Sign up now for FREE unlimited access to Reuters.com Register July 6 (Reuters) – Tesla Inc ( TSLA.O ) Chief Executive Elon Musk and Shivon Zilis, a top executive at brain chip startup Neuralink, welcomed twins in November 2021, Business Insider reported on Wednesday. In April, Musk and Zillis filed to change the twins’ names to “have their father’s last name” and include their mother’s last name as part of their middle name, the report said, citing court documents. A month later, a Texas judge approved the petition, the report added. Sign up now for FREE unlimited access to Reuters.com Register A court summary on the legal research service Westlaw showed that a judge signed an “Order Changing the Names of Multiple Children” on May 11 after Musk and Zilis filed for a name change on April 25 of this year. The report said, without citing any sources, that Zillis was recently added as one of the people Musk could tap to run Twitter Inc ( TWTR.N ) after it was acquired in a $44 billion deal. Zilis, 36, is identified on her LinkedIn profile as director of operations and special projects at Neuralink, which is co-founded and chaired by Musk, 51. She started working at the company in May 2017, the same month she was named project director of artificial intelligence at Tesla, where she worked until 2019. She also serves as a board member at artificial intelligence research firm OpenAI, which Musk co-founded, according to her LinkedIn profile. News of the twins’ arrival brings Musk’s total number of children to nine. Musk has two children with Canadian singer Grimes and five other children with his ex-wife, Canadian author Justine Wilson. Musk and Grimes welcomed their second child via surrogate in December. The billionaire said he and Grimes were “half-divorced,” according to a Page Six report in September of last year. Musk and Gillis did not immediately respond to Reuters’ request for comment. Sign up now for FREE unlimited access to Reuters.com Register Reporting by Akriti Sharma in Bengaluru and Hyunjoo Jin in San Francisco and Mike Scarcella. Edited by Sandra Maler Our Standards: The Thomson Reuters Trust Principles.