TransphormHighest Performance, Highest Reliability GaN


Transphorm is a global semiconductor company and a pioneering technology leader in the wide-bandgap GaN power electronics devices for high-voltage power conversion applications. Our products target power applications from 30 watt to 300 watt applications (power adapters and chargers) to multi-kilowatt applications (data center/communication infrastructure, industrial automotive chargers/converters). Our GaN on silicon FET products stand out in the industry due to their capability to withstand much higher voltage, starting at a 650 Volt rating and reaching up to 900 Volts and with products up to 1,200 Volts currently under development.

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Financial Info

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SEC Filings

Filing Date Form Description Filing Group View
07/28/2020 Prospectus 424B4 Other
07/28/2020 Correspondence Other
06/08/2020 14C Other
06/01/2020 S-8 Other
06/01/2020 S-1 Other
05/31/2020 8-K Report of unscheduled material events or corporate event Current Reports
05/13/2020 10-K/Q Annual Filings
04/08/2020 8-K Report of unscheduled material events or corporate event Current Reports
03/30/2020 8-K/A Current Reports
03/25/2020 8-K/A Amendment to a previously filed 8-K Current Reports
03/13/2020 13D Current Reports
02/27/2020 SEC Form D Other
02/27/2020 SEC Form D Other
02/25/2020 13SG Current Reports
02/20/2020 13SGA Current Reports
02/18/2020 13SGA Current Reports
02/18/2020 13G Current Reports
02/14/2020 8-K Report of unscheduled material events or corporate event Current Reports

Analyst Coverage

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Investor FAQs

What is Transphorm, Inc.’s primary business?

Transphorm is a global semiconductor company, leading the GaN revolution with the highest performance, highest reliability GaN devices for high voltage power conversion applications. Our innovations are moving power electronics beyond the limitations of silicon to achieve over 99% efficiency, 40% more power density and 20% lower system cost. Transphorm’s unique vertically-integrated innovation model leverages one of the industry’s most experienced GaN engineering teams (with over 300 years of combined experience) at every development stage, and our best-in-class technology is underpinned by one of the GaN power industry’s largest IP portfolios with over 1,000 patents.

What is Transphorm’s ticker symbol and where is the stock traded?

Currently there is not any established public trading market for any of our securities. In connection with our S-1 offering publicly filed on June 2, 2020, we have arranged for a registered broker-dealer to apply to have our common stock quoted on the OTCQB or another over-the-counter system, but cannot assure you our stock will become eligible for trading.

When was the company founded and in which state is it incorporated?

Transphorm was founded by Umesh Mishra, Ph.D. and Primit Parikh, Ph.D. and who currently serve as CTO and COO, respectively. Transphorm Technology was originally incorporated as Transphorm, Inc. in the State of Delaware on February 22, 2007.

On February 12, 2020, our wholly-owned subsidiary, Peninsula Acquisition Sub, Inc., a corporation formed in the State of Delaware (“Acquisition Sub”), merged with and into Transphorm Technology, Inc., or Transphorm Technology (formerly known as Transphorm, Inc.), the corporate existence of Acquisition Sub ceased, and Transphorm Technology became our wholly-owned subsidiary (such transaction, the “Merger”). As a result of the Merger, we acquired the business of Transphorm Technology. The Merger was effective as of February 12, 2020, upon the filing of a Certificate of Merger with the Secretary of State of the State of Delaware. Immediately after completion of the Merger, we adopted Transphorm Technology’s former company name, “Transphorm, Inc.”, as our company name.

Where are Transphorm’s corporate headquarters?

Our principal executive offices are located at 75 Castilian Dr., Goleta, California 93117. Our telephone number is (805) 456-1300.

How many shares are outstanding?

The number of shares of common stock outstanding is based on an aggregate of 35,135,520 shares outstanding as of May 15, 2020. Please refer to our S-1 and subsequent filing with the SEC for more detailed information.

What is Transphorm’s fiscal year end and corresponding quarter-end and reporting dates?

Transphorm operates on a calendar year, which runs from January 1 to December 31. Our quarters end on March 31, June 30, September 30, and December 31. We will report quarterly financial results according to SEC filing requirements for an “emerging growth company” and “smaller reporting company” as defined by SEC rules.

Who is Transphorm’s Transfer Agent?

There is currently no transfer agent for our common stock. In connection with applying to have our common stock quoted on OTCQB, we intend to appoint a transfer agent and registrar for our common stock.

Whom do I contact to obtain a stock certificate or for information about the shares I own?

Existing holders of Transphorm’s common stock can access stock certificates by logging in or setting up an account with Carta (

Whom do I notify if I have an address change?

If you own shares through a brokerage firm, you should contact the brokerage firm directly to change your account address. If you’re a registered shareholder and own shares directly, please contact Transphorm’s transfer agent listed above.

Who is Transphorm’s independent registered public accounting firm?

Marcum LLP has served as the company’s auditor since 2019.

Who is Transphorm’s outside Investor Relations firm?

How can I get an Investor Relations package?

Transphorm encourages investors to download the Company’s presentation, press releases, SEC filings, and other corporate information directly from the Transphorm’s website, under “Investor Relations.” To obtain specific information by mail, please contact .

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