X0306 4 2021-02-23 0 0001715768 Transphorm, Inc. TGAN 0001828021 Humphreys Michael Julian C/O TRANSPHORM, INC. 75 CASTILIAN DRIVE GOLETA CA 93117 1 0 0 0 Common Stock 2021-02-23 4 A 0 35000 0.00 A 35000 D Stock Option (right to buy) 6.50 2021-02-23 4 A 0 55000 0.00 A 2021-10-14 2031-02-23 Common Stock 55000 55000 D Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the RSUs will vest on October 14, 2021, and the remaining shares will vest in equal quarterly installments over the following three years, subject to the Reporting Person's continued service as of each such vesting date. One-fourth (1/4) of the shares subject to the option will vest on October 14, 2021, and the remaining shares will vest in equal quarterly installments over the following three years, subject to the Reporting Person's continued service as of each such vesting date. /s/ Cameron McAulay, Attorney-in-Fact 2021-02-25