FREQUENCY ELECTRS INC COM is a security (CUSIP 358010906) tracked across SEC portfolio filings. 2 institutional managers reported $805K on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $796K | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $9K | — |