Massivemarkets

SEC Form 4

Merit Medical Systems Inc (MMSI) insider trading

In the 12 months to Oct 23, 2026, 3 MMSI insiders reported open-market sales of $8.5M across 8 filings; 5 insiders bought $573.3K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$8.5M
8 filings · 3 insiders
Open-market purchases
$573.3K
5 filings
Pre-arranged sales (10b5-1)
1 of 8
$450.0K of $8.5M sold (5%)

Who traded MMSI, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

MMSI daily close from Oct 23, 2025 to Oct 22, 2026, between $60.31 and $93.94, last $93.94. 8 sale and 5 purchase filings by 8 insiders, marked at their filing dates. Fred P. Lampropoulos, Executive Chairman: sold $5.2M across 4 filings, first filed Nov 20, 2025, last Nov 26, 2025. Neil W. Peterson, CHIEF OPERATING OFFICER: sold $3.0M across 3 filings, first filed Jan 8, 2026, last Aug 25, 2026. Lynne N. Ward, Director: sold $313.0K across 1 filing, first filed May 11, 2026, last May 11, 2026. Michel J. Voigt, CHIEF HUMAN RESOURCES OFFICER: bought $136.5K across 1 filing, first filed May 7, 2026, last May 7, 2026. Brian G. Lloyd, CHIEF LEGAL OFFICER, SECRETARY: bought $125.3K across 1 filing, first filed May 11, 2026, last May 11, 2026. Martha Goldberg Aronson, President and CEO: bought $120.9K across 1 filing, first filed May 7, 2026, last May 7, 2026. Christian Adam Smith, Chief Commercial Officer: bought $99.2K across 1 filing, first filed May 13, 2026, last May 13, 2026. Raul Parra JR., CFO AND TREASURER: bought $91.5K across 1 filing, first filed May 7, 2026, last May 7, 2026.

Largest mark · tap a row for others

Fred P. Lampropoulos · Executive Chairman

Filing 1 of 4 within a week · $5,189,907 total

Sale $424,130

5,000 shares at $84.83 avg

Filed Nov 20, 2025 · traded Nov 18

Close on filing date $84.88

MMSI daily closelast $93.94

Fred P. Lampropoulos · Executive Chairman

$5.2M sold

Neil W. Peterson · CHIEF OPERATING OFFICER

$3.0M sold

Lynne N. Ward · Director

$313.0K sold

Michel J. Voigt · CHIEF HUMAN RESOURCES OFFICER

$136.5K bought

Brian G. Lloyd · CHIEF LEGAL OFFICER, SECRETARY

$125.3K bought

Martha Goldberg Aronson · President and CEO

$120.9K bought

Christian Adam Smith · Chief Commercial Officer

$99.2K bought

Raul Parra JR. · CFO AND TREASURER

$91.5K bought
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Merit Medical Systems Inc's CEO sold stock?

No. Martha Goldberg Aronson (CEO) made no open-market sales filed as CEO in the last 12 months.

Open-market trades

13 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Fred P. LampropoulosExecutive Chairman$5.2M—4—
Neil W. PetersonCHIEF OPERATING OFFICER$3.0M—315% of sales
Lynne N. WardDirector$313.0K—1—
Michel J. VoigtCHIEF HUMAN RESOURCES OFFICER—$136.5K1—
Brian G. LloydCHIEF LEGAL OFFICER, SECRETARY—$125.3K1—
Martha Goldberg AronsonPresident and CEO—$120.9K1—
Christian Adam SmithChief Commercial Officer—$99.2K1—
Raul Parra JR.CFO AND TREASURER—$91.5K1—
Other insider activity (not market trades) · 36 records
  • Option exercises3 records
  • Tax withholding5 records
  • Grants and awards25 records
  • Gifts3 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

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Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for MMSI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.