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Mayer Brown

Work +1 212 506 2500
Fax +1 212 262 1910

John Berkery

Work +1 212 506 2552
Mayer Brown

Work Department

Corporate & Securities.


John Berkery is a partner in Mayer Brown's Corporate & Securities practice. He represents underwriters, issuers and selling stockholders in a wide range of capital markets transactions, including registered public offerings (IPOs, follow-on offerings, continuous offering programs), private placements (including Rule 144A/Reg S offerings), leveraged buyouts, restructurings and liability management transactions (exchange offers, tender offers and consent solicitations). He is experienced in a broad spectrum of securities products, ranging from high yield to investment grade debt securities and from simple common equity to complicated convertible debt and other hybrid and equity-linked securities. His practice also includes assisting clients with their on-going reporting obligations, corporate governance requirements and other compliance issues arising under the Securities Exchange Act of 1934, the NYSE and NASDAQ, as well as general corporate law matters.


Le Moyne College, BA, 1989; Emory University, JD, 1993.

United States: Finance

Capital markets: equity offerings

Within: Capital markets: equity offerings

Mayer Brown’s national practice is led out of Chicago by Edward Best and also draws upon key names in New York, Houston and Palo Alto. The team is well versed in the full spread of equity deals and routinely acts for issuers, investment banks, financial sponsors, placement agents and selling shareholders in major deals. In a significant highlight, New York’s George Baptista advised Companhia de Saneamento do Paraná on its $496m IPO. New York’s David Bakst is a high-profile figure in the team and assisted Adaptimmune Therapeutics with its $61.9m offering of American depositary Shares. New York-based John Berkery and Houston-based William Heller are also recommended. In a significant development, the firm recently hired a new capital markets team from Morrison & Foerster LLP, which included new global group co-head Anna Pinedo and Jerry Marlatt, as well as tax specialists Thomas Humphreys and Remmelt Reigersman - all join the New York office, except Reigersman who joins in Palo Alto. In November 2018, Phyllis Korff joined in New York from Skadden, Arps, Slate, Meagher & Flom.

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Capital markets: high-yield debt offerings

Within: Capital markets: high-yield debt offerings

Mayer Brown’s high-yield debt practice, which is led out of Chicago by Edward Best, has a strong emphasis on issuer representations but also has significant underwriter-side experience. Houston’s William Heller is a key contact for energy-related securities matters and recently assisted Halcón Resources with its $850m notes offering. Palo Alto-based Jennifer Carlson advised Plastipak Holdings on its $500m notes issuance. Among its manager side work, the firm acted for an underwriter on Cydsa’s $330m offering of senior notes. John Berkery and Houston’s Harry Beaudry are also noted. In 2018, the firm hired a new capital markets team from Morrison & Foerster LLP, which included new global department co-head Anna Pinedo, and Jerry Marlatt as well as tax specialists Thomas Humphreys and¬ Palo Alto-based Remmelt Reigersman. Individuals are based in New York unless otherwise stated.

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