Weil, Gotshal & Manges Adds New Antitrust Partner

The firm strengthens its merger control and HSR compliance bench to support operators through complex transactions.

Updated on Oct. 21, 2026 in People

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Weil, Gotshal & Manges has appointed Yuni Yan Sobel as an antitrust partner in New York to bolster its regulatory and merger-compliance practice. AI Illustration. Upload story photo >

Weil, Gotshal & Manges has appointed Yuni Yan Sobel as a partner in its antitrust practice in New York City. The hire strengthens the firm's capacity to navigate complex merger control and Hart-Scott-Rodino Act compliance for corporate clients.

Why it matters

Law firms are bolstering their antitrust benches to navigate increasing regulatory scrutiny on deal-making. This move aims to deepen the firm's expertise in navigating the complex filings required for corporate transactions.

Yuni Yan Sobel brings seven years of experience from her previous role at Paul, Weiss, Rifkind, Wharton & Garrison to the firm's New York office. The appointment scales the firm's capabilities in merger control and HSR Act filings.

The players

Yuni Yan Sobel

New partner at Weil, Gotshal & Manges specializing in merger control and the Hart-Scott-Rodino Act.

Weil, Gotshal & Manges

A global law firm providing legal services for complex business transactions and high-stakes litigation.

New York State Bar Association

A voluntary professional organization that Sobel serves as an executive committee member.

The details

Sobel joins the firm to focus on merger control and the Hart-Scott-Rodino Act, which requires companies to report large transactions to federal regulators. Her role assists operators in meeting compliance standards during the pre-merger notification process. This addition effectively expands the firm's bench strength in managing regulatory reviews for complex business transactions.

Timeline

  1. October 20, 2026: Weil, Gotshal & Manges announced the appointment of Yuni Yan Sobel.

Market Landscape

The hiring of antitrust counsel at major firms reflects the broader industry trend of scaling legal teams to manage increased enforcement scrutiny. This move follows a pattern of firms strengthening their expertise to navigate the complex regulatory requirements of the Hart-Scott-Rodino Act.

Operators planning mergers or acquisitions should review their current antitrust counsel coverage to ensure they have adequate support for HSR filings. Monitoring changes in regulatory staffing at major firms helps businesses identify where to source specialized compliance expertise.

The takeaway

Antitrust expertise is a critical component for businesses pursuing growth through acquisitions in a heightened regulatory environment. Operators should track how major law firms are adjusting their internal structures to manage these increasingly complex transaction filing requirements.

Further reading

For broader trends on legal talent shifts, see our People section.

Source note: This article includes information reported by International Comparative Legal Guides International Business Reports.