Mark B. Messmer: No Disclosed Stock Trades

Mark B. Messmer Congressional Trading Profile | Quantellect Mark B. Messmer Congressional Trading Profile

Mark B. Messmer, the Republican representing Indiana's 8th District, has no disclosed stock, bond, fund, or other securities transactions in Quantellect's data since his current term began on January 3, 2025. That is not an unusual record on Capitol Hill. As of August 22, 2026, 237 of the 437 sitting members of the House show zero disclosed trades, and across both chambers the figure stands at 276 of 537 sitting members. Messmer's record places him within that House majority rather than outside it.

What the disclosure record shows

Under the STOCK Act, members of Congress must report certain covered transactions involving themselves, their spouses, or their dependent children. A periodic transaction report is due by the earlier of 30 days after the filer becomes aware of the transaction or 45 days after the transaction date. The Stop Trading on Congressional Knowledge Act of 2012 established the prompt transaction-reporting requirement and provisions for public access to congressional financial disclosures. This reporting supplements annual financial disclosure requirements. The House Committee on Ethics publishes detailed instructions covering reportable transactions, transaction dates, value categories, and transactions involving a filer, spouse, or dependent child. The Committee's instruction guide lays out those mechanics in full.

For Messmer, Quantellect records zero disclosed transactions during the current term: no purchases, sales, or other transaction rows. The attribution totals are likewise zero for personal, spousal, joint, dependent-child, and unknown attribution codes. There is therefore no transaction-level issuer or sector pattern to trace. The transaction dataset is simply empty, placing Messmer among the many sitting members whose records contain no disclosed trades.

Where Messmer sits in the broader picture

The scale of the zero-disclosure population is worth noting for context. As of August 22, 2026, 237 of 437 sitting House members had no disclosed trades in the data, compared with 39 of the Senate's 100 members. Messmer's blank transaction record sits within a House cohort where the majority of members show no disclosed trading activity, rather than in a smaller minority surrounded by active filers.

Quantellect has not published a score for Messmer. At the latest published scoring date, August 21, 2026, 76 members across the House and Senate had a score, and 73 of them were sitting members. The database contains no score row for Messmer at that date, so no score, tier, coverage state, or cohort rank is presented for him.

Messmer's current term runs from January 3, 2025, to January 3, 2027, and this profile reflects Quantellect's transaction data measured on August 22, 2026. If a future periodic transaction report is filed and added to the dataset, it must be read using its actual transaction dates, distinct disclosure dates, disclosed amount ranges, and attribution labels. At present, none of those transaction-level fields exists for Messmer because his record contains no transaction rows.

About this profile and disclosure limitations

This page's transaction record is compiled from publicly available congressional financial disclosures. When transaction amounts are present, Quantellect presents them as disclosed ranges rather than treating them as exact trade values. Filings can reflect transactions involving a member, spouse, joint account, or dependent child rather than the member individually; a transaction with an unknown relationship is not attributed to a specific person. Zero disclosed transactions establish only that no transaction rows appear in Quantellect's data for Messmer's current term as of August 22, 2026, and do not establish why the record is empty. A missing score likewise means that no score row exists at the latest published scoring date and does not independently identify a cause. This profile does not constitute investment advice and should not be interpreted as a recommendation to buy, sell, or hold any security.