WD
Wendy Diddell
COO

Wendy Diddell insider trades: Richardson Electronics (RELL) stock buys and sales

COO, Richardson Electronics Last trade Aug 4, 2026 59 Form 4 filings
$478K
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
25
Open-market trades
since 2005
2
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Wendy reports to the SEC

Open-market buys and sales

25 trades reported on SEC Form 4, newest first

DateStockTypeValue
Aug 4, 2026RELL↓ Sell$478K
Aug 18, 2023RELL↓ Sell$21K
Aug 16, 2023RELL↓ Sell$45K
Aug 8, 2023RELL↓ Sell$468K
Jan 7, 2022RELL↓ Sell$739K
Dec 27, 2021RELL↓ Sell$230K
Dec 23, 2021RELL↓ Sell$20K
Dec 8, 2021RELL↓ Sell$841K
Sep 4, 2019RELL↓ Sell$61K
Mar 13, 2019RELL↓ Sell$5K
Mar 12, 2019RELL↓ Sell$12K
Aug 20, 2018RELL↓ Sell$23K
Aug 16, 2018RELL↓ Sell$28K
Aug 15, 2018RELL↓ Sell$23K
Aug 13, 2018RELL↓ Sell$8K
Dec 2, 2010RELL↓ Sell$169K
Dec 1, 2010RELL↓ Sell$78K
Nov 24, 2010RELL↓ Sell$45K
Nov 19, 2010RELL↓ Sell$50K
Nov 4, 2010RELL↓ Sell$23K
Jan 12, 2010RELL↓ Sell$2K
Jan 22, 2008RELL↑ Buy$6K
Jan 18, 2008RELL↑ Buy$4K
Oct 17, 2006REL↓ Sell$27K
Nov 11, 2005REL↓ Sell$29K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other RELL insiders

Open-market trades in the last 12 months

About Wendy Diddell's insider trades

Wendy Diddell is COO at Richardson Electronics (RELL). Since Nov 11, 2005, Wendy has reported 2 open-market purchases worth $10K and 23 sales worth $3.4M on SEC Form 4. In the last 12 months: 1 sale ($478K).

Their filings also include grants and awards (21 filings), option exercises (18 filings), shares withheld for taxes (9 filings), gifts (4 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every RELL insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.