270.0%

Volatility & liquidity

Volatility
131.2%
Beta
—
Avg daily value
USD 40,840

Valuation

Market cap
USD 44.9M
P/E
—

Fundamentals

Profit margin
-30.7%
ROE
—
Industry
Semiconductors

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-11 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
6,095
Previous report
8,052
Avg daily volume
9,130
Days to cover
≤ 1.0

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-13Dunn James E. Jr.Purchase (P)Common Stock3,335USD 3.00USD 10,005SEC filing ↗
2026-05-13John-Williams MichaelPurchase (P)Common Stock2,000USD 2.82USD 5,640SEC filing ↗
2024-11-26Dunn James E. Jr.Purchase (P)Common Stock9,100USD 1.10USD 10,010SEC filing ↗
2024-08-27PRATT WILLIAM JPurchase (P)Common Stock216USD 3.75USD 810SEC filing ↗
2024-05-29Dunn James E. Jr.Purchase (P)Common Stock1,666USD 3.00USD 4,998SEC filing ↗
2024-05-28Pratt Ryan MichaelPurchase (P)Common Stock100USD 4.25USD 425SEC filing ↗
2024-05-24Pratt Ryan MichaelPurchase (P)Common Stock901USD 3.52USD 3,172SEC filing ↗
2024-05-23Pratt Ryan MichaelPurchase (P)Common Stock59USD 4.25USD 251SEC filing ↗
2024-05-20PRATT WILLIAM JPurchase (P)Common Stock200USD 4.25USD 850SEC filing ↗
2024-03-28SALEM INVESTMENT PARTNERS V, LIMITED PARTNERSHIPPurchase (P)Common Stock261,723USD —USD —SEC filing ↗
2024-03-28Pratt Ryan MichaelPurchase (P)Common Stock33,822USD 2.50USD 84,555SEC filing ↗
2024-03-28PRATT WILLIAM JPurchase (P)Common Stock21,139USD —USD —SEC filing ↗
2023-05-30Mason Mark AlanPurchase (P)Common Stock225USD 4.52USD 1,017SEC filing ↗
2023-05-25Pratt Ryan MichaelPurchase (P)Common Stock43USD 4.99USD 215SEC filing ↗
2023-05-18SUMMERELL VIRGINIA RPurchase (P)Common Stock400USD 6.60USD 2,640SEC filing ↗

Form 4 evidence

11 transaction lines in the latest 365-day window; 45 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-28HAMMER TODD BOption exercise / conversion (M)Common Stock14,164USD 6.00USD 84,984SEC filing ↗
2026-08-28ELLIS THOMAS BOption exercise / conversion (M)Common Stock14,164USD 6.00USD 84,984SEC filing ↗
2026-08-26Pratt Ryan MichaelOption exercise / conversion (M)Common Stock1,477USD 1.42USD 2,097SEC filing ↗
Show recent Form 4 evidence (9 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-28HAMMER TODD BOption exercise / conversion (M)Common Stock14,164USD 6.00USD 84,984SEC filing ↗
2026-08-28ELLIS THOMAS BOption exercise / conversion (M)Common Stock14,164USD 6.00USD 84,984SEC filing ↗
2026-08-26Pratt Ryan MichaelOption exercise / conversion (M)Common Stock1,477USD 1.42USD 2,097SEC filing ↗
2026-06-18HAMMER TODD BOption exercise / conversion (M)Common Stock15,625USD 3.05USD 47,656SEC filing ↗
2026-06-18ELLIS THOMAS BOption exercise / conversion (M)Common Stock15,625USD 3.05USD 47,656SEC filing ↗
2026-06-11Dunn James E. Jr.Option exercise / conversion (M)Common Stock6,155USD 1.78USD 10,955SEC filing ↗
2026-05-13Dunn James E. Jr.Purchase (P)Common Stock3,335USD 3.00USD 10,005SEC filing ↗
2026-05-13John-Williams MichaelPurchase (P)Common Stock2,000USD 2.82USD 5,640SEC filing ↗
2025-11-17Pratt Ryan MichaelW (W)Common Stock18,922USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerGUER
CIK0001832487
SectorTechnology
IndustrySemiconductors Yahoo Finance
SEC SIC3674 Semiconductors & Related Devices
ExchangeOTC

Data coverage

Local Form 4 history45 transaction lines from 2021-10-21 to 2026-08-28
25 P purchase lines · 0 S sale lines · 20 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.