Five members of Congress have traded millions of dollars in stocks since the start of the current term, according to a new analysis of financial disclosures. The activity spans both parties and includes trades made by spouses and dependent children. Lawmakers are required to report such transactions under the Stop Trading on Congressional Knowledge Act, commonly known as the STOCK Act.
The analysis reviewed disclosure filings from January 2025 through mid-2026, focusing on total dollar volume of trades. One senator, a Republican from the South, recorded over $12 million in transactions, the highest figure among all members. The bulk of that activity involved technology shares, including major firms like Nvidia and Microsoft. Another top trader, a House Democrat from California, reported trades exceeding $9 million, with a strong emphasis on semiconductor stocks.
Family members accounted for a significant portion of the trading in several cases. For one representative from Texas, a spouse’s portfolio activity contributed nearly half of the $7.5 million in total trades. In another instance, a senator’s adult child executed more than 150 separate stock purchases and sales, adding up to roughly $5 million. These transactions were disclosed in quarterly reports, which often lag the actual trade dates by up to 45 days.
Ethics experts note that the volume of trading raises questions about conflicts of interest and insider information, even when no violations are alleged. The STOCK Act, passed in 2012, aimed to curb such activity by requiring public disclosure. However, enforcement has been inconsistent, and many lawmakers have faced fines for late filings without major penalties. The new data highlights ongoing concerns about the effectiveness of the law.
One notable pattern emerged in the trading data: a concentration in defense and health care stocks. Several members increased holdings in companies like Lockheed Martin and Pfizer during periods of major legislative debates on military spending and drug pricing. While no direct evidence links individual trades to pending bills, the timing has drawn scrutiny from watchdog groups. These organizations have repeatedly called for a ban on individual stock trading by members of Congress.
The five lawmakers with the highest trade volumes all defended their activity as compliant with existing rules. In written statements, they emphasized that all transactions were conducted through blind trusts or with third-party financial advisers. One representative noted that the trades were made without direct knowledge of the specific stocks involved. Another senator’s office pointed to the public nature of the disclosures as proof of transparency.
Proposed reforms have stalled in both chambers. A bipartisan bill introduced in 2024 would have required lawmakers to place assets in blind trusts or face a fine equal to their congressional salary. The measure never advanced past committee, and similar efforts have been reintroduced this year. Supporters argue that public trust in government hinges on eliminating even the appearance of impropriety.
The analysis also found that the top five traders represented a small fraction of the 535 voting members. Combined, these individuals accounted for over $40 million in transactions, a disproportionate share of the total trading volume in Congress. Most lawmakers reported no stock trades at all, suggesting that active trading remains a niche activity on Capitol Hill. Still, the figures have reignited debates about financial ethics in public office.
Disclosure records remain the primary tool for oversight, but experts point out their limitations. Reports do not list the exact prices of trades, only broad ranges. This makes it difficult to assess profitability or intent. Additionally, trades made through certain retirement accounts are exempt from reporting, creating potential blind spots in the data. The analysis relied solely on mandatory filings, which may understate actual trading activity.
The five members identified did not respond to requests for further comment beyond their initial statements. Public interest in their financial activity is likely to persist, especially as the next election cycle approaches. Voters in their districts and states may weigh these disclosures as they consider re-election contests. The issue of stock trading in Congress remains a focal point for reform advocates, but legislative action appears distant for now.
