Weil’s Privacy, Cybersecurity Head Singer Jumps to Sidley Austin

Randi Singer, the leader of Weil Gotshal & Manges’ privacy and cybersecurity group, is heading to Sidley Austin.

Singer joins Sidley as a partner in its commercial litigation and disputes group in New York. She focuses her practice on copyright, Lanham Act false advertising and trademark litigation, as well as privacy and cybersecurity, and complex commercial litigation and bankruptcy.

“It’s really a homecoming for me because I have so many friends at Sidley,” Singer said in an interview. She was a litigation partner at Weil and member of its intellectual property and media practice in its New York and Silicon Valley offices.

Singer’s move follows other hires by Sidley from Weil in recent months, including antitrust partners Carrie Mahan and Vadim Brusser as well as energy infrastructure and private equity partners James MacArthur and Ed Freeman.

Randi Singer

Yvette Ostolaza, chair of Sidley’s management committee, said she knows Singer from her time at Weil. Ostolaza spent more than 20 years at the firm, leading its complex commercial litigation group, before joining Sidley in 2013.

Singer not only works on IP, copyright and trademarks, but is also a commercial litigator that handles consumer class action disputes and arbitrations, Ostolaza said. This dovetails with the firm’s strategy that handles everything as part of the litigation process, from investigations through to the appellate and Supreme Court level, she said.

“It’s a perfect fit,” Ostolaza said. “Randi is a stellar litigator.”

Over Singer’s two-decade career she has won victories for online retailer eBay Inc., including a precedent-setting case against Tiffany. She was also a part of the Weil team that represented Meta Platforms Inc.'s Facebook in its $19 billion acquisition in 2014 of WhatsApp Inc.

She was co-lead trial counsel for CareDx, which in March 2022 won a $45 million verdict following five days of a trial in a false advertising suit brought against a competitor, Natera. A Delaware federal judge in July threw out the award but affirmed and upheld the liability portions of the verdict.

“One of the things that’s great about my practice is that the copyright, the trademark, and advertising really crosses into a lot of different practice areas,” Singer said. “I’m really looking forward to collaborating with a lot of the strengths on the Sidley platform.”

Singer’s move was brokered by Sabina Lippman, partner and co-founder of global legal recruitment firm Lippman Jungers.