Elon Musk

Photographer: Andrew Harrer/Bloomberg

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Tesla Inc.s Elon Musk and his finance chief have added tongue-in-cheek titles while another one of the companys top executives changes roles.

Musk, the carmakers chief executive officer, is now also the Technoking of Tesla, and Chief Financial Officer Zach Kirkhorn has added the title Master of Coin, according to a regulatory filing. Both will maintain the positions of CEO and CFO.

Zach Kirkhorn

Source: Tesla Inc.

In a separate filing, the company said Jerome Guillen, whos been president of automotive since September 2018, transitioned last week to president of Tesla heavy trucking. Musk first showed a Semi prototype in

December 2017 and said at that time Tesla would start production in 2019. Its now planning to start deliveries

by the end of this year.

As Tesla prepares to enter the critical heavy-trucks market for the first time, Mr. Guillen will now leverage his extensive background in this industry to focus on and lead all aspects of the Tesla Semi program, including the related charging and servicing networks, the company said.

Tesla used to have a chief technology officer in co-founder J.B. Straubel, but he

left the company in 2019. Kirkhorns Master of Coin title may be a reference to the companys purchase of Bitcoin disclosed

last month.

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