Simon Yiming Ma Net Worth: Surprising Truth Uncovered (2026)
Simon Yiming Ma net worth is estimated at $1.2 billion to $1.8 billion, yet no outlet, not Forbes or Bloomberg, cites a source. The public record holds only two real numbers. In 2013, Camelot Information Systems went private at $2.05 per ADS, implying a $98.2 million equity value for the whole company, not Ma’s personal stake. In 2021, “Kingsoft Cloud” acquired Camelot in an $830 million deal, issuing Ma and Heidi Chou roughly 2.6% each (5.2% combined).
The figure produces $1.2 billion to $1.8 billion. That number appears to be a modern estimate built on Atherton, California real estate and share price appreciation, not an SEC disclosed total.
Quick Facts
| Items | Details |
| Full Name | Simon Yiming Ma |
| Known For | Co founder, Chairman & CEO, Camelot Information Systems |
| Nationality | Chinese American |
| Date of Birth | Not publicly confirmed |
| Spouse | Heidi Chou (Camelot cofounder and President) |
| Daughter | Rebecca Ma (“Becca Bloom”) |
| NYSE Ticker (Camelot) | CIS (listed 2010, taken private 2014) |
| Net Worth (2026) | No verified figure. Two documented anchors exist: $98.2M in company equity (2013) and roughly $328M in a joint share grant (2021) |
Simon Yiming Ma Net Worth in 2026: A Sourced Estimate
No major wealth tracker Forbes, Bloomberg Billionaires, or the Hurun Rich List has published a number for Simon Yiming Ma. Camelot Information Systems is privately held, Ma has never given a financial interview, and the two data points that exist for Simon Yiming Ma are more than three years old. Any figure claiming more precision is a guess dressed up as research.
The Two Documented Anchors
| Year | Event | Reported Value | Source |
| 2013 | Camelot going private equity valuation | ~$98.2 million (total company equity, not personal wealth) | SEC filing, via Stanford Securities Class Action Clearinghouse |
| 2021 | Kingsoft Cloud share grant to Ma and Heidi Chou jointly | ~$328 million on paper (combined, both cofounders) | Reported by Celebrity Net Worth, citing public securities filings |
Neither number is Simon Yiming Ma’s personal net worth. The first is what the whole company was worth during the buyout. The second is a joint award split between two people, priced at a single moment in 2021 before lockup expiry, before any resale, and before years of share price movement.
How This Estimate Is Built
Simon Yiming Ma net worth of $328 million reflects “Kingsoft Cloud’s share” price at the moment the 2021 deal closed, during a period when Chinese cloud stocks traded well above where Kingsoft Cloud (NASDAQ: KC) has generally sat through 2026, mostly in the $9–$18 range.
That gap matters, but it can’t become an exact current figure, since the number of shares issued to Ma and Chou was never disclosed. Without that count, any “current value” claim is invented, not calculated the same flaw behind the $1.2 billion to $1.8 billion, just with extra steps. The honest read: the 2021 figure is likely the high water mark, not today’s value, and Atherton real estate adds a further real but unquantified layer.
Simon Yiming Ma Net Worth: Confidence Tiered Breakdown
| Tier | What It Includes | Basis |
| Documented | 2013 equity value ($98.2M); 2021 share grant (~$328M) | SEC filings, litigation records |
| Directional, not quantified | 2026 KC trading range below 2021 levels; Atherton real estate | Market data, real estate reporting; no share count to convert |
| verified | $1.2 billion to $1.8 billion | No source, no analyst, no methodology |
Why “Ma Plus Chou” Isn’t the Same as “Ma Alone”
This is the detail most pages skip. The $328 million went to both cofounders, as a combined payment for their joint Camelot stake. Splitting it in half is a reasonable guess, not fact. Camelot’s ownership split between the two has never been made public. Any “his half” figure adds a further layer of estimation on top of the repricing problem above.
What is Simon Yiming Ma net worth? Early Life and Background
He was born in China; his exact birth year is not publicly confirmed, despite what some sites claim with false confidence. He studied mathematics as an undergraduate at East China Normal University, then moved to the U.S., earning a master’s and PhD in mathematics and computer science from UC Santa Barbara.
That path shaped his career. Ma spent about eight years at IBM in Silicon Valley, rising to Chief Architect and designing enterprise software for major clients. There he met Heidi Chou, his future wife and business partner, a relationship that became the operating core of Camelot.
Not to be confused with: Jack Ma of Alibaba or Zhang Yiming of ByteDance, namealike Chinese tech figures with no business or family tie to him.
Career Timeline and Key Milestones
Early Career at IBM (1986–1994)
Simon Yiming Ma worked in IBM’s Silicon Valley operations as a software designer and later Chief Architect, building enter prisescale systems over roughly eight years, a stretch that gave him the technical depth and client relationships that later shaped Camelot’s business model.
Founding Camelot (2000–2010)
Beijing founding and growth by acquisition (2000–2008): Simon Yiming Ma and Heidi Chou cofounded Camelot in Beijing in 2000, targeting a gap: Chinese enterprises needed SAP based ERP implementation and financial sector IT services, and few local firms could deliver at an international standard. Between 2007 and 2008, Camelot grew partly through acquisition, absorbing firms with expertise in Taiwanese and mainland Chinese financial software, steel industry systems, and life insurance applications.
NYSE initial public offering (July 2010): Camelot went public on the New York Stock Exchange on July 21, 2010, under ticker CIS, becoming one of the first Chinese domestic IT services firms to list in the U.S. A secondary offering followed that December, and revenue grew over 90% year over year the following quarter.
Privatization and Buyout (2013–2014)
Camelot’s share price fell sharply after its IPO peak, closing around $1.50 per ADS by March 2013. Ma led a going private proposal at $2.05 per ADS, a 36.7% premium, and the buyout closed in 2014, returning Camelot to full private ownership.
The Kingsoft Cloud Era (2021–2023)
In 2021, Kingsoft Cloud “acquired controlling interests in Camelot, issuing shares to Ma and Heidi Chou as consideration. It acquired the remaining stake in 2023, folding the company Ma spent two decades building into a publicly traded cloud infrastructure business.
Simon Yiming Ma Net Worth Breakdown by Income Source
| Source | Current Value (2026) | Confidence Level |
| Kingsoft Cloud shareholding (from Camelot deal) | Not quantifiable; share count undisclosed | Documented as a 2021 grant (~$328M combined); no reliable 2026 repricing possible |
| Atherton, California real estate | Not quantifiable; no appraisal on record | Unverified; property count only, no valuation |
| Private investments | Unquantified | Unverified; referenced elsewhere, but never documented |
Kingsoft Cloud equity: The largest known piece of Ma’s wealth, but its value depends on the share price and how much of the original grant remains unsold since lockups expired. Neither detail is public.
Atherton real estate: Reporting consistently places the family’s holdings at five to six properties in Atherton, regularly ranked the most expensive residential ZIP code in the U.S., but no figure traces to a public deed or appraisal. Treat the count as an estimate, not fact.
Private investments: Several outlets describe cross border U.S. China tech and fintech investment activity tied to Ma. None of this is independently sourced, so it’s included for completeness only.
Assets and Lifestyle
Simon Yiming Ma net worth and documented lifestyle footprint are small compared with his overall wealth picture, fitting his low public profile. The one substantiated category is real estate: multiple properties in Atherton, California count only, with no dollar valuation on record in a market where even modest lots regularly sell in the eight figure range. Claims about vehicles or other personal purchases online are unsourced and left out here.
Net Worth: Documented Value Milestones
Instead of a smooth growth chart, which would mean inventing data, here are the actual dated events on record:
| Year | Milestone | Documented Value |
| 2010 | Camelot NYSE IPO (Ticker: CIS) | $147 million raised |
| 2011 | PostI IPO peak market capitalization | Above $1 billion (companywide, not personal) |
| 2013 | Going private equity valuation | ~$98.2 million (SEC filing) |
| 2013 | Buyout price per ADS | $2.05 (36.7% premium) |
| 2021 | Kingsoft Cloud share grant to Ma and Chou | ~$328 million combined |
A note on what’s missing: there’s no reliable data point between 2014–2020 or 2022–2026. Any chart showing continuous growth across those gaps is filling in numbers nobody has reported.
Net Worth Comparison: Simon Yiming Ma vs. Jerry Yang
Jerry Yang, Yahoo’s cofounder, is a useful comparison; both men built companies at the intersection of Silicon Valley and Asian markets in roughly the same era. The contrast is the story: one has a Forbes tracked net worth, the other doesn’t, despite a comparably significant career.
| Name | Net Worth | Profession | Primary Income Source |
| Simon Yiming Ma | No verified figure; documented anchors only | Tech executive, Camelot cofounder | Kingsoft Cloud equity, real estate |
| Jerry Yang | ~$3.1 billion (Forbes, as of 2025) | Internet entrepreneur, Yahoo cofounder | Yahoo equity/exit, venture investing (AME Cloud Ventures) |
The gap isn’t necessarily a wealth gap; it’s a visibility gap. Yahoo was consumer facing with widely tracked stock movement, while Camelot spent most of its life privately held or thinly covered by Western press exactly why no tracker has built a confident figure for Ma.
Public Image and Family Attention
For more than two decades, Simon Yiming Ma net worth stayed almost entirely out of view: no financial interviews, no conference circuit, no social media presence. That changed indirectly in 2025, when his daughter Rebecca Ma became a viral TikTok creator under the name Becca Bloom, earning a spot on TIME’s 100 Best Creators List that July. Her wedding to Google engineer David Pownall at Villa Balbiano on Lake Como that August became one of the year’s most watched influencer events.
Frequently Asked Questions
What is Simon Yiming Ma’s net worth in 2026?
No confirmed figure exists. Two anchors are on record: $98.2 million (2013 SEC filing) and roughly $328 million (joint 2021 Kingsoft Cloud grant), but the share count needed to reprice the second figure was never disclosed. The often cited “$1.2 billion to $1.8 billion” has a traceable source.
How did Simon Yiming Ma make his money?
Simon Yiming Ma net worth: cofounded Camelot in Beijing in 2000, took it public on the NYSE in 2010, bought it back private in 2014, and received Kingsoft Cloud shares when it acquired Camelot’s controlling interest in 2021. Atherton real estate adds an unquantified layer.
Is Simon Yiming Ma a billionaire?
No evidence supports that. Neither documented figure comes close to billionaire territory, even before splitting the 2021 grant between two people.
Is Simon Yiming Ma related to Jack Ma?
No. They share a surname, and both built major Chinese companies, so they’re often confused online, but there’s no family or business tie.
What happened to Camelot Information Systems?
It went public on the NYSE in 2010, went private in a 2014 buyout, and was acquired by Kingsoft Cloud in stages between 2021 and 2023.
Who is Simon Yiming Ma’s wife?
Heidi Chou, Camelot’s cofounder and President, who received the same 2021 Kingsoft Cloud grant jointly with Ma.
Why is there no verified net worth figure for him?
Camelot was privately held for most of its history, Ma has never disclosed his finances, and no wealth tracker has published a figure. The two data points that exist are years old and don’t map to one current number.
Who is Simon Yiming Ma’s daughter?
Rebecca Ma, known online as Becca Bloom, became a viral TikTok creator in 2025 and made TIME’s 100 Best Creators List that July, the event that drove most current search interest in her father.
Final Thoughts
His story combines two remarkable journeys: a two decade enterprise software career that took Camelot from a Beijing startup to an NYSE listing, back into private ownership, and into Kingsoft Cloud’s orbit, followed by renewed public attention driven largely by his daughter’s rise as Becca Bloom.
The available figures provide useful historical context for understanding Simon Yiming Ma net worth. His reported wealth was valued at $98.2 million in 2013 and approximately $328 million in 2021. Both figures are dated and sourced, but they do not establish his current fortune. Until reliable financial disclosures or a well supported estimate becomes available, Simon Yiming Ma net worth remains publicly unconfirmed. Any newer figure deserves scrutiny and credible evidence.
James Whitfield writes about celebrity net worth, public figures’ biographies, career milestones, and financial backgrounds for NetWorthAbout.com. His content helps readers explore the professional achievements and potential income sources behind well known personalities. James focuses on presenting information in a reader friendly format, with attention to clarity, context, and responsible reporting. When discussing wealth estimates, his editorial approach emphasizes the difference between verified financial information and figures that remain estimates rather than confirmed personal disclosures.
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