LAWYER PROFILE
Sebastian Orton

Sebastian Orton

UK 2026

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Ranked in 1 practice area

About

Provided by Penningtons Manches Cooper LLP

Practice Areas

Seb is a partner in the London corporate team and has extensive experience advising both private and public companies and financial institutions. His work covers a range of corporate issues with a particular focus on IPOs, secondary fund-raisings, M&A, including public company takeovers, and assisting listed companies on corporate governance and their continuing obligations.

He has wide cross-sector experience and has recently acted on a full range of issuer-side transactions from a FTSE250 Main Market IPO for a financial institution to a variety of smaller Main Market and AIM transactions in the retail and health and care sectors.

Seb was seconded to Investec's Corporate Finance Group in 2004 and Citigroup's ECM legal team in 2011 and has strong links with a variety of investment banks across the UK.

The legal directories describe Seb as ‘a known figure in the market for AIM IPOs and secondary offerings’ and as a ‘highly experienced practitioner with a wealth of knowledge’. He is also recognised for small and mid-cap flotations.

Career

Seb joined Penningtons Manches Cooper in 2019 from the City office of a leading international firm. Prior to that, he was a partner in the London office of a US law firm.

Chambers Review

Provided by Chambers

Chambers Guide to the Legal Profession

Capital Markets: AIM - UK-wide

Band 3
Band 3

Individual Editorial

Sebastian Orton maintains a wide-ranging corporate practice. He frequently works on AIM IPOs, secondary fund-raisings and takeovers.

Strengths

Provided by Chambers

  • Sebastian is great to work with, offers high-quality advice and makes the process as painless as possible.

    Capital Markets: AIMChambers Guide to the Legal Profession

Ranked Individuals at Penningtons Manches Cooper LLP (115)

East Anglia

London (Firms)

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