A little blue bird has turned a few select people into cash cows.
The strong start on Wall Street meant even more riches for Twitter's top executives and major investors.
"A lot of people became paper gazillionaires today," said Michael Pachter, a research analyst at Wedbush Securities.
Among them: Twitter cofounder
Fellow cofounder and Chairman Jack Dorsey — also the cofounder and chief executive of mobile payments company
Chief Executive Dick Costolo, with a 1.4% stake, is looking at $344.6 million.
Several outside investors also made out handsomely.
Investment firm Rizvi Traverse owns 85.2 million shares, or 15.6% of the company, that are now valued at $3.82 billion.
Other major holders include venture capital firms Spark Capital, Benchmark Capital and Union Square Ventures, which each own more than 5% in stock, according to a regulatory filing with the Securities and Exchange Commission.
Twitter sold 70 million shares at $26, raising $1.82 billion, making it the largest IPO from a U.S. technology company since Facebook last year.
Tech analysts are now waiting to see what happens when the lockup period, which prevents executive officers and directors from trading their shares immediately, expires in 180 days. Beginning as early as Feb. 15, up to 9.9 million shares of common stock held by employees who are not executive officers may be eligible for sale in the public market, Twitter said in the regulatory filing.
"I'm curious to see how many insiders sell stock," Pachter said. "Every VC that invested in this firm did so to make money, so I don't begrudge them for selling stock."