Insider Trading for MMSI
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
No insider transactions in the past 30 days.
Quarterly Activity (3 Months)
Acquisitions: 61.7K shares
Dispositions: 14.6K shares
Net: 47.2K shares
Insiders have been net buyers over the quarter, suggesting potential confidence in medium-term business fundamentals.
Key Insider Activity: Oct 4, 2022 to Jun 15, 2026
Lampropoulos Fred P.
OtherUnknown
-47.5K shares
13 transactions
LAMPROPOULOS FRED P
ExecutiveChief Executive Officer
-54.3K shares
5 transactions
Smith Christian Adam
ExecutiveCorporate Officer
-12.3K shares
9 transactions
Parra Raul Jr.
ExecutiveChief Financial Officer
+19.5K shares
10 transactions
Millner F. Ann
DirectorDirector
-5.3K shares
4 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Jun 15, 2026 | Voigt Michel J. | EOfficer: Chief Human Resources Officer | Gift | 65 | $0.00 | $0.00 | 46.1K | View |
| Jun 5, 2026 | Lloyd Brian G. | EOfficer: Chief Legal Officer, Secretary | Gift | 2.0K | $0.00 | $0.00 | 60.1K | View |
| May 20, 2026 | Gunderson Thomas J. | DDirector | Exercise | 7.5K | $52.17 | $391,275.00 | 60.7K | View |
May 20, 2026 | Locked | — | — | — | — | — | — | — |
May 20, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 18, 2026 | Locked | — | — | — | — | — | — | — |
May 13, 2026 | Locked | — | — | — | — | — | — | — |
May 11, 2026 | Locked | — | — | — | — | — | — | — |
May 7, 2026 | Locked | — | — | — | — | — | — | — |
May 7, 2026 | Locked | — | — | — | — | — | — | — |
May 6, 2026 | Locked | — | — | — | — | — | — | — |
May 6, 2026 | Locked | — | — | — | — | — | — | — |
May 5, 2026 | Locked | — | — | — | — | — | — | — |
Apr 2, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Feb 26, 2026 | Locked | — | — | — | — | — | — | — |
Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
Jan 6, 2026 | Locked | — | — | — | — | — | — | — |
Nov 25, 2025 | Locked | — | — | — | — | — | — | — |
Nov 21, 2025 | Locked | — | — | — | — | — | — | — |
Nov 20, 2025 | Locked | — | — | — | — | — | — | — |
Nov 18, 2025 | Locked | — | — | — | — | — | — | — |
Oct 3, 2025 | Locked | — | — | — | — | — | — | — |
Oct 3, 2025 | Locked | — | — | — | — | — | — | — |
Aug 29, 2025 | Locked | — | — | — | — | — | — | — |
Aug 29, 2025 | Locked | — | — | — | — | — | — | — |
Aug 29, 2025 | Locked | — | — | — | — | — | — | — |
Aug 29, 2025 | Locked | — | — | — | — | — | — | — |
Aug 29, 2025 | Locked | — | — | — | — | — | — | — |
Aug 22, 2025 | Locked | — | — | — | — | — | — | — |
Aug 22, 2025 | Locked | — | — | — | — | — | — | — |
Aug 22, 2025 | Locked | — | — | — | — | — | — | — |
Aug 11, 2025 | Locked | — | — | — | — | — | — | — |
Aug 11, 2025 | Locked | — | — | — | — | — | — | — |
Aug 11, 2025 | Locked | — | — | — | — | — | — | — |
Jun 13, 2025 | Locked | — | — | — | — | — | — | — |
Jun 13, 2025 | Locked | — | — | — | — | — | — | — |
Jun 13, 2025 | Locked | — | — | — | — | — | — | — |
Jun 13, 2025 | Locked | — | — | — | — | — | — | — |
Jun 13, 2025 | Locked | — | — | — | — | — | — | — |
Jun 10, 2025 | Locked | — | — | — | — | — | — | — |
Jun 5, 2025 | Locked | — | — | — | — | — | — | — |
Jun 2, 2025 | Locked | — | — | — | — | — | — | — |
Jun 2, 2025 | Locked | — | — | — | — | — | — | — |
May 30, 2025 | Locked | — | — | — | — | — | — | — |
May 30, 2025 | Locked | — | — | — | — | — | — | — |
May 30, 2025 | Locked | — | — | — | — | — | — | — |
May 27, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
May 15, 2025 | Locked | — | — | — | — | — | — | — |
Apr 1, 2025 | Locked | — | — | — | — | — | — | — |
Apr 1, 2025 | Locked | — | — | — | — | — | — | — |
Apr 1, 2025 | Locked | — | — | — | — | — | — | — |
Mar 13, 2025 | Locked | — | — | — | — | — | — | — |
Mar 5, 2025 | Locked | — | — | — | — | — | — | — |
Mar 5, 2025 | Locked | — | — | — | — | — | — | — |
Mar 5, 2025 | Locked | — | — | — | — | — | — | — |
Mar 5, 2025 | Locked | — | — | — | — | — | — | — |
Mar 4, 2025 | Locked | — | — | — | — | — | — | — |
Mar 31, 2024 | Locked | — | — | — | — | — | — | — |
Oct 4, 2022 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net buyers of MMSI stock, which is typically a strong positive signal.

