Weili Dai Net Worth

Weili Dai has an estimated net worth of $5 billion, according to Forbes Real-Time Billionaires, Weili Dai profile (figures as of October 20, 2026). That is up from $1 billion in 2007.

Weili Dai is a semiconductor entrepreneur known for cofounding Marvell Technology in 1995. She helped build the company into a major chip business and served in several leadership roles, including president. At Marvell, she worked on partnerships and helped bring the company’s technology into products across multiple markets. Before that, she worked in software development and project management at Canon Research Center America. She later studied computer science at UC Berkeley.

Most of Dai’s wealth comes from semiconductors. Forbes says her fortune is tied to that industry, and Marvell was the main company behind it. After leaving Marvell in 2016 during an internal accounting investigation that found no evidence of fraud, she kept building new ventures. She cofounded AI startup MeetKai in 2018 and semiconductor packaging company Silicon Box in 2021. Forbes put her net worth at $5 billion on October 20, 2026.

How Weili Dai built her fortune

Dai made her name in chips. In 1995, she cofounded Marvell Technology with her husband, Sehat Sutardja. She later held several operating and management jobs there, including chief operating officer, executive vice president, general manager of the Communications Business Group, director, corporate secretary, and president. Her work included strategic partnerships and marketing Marvell technology for use in products across different markets, which helped turn the company into the center of her wealth.

Her money story did not end with Marvell. After she and Sutardja left the company in 2016, she moved into new investments and startups. Forbes says she has been investing in real estate and technology since 2017. She also cofounded 5 other companies, including MeetKai in 2018 and Silicon Box in 2021. MeetKai works in AI and digital media technology, while Silicon Box focuses on semiconductor packaging.

What Forbes says about her net worth

Forbes tracks Dai in the technology industry and describes her as self-made. Its estimate reached $3.3 billion on the 2026 World’s Billionaires List. Later that year, Forbes' real-time tracker put her at $5 billion as of October 20, 2026. That increase came after decades in semiconductors and after she expanded into newer businesses tied to AI, chip packaging, real estate, and other technology investments.

The core theme in Dai’s money story is company building. Marvell gave her a long-running base in semiconductors, and her later projects kept her close to fast-moving parts of tech. Silicon Box put her into chiplet packaging, an area tied to artificial intelligence demand, while MeetKai added an AI startup to her portfolio. Forbes still links her wealth mainly to semiconductors, even as her investing spread into real estate and other technology deals.