16-Year-Old Child of Billionaire Slack Cofounder Reported Missing After 'Running Away’

Mint Butterfield was last seen on Sunday, April 21 in Bolinas, California according to the Marin County Sheriff's Office

The 16-year-old child of the billionaire cofounder of Slack has been reported missing after "running away."

The Marin County Sheriff's Office notified the public about the disappearance of Mint Butterfield on Nextdoor and stated that they had been reported missing on Monday, April 22 at 8:30 a.m.

Police added that Butterfield was last seen on Sunday, April 21 at approximately 10 p.m. in Bolinas, California.

They are the child of Slack cofounder and former CEO Stewart Butterfield according to NBC Bay Area, The San Francisco Standard and the San Francisco Chronicle. He is currently estimated to have a personal wealth of $1.6 billion, according to Forbes.

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Authorities shared a photo of the teen and noted that Mint is 5’0 tall, weighs 100 lbs. and has “brown/reddish curly hair” and pierced eyebrows. They added that Mint had last been seen wearing a “black sweatshirt, flannel pajama pants, and black boots” and may have had a “gray suitcase.”

“It is believed Mint headed to the San Francisco area after running away,” Marin County Sheriff Deputy K. Walther shared in the post.

The Marin County Sheriff's Office did not immediately respond to PEOPLE’s request for comment on the case. However, Sgt. Adam Schermerhorn told the San Francisco Chronicle that the sheriff’s office was “working with SFPD detectives to try and locate” the teen.

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Officials told the San Francisco Standard that the teen has a history of substance abuse and has been previously seen in the Tenderloin area — which is located about 30 miles from where they were last seen in Bolinas. 

On April 23, San Francisco Board of Supervisors member Matt Dorsey, posted on X (formerly known as Twitter) that Mint had been believed to be “in or around the Tenderloin neighborhood here in San Francisco.” He asked that anyone who may have seen the teen to contact police.

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Mint’s mother, Caterina Fake, who lives in San Francisco reported her child’s disappearance on April 22, according to The San Francisco Standard and San Francisco Chronicle. She and Butterfield previously co-founded Flickr in 2004 and sold it to Yahoo in 2005, and they divorced in 2008, per The San Francisco Standard.

As for Butterfield, after co-founding Slack, the company was eventually sold to Salesforce in 2021 for $28 billion. He left the company in 2022, per the Standard.

If you or someone you know is struggling with substance abuse, please contact the SAMHSA helpline at 1-800-662-HELP.

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