---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-012570"
form_type: "8-K/A"
ticker: "RFIL"
cik: "0000740664"
company_name: "R F INDUSTRIES LTD"
filed_at: "2022-05-16T23:59:59+00:00"
generated_at: "2026-06-25T15:54:19.267978+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# RF Industries completes Microlab acquisition for $24.25M; reports audited 2021 revenue of $17.8M

## Summary
- Purchase price $24.25M for 100% of Microlab from Wireless Telecom Group; closed March 1, 2022.
- Microlab 2021 audited financials: net revenue $17.76M, net income $158K, total assets $22.61M.
- Microlab's 2021 gross profit $7.50M (42.2% margin); operating income $173K.
- Pro forma condensed combined financials filed for fiscal year ended Oct 31, 2021, assuming acquisition occurred Nov 1, 2020.
- One customer accounted for 15.4% of Microlab's 2021 revenue; two customers each >13% of receivables.

## SEC filing metadata
- accession: 0001437749-22-012570
- form_type: 8-K/A
- ticker: RFIL
- cik: 0000740664
- company_name: R F INDUSTRIES LTD
- filed_at: 2022-05-16T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/740664/000143774922012570/0001437749-22-012570-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/740664/000143774922012570/rfil20220512_8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-012570
- JSON: https://secwatch.observer/filing/0001437749-22-012570.json
- Plain text: https://secwatch.observer/filing/0001437749-22-012570.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.