RENAISSANCE TECHNOLOGIES LLC - 30 Sep 2025 SCHEDULE 13G/A Report for R F INDUSTRIES LTD Common Stock, $0.01 par value per share (RFIL)

Filing manager: RENAISSANCE TECHNOLOGIES LLC
Reporting owner: Renaissance Technologies LLC
Security: R F INDUSTRIES LTD Common Stock, $0.01 par value per share
Beneficially owned shares: 508,608 shares
Class ownership: 4.8%
Large-stake signal: Form
SCHEDULE 13G/A
Passive or exempt beneficial ownership filing.
Ownership
4.8%
Beneficial ownership of this reported class.
Shares
508,608 shares
Shares beneficially owned as disclosed.
Event date
30 Sep 2025
Date tied to the ownership event or amendment.
Accepted by SEC
13 Nov 2025
EDGAR acceptance date.
How to read this large-stake filing
Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
Compare this filing with the holder history and issuer page before treating the percentage as a current position.
Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Symbol: RFIL
Shares outstanding: 10,662,642 shares
Form type: SCHEDULE 13G/A
Accepted by SEC: 13 Nov 2025, 14:29:26 UTC
Event date: 30 Sep 2025
Previous filing: 13 Aug 2025
SEC filing: View on sec.gov

Key filing fact

RENAISSANCE TECHNOLOGIES LLC disclosed 4.8% ownership in R F INDUSTRIES LTD Common Stock, $0.01 par value per share (RFIL) on 30 Sep 2025.

Key facts

RENAISSANCE TECHNOLOGIES LLC filed SCHEDULE 13G/A for R F INDUSTRIES LTD Common Stock, $0.01 par value per share (RFIL).
Disclosed ownership: 4.8%.
Date of event: 30 Sep 2025.

This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares owned	Sole voting power	Shared voting power	Signature	Title	CIK
Renaissance Technologies LLC	4.8%	508,608	508,608	0	Brian Felczak	Chief Financial Officer
Renaissance Technologies Holdings Corporation	4.8%	508,608	508,608	0	Brian Felczak	Vice President

CIK / CUSIP context first

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