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Slack co-founder Stewart Butterfield’s kid reported missing, believed to be in San Francisco’s notorious Tenderloin district

By
Richard Pollina
Published April 25, 2024
Updated April 25, 2024, 7:23 a.m. ET
Slack co-founder’s kid reported missing, believed to be in notorious San Francisco area
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The 16-year-old child of billionaire Slack co-founder Stewart Butterfield vanished and is feared to be in one of San Francisco’s most notoriously dangerous neighborhoods.

Mint Butterfield, 16, was last seen at 10 p.m. Sunday in Bolinas, Calif., according to Marin County Sheriff’s Office spokesperson Deputy Jose Suarez.

Butterfield’s mother, Flickr founder Caterina Fake, reported the teen missing on Monday, according to the San Francisco Standard.

Mint Butterfield has been missing since Sunday and police fear she may be located in a dangerous San Francisco neighborhood.
Mint Butterfield has been missing since Sunday and police fear she may be in a dangerous San Francisco neighborhood. Marin County Sheriff’s Office

She had been living with Fake at the time of her disappearance and was attending a private boarding school in the Napa area, according to the sheriff’s office. 

“Mint was last seen wearing a black sweatshirt, flannel pajama pants, and black boots,” sheriff’s officials said. “They were also possibly carrying a gray suitcase,” Suarez wrote in a statement.

However, the 5-foot-tall teen with curly, brown-red hair and pierced eyebrows is believed to have run away to the Tenderloin, which is known for its violent crimes, rampant homelessness and open-air drug market in downtown San Francisco.

Mint Butterfield allegedly has a history of substance abuse and has been known to frequent the Tenderloin, the outlet added.

“Please contact Marin County Sheriff’s Office with any information on their whereabouts,” Suarez wrote.

Homeless people are seen on streets of the Tenderloin district in San Francisco, California, United States on October 30, 2021.
Homeless people on the streets of the Tenderloin district in San Francisco, California, on Oct. 30, 2021. Anadolu Agency via Getty Images
people all walk to work and hang out in the Tenderloin neighborhood of San Francisco, California Wednesday January 26, 2022.
People walk to work and hang out in the Tenderloin neighborhood of San Francisco, California, on January 26, 2022. The Washington Post via Getty Images

Stewart Butterfield co-founded messaging app Slack in 2013 but left the company after Salesforce acquired the platform for $28 billion in 2021.

According to Forbes, his net worth is around $1.6 billion.

Fake founded the imaging service Flickr with Butterfield in 2004 and sold the company to Yahoo! in 2005 for around $30 million.

co-founder and CEO Stewart Butterfield poses outside the New York Stock Exchange (NYSE) during thew company's IPO in New York, U.S. June 20, 2019.
Co-founder and CEO Stewart Butterfield poses outside the New York Stock Exchange during the company’s IPO in New York on June 20, 2019. REUTERS
Caterina Fake attends the Wired business conference in partnership with MDC Partners at The Morgan Library & Museum on June 14, 2010 in New York City.
Caterina Fake attends the Wired business conference in partnership with MDC Partners at The Morgan Library & Museum on June 14, 2010, in New York City. Larry Busacca

Fake and Stewart Butterfield married in 2001 but divorced in 2007 — the same year their daughter was born.

Mint Butterfield is the couple’s only child.

Stewart Butterfield remarried Jennifer Rubio, the co-founder and CEO of luggage manufacturer and retailer Away, in 2020.

In 2021, the couple — who share two children together — sold their San Francisco home following his departure from Slack and relocated to a luxurious $25 million mansion in Aspen, Colo.’s Five Trees neighborhood, according to the Real Deal.

Mint Butterfield allegedly has a history of substance abuse and has been known to frequent Tenderloin in the past
Mint Butterfield allegedly has a history of substance abuse and has been known to frequent the Tenderloin. Marin County Sheriff’s Office

The 10,600-square-foot home is located on a 5-acre estate and features amenities like a 500-bottle wine cellar and a tasting room, six bedrooms and a three-car garage.

Rubio and Stewart Butterfield also own a massive, $32.2 million mansion in Southampton, New York.

The 17,000-square-foot, two-gated-driveway home features 11 bedrooms, 12 bathrooms and an all-weather tennis court and is located near the popular Cooper’s Beach in Southampton.

They also own two spots in the ritziest neighborhoods in New York City: a $27.27 million, 8,000-square-foot West Village townhouse they bought in 2021 and a $20 million Tribeca townhouse with its own private skybridge overlooking the city in 2022, according to the outlet.