Who
Didier H. Lasserre
Director
Company insider
Files Form 4 as: VP, Sales, GSI Technology.
In numbers
- Trades disclosed
- 74
- Buys
- 5
- Sells
- 11
- Bought
- $48K
- Sold
- $1.3M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 9 Aug 2007
- Last trade
- 13 Aug 2026
- Last filed
- 14 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 13 Aug 2026filed 14 Aug 2026 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 13 Aug 2026filed 14 Aug 2026 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 21 May 2026filed 22 May 2026 | GSIT GSI TechnologySemiconductors | SEC FORM 4 Code M | $150K30,000 at $4.99 | filing |
| 21 May 2026filed 22 May 2026 | GSIT GSI TechnologySemiconductors | SEC FORM 4 Sold | $279K30,000 at $9.31 | filing |
| 21 May 2026filed 22 May 2026 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code M | —30,000 at $0.00 | filing |
| 21 May 2026filed 22 May 2026 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code M | —30,000 at $0.00 | filing |
| 21 May 2026filed 22 May 2026 | GSIT GSI TechnologySemiconductors | SEC FORM 4 Code M | $150K30,000 at $4.99 | filing |
| 21 May 2026filed 22 May 2026 | GSIT GSI TechnologySemiconductors | SEC FORM 4 Sold | $279K30,000 at $9.31 | filing |
| 2 Feb 2026filed 4 Feb 2026 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 2 Feb 2026filed 4 Feb 2026 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 4 Aug 2025filed 5 Aug 2025 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 5 May 2025filed 6 May 2025 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 29 Jul 2024filed 30 Jul 2024 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 29 Jan 2024filed 30 Jan 2024 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 31 Jul 2023filed 1 Aug 2023 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 2 Dec 2022filed 2 Dec 2022 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —20,000 at $0.00 | filing |
| 1 Aug 2022filed 2 Aug 2022 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 17 May 2022filed 18 May 2022 | GSIT GSI TechnologySemiconductors | SEC FORM 4 Bought | $155 at $3.02 | filing |
| 17 May 2022filed 18 May 2022 | GSIT GSI TechnologySemiconductors | SEC FORM 4 Bought | $15K4,995 at $3.03 | filing |
| 2 Aug 2021filed 3 Aug 2021 | GSIT GSI Technologyoption or derivative · Semiconductors | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
News
Financial Review: GSI Technology (NASDAQ:GSIT) & Amtech Systems (NASDAQ:ASYS)GSIT · tickerreport.com · 15 Oct 2026
0 headlines in the last 90 days name Didier H. Lasserre; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.