Interest in Marvell surged earlier this month after Huang, chief executive of the world's most valuable company Nvidia, praised the semiconductor firm during an onstage appearance with Marvell CEO Matthew Murphy at Computex in Taipei.

Huang, whose company recently committed $2 billion to Marvell, said its networking and connectivity chips are critical to modern data centers, where thousands of processors must rapidly exchange data to power AI systems. His remarks helped trigger Marvell's biggest-ever one-day stock gain on June 2, sending shares up more than 32%, as reported by Business Insider.

The semiconductor company has emerged as one of the biggest beneficiaries of the AI boom. Marvell's stock has surged nearly 260% since June 2025 and about 145% so far in 2026. The company, which ships more than one billion chips annually and employs about 7,500 people worldwide, reported $2.4 billion in first-quarter revenue, beating analyst expectations.

Marvell's success, along with Dai's other ventures, has propelled the 64-year-old entrepreneur into the ranks of America's wealthiest businesswomen. Forbes named her among the world's 100 most powerful women in 2015 and has included her on its annual list of America's Richest Self-Made Women since 2022. She now holds an estimated net worth of around $4.7 billion.

Weili Dai, co-founder of Marvell Technology. Photo courtesy of the Committee of 100

From Shanghai to Silicon Valley

Dai was born in Shanghai, China, to an engineer father and a nurse mother. She developed a competitive spirit early through sports, playing badminton, running, long jump and semi-professional basketball between the ages of nine and 14.

She told online news site SFGATE that basketball helped shape the qualities that would define her career. "I believe that helped me to develop the confidence, the health, the discipline, the teamwork concept and then of course the family upbringing is truly the foundation."

Her family moved to the U.S. in 1979 when she was 17. Although she spoke little English and carried a Chinese-English dictionary wherever she went, she attended Abraham Lincoln High School in San Francisco before enrolling at the University of California, Berkeley, where she studied computer science. Her two older brothers later attended the same university and went on to start technology companies of their own.

Dai described her family environment as one centered on engineering and innovation. Dai and her brothers were part of "a circle of engineers and geeks," she said in a 2021 interview. "And then I met another one in college, my husband, a man with a big passion for building things," she said in the same interview.

In 1995, Dai co-founded Marvell Technology with her husband, Sehat Sutardja, and his brother, Pantas Sutardja. The company began around her kitchen table and was initially funded with $350,000 from family members. The founders chose the name Marvell because they wanted to build what they described as "marvelous" technology products. Dai told Forbes in 2014 that the name also reflected the company's global ambitions from the outset.

"We wanted to be the marvelous company and we were very clear about in order to grow big and be successful long-term, we have to be very thoughtful of the global aspect," Dai said. "We needed to be able to scale from global and have multiple locations, not just starting in the so-called leading-edge of Silicon Valley."

Its first breakthrough product was a hard-drive read channel that could be manufactured entirely in silicon, helping the company gain a foothold in the rapidly expanding semiconductor market. Over the following years, Marvell grew into a major supplier of chips used in data storage, networking and communications. By 2011, the company held about 70% of the hard-drive silicon chip market and supplied products to technology giants including Microsoft, Cisco and Sony.

Dai oversaw business strategy, partnerships and global expansion, while her husband led technology development and accumulated more than 360 patents. "We're complementary to each other's skill set."

Reinventing herself as a serial tech founder

Dai and her husband stepped down from Marvell in 2016 following a lengthy internal accounting investigation that ultimately found no fraud, according to VentureBeat.

The departure did not slow her entrepreneurial ambitions. Over the following years, Dai built a track record of helping turn technology start-ups into successful businesses.

One of her most successful investments has been Alphawave IP Group, a London-listed semiconductor company in which she is the second-largest shareholder. Earlier this month, Qualcomm agreed to acquire the company in a cash deal valued at about $2.4 billion.

She also co-founded AI company MeetKai, semiconductor startup DreamBig Semiconductor and several other technology ventures. She is also among the founders of Singapore-based Silicon Box, an advanced chip-packaging company that achieved a $1 billion valuation following a 2024 funding round.

Other ventures she helped launch include FLC Technology Group, which focuses on next-generation computing architecture, and DreamBig Semiconductor, which develops technologies for data centers and storage acceleration. She also serves as chair of Lark Health, a company that uses AI to help prevent chronic diseases.

Dai's business success has earned widespread recognition.

In 2013, the Global Semiconductor Alliance honored Dai and her husband with the Dr. Morris Chang Exemplary Leadership Award for their role in building Marvell into a semiconductor powerhouse and their contributions to the technology industry.

Forbes named her among the world's 100 most powerful women, while Newsweek included her on its list of the "150 Women Who Shake the World." She was also featured in CNN International's "Leading Women" series and was appointed to the Committee of 100, an organization of influential Chinese Americans.

Dai attributes much of her success to a principle she calls "fair and care," a lesson she says she learned from her parents. The approach became what she described as her "secret recipe of success." "Whatever you do, you have to be fair to those around you and genuinely care, think of ways to add value," she told Authority Magazine.

"The way I engage in business with my partners is focused on how to support and help make them more successful. Of course, it's common sense that if your customer or partner is more successful, so are you! You can close an amazing deal, but they won't come back to you if your product isn't the best."

She also credited her parents with helping shape the confidence and determination that drove her success. "I always give my 100%. They [her parents] made me strong and I’ve always had that special power behind me."

Dai maintains what she has described as "48-hour days," often beginning work at 6 a.m. and continuing late into the night, including weekends, according to the South China Morning Post. Away from work, the wife and mother of two sons enjoys spending time with her family, playing basketball, cooking and exploring interior design.

Outside business, she has supported education initiatives and philanthropy. She and her husband helped fund a technology building at their alma mater, UC Berkeley.

Reflecting on her journey from immigrant student to billionaire entrepreneur, Dai has frequently encouraged young people to pursue their passions, particularly in technology. "I'm very passionate about helping young creators so that their vision and dream can flourish and continue despite complications in areas they don't foresee at the beginning," she said.

"Empowering young entrepreneurs [is] to develop disruptive technology and be at the forefront of innovation. If our technology is beautiful, efficient and better, the world will also be more beautiful, efficient and better."