• 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
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
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • 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
About Us
  • 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

Latest in Finance

greenland
PoliticsGreenland
Denmark and Greenland agree to form working group over the future of the territory
By Emma Burrows, Claudia Ciobanu, Ben Finley and The Associated PressJanuary 14, 2026
2 hours ago
picture of a bitcoin
CryptoCryptocurrency
Bitcoin closes in on $100,000 in surprise surge
By Carlos GarciaJanuary 14, 2026
2 hours ago
taylor
Politicsphilanthropy
Rural America is getting a bailout, but not from Trump—billionaires are riding to the rescue
By Nick LichtenbergJanuary 14, 2026
2 hours ago
big sur
North AmericaCalifornia
Highway 1 along Big Sur reopens after 3 years of closures amid tourism-destroying landslide
By The Associated PressJanuary 14, 2026
3 hours ago
U.S. President Donald Trump (C) walks with Executive chair of Ford Motor Company Bill Ford Jr. (L), and CEO of Ford Motor Company Jim Farley as they tour the Ford River Rouge Complex on January 13, 2026 in Dearborn, Michigan.
Future of WorkTariffs and trade
Trump hails ‘booming investment’ in Detroit while auto manufacturing jobs have fallen every month since Liberation Day
By Eva RoytburgJanuary 14, 2026
5 hours ago
fraser
BankingCitigroup
Citigroup CEO Jane Fraser warns of job cuts and says it’s time to raise the bar in a fiery memo to staff: ‘We are not graded on effort’
By Nick LichtenbergJanuary 14, 2026
6 hours ago

Most Popular

placeholder alt text
Success
Despite his $2.6 billion net worth, MrBeast says he’s having to borrow cash and doesn’t even have enough money in his bank account to buy McDonald’s
By Emma BurleighJanuary 13, 2026
1 day ago
placeholder alt text
AI
'Godfather of AI' says the technology will create massive unemployment and send profits soaring — 'that is the capitalist system'
By Jason MaJanuary 12, 2026
2 days ago
placeholder alt text
Future of Work
'Microshifting,' an extreme form of hybrid working that breaks work into short, non-continuous blocks, is on the rise
By Nick LichtenbergJanuary 13, 2026
1 day ago
placeholder alt text
Economy
Goldman Sachs top economist says Powell probe won’t change the Fed: 'Decisions are going to be made based on employment and inflation'
By Sasha RogelbergJanuary 12, 2026
2 days ago
placeholder alt text
Economy
Americans making more than $100,000 are quickly losing faith in the economy—and it's a red flag for the white-collar job market
By Tristan BoveJanuary 12, 2026
2 days ago
placeholder alt text
AI
Being mean to ChatGPT can boost its accuracy, but scientists warn you may regret it
By Marco Quiroz-GutierrezJanuary 13, 2026
1 day ago

© 2025 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.