
Registered Funds
Corporate
Private Equity
Investment Funds
Asset Management Regulatory and Enforcement
Financial Regulation
M&A
Owen Lysak is a Partner at Simpson Thacher & Bartlett, based in the London office. He co-leads the firm's European financial services and funds regulatory practice, as well as the European evergreen private wealth funds practice. Owen is recognized for his expertise in advising private funds and alternative asset managers on complex U.K. and EU financial regulatory matters. His practice includes counseling on AIFMD, MiFID II, and UCITS, and advising on the regulatory aspects of M&A and restructurings within the financial sector. Owen has been acknowledged by Legal 500 UK and Chambers UK for his leadership in financial regulation.
Owen Lysak's representative experience includes advising:

- SMBC Group entered into a Strategic Alliance with Jefferies Financial Group Inc. on not available. - Deal value was 2900000000 Sector: Financial Services; Location: Global. - On the acquirer side, counsel was not available; lawyers included Sven Mickisch, Timothy Gaffney, Brian Christiansen, David Blass, Owen Lysak, Etienne Renaudeau, Peter Guryan.
Sep 19 2025
3B
M&A
Partner
2021 – Unknown
Partner
2017 – 2021
Senior Associate
2016 – 2017

- Blackstone entered into a strategic partnership with Legal & General in a strategic partnership on not available. - Deal value was 4300000000 Sector: Financial Services; Location: Global. - On the acquirer side, counsel was not available; lawyers included Drew Harmon, Elizabeth Cooper.
Jun 08 2025
4B
Finance
1 min
LLB, London School of Economics and Political Science
2002