Elon Musk fathered twins with a top executive at one of his companies last year, according to court documents obtained by Insider.

The documents in question show that, in 2021, the SpaceX CEO welcomed twins with Shivon Zilis - an executive at his artificial intelligence startup, Neuralink. If true, this would mean that the billionaire has nine known children.

In April, Zilis and the 51-year-old Tesla founder filed a petition to change the two infants' names to "have their father's last name and contain their mother's last name as part of their middle name," the outlet reports.

Zilis reportedly gave birth in November 2021, meaning the twins were born just before Musk and his ex-partner Grimes welcomed a child via surrogate in December.

The Neuralink exec is currently employed as director of operations and special projects for the company, of which Musk is co-CEO.

This news comes after 18-year-old Vivian Jenna, one of the eldest children of the world's wealthiest man, was granted permission to change her name to Vivian Jenna Wilson and remove her father's surname, Musk.

In court documents obtained by TMZ, she said she "no longer live[s] with or wish[es] to be related to my biological father in any way, shape or form."

In March, Grimes revealed she and Musk had welcomed a second child together - a baby girl named Exa Dark Sideræl.

During an interview with Vanity Fair, Grimes was asked whether the two of them were still "together".

Grimes said at the time: "There’s no real word for it … I would probably refer to him as my boyfriend, but we’re very fluid. We live in separate houses. We’re best friends. We see each other all the time … We just have our own thing going on, and I don’t expect other people to understand it."

The 'Oblivion' singer went on to say that they had planned to have more children. She said: "We’ve always wanted at least three or four."

Grimes later posted a string of tweets, saying that they had called it quits, adding that Musk was still "the love of my life."

She wrote: "Me and E have broken up *again* since the writing of this article haha, but he’s my best friend and the love of my life, and my life and art are forever dedicated to The Mission now, I think Devin wrote that part of the story rly well. [sic]"

Featured image credit: Apex MediaWire / Alamy

Elon Musk has confirmed that he has welcomed another child, and the infant's name has also been released.

The child is the fourth shared by Musk and Neuralink executive Shivon Zilis, bringing the X owner's total to 13 confirmed kids.

Of course, if influencer Ashley St. Clair's paternal claims against Musk are true, it would mean that the tech billionaire has now fathered 14 children in total.

Zilis, 39, has been a close associate of Musk in both personal and professional capacities.

She was frequently present at Mar-a-Lago last year when Musk operated from the Florida estate following the presidential election.

She also accompanied the SpaceX CEO to President Donald Trump’s inauguration and was seen alongside him earlier this month during a meeting with Indian Prime Minister Narendra Modi.

Zilis publicly announced the birth for the first time on Friday via X, revealing the name of their latest addition.

“Discussed with Elon and, in light of beautiful Arcadia’s birthday, we felt it was better to also just share directly about our wonderful and incredible son Seldon Lycurgus. Built like a juggernaut, with a solid heart of gold. Love him so much,” Zilis wrote, adding a heart emoji.

Musk responded with a heart emoji of his own.

Details regarding Seldon Lycurgus' birth date remain undisclosed.

Zilis also used the post to confirm the name of their third child, Arcadia, for the first time. However, Arcadia's exact birth date and gender are still unknown.

Maye Musk, the billionaire’s mother, has previously expressed support for Zilis on X.

This comes amid a legal battle between Musk and conservative influencer St. Clair, who has claimed the billionaire is the father of her six-month-old son.

St. Clair is currently suing Musk for paternity and custody in a Manhattan court.

As part of her paternity lawsuit, St. Clair has submitted multiple exhibits to the Manhattan Supreme Court, including alleged private Signal messages with Musk that she claims confirm their relationship.

One exchange allegedly shows Musk—identified as “EM”—telling St. Clair: “I want to knock you up again.”

In another exhibit, St. Clair is seen requesting an in-person meeting, citing difficulties communicating through intermediaries. Musk’s alleged response: “Hmm ok. Well, I do have a legion of kids to make.”

A key piece of evidence in the court filings includes a photo of Musk holding the child, cradling the baby in one hand while using his phone in the other.

In her lawsuit, St. Clair alleges that Musk first met their child on September 21, 2024, in New York City, spending two hours with him.

He reportedly saw the child again the following day for one hour and then for the final time on Nov. 30 in Austin, Texas, for 30 minutes.

St. Clair claims she and Musk began a “romantic relationship” in May 2023 and conceived the child in January 2024.

Musk, who has not publicly acknowledged St. Clair’s child as his own, responded to the allegations with a brief comment on X: “Whoa.”

If the allegations are true, then Musk would have 14 children with four different women.

His known children include:

• Twins Vivian and Griffin, and triplets Kai, Saxon, and Damian with his first wife, Justine Wilson (divorced in 2008). Musk and Wilson also welcomed their son Nevada Alexander in 2002. However, at 10 weeks old, he sadly passed away due to SIDs.
• Three children with musician Grimes: X Æ A-Xii (X), Exa Dark Sideræl, and Techno Mechanicus.
• Twins Strider and Azure, son Arcadia, and the newly announced Seldon Lycurgus with Neuralink executive Shivon Zilis

We'll have to wait and see if Musk will publicly confirm and acknowledge St. Clair's child as his own.

Featured image credit: Andrew Harnik / Getty

Elon Musk has been making the headlines with the growth of his family recently, and his estranged daughter has reacted to the news.

Musk, 53, recently acknowledged that he has welcomed baby number 13 with Neuralink executive Shivon Zilis.

But this number could potentially be 14 if influencer Ashley St. Clair's paternal claims are confirmed.

St. Clair, 26, made waves recently by alleging that Musk is the father of her child, born in secret in September 2024.

Now, she is seeking to establish paternity and obtain sole custody through legal proceedings in Manhattan.

Court filings include what she claims are private Signal messages from Musk, where he allegedly told her: "I want to knock you up again."

In another message, Musk - identified as "EM" - allegedly responds to her request for an in-person meeting with: "Hmm ok. Well, I do have a legion of kids to make."

As evidence, St. Clair has submitted a photo of Musk holding the child, as well as details of his visits, stating he first met their son on September 21, 2024, in New York City for two hours.

She alleges he saw the child again the next day for an hour and then once more in Austin, Texas, on November 30, but only for 30 minutes.

Musk has not publicly confirmed the child as his own, offering only a brief reaction on X: "Whoa."

St. Clair, frustrated by Musk’s online behavior, fired back, demanding direct communication.

"Elon, we have been trying to communicate for the past several days and you have not responded. When are you going to reply to us instead of publicly responding to smears from an individual who just posted photos of me in underwear at 15 years old?" she wrote.

Her representative insisted to PEOPLE that the case is not financially motivated. "This has never been about money for Ashley," they stated. "This is about protecting the best interests of Ashley and Elon’s child from a man who can’t be counted on to even communicate, much less act consistently in the role of a father."

Meanwhile, Musk’s estranged daughter, Vivian Wilson, has taken to social media to react to the news of yet another sibling.

Wilson, who legally changed her name after coming out as transgender in 2022, stitched together a TikTok video referencing her repeated discoveries of new half-siblings.

"Wow, if I had a nickel for every time I found out I had half-siblings through Reddit, I’d have two nickels … which isn’t a lot, but it’s weird that it’s happened twice, right," she previously joked.

Now, following the revelation of Musk’s latest confirmed child, Wilson posted another TikTok with a close-up of her eye, writing: "This is already outdated nevermind." In the caption, she added: "Technically it was through Threads this time though."

Wilson further commented: "For clarity’s sake, I have found out through specifically Reddit twice- but through the internet in general 7 times."

Musk's known children include:

• Twins Vivian and Griffin, and triplets Kai, Saxon, and Damian with his first wife, Justine Wilson (divorced in 2008).
• Musk and Wilson also welcomed their son Nevada Alexander in 2002. However, at 10 weeks old, he sadly passed away due to SIDs.
• Three children with musician Grimes: X Æ A-Xii (X), Exa Dark Sideræl, and Techno Mechanicus.
• Twins Strider and Azure, son Arcadia, and the newly announced Seldon Lycurgus.

Featured image credit: Andrew Harnik / Getty