Chief Financial Officer
John Charles O’Hara is a Chartered Accountant and Chief Financial Officer (CFO) of SEALSQ Corp (NASDAQ: LAES), a role he has held since January 2024.[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/)[[3]](https://www.sealsq.com/investors/management-team) In addition to his position at SEALSQ, he also serves as Chief Financial Officer of WISeKey International Holding Ltd., SEALSQ’s parent company, a post he assumed in July 2024.[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/) O’Hara has more than 20 years of experience in finance and accounting across multiple sectors, including professional services, leisure, and the restaurant industry.[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/) He has held finance management roles at organizations such as Marsh & McLennan Companies, Deloitte, Yum! Restaurants International, and Chelsea FC plc, specializing in controllership, financial planning & analysis, finance transformation, and Sarbanes–Oxley compliance.[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/)
Before becoming CFO, O’Hara was International Controller for WISeKey from 2018 to 2023, gaining extensive experience in global financial operations and reporting.[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/) He is a Fellow Chartered Accountant (FCA), having qualified in accountancy with Grant Thornton in the United Kingdom, and he holds a BA in Economics from Durham University (UK).[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/) As a corporate insider at SEALSQ, O’Hara has engaged in multiple equity transactions, including recent sales of SEALSQ stock in his capacity as CFO and director.[[1]](https://www.insidertrades.com/sealsq-corp-stock-1/john-charles-ohara/)[[4]](https://fintel.io/n/o-hara-john-charles-323)
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