Augusta, Maine – New reporting from American Journal News reveals that Susan Collins violated the STOCK Act by failing to properly disclose 24 stock transactions worth up to $395,000.

According to the report, Collins and her husband disclosed the transactions more than 100 days after the legal deadline. Earlier this year, reporting also revealed Collins failed to disclose a Pfizer stock purchase within the timeframe required under the STOCK Act.

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American Journal News: Susan Collins failed to report up to $395,000 in stock trades

By Jesse Valentine

June 5, 2026

• Maine Sen. Susan Collins failed to report up to $395,000 in stock trades, violating a law that she helped pass.

• The STOCK Act requires members of Congress and their spouses to disclose stock transactions within 45 days of a trade being ordered. A review of Collins’ disclosures from 2013 to 2018 shows 24 transactions that were reported more than 100 days late.

• All of these trades were made by Collins’ husband, Thomas Daffron, a former lobbyist. The late-reported items include shares of Microsoft, JPMorgan Chase, and CVS.

• NOTUS reported that Collins also failed to report a purchase of Pfizer stock earlier this year.

• Collins supported the STOCK Act when it was introduced in January 2012 and helped shepherd it into law by becoming the first Republican to back the measure. It ultimately passed with bipartisan support and was signed into law by President Barack Obama.

• “At a time when polls show low public confidence in Congress, there is a strong desire to address the concerns that underpin the public’s skepticism and assure the American people that we put their interests above our own,” Collins said in defense of the law.

• Collins has since opposed efforts to completely ban stock trading by members of Congress, an idea supported by the vast majority of voters and members of her own party. A Brennan Center survey found that 81% of adults support such a ban.

• Collins has acquired considerable wealth as a result of her investments.

• In 2001, she reported her net worth as between $111,000 and $315,000. According to Quiver Quantitative, which tracks the wealth of lawmakers, her net worth in 2013—less than a year after marrying Daffron—was $3.8 million. Today, it is $6.9 million.

• Earlier this year, it was reported that Collins and Daffron had personally profited from the war in Iran through their substantial oil and gas holdings.

• The STOCK Act requires lawmakers to pay a fine for every transaction reported outside the 45-day window. These fees are frequently waived by the House and Senate ethics committees. It is unclear whether Collins has been investigated or reprimanded for the infractions.