Mark Takano: No Disclosed Stock Trades

Mark Takano, the Democratic representative for California's 39th District, has no disclosed stock transactions on record. That absence is itself the data point worth starting with. Under the Stop Trading on Congressional Knowledge Act of 2012, members of Congress must report covered transactions above the reporting threshold no later than 30 days after learning of them and, in all cases, within 45 days of the transaction. The reporting framework requires a filing only when reportable activity occurs, and Takano's record places him among a sizable bloc of House members with no disclosed trades.

Across the sitting Congress, 276 of 537 members have no disclosed trades on file, including 237 of 437 sitting House members. Takano sits within that zero-disclosed-trade majority segment of his chamber. In the Senate, by contrast, 39 of 100 members show zero disclosed activity. The comparison does not explain why any member does or does not trade, but it does show that the share of members with no disclosed transactions differs between the two chambers.

What "no disclosed trades" actually means

A blank transaction history is not evidence of a blank financial life. It means no reportable purchase, sale, or exchange of an individual security has been recorded for Takano, a spouse, a joint account, a dependent child, or an unknown filer relationship under his name. The House Committee on Ethics financial disclosure instruction guide explains that purchases and sales of mutual funds, exchange-traded funds, excepted investment funds, and assets within federal retirement programs are excluded from periodic transaction reports. At the same time, reportable transactions exceeding $1,000 in assets within managed, brokerage, and other retirement accounts generally must be disclosed. A blank transaction record therefore does not establish an absence of other financial interests or activity outside the applicable reporting rules.

It is also worth being precise about what this record does not tell an investor. There is no first or last transaction date to anchor a timeline, and the purchase, sale, and other transaction counts are all zero. Every attribution category is likewise zero, meaning there is nothing here to attribute to Takano personally, a spouse, a joint account, a dependent child, or an unknown filer relationship. There are no sector tags, no most frequently disclosed securities, and no year-by-year history to compare. Any affirmative claim about specific securities, dates, amounts, sectors, or transaction trends would have to be invented, so the honest description of Takano's file is simply that it is empty of transaction data as of the latest measurement, taken August 22, 2026.

Where Takano stands in the broader disclosure landscape

Quantellect currently publishes a trading-behavior score for 76 members of Congress as of August 21, 2026, of whom 73 are sitting members. Takano is not among them. The absence reason on file is direct: no score row exists for him at the latest published scoring date. For Takano, the data supplies no formula version, subject-level scoring date, score, tier, coverage state, cohort rank, or cohort size. It does not provide a further reason for the missing row, so his absence from the scored group should not be treated as either a judgment about his conduct or proof of a data gap. The supported conclusion is narrower: Quantellect has no published score for Mark Takano in the latest scoring snapshot.

For readers using this page to compare members, the useful takeaway is structural rather than analytical. Takano's current-term window runs from January 3, 2025 through January 3, 2027, and his transaction record contains no entries during that window or before it. Should that change, a future disclosure could establish the first entries in what is currently a blank history, allowing this page to reflect purchase and sale activity, attribution, transaction dates, disclosure dates, and disclosed amount ranges exactly as filed. Until then, the accurate description of Mark Takano's disclosed trading activity is that there is none to describe, placing him alongside more than half of sitting House members whose records contain no disclosed trades.

Disclaimer

This page reflects transaction disclosures filed under the Stop Trading on Congressional Knowledge Act of 2012 and related House reporting requirements described in the House Committee on Ethics financial disclosure instruction guide. Disclosed transactions may concern the member, a spouse, a joint account, or a dependent child and are not necessarily personal investment decisions by the member. This page does not describe assets, financial interests, or activity outside the reportable transaction record. It is provided for informational purposes only and does not constitute investment advice or a recommendation to buy or sell any security.