As of September 12, 2026, the three largest insider holders of GSIT are Lee-Lean Shu (Pres., Ceo And Chairman, 2.51Mn shares), Lee-Lean Shu (Pres., Ceo And Chairman, 1.98Mn shares), Robert Yau (Secretary, 923.61K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Robert Yau | Secretary | 0 | 923,614 | 923,614 | 29.5% | 16 May, 2024 |
| 2 | Bor-Tay Wu | Vp, Taiwan Operations | 912,500 | 0 | 912,500 | 29.2% | 03 Jun, 2026 |
| 3 | Lee-Lean Shu | Pres., Ceo And Chairman | 0 | 530,939 | 530,939 | 17.0% | 14 May, 2026 |
| 4 | Didier Lasserre | Vp, Sales | 310,907 | 0 | 310,907 | 9.9% | 22 May, 2026 |
| 5 | Ping Tak Wu | Vp, U.S. Operations | 148,441 | 0 | 148,441 | 4.7% | 27 May, 2026 |
| 6 | Hong-Po Hsieh | Director | 76,560 | 0 | 76,560 | 2.4% | 04 Aug, 2026 |
| 7 | Douglas Schirle | Cfo | 69,046 | 0 | 69,046 | 2.2% | 14 May, 2026 |
| 8 | Elizabeth Cholawsky | Director | 61,867 | 0 | 61,867 | 2.0% | 16 Jul, 2026 |
| 9 | Ruey-Lin Lu | Director | 56,500 | 0 | 56,500 | 1.8% | 03 Nov, 2025 |
| 10 | Avidan Akerib | Vp, Associative Computing | 23,307 | 0 | 23,307 | 0.7% | 13 May, 2026 |
| 11 | Patrick T Chuang | Senior Vp, Memory Design | 15,166 | 0 | 15,166 | 0.5% | 03 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 13 Aug, 2026 | Patrick T. Chuang | Senior Vp, Memory Design | Acquired A | 40,000 | $0.00 | $0 | 40,000 | Direct |
| 13 Aug, 2026 | Didier H. Lasserre | Director | Acquired A | 40,000 | $0.00 | $0 | 40,000 | Direct |
| 13 Aug, 2026 | Douglas M. Schirle | Cfo | Acquired A | 40,000 | $0.00 | $0 | 40,000 | Direct |
| 13 Aug, 2026 | Lee-Lean Shu | Pres., Ceo And Chairman | Acquired A | 100,000 | $0.00 | $0 | 100,000 | Direct |
| 13 Aug, 2026 | Ping Tak Wu | Vp, U.S. Operations | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 13 Aug, 2026 | Lee-Lean Shu | Pres., Ceo And Chairman | Acquired A | 100,000 | $0.00 | $0 | 100,000 | Direct |
| 05 Aug, 2026 | Lee-Lean Shu | Pres., Ceo And Chairman | Disposed D | 100,000 | $0.00 | $0 | 50,000 | Direct |
| 03 Aug, 2026 | Hong-Po Hsieh | Director | Acquired M | 28,074 | $1.87 | $52.50K | 49,074 | Direct |
| 03 Aug, 2026 | Hong-Po Hsieh | Director | Acquired M | 27,486 | $1.91 | $52.50K | 76,560 | Direct |
| 03 Aug, 2026 | Hong-Po Hsieh | Director | Disposed M | 28,074 | $0.00 | $0 | 0 | Direct |
| 03 Aug, 2026 | Hong-Po Hsieh | Director | Disposed M | 27,486 | $0.00 | $0 | 0 | Direct |
| 15 Jul, 2026 | Elizabeth Cholawsky | Director | Acquired M | 28,342 | $1.87 | $53.00K | 29,692 | Direct |
| 15 Jul, 2026 | Elizabeth Cholawsky | Director | Acquired M | 31,675 | $1.91 | $60.50K | 61,367 | Direct |
| 15 Jul, 2026 | Elizabeth Cholawsky | Director | Acquired M | 500 | $3.69 | $1.85K | 61,867 | Direct |
| 15 Jul, 2026 | Elizabeth Cholawsky | Director | Disposed M | 28,342 | $0.00 | $0 | 0 | Direct |
| 15 Jul, 2026 | Elizabeth Cholawsky | Director | Disposed M | 31,675 | $0.00 | $0 | 0 | Direct |
| 15 Jul, 2026 | Elizabeth Cholawsky | Director | Disposed M | 500 | $0.00 | $0 | 15,895 | Direct |
| 01 Jun, 2026 | Bor-Tay Wu | Vp, Taiwan Operations | Acquired M | 20,000 | $3.68 | $73.60K | 932,500 | Direct |
| 01 Jun, 2026 | Patrick T Chuang | Senior Vp, Memory Design | Acquired M | 40,000 | $7.26 | $290.40K | 55,166 | Direct |
| 01 Jun, 2026 | Patrick T Chuang | Senior Vp, Memory Design | Disposed S | 40,000 | $11.31 | $452.58K | 15,166 | Direct |