Simpson Thacher & Bartlett LLP

Simpson Thacher & Bartlett LLP is frequently entrusted with complex capital markets transactions, representing issuers and underwriters across the full range of equity offerings. The team is particularly experienced in the aviation, energy and retail sectors, often managing multiple offerings of ordinary and common shares. The group is led by Joshua Ford Bonnie in Washington DC, alongside Kenneth Wallach and Roxane Reardon in New York. Bonnie is a preeminent IPO lawyer who regularly advises public companies on spin-offs, strategic transactions and broader securities law matters. Reardon counsels corporates and investment banks on complex, multi-tranche capital markets transactions. Wallach focuses his practice on high-yield offerings, IPOs, restructurings and corporate governance issues. Joseph Kaufman excels in corporate governance issues. William Brentani excels in follow-on equity and preferred stock offerings. John Ericson has extensive corporate finance experience including secondary offerings, investment grade debt offerings and acquisition finance. Niels Jensen joined the firm in April 2025, from Vinson & Elkins LLP.