Thus, Musk currently has a total of 9 children, including 5 with his first wife Justine Musk and 2 with singer Claire Boucher (stage name Grimes). According to court records, Musk and Zilis welcomed the twins in 2021. Zilis is a leader at Neuralink.

Records show Musk and Zilis filed a request to change the names of the two children to “have the father’s surname and include the mother’s surname in the middle name.” The application was filed in Austin, Texas – where the two children were born – and has been approved. Zilis reportedly gave birth in November 2021, a few weeks before Musk and Boucher welcomed their second child via surrogacy.
Zilis, 36, was born in Canada and studied economics and philosophy at Yale University before working at IBM and Bloomberg Beta. She is considered an up-and-coming star in the artificial intelligence field and has appeared on Forbes 30 Under 30, LinkedIn 35 Under 35.
According to her LinkedIn profile, Zilis holds the position of Director of Operations and Special Projects at Neuralink. She started working at the company in May 2017.
Musk owns and operates several companies such as Neuralink, electric vehicle manufacturer Tesla, space travel company SpaceX, and tunneling company Boring Company. Recently, he agreed to purchase Twitter for $44 billion.
In the past, Musk has advocated for increasing the birth rate and stated that “civilization will collapse” if people do not have more children. “What I mean is, I will do my part, haha,” he wrote on Twitter.
In April, one of Musk’s daughters filed a petition to change her surname and is officially no longer related to Musk legally.