Sec Form 4 Filing - MCFARLAND KATHARINA G. @ Transphorm, Inc. - 2024-06-20

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person MCFARLAND KATHARINA G. 2. Issuer Name and Ticker or Trading Symbol Transphorm, Inc. [ TGAN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O TRANSPHORM, INC., 75 CASTILIAN DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 06/20/2024 (Street) GOLETA, CA93117 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 06/20/2024 D( 1 ) 81,323 D 0 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (right to buy) $ 6.5 06/20/2024 D( 1 ) 55,000 ( 4 ) 02/23/2031 Common Stock 55,000 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other MCFARLAND KATHARINA G. C/O TRANSPHORM, INC. 75 CASTILIAN DRIVE GOLETA, CA93117 X Signatures /s/ Cameron McAulay, Attorney-in-Fact 06/20/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated January 10, 2024, by and among Transphorm, Inc. (the "Issuer"), Renesas Electronics America Inc. ("Parent"), Travis Merger Sub, Inc., a wholly owned subsidiary of Parent ("Merger Sub"), and Renesas Electronics Corporation, Merger Sub merged with and into the Issuer (the "Merger"), with Issuer surviving the Merger and becoming a wholly owned subsidiary of Parent. ( 2 )At the effective time of the Merger, outstanding shares were automatically converted solely into the right to receive an amount in cash, without interest, equal to $5.10 per share (the "Per Share Price"), subject to the terms and conditions of the Merger Agreement. ( 3 )Certain of these securities are represented by Restricted Stock Units ("RSUs"). Vested RSUs (taking into account any applicable vesting acceleration in connection with the Merger) were cancelled and converted into the right to receive an amount in cash equal to, for each share of Common Stock subject to such vested RSUs, the Per Share Price. ( 4 )At the effective time of the Merger, this stock option had an exercise price per share that was greater than the Per Share Price and, pursuant to the terms of the Merger Agreement, was cancelled for no consideration or payment.

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