Merit Medical Systems Inc.
Congress has disclosed 1 buy and 1 sell of MMSI (Merit Medical Systems Inc.) in official financial disclosures, each linked to its original filing. A transparency record — not investment advice.
Activity Congressional Activity
Round-trip watch Still on the books
Members who disclosed buying MMSI and have not disclosed selling, versus their own entry (the most recent disclosed buy). "Open" means no disclosed sale — never "still holds" — and the % is unrealised, on paper. Not investment advice.
| Member | Entry (last buy) | Entry price | Now | vs entry | Status |
|---|---|---|---|---|---|
| Lisa McClain | 2025-07-22 | $84.47 | $86.24 | +2.1% | ↩ near entry |
Price as of 2026-10-30. Counted open while disclosed buys outnumber disclosed sells; tracks the price, not exact position size (amounts are ranges).
Fundamentals · FY2026 Valuation
Standard valuation multiples from SEC-reported GAAP financials (trailing twelve months), each compared to the median for —. We use reported GAAP, not forward or adjusted earnings, so our figures can sit higher than sites that do — especially for companies with falling profit. Relative context — not a target price or investment advice.
how it's calculated
how it's calculated
how it's calculated
2 trades Recent Congressional Trades
Two things to watch per trade: the disclosure lag (how many days passed before the trade was made public) and the price move in that window (how the stock moved during those non-public days). A sell followed by a price drop, or a buy followed by a rise, means well-timed trading — visible here in the open. Note: the Score measures how notable a trade is, not whether it made money — the price move is shown for context and isn't part of it.
| Politician | Chamber | Type | Owner | Date | Disclosure lag | Price move in that window | Amount | Score | Source |
|---|---|---|---|---|---|---|---|---|---|
| Lisa McClain | House | BUY ◆ insider divergence · moderate | Spouse · Charles Schwab Brokerage Account 924 | 2025-07-22 | 22 days | +2.0% | $1K–$15K 0.1% of NW |
63.9 | ↗ filing |
| Steve Chabot | House | SELL | Self | 2015-05-26 | 0 days | — | $15K–$50K | 93.7 | ↗ filing |
Corporate insiders · SEC Form 4 Insider Activity
What the company's own officers and directors did in MMSI — open-market purchases and sales from SEC Form 4 filings (option exercises, grants and tax withholding are excluded). This is context for the congressional activity above, never a buy/sell signal, and the two datasets are kept separate on purpose. Does convergence mean anything? →
Of the congressional trades in MMSI, 0 coincided with corporate insiders moving the same way within 60 days, and 1 with insiders moving the opposite way. This is co-occurrence only — whether it carries any edge is tested honestly on the convergence page.
| Date | Insider | Role | Type | Size | Source |
|---|---|---|---|---|---|
| 2026-08-24 | Peterson Neil W. | C-suite | SELL | $678K | ↗ EDGAR |
| 2026-08-04 | Peterson Neil W. | C-suite | SELL | $1.8M | ↗ EDGAR |
| 2026-05-11 | Smith Christian Adam | C-suite | BUY | $99K | ↗ EDGAR |
| 2026-05-07 | Lloyd Brian G. | C-suite | BUY | $125K | ↗ EDGAR |
| 2026-05-07 | Ward Lynne N. | Director | SELL | $313K | ↗ EDGAR |
| 2026-05-06 | Aronson Martha Goldberg | C-suite | BUY | $121K | ↗ EDGAR |
| 2026-05-06 | Parra Raul Jr. | C-suite | BUY | $92K | ↗ EDGAR |
| 2026-05-05 | Voigt Michel J. | C-suite | BUY | $136K | ↗ EDGAR |
| 2026-01-06 | Peterson Neil W. | C-suite | SELL 10b5-1 | $450K | ↗ EDGAR |
| 2025-11-25 | Lampropoulos Fred P. | Director | SELL | $880K | ↗ EDGAR |
| 2025-11-21 | Lampropoulos Fred P. | Director | SELL | $2.2M | ↗ EDGAR |
| 2025-11-20 | Lampropoulos Fred P. | Director | SELL | $1.7M | ↗ EDGAR |
| 2025-11-18 | Lampropoulos Fred P. | Director | SELL | $424K | ↗ EDGAR |
| 2025-08-22 | Ward Lynne N. | Director | SELL | $266K | ↗ EDGAR |
| 2025-08-11 | Ward Lynne N. | Director | SELL | $207K | ↗ EDGAR |
| 2025-06-13 | Parra Raul Jr. | C-suite | SELL | $1.4M | ↗ EDGAR |
| 2025-06-10 | Lampropoulos Fred P. | C-suite | SELL | $38K | ↗ EDGAR |
| 2025-06-05 | Lampropoulos Fred P. | C-suite | SELL | $952K | ↗ EDGAR |
| 2025-06-02 | McDonnell Michael R. | Director | SELL 10b5-1 | $165K | ↗ EDGAR |
| 2025-05-30 | Lampropoulos Fred P. | C-suite | SELL | $951K | ↗ EDGAR |
| 2025-05-30 | Floyd David | Director | SELL 10b5-1 | $331K | ↗ EDGAR |
| 2025-05-30 | McDonnell Michael R. | Director | SELL 10b5-1 | $165K | ↗ EDGAR |
| 2025-05-27 | LAMPROPOULOS FRED P | C-suite | SELL | $1.9M | ↗ EDGAR |
| 2025-05-15 | Millner F. Ann | Director | SELL 10b5-1 | $2.0M | ↗ EDGAR |
| 2025-04-01 | Peterson Neil | C-suite | SELL 10b5-1 | $523K | ↗ EDGAR |
Combined timeline — Congress & insiders
Both sets of trades on one timeline, newest first, so you can see when they lined up. Congress vs ◆ insider.
| Date | Who | Type | Size | |
|---|---|---|---|---|
| ◆ insider | 2026-08-24 | Peterson Neil W. C-suite | SELL | $678K |
| ◆ insider | 2026-08-04 | Peterson Neil W. C-suite | SELL | $1.8M |
| ◆ insider | 2026-05-11 | Smith Christian Adam C-suite | BUY | $99K |
| ◆ insider | 2026-05-07 | Lloyd Brian G. C-suite | BUY | $125K |
| ◆ insider | 2026-05-07 | Ward Lynne N. Director | SELL | $313K |
| ◆ insider | 2026-05-06 | Aronson Martha Goldberg C-suite | BUY | $121K |
| ◆ insider | 2026-05-06 | Parra Raul Jr. C-suite | BUY | $92K |
| ◆ insider | 2026-05-05 | Voigt Michel J. C-suite | BUY | $136K |
| ◆ insider | 2026-01-06 | Peterson Neil W. C-suite 10b5-1 | SELL | $450K |
| ◆ insider | 2025-11-25 | Lampropoulos Fred P. Director | SELL | $880K |
| ◆ insider | 2025-11-21 | Lampropoulos Fred P. Director | SELL | $2.2M |
| ◆ insider | 2025-11-20 | Lampropoulos Fred P. Director | SELL | $1.7M |
| ◆ insider | 2025-11-18 | Lampropoulos Fred P. Director | SELL | $424K |
| ◆ insider | 2025-08-22 | Ward Lynne N. Director | SELL | $266K |
| ◆ insider | 2025-08-11 | Ward Lynne N. Director | SELL | $207K |
| Congress | 2025-07-22 | Lisa McClain | BUY | $1K–$15K |
| ◆ insider | 2025-06-13 | Parra Raul Jr. C-suite | SELL | $1.4M |
| ◆ insider | 2025-06-10 | Lampropoulos Fred P. C-suite | SELL | $38K |
| ◆ insider | 2025-06-05 | Lampropoulos Fred P. C-suite | SELL | $952K |
| ◆ insider | 2025-06-02 | McDonnell Michael R. Director 10b5-1 | SELL | $165K |
| ◆ insider | 2025-05-30 | Lampropoulos Fred P. C-suite | SELL | $951K |
| ◆ insider | 2025-05-30 | Floyd David Director 10b5-1 | SELL | $331K |
| ◆ insider | 2025-05-30 | McDonnell Michael R. Director 10b5-1 | SELL | $165K |
| ◆ insider | 2025-05-27 | LAMPROPOULOS FRED P C-suite | SELL | $1.9M |
FAQ Common questions
How much has Congress traded MMSI?
1 disclosed buys and 1 sells of MMSI (Merit Medical Systems Inc.) appear in official congressional financial disclosures.
Is it legal for members of Congress to trade MMSI?
Members of Congress may trade stocks but must disclose it under the STOCK Act. QuantCapitol tracks those public disclosures for transparency — nothing here is an accusation of wrongdoing or investment advice.
Where does this data come from?
Official US House Clerk and Senate electronic financial disclosures. Every trade links back to its original filing so you can verify it yourself.