Katherine M. Clark

Representative Katherine M. Clark (D-MA) serves Massachusetts's 5th district and currently holds the position of House Democratic Whip, making her the second-ranking Democrat in the House leadership. First elected in a 2013 special election, she has built her reputation as a vocal advocate for working families, childcare access, and combating online harassment, while also serving on the House Appropriations Committee. Clark has disclosed 241 stock transactions between October 2016 and September 2025, with estimated trading volume between $367,000 and $3.9 million, showing particular activity in blue-chip stocks including Starbucks, Alphabet (Google), GlaxoSmithKline, Home Depot, and Apple. Her trading activity has been relatively quiet in recent months, with just one transaction in the past 90 days, suggesting a more measured approach compared to some of her congressional colleagues.