(Bloomberg) — Snowflake Inc.’s initial public offering isn’t just creating new fortunes, it’s adding to the wallets of some of Silicon Valley’s biggest names.Iconiq Capital, a multifamily office whose clients include Facebook Inc.’s Mark Zuckerberg, LinkedIn Corp.’s Reid Hoffman and Twitter Inc.’s Jack Dorsey, took part in multiple Snowflake funding rounds beginning in 2017. Its 12% stake in the company, purchased for $245 million, was worth more than $4 billion at the initial offering price of $120. By the end of Wednesday, the same stake was worth a staggering $8.6 billion.Read more: Snowflake soars into tech big leagues with $73 billion valuationShares of the cloud-computing company surged as high as $319 in New York trading before dropping back to close at $253.93. That made it worth $70 billion, about as much as Goldman Sachs Group Inc. and almost six times the $12.4 billion it was valued at in a February fundraising round.Cloud computing “is a secular trend right now,” said Bloomberg Intelligence analyst Mandeep Singh. “We have already seen Zoom, DocuSign and Datadog do well this year. Investors understand the cloud business model well and that makes a high-growth company like Snowflake attractive.”The San Mateo, California-based firm’s top executives also saw their wealth surge. Four of them — Frank Slootman, Bob Muglia, Michael Scarpelli and Benoit Dageville — now own stakes worth a combined $8 billion.Only one of them, Dageville, was a founder. His stake is smaller than Slootman’s, who joined as chief executive officer from ServiceNow Inc. last year.Concurrent with the IPO, former CEO Muglia sold half of his 8.1 million Snowflake shares to Berkshire Hathaway Inc., which is also investing an additional $250 million at the IPO price. Such deals aren’t typically part of Warren Buffett’s play book, although in 2018 Berkshire invested in the initial offering of Brazilian fintech StoneCo Ltd.Buffett’s move boosted the already sky-high institutional interest in the cloud-computing firm, Singh said. It “definitely validates the attractiveness of Snowflake’s IPO,” he said.So far it has been a winning bet for Buffett, with the value of Berkshire’s investment more than doubling by the end of the day.(Updates value of Iconiq’s stake in second paragraph and top executives’ in fifth.)For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2020 Bloomberg L.P.