Susan Collins' Net Worth Reaches $5.9M: Latest Investment Portfolio and Financial Activity Revealed

According to recent financial tracking data compiled by Quiver Quantitative, Susan Collins’ net worth has been estimated at approximately $5.9M as of mid-2025, ranking her 121st among members of Congress in terms of wealth. The Maine senator accumulated an estimated $363.1K in stock market gains over a recent month-long period, reflecting active portfolio management based on publicly available trading records.

Collins’ Investment Portfolio and Asset Composition

Susan Collins’ financial holdings include approximately $3.5M invested in publicly traded securities that can be tracked through financial monitoring platforms. Her investment strategy spans multiple decades, with significant holdings in major corporations. One of her most substantial early investments was a $50M purchase of 3M Company (MMM) stock in February 2015, which has appreciated 6.28% since that transaction. More recently, a January 2022 acquisition of $50K in NVIDIA shares (NVDA) has yielded particularly strong returns, with the stock rising 367.74% following her purchase date.

Her portfolio also demonstrates strategic diversification. In December 2016, Collins acquired $50K of Tractor Supply Company (TSCO) shares, which have grown 228.99% over the subsequent years. Previous transactions included a December 2020 sale of Dunkin’ shares and a May 2019 divestment from Red Hat stock, each involving approximately $100K in transactions as documented in STOCK Act filings.

Recent Trading Activity and Congressional Disclosures

Quiver Quantitative’s analysis covers approximately $115.8M of documented trading activity derived from STOCK Act filings, providing transparency into the senator’s investment decisions. The data reveals a pattern of long-term holdings mixed with strategic portfolio adjustments, demonstrating both conservative and growth-oriented positions.

In her most recent financial disclosure filed in April 2025 for the Q1 reporting period, Collins reported $570.5K in fundraising, placing her in the top tier of fundraisers that quarter. The disclosure indicated that 76.2% of her fundraising came from individual donors. She also reported $203.8K in campaign spending and maintained $3.2M in cash reserves at the end of the quarter.

Legislative Priorities and Financial Transparency

Beyond her investment activities, Collins has recently advanced several legislative proposals addressing healthcare access and social services, consistent with her long-standing policy focus. Her financial transparency through required congressional disclosures demonstrates adherence to federal regulations governing elected officials’ securities transactions.

Susan Collins’ net worth profile reflects a diversified approach to wealth management while maintaining her Senate duties and regulatory compliance obligations.