Stephen Kastenberg of Ballard Spahr LLP is a go-to litigator for Fortune 500s and major institutions navigating high-stakes, high-profile disputes. A trusted advisor to Comcast, GlaxoSmithKline, Nasdaq, and Princeton, he leads on complex antitrust, patent, and governance matters across jurisdictions. Recently, he spearheaded Nasdaq’s defense in a closely watched SEC-related funding battle. Known for strategic insight and long-term client partnerships, Kastenberg is a standout practitioner in sophisticated commercial litigation.
L'éditorial du Legal 500
- Profil
Distinctions
Philadelphia Elite
Clients clés
- Comcast Corporation
- Nasdaq, Inc.
- GlaxoSmithKline LLC
- Princeton University
- Haleon, Inc.
- Lubert Adler Partners, L.P.
- American Society of Mechanical Engineers
- SC Gaming OpCo LLC (Ira Lubert gaming interests)
Points forts
Representing Nasdaq in litigation challenging the SEC’s funding model for the Consolidated Audit Trail (CAT).