Richardson Electronics, Ltd.
A distributor and maker of electron tubes, RF and microwave components, and engineered solutions used in healthcare imaging, aviation, broadcast, and industrial equipment. Founded in 1947 by Edward J. Richardson, the Illinois-based company grew from a small tube distributor into a global supplier, taking its name from its founder. Its power grid tubes help keep radar systems, medical imaging machines, and broadcast transmitters running worldwide.
Granted 40.0K
Granted 40.0K
Granted 28.0K · Sold 21.0K
Granted 9.3K · Bought 9.0K
Granted 33.0K · Sold 23.0K
Granted 19.0K · Sold 17.0K
Granted 25.0K · Sold 25.0K
Granted 9.3K · Bought 10.0K · Sold 3.0K
Granted 19.3K
Granted 9.3K · Bought 8.8K
Granted 29.3K · Bought 9.2K · Sold 25.7K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Richardson Edward JChairman & CEO, Director, 10% owner · 9 transactions | -1.5% | 2.05M | 40.0K | — | — |
| Diddell WendyCOO, Director · 12 transactions | +22% | 126.4K | 40.0K | — | — |
| Ben Robert JCFO, CAO, Corporate Secretary · 18 transactions | +11.6% | 53.0K | 28.0K | — | 21.0K |
| Kluge Robert HDirector · 5 transactions | +222.3% | 48.3Kas of Jul 2025 | 9.3K | 9.0K | — |
| McNally KathleenEVP Global Supply Chain · 18 transactions | +23% | 47.6K | 33.0K | — | 23.0K |
| Ruppert Jens FrankEVP Canvys · 8 transactions | +26.7% | 47.5K | 19.0K | — | 17.0K |
| Peloquin Gregory JEVP PMT · 6 transactions | -11.6% | 21.2Kas of May 2024 | 25.0K | — | 25.0K |
| Benham JamesDirector · 7 transactions | — | 19.3K | 9.3K | 10.0K | 3.0K |
| Belin JacquesDirector · 5 transactions | +286.9% | 19.3K | 19.3K | — | — |
| Plante Paul JDirector · 4 transactions | +21.1% | 18.2Kas of Jul 2025 | 9.3K | 8.8K | — |
| Halverson KennethDirector · 15 transactions | — | 10.9K | 29.3K | 9.2K | 25.7K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -77.7K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.