• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinanceInsider trading
Europe

British $4.8 billion hedge fund founder—and Blackpool FC owner—Simon Sadler faces Hong Kong insider trading charges 

By
Venus Feng
Venus Feng
,
Tom Maloney
Tom Maloney
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Venus Feng
Venus Feng
,
Tom Maloney
Tom Maloney
, and
Bloomberg
Bloomberg
Down Arrow Button Icon
May 10, 2024, 4:47 AM ET
Blackpool owner Simon Sadler
Hong Kong authorities have charged Segantii, along with Sadler and another former employee, with insider dealing.Mike Egerton—PA Images/Getty Images

Simon Sadler turned Segantii Capital Management Ltd. from a tiny startup hedge fund into a $4.8 billion giant, cultivating a reputation as Asia’s “block-trade king” from his perch in Hong Kong.

Over those 17 years, he amassed a net worth of at least $360 million, according to the Bloomberg Billionaires Index. 

Now all that he’s created is under scrutiny. Hong Kong authorities have charged Segantii, along with Sadler and another former employee, with insider dealing, in arguably the city’s highest-profile hedge fund trial since Bill Hwang received a four-year trading ban while at Tiger Asia Management more than a decade ago. In the Asian financial hub, the maximum penalty for insider dealing is 10 years’ jail time and millions of dollars in fines.

At least two large institutions are distancing themselves from Segantii, with JPMorgan Chase & Co. and Nomura Holdings Inc. limiting their exposure to the fund, Bloomberg News reported earlier this week. Segantii listed nine banks, including JPMorgan, Goldman Sachs Group Inc., BNP Paribas SA and UBS Group AG, as its prime brokers in a March performance update to investors.

It’s a remarkable turn of events for Sadler, 54, who parlayed his financial success over the years into setting up Segantii offices in London, New York and Dubai, and even buying Blackpool Football Club, the team he rooted for growing up.

Sadler owns a stake in Segantii of at least 75%, worth some $62 million, while about 8% of its private fund assets were beneficially held by insiders at the end of December, according to regulatory filings to the US Securities and Exchange Commission. Bloomberg’s wealth index estimates Sadler has almost $290 million invested in Segantii and values the Blackpool-related assets — including the club and a stadium — at about $15 million.

Kurt Ersoy, Segantii’s chief executive officer, declined to comment for this story. After the charges were unveiled last week, the firm said it “intends to defend itself vigorously.” 

Sadler grew up in Blackpool and was the first from his family to attend college. The British native began his finance career in London and started working in Hong Kong in 2003. Segantii, which he set up in 2007 with $26.5 million, soon became a key hedge fund specializing in Asia Pacific stocks and equity-linked securities, trading with firms all over the world.  

Hong Kong’s Securities and Futures Commission alleged Sadler and a former trader, Daniel La Rocca, had insider information when dealing shares of a locally listed company prior to a block trade in June 2017. 

Block trades are off-exchange, privately negotiated transactions involving large numbers of publicly listed stocks. Bankers often ask hypothetical questions to gauge demand and sometimes give non-public details after the buyers pledge not to trade on the privileged information. 

It’s rare in Hong Kong to put a hedge fund manager on trial. In 2013, Hwang, a colleague and Tiger Asia were ordered by a local court to pay HK$45 million ($5.8 million) after admitting to insider trading. Less than a decade later, Hwang’s second act, Archegos Capital Management, imploded fabulously. 

In the US, Segantii had about $1.6 billion worth of equities by the end of last year, according to its latest 13F filing. It owned 101 stocks, including packaging-services company WestRock Co., energy firm Hess Corp. and Chinese e-commerce giant Alibaba Group Holding Ltd. That’s a small fraction of the hedge fund’s overall holdings and the disclosures don’t include most derivatives or short positions. 

As his wealth expanded, Sadler didn’t forget his roots: He bought Blackpool FC in 2019 and donated £1.5 million ($1.9 million) in March to his alma mater, the University of Manchester. He’s now on a HK$1 million cash bail, with the next hearing scheduled for June. 

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Venus Feng
See full bioRight Arrow Button Icon
By Tom Maloney
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Latest in Finance

trump
Economynational debt
Trump wants to add nearly $7 trillion to the $39 trillion national debt with his new military budget, watchdog warns
By Nick LichtenbergApril 2, 2026
2 hours ago
paul krugman
EconomyIran
Paul Krugman smacks down Trump speech with argument that $4 gas is ‘less than half’ of the Hormuz hit. Here’s what he’s talking about
By Jake AngeloApril 2, 2026
2 hours ago
picture of the word "solana"
CryptoCryptocurrency
Latest crypto hack sees thieves make off with $280 million from Solana DeFi platform Drift
By Carlos GarciaApril 2, 2026
4 hours ago
kroenke
CommentarySoccer
Why American billionaires are abandoning Wall Street for English soccer clubs
By Andrés MartinezApril 2, 2026
4 hours ago
Workers on the production line of solar panels in China
EnergyRenewables
After renewable power’s record-smashing 2025, the Iran war could accelerate the shift as countries seek ‘structurally more resilient’ energy, UN says
By Tristan BoveApril 2, 2026
4 hours ago
Traders signal offers in the S&P options trading pit at the Cboe Global Markets exchange on March 31, 2026 in Chicago, Illinois.
EnergyIran
Markets rally hard on Iran’s promise to play nice in Hormuz as its leaders pocket billions from the disruption
By Eva RoytburgApril 2, 2026
5 hours ago

Most Popular

Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
Real Estate
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
By Fortune EditorsApril 2, 2026
15 hours ago
Current price of gold as of April 1, 2026
Personal Finance
Current price of gold as of April 1, 2026
By Fortune EditorsApril 1, 2026
1 day ago
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
Success
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
By Fortune EditorsMarch 31, 2026
2 days ago
Current price of oil as of April 1, 2026
Personal Finance
Current price of oil as of April 1, 2026
By Fortune EditorsApril 1, 2026
1 day ago
The tax escape map: Billionaires are bolting for Florida from the West Coast and taking billions in tax revenue with them
Real Estate
The tax escape map: Billionaires are bolting for Florida from the West Coast and taking billions in tax revenue with them
By Fortune EditorsApril 2, 2026
15 hours ago
Deutsche Bank asked AI if it’s true that AI will solve the economy’s inflation problems. The robots answered
Economy
Deutsche Bank asked AI if it’s true that AI will solve the economy’s inflation problems. The robots answered
By Fortune EditorsApril 1, 2026
1 day ago