Mike Thompson: No Disclosed Stock Trades

Mike Thompson Congressional Trading Profile | Quantellect Mike Thompson Congressional Trading Profile | Quantellect

Mike Thompson has no disclosed securities transactions on file. The California Democrat represents the state's 4th District in the House for the current term running from January 3, 2025, through January 3, 2027. With no transaction rows attributed to Thompson, a blank transaction ledger is itself the central data point on this Quantellect profile.

Thompson is not an outlier in this respect. He is one of 237 House members, out of 437 sitting members of the chamber, with zero disclosed trades on record as of the most recent measurement date, August 22, 2026. Across both chambers, 276 of the 537 sitting members of Congress currently show no disclosed trading activity at all. A blank transaction history places Thompson in the majority of his colleagues rather than the minority, a useful frame for any reader tempted to read significance into the absence of trades.

What the Disclosure Framework Requires, and What It Does Not

The Stop Trading on Congressional Knowledge Act of 2012 established prompt-reporting requirements for covered financial transactions. The House Committee on Ethics financial disclosure instruction guide explains that purchases, sales, or exchanges exceeding $1,000 and involving stocks, bonds, or other securities for a filer, spouse, or dependent child generally must be reported on a Periodic Transaction Report, subject to exclusions and waivers. PTRs are due by the earlier of 30 days after the filer becomes aware of the transaction or 45 days after the transaction date. The guide also identifies activity excluded from PTR reporting, including transactions involving real property, mutual funds, and exchange-traded funds, along with waivers and exclusions for certain trusts and financial arrangements. The absence of a PTR record shows that no report is on file; the data available to us does not establish which reporting circumstance explains that absence, and no explanation should be assumed.

It is also worth being precise about what a disclosure record can and cannot capture even when it exists. Quantellect categorizes attribution as self, spouse, joint, dependent child, or unknown when attribution cannot be determined. That distinction matters because a transaction disclosed under a member's name may belong to a spouse, dependent child, or joint interest rather than represent a personal trade by the member. In Thompson's case, there is no transaction history to categorize by attribution, so no inference can be drawn about how his household conducts its private financial activity.

Score Coverage

Thompson does not currently carry a Quantellect Score. As of the latest published scoring date, August 21, 2026, no score row exists for him. Scores exist for 76 members in the dataset, including 73 who are currently sitting, compared with the full population of 537 sitting members. The absence of a score is an absence of published score coverage, not an assessment of Thompson's trading discipline or conduct.

For investors and researchers using this page as a reference point, the practical takeaway is straightforward. There is nothing in the disclosed transaction record to analyze: no purchases or sales, no sector breakdown of transaction activity, no attribution pattern across self, spouse, joint, dependent child, or unknown categories, and no basis for comparing recent activity with historical behavior because no historical transactions appear in the data. Readers interested in how disclosure activity compares across Congress more broadly should note that a zero-transaction record of this kind is common enough, affecting more than half of all sitting members, that it does not on its own signal anything unusual about an individual member's finances or compliance posture.

As of the August 22, 2026, measurement date, the most accurate statement about Thompson's disclosed trading activity is the simplest one: there is none on record.

Disclosure and Data Notes

This profile is generated from congressional transaction-disclosure data and interpreted using the Stop Trading on Congressional Knowledge Act of 2012 and the House Committee on Ethics financial disclosure instruction guide, both cited above. Figures describing the broader population of Congress, including counts of members with and without disclosed trades and members with a published score, are point-in-time measurements taken as of August 22, 2026, and August 21, 2026, respectively. This page does not constitute investment advice.