MMSI
MERIT MEDICAL SYSTEMS INC · Healthcare · Market cap $5.2B
Insiders sold $2.5M net in the last 90 days ·1 seller, 0 buyers· latest Form 4 filed Aug 25, 2026
Insider Buying
$573K
reported purchases (SEC code P)
Insider Selling
$8.5M
reported sales (SEC code S)
Unique Insiders
8
in the rolling window
Latest filing
Sep 9, 2026
Peterson Neil W.
MERIT MEDICAL SYSTEMS INC (MMSI) has 35 SEC Form 4 filings (51 transaction rows) in the rolling window, disclosed by 8 distinct insiders. Most recent filing: Sep 9, 2026.
Inside the rolling window, 8 insiders at MERIT MEDICAL SYSTEMS INC reported 5 open-market purchases totaling $573K and 8 open-market sales totaling $8.5M. The most active filer is Executive Chairman Lampropoulos Fred P. with 4 filings. Insiders have net sold $2.2M over the trailing 6 months. The most recent open-market filing is a sale of 7,500 shares by CHIEF OPERATING OFFICER Peterson Neil W., dated Aug 24, 2026, worth $678K.
- Industry:Medical - Instruments & Supplies
- CEO:Martha Goldberg Aronson
- Employees:7,400
- HQ:South Jordan, UT, US
- IPO:1990-05-14
| Source | |||||||
|---|---|---|---|---|---|---|---|
| CHIEF OPERATING OFFICER | Sale | 7,500 | $678K | Aug 25 | -4.5% | SEC ↗ | |
Peterson Neil W.First in 7 months | CHIEF OPERATING OFFICER | Sale | 21,449 | $1.8M | Aug 5 | -0.2% | SEC ↗ |
Smith Christian AdamFirst filing | Chief Commercial Officer | Purchase | 1,626 | $99K | May 13 | +39.0% | SEC ↗ |
Ward Lynne N.First filing | Director | Sale | 5,000 | $313K | May 11 | +44.3% | SEC ↗ |
Lloyd Brian G.First filing | CHIEF LEGAL OFFICER, SECRETARY | Purchase | 2,000 | $125K | May 11 | +44.3% | SEC ↗ |
Parra Raul Jr.First filing | CFO AND TREASURER | Purchase | 1,500 | $92K | May 7 | +39.6% | SEC ↗ |
Voigt Michel J.First filing | CHIEF HUMAN RESOURCES OFFICER | Purchase | 2,250 | $136K | May 7 | +39.6% | SEC ↗ |
Aronson Martha GoldbergFirst filing | President and CEO | Purchase | 2,000 | $121K | May 7 | +39.6% | SEC ↗ |
Peterson Neil W.First filing | CHIEF OPERATING OFFICER | Sale | 5,000 | $450K | Jan 8 | -6.6% | SEC ↗ |
| Executive Chairman | Sale | 10,000 | $880K | Nov 26 | -0.4% | SEC ↗ | |
| Executive Chairman | Sale | 25,000 | $2.2M | Nov 24 | — | SEC ↗ | |
| Executive Chairman | Sale | 20,000 | $1.7M | Nov 21 | — | SEC ↗ | |
Lampropoulos Fred P.First filing | Executive Chairman | Sale | 5,000 | $424K | Nov 20 | — | SEC ↗ |
Congress trading MMSI 2 all-time
- RRep. Lisa C. McClainOther$1,001 - $15,0002025-09-25
- RRep. Lisa C. McClainPurchase$1,001 - $15,0002025-07-22
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does MMSI have?
MERIT MEDICAL SYSTEMS INC (MMSI) has 35 SEC Form 4 filings (51 transaction rows) in the rolling 365-day window, disclosed by 8 distinct insiders. Most recent filing: Sep 9, 2026.
When was the most recent SEC Form 4 filing for MMSI?
The most recent Form 4 filing for MMSI on Tracefour is dated Sep 9, 2026.
Who is the most active insider at MMSI?
The most active SEC Form 4 filer at MMSI in the rolling window is Executive Chairman Lampropoulos Fred P., with 4 filings.
What is the net insider flow at MMSI over the last 6 months?
Over the trailing 180 days, insiders at MMSI have net sold $2.2M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at MMSI in the current window?
Inside the rolling window, insiders at MMSI bought $573K and sold $8.5M based on SEC Form 4 filings.
Can I get alerts for MMSI insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at MERIT MEDICAL SYSTEMS INC (MMSI). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
MERIT MEDICAL SYSTEMS INC is in the Healthcare sector.