DL
Didier Lasserre
Director

Didier Lasserre insider trades: Gsi Technology (GSIT) stock buys and sales

Director, Gsi Technology Last trade May 21, 2026 37 Form 4 filings
$279K
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
12
Open-market trades
since 2007
1
Company
last trade 2026

Trades on the price chart

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

Companies

Where Didier reports to the SEC

Open-market buys and sales

12 trades reported on SEC Form 4, newest first

DateStockTypeValue
May 21, 2026GSIT↓ Sell$279K
May 17, 2022GSIT↑ Buy$15K
Feb 7, 2020GSIT↓ Sell$92K
Feb 5, 2019GSIT↓ Sell$81K
Feb 2, 2018GSIT↓ Sell$79K
Dec 10, 2013GSIT↓ Sell10b5-1$132K
Jul 9, 2013GSIT↓ Sell10b5-1$191K
Jun 11, 2013GSIT↓ Sell$68K
Mar 22, 2010GSIT↓ Sell10b5-1$94K
Feb 25, 2009GSIT↑ Buy$11K
Nov 21, 2007GSIT↑ Buy$7K
Aug 9, 2007GSIT↑ Buy$15K

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

Other GSIT insiders

Open-market trades in the last 12 months

About Didier Lasserre's insider trades

Didier Lasserre is a director at Gsi Technology (GSIT). Since Aug 9, 2007, Didier has reported 4 open-market purchases worth $48K and 8 sales worth $1.0M on SEC Form 4. In the last 12 months: 1 sale ($279K).

3 sales (41% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.

Their filings also include grants and awards (24 filings), option exercises (9 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 GSIT insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.