X0508 4 2023-08-30 0 0001715768 Transphorm, Inc. TGAN 0001802707 Mishra Umesh C/O TRANSPHORM, INC. 75 CASTILIAN DRIVE GOLETA CA 93117 1 1 0 0 Chief Technology Officer 0 Common Stock 2023-08-30 4 A 0 172800 0.00 A 364724 D Stock Option (right to buy) 2.80 2023-08-30 4 A 0 115200 0.00 A 2024-09-01 2033-08-30 Common Stock 115200 115200 D Each share is represented by a Restricted Stock Unit ("RSU"). One twelfth (1/12) of the RSUs will vest on September 1, 2024, and the remaining RSUs vest in equal quarterly installments over the following 11 quarters, 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 September 1, 2024, and the remaining shares vest in equal monthly installments over the following 36 months, subject to the Reporting Person's continued service as of each such vesting date. /s/ Cameron McAulay, Attorney-in-Fact 2023-09-01