Insider trading

Period: 120 months Stock: MMSI Share of holding: 50% or more × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

46 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

46 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

46 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

46 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
46 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
46 decisions over 120 months Remove this filter
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

46 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
11 May 2026
Smith Christian Adam Chief Commercial Officer · indirect
Bought
$99.19K 1,626 at 61.00
274%
First buy on file
5 May 2026
Voigt Michel J. CHIEF HUMAN RESOURCES OFFICER · indirect
Bought
$136.46K 2,250 at 60.65
×150
First buy on file
3 Mar 2025
Evans Stephen C. Director
Sold at will
$526.55K 5,000 at 105.31
51.8%
Sold half or more
5 Nov 2024
Parra Raul Jr. CFO AND TREASURER
Sold at will
$2.91M 29,646 at 98.02
64.4%
Sold half or more
22 Aug 2023
Peterson Neil W. CHIEF OPERATING OFFICER
Sold at will
$543.29K 8,000 at 67.91
100%
Sold half or more
16 Mar 2023
Peterson Neil W. CHIEF OPERATING OFFICER
Sold at will
$550.00K 8,000 at 68.75
100%
Sold half or more
14 Mar 2023
Voigt Michel J. CHIEF HUMAN RESOURCES OFFICER
Sold, plan not stated
$136.62K 2,000 at 68.31
79.5%
Sold half or more
8 Mar 2023
Ward Lynne N. Director
Sold, plan not stated
$772.79K 11,585 at 66.71
66.0%
Sold half or more
2 Mar 2023
Parra Raul Jr. CFO AND TREASURER
Sold, plan not stated
$839.02K 11,986 at 70.00
60.9%
Sold half or more
11 Aug 2022
Lloyd Brian G. CHIEF LEGAL OFFICER, SECRETARY
Sold, plan not stated
$1.66M 26,807 at 62.03
69.1%
Sold half or more
10 Aug 2022
Frost Ronald CHIEF OPERATING OFFICER
Sold, plan not stated
$1.24M 20,000 at 62.10
56.9%
Sold half or more
1 Aug 2022
Peterson Neil W. CHIEF OPERATING OFFICER
Sold, plan not stated
$232.40K 4,000 at 58.10
100%
Sold half or more
15 Sep 2021
Lloyd Brian G. CHIEF LEGAL OFFICER, SECRETARY
Sold, plan not stated
$1.12M 15,546 at 71.88
69.9%
Sold half or more
15 Jun 2021
Frost Ronald CHIEF OPERATING OFFICER
Sold, plan not stated
$734.85K 11,887 at 61.82
53.2%
Sold half or more
25 May 2021
Parra Raul Jr. CFO AND TREASURER
Sold, plan not stated
$318.80K 5,000 at 63.76
68.1%
Sold half or more
21 May 2021
Wright Joseph PRESIDENT, INTERNATIONAL
Sold, plan not stated
$930.45K 15,000 at 62.03
54.9%
Sold half or more
16 Mar 2021
Frost Ronald CHIEF OPERATING OFFICER
Sold, plan not stated
$303.00K 5,000 at 60.60
68.1%
Sold half or more
12 Mar 2021
Frost Ronald CHIEF OPERATING OFFICER
Sold, plan not stated
$1.49M 25,000 at 59.58
77.3%
Sold half or more
12 Mar 2021
Lampropoulos Justin J. PRESIDENT, EMEA
Sold, plan not stated
$1.49M 25,000 at 59.58
91.4%
Sold half or more
12 Mar 2021
Lloyd Brian G. CHIEF LEGAL OFFICER, SECRETARY
Sold, plan not stated
$732.03K 12,303 at 59.50
54.8%
Sold half or more
4 Aug 2020
Floyd David Director · indirect
Bought
$49.97K 1,159 at 43.11
273%
First buy on file
1 Jun 2020
Sold, plan not stated
$621.00K 13,800 at 45.00
100%
Sold half or more
20 May 2020
Lampropoulos Fred P. PRESIDENT AND CEO · indirect
Sold, plan not stated
$220.00K 5,000 at 44.00
79.8%
Sold half or more
4 Mar 2020
Sold, plan not stated
$571.05K 15,000 at 38.07
86.5%
Sold half or more
5 Nov 2019
Parra Raul Jr. CFO & Treasurer · indirect
Bought
$64.39K 2,525 at 25.50
545%
First buy on file
6 Sep 2019
Lampropoulos Fred P. President & CEO · indirect
Sold, plan not stated
$359.39K 11,817 at 30.41
90.3%
Sold half or more
19 Jun 2019
Lampropoulos Justin J. EVP GLOBAL SALES, MKTG & STGY
Sold, plan not stated
$486.93K 8,000 at 60.87
100%
Sold half or more
19 Jun 2019
Karras Nolan E. Director
Sold, plan not stated
$243.64K 4,000 at 60.91
50.0%
Sold half or more
7 May 2019
Parra Raul Jr. Chief Financial Officer
Sold, plan not stated
$114.21K 2,000 at 57.11
100%
Sold half or more
14 Mar 2019
Sold, plan not stated
$1.21M 20,000 at 60.44
58.8%
Sold half or more
14 Mar 2019
Parra Raul Jr. Chief Financial Officer
Sold, plan not stated
$301.02K 5,000 at 60.20
100%
Sold half or more
29 Nov 2018
Karras Nolan E. Director
Sold, plan not stated
$122.55K 2,000 at 61.28
50.0%
Sold half or more
16 Nov 2018
Lampropoulos Justin J. EVP GLOBAL SALES, MKTG & STGY
Sold, plan not stated
$1.22M 20,000 at 61.01
100%
Sold half or more
16 Nov 2018
Frost Ronald Chief Operating Officer
Sold, plan not stated
$290.75K 4,743 at 61.30
100%
Sold half or more
7 Nov 2018
Frost Ronald Chief Operating Officer
Sold, plan not stated
$322.30K 5,257 at 61.31
100%
Sold half or more
31 Oct 2018
Sold, plan not stated
$546.05K 9,593 at 56.92
53.6%
Sold half or more
14 Jun 2018
Wright Joseph President, International
Sold, plan not stated
$498.85K 10,072 at 49.53
100%
Sold half or more
13 Jun 2018
Wright Joseph President, International
Sold, plan not stated
$491.31K 9,928 at 49.49
100%
Sold half or more
5 Jun 2018
Lampropoulos Justin J. EVP GLOBAL SALES, MKTG & STGY
Sold, plan not stated
$718.33K 14,000 at 51.31
100%
Sold half or more
7 Aug 2017
ANDERSON A SCOTT Director
Sold, plan not stated
$1.03M 25,000 at 41.15
79.6%
Sold half or more
1 Aug 2017
EDELMAN RICHARD W See Footnote (1)
Sold, plan not stated
$1.19M 29,000 at 41.19
82.9%
Sold half or more
30 Jun 2017
EDELMAN RICHARD W See Footnote (1)
Sold, plan not stated
$752.38K 20,000 at 37.62
57.1%
Sold half or more
28 Jun 2017
Sold, plan not stated
$257.30K 6,744 at 38.15
72.9%
Sold half or more
27 Jun 2017
Karras Nolan E. Director
Sold, plan not stated
$260.06K 7,000 at 37.15
87.5%
Sold half or more
15 May 2017
Sold, plan not stated
$546.29K 16,090 at 33.95
58.9%
Sold half or more
9 Dec 2016
Frost Ronald Chief Operating Officer
Sold, plan not stated
$393.75K 15,000 at 26.25
100%
Sold half or more
Showing 1–46 of 46.