A stock disclosure shows a sale of up to $100,000 worth of shares in industrial filtration manufacturer Donaldson Company, Inc. by the spouse of Rep. Michael T. McCaul, one of the most active congressional traders by volume of reported transactions.
The trade involved shares of DCI, the New York Stock Exchange–listed industrial machinery company with a market capitalization of about $9.9 billion. The company’s filtration systems and replacement filters are widely used in heavy-duty engines, industrial equipment, and dust collection systems across sectors including agriculture, construction, aerospace, and manufacturing.
The disclosure places the transaction in the mid-five-figure range, a size large enough to draw attention from congressional trading watchers tracking portfolio shifts among lawmakers and their families.
Details of the Donaldson transaction
- Lawmaker: Rep. Michael T. McCaul (R-Texas)
- Company: Donaldson Company, Inc. (DCI)
- Transaction: Sell
- Reported amount: $50,000–$100,000
- Estimated value: approximately $75,000
- Date: February 18, 2026
- Owner: Spouse
Donaldson shares recently traded around $85.80. At that price level, the reported sale range suggests the transaction likely involved several hundred shares, depending on the exact execution price.
Donaldson is a closely watched industrial name because much of its revenue comes from replacement filters and other aftermarket components tied to equipment usage. When industrial machinery, trucks, and heavy equipment run more frequently, demand for filtration replacements tends to rise. That dynamic makes the company a proxy for global industrial production and utilization trends.
A heavily traded congressional portfolio
McCaul’s disclosure history stands out on Capitol Hill. According to compiled filing data, the Texas Republican has reported more than 17,500 trades over his career, placing him among the most active lawmakers in terms of total transaction count.
Like many congressional disclosures, the trade was reported in a broad dollar range rather than an exact value. The STOCK Act requires members of Congress to publicly report stock trades within a set timeframe, allowing the public to monitor potential financial conflicts while lawmakers carry out legislative duties.
McCaul currently serves on the House Committee on Homeland Security and the House Committee on Foreign Affairs, where he is involved with regional subcommittees covering East Asia and the Pacific as well as Europe. Those assignments focus primarily on national security and international policy rather than domestic industrial manufacturing.
Other lawmakers also trading Donaldson
Donaldson has appeared periodically in congressional financial disclosures. At least four lawmakers have reported trades in DCI shares, according to congressional transaction data.
The company’s business model—combining industrial equipment exposure with recurring aftermarket revenue—has long attracted investors seeking steadier cash flow than many cyclical machinery peers.
Investors tracking Capitol Hill activity often monitor these filings for signals about sector sentiment or portfolio rebalancing among political insiders. New disclosures like McCaul’s are regularly added to databases of the latest congressional trades, which aggregate transactions across the House and Senate.
For Donaldson, the February sale represents a relatively modest position adjustment compared with the size of many institutional holdings, but it adds another data point to the growing public record of congressional trading activity.