Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.
Symbol
MMSILatest filing 15 Jun 2026
Company Read
Net acquisition
MMSI has 21 stored insider filings.
Acquisitions account for 76.2% of classified filings and disposals account for 23.8%.
The largest stored filing is $717.3K from GUNDERSON, THOMAS J..
Latest filing
15 Jun 2026most recent stored row
Largest filing
$717.3Kreported transaction value
Total filings
21stored transaction rows
Acquisition value
$1.7M16 acquisitions
Disposal value
$313.0K5 disposals
Net value
$1.4Macquisitions minus disposals
Filing cadence
Last 12 active months
May 202619
Jun 20262
Acquisitions 76.2% · Disposals 23.8%
May 2026$2.0M
Jun 2026$0
Executive concentration
By filing count
GUNDERSON, THOMAS J.Director · 5 filings
WARD, LYNNE N.Director · 2 filings
VOIGT, MICHEL J.CHIEF HUMAN RESOURCES OFFICER · 2 filings
LLOYD, BRIAN G.CHIEF LEGAL OFFICER, SECRETARY · 2 filings
ARONSON, MARTHA GOLDBERGDirector, President and CEO · 1 filings
SMITH, CHRISTIAN ADAMChief Commercial Officer · 1 filings
PARRA, RAUL JR.CFO AND TREASURER · 1 filings
WARD, SCOTT R.Director · 1 filings
Market Context
MMSI weekly market snapshot
Week 31 Jul 2026
Latest close
85.01 USDstored weekly close
1-week move
+14.4%latest weekly bar
13-week move
+19.6%medium-term context
Relative Strength
-1.0Sharemaestro indicator
Fair value gap
+1.8%price vs fair value
Trend signal
0smoothed trend state
Transaction History
Latest insider filings for MMSI
Showing 1-21 of 21
Date
15 Jun 2026
Insider
VOIGT, MICHEL J.CHIEF HUMAN RESOURCES OFFICER
Side
Disposal
Shares
65
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
5 Jun 2026
Insider
LLOYD, BRIAN G.CHIEF LEGAL OFFICER, SECRETARY
Side
Disposal
Shares
2000
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
20 May 2026
Insider
GUNDERSON, THOMAS J.Director
Side
Acquisition
Shares
13750
Price
52.17
Value
717338
Security
Common Stock, No Par Value
Date
20 May 2026
Insider
GUNDERSON, THOMAS J.Director
Side
Acquisition
Shares
7500
Price
52.17
Value
391275
Security
Common Stock, No Par Value
Date
20 May 2026
Insider
GUNDERSON, THOMAS J.Director
Side
Disposal
Shares
7500
Price
0.00
Value
0
Security
Non-qualified stock options (right to buy)
Date
20 May 2026
Insider
GUNDERSON, THOMAS J.Director
Side
Disposal
Shares
13750
Price
0.00
Value
0
Security
Non-qualified stock options (right to buy)
Date
18 May 2026
Insider
CARPENTER, LONNY J.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
EVANS, STEPHEN C.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
GUNDERSON, THOMAS J.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
KAISER, LAURA S.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
MCDONNELL, MICHAEL R.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
MILLNER, F. ANN ED.D.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
PEREZ, SILVIA M.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
WARD, LYNNE N.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
18 May 2026
Insider
WARD, SCOTT R.Director
Side
Acquisition
Shares
3457
Price
0.00
Value
0
Security
Common Stock, No Par Value
Date
11 May 2026
Insider
SMITH, CHRISTIAN ADAMChief Commercial Officer
Side
Acquisition
Shares
1626
Price
61.00
Value
99186
Security
Common Stock, No Par Value
Date
7 May 2026
Insider
WARD, LYNNE N.Director
Side
Disposal
Shares
5000
Price
62.61
Value
313035
Security
Common Stock, No Par Value
Date
7 May 2026
Insider
LLOYD, BRIAN G.CHIEF LEGAL OFFICER, SECRETARY
Side
Acquisition
Shares
2000
Price
62.63
Value
125250
Security
Common Stock, No Par Value
Date
6 May 2026
Insider
ARONSON, MARTHA GOLDBERGDirector, President and CEO
Side
Acquisition
Shares
2000
Price
60.44
Value
120880
Security
Common Stock, No Par Value
Date
6 May 2026
Insider
PARRA, RAUL JR.CFO AND TREASURER
Side
Acquisition
Shares
1500
Price
61.01
Value
91515
Security
Common Stock, No Par Value
Date
5 May 2026
Insider
VOIGT, MICHEL J.CHIEF HUMAN RESOURCES OFFICER
Side
Acquisition
Shares
2250
Price
60.65
Value
136463
Security
Common Stock, No Par Value
Plain English Guide
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