X0306 4 2021-11-19 0001126741 GSI TECHNOLOGY INC GSIT 0001394411 Yau Robert GSI TECHNOLOGY, INC. 1213 ELKO DRIVE SUNNYVALE CA 94089 1 1 0 0 VP, Engin., Sect. & Director Common Stock 1017439 I Self as Co-Trustee for Yau Revocable Trust Common Stock 2021-11-19 4 S 0 28324 5.9319 D 989115 I Self as Co-Trustee for Yau Revocable Trust Common Stock 2021-11-22 4 S 0 11676 6.0271 D 977439 I Self as Co-Trustee for Yau Revocable Trust The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.90 to $6.02, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.92 to $6.20, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. /s/ Douglas Schirle, Attorney-in-Fact 2021-11-22