Merit Medical Sys (MMSI): Congress and insider trades
Who in Congress and inside the company traded MMSI, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Merit Medical Sys (MMSI) is a listed stock on NASDAQ.
- Insiders filed 3 open market buys worth $349K and 2 sells worth $2.5M, the latest filed 2026-08-25 (25 August 2026).
- 1 cluster buy of MMSI by three or more insiders within 30 days.
- Across 3 scored buys, Insiders averaged +38.7% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to tell.
- Data as of 2026-09-29 (29 September 2026).
Insider trades in MMSI
as of 2026-08-25| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 25 Aug 2026 | Peterson Neil W. | sell | 7,500 | $90.45 | $678K | n/a |
| 5 Aug 2026 | Peterson Neil W. | sell | 21,449 | $85.00 | $1.8M | n/a |
| 7 May 2026 | Aronson Martha Goldberg | buy | 2,000 | $60.44 | $121K | +38.7% |
| 7 May 2026 | Voigt Michel J. | buy | 2,250 | $60.65 | $136K | +38.7% |
| 7 May 2026 | Parra Raul Jr. | buy | 1,500 | $61.01 | $91.5K | +38.7% |
Nothing matches that search.
Cluster buys in MMSI
| Last filed | Stock | Insiders | Trades | Total value | Days spanned | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 7 May 2026 | MMSI | 3 | 3 | $349K | 0 | +38.7% |
Related pages
Frequently asked questions
Who has bought MMSI?
0 Congress buys by 0 members and 3 insider buys are on file. The tables on this page list every one.
Did buying MMSI after a disclosure beat the market?
Across 3 scored buys, Insiders averaged +38.7% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to tell. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.