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William B. Mack is a co-chair of the Financial Regulatory and Compliance Practice. He is experienced in advising companies on regulatory and compliance matters relating to the Securities and Exchange Commission regulations, the Exchange Act, Anti-Money Laundering laws and Financial Industry Regulatory Authority (FINRA) rules.

William’s practice involves all aspects of broker-dealer regulation, including Self-Regulatory Organization (SRO) membership, supervision, employment, research, soft dollar arrangements, chaperoning of foreign broker-dealers, social media, use of foreign finders, anti-money laundering rules, alternative trading systems (ATS), exchanges, and market making issues. He also provides regulatory guidance to investment banking clients in connection with securities offerings and related trading issues.

 

On Nov. 7, 2022, the U.S. District Court for the District of New Hampshire granted the Securities and Exchange Commission’s motion for summary judgment in SEC v. LBRY, Inc.

Continue Reading SEC v. LBRY, Inc.: The SEC’s Latest Crypto Victory


On Dec. 12, 2020, the U.S. Securities and Exchange Commission brought what crypto followers consider one of the most consequential enforcement actions related to the sale of cryptocurrency since the

Continue Reading Crypto Showdown: SEC’s Lawsuit Against Ripple Labs Reaches Critical Juncture

Federal regulatory agencies are closely monitoring crypto-asset developments and banking organizations’ participation in the crypto-asset industry. This GT Alert covers the guidance issued by the FDIC, CFPB, and the Federal
Continue Reading Regulatory Scrutiny on the Rise of Bank and Crypto Company Dealings

On June 2, 2022, the New York Senate passed Senate Bill S6486D (the Bill), which would amend the state’s environmental conservation law and set forth a two-year moratorium on certain
Continue Reading New York’s Proposed Moratorium on Cryptocurrency Mining Operations

The digital asset and blockchain sector in 2021 saw exponential growth and adoption fueled by stablecoins, non-fungible tokens (NFTs), decentralized finance (DeFi), and decentralized autonomous organizations (DAOs). Headed into 2022,
Continue Reading Digital Assets Sector: What to Watch for in 2022