Martin Seidel
Martin Seidel ()

In another loss of a leading litigation partner at Cadwalader, Wickersham & Taft, Martin Seidel, who was chair of its corporate litigation group, has moved to Willkie Farr & Gallagher.

Seidel started at Willkie over the weekend as a litigation partner, advising on disputes related to mergers and acquisitions, securities laws, corporate accounting and disclosure and corporate governance.

Seidel had been at Cadwalader for 15 years and was named chair of its corporate litigation department about six months ago, he said in an interview Monday. At that time, Cadwalader had just seen the departure of Louis Solomon, co-chair of its litigation department and chair of its commercial and international litigation groups, as well as three other partners. All four left for Greenberg Traurig.

In August, an antitrust team led by practice head Charles “Rick” Rule left Cadwalader to join Paul, Weiss, Rifkind, Wharton & Garrison in Washington, D.C. The American Lawyer reported earlier this year that Cadwalader had approached some firms about a potential merger.

In an interview, Seidel said he left for his own reasons and denied that any internal conflict at Cadwalader prompted his move.

“It [Cadwalader] is a very good firm, and I’m sad to have had to depart ways with them, but the opportunity came to come to Willkie,” he said. “It was just clearly a better platform for my practice and my clients’ needs and where I want to go in the future.”

Seidel, who said no other Cadwalader attorneys were coming with him, has worked with Willkie attorneys several times as co-counsel or opposing counsel, including on M&A and securities litigation.

A Cadwalader spokeswoman did not return a message seeking comment on Seidel’s exit.