MMSI Insider Trading

Net Buying · 180d
Open-Market Buys (180d)
$573K
5 insiders
Open-Market Sells (180d)
$313K
1 insiders
Net Insider Flow
$260K
open market, 180d
Reporting Insiders
6
6 P/S transactions
Build

Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 15, 2026Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERGift(G)65$0
Jun 5, 2026Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYGift(G)2K$0
May 20, 2026Gunderson Thomas J.DirectorOption exercise(M)8K$0
May 20, 2026Gunderson Thomas J.DirectorOption exercise(M)14K$0
May 20, 2026Gunderson Thomas J.DirectorOption exercise(M)8K$52.17$391K
May 20, 2026Gunderson Thomas J.DirectorOption exercise(M)14K$52.17$717K
May 18, 2026Ward Scott R.DirectorGrant(A)3K$0
May 18, 2026McDonnell Michael R.DirectorGrant(A)3K$0
May 18, 2026Kaiser Laura S.DirectorGrant(A)3K$0
May 18, 2026Perez Silvia M.DirectorGrant(A)3K$0
May 18, 2026Ward Lynne N.DirectorGrant(A)3K$0
May 18, 2026Millner F. Ann Ed.D.DirectorGrant(A)3K$0
May 18, 2026Gunderson Thomas J.DirectorGrant(A)3K$0
May 18, 2026Carpenter Lonny J.DirectorGrant(A)3K$0
May 18, 2026Evans Stephen C.DirectorGrant(A)3K$0
May 11, 2026Smith Christian AdamChief Commercial OfficerBuy(P)2K$61.00$99K
May 7, 2026Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYBuy(P)2K$62.63$125K
May 7, 2026Ward Lynne N.DirectorSell(S)5K$62.61$313K
May 6, 2026Parra Raul Jr.CFO AND TREASURERBuy(P)2K$61.01$92K
May 6, 2026Aronson Martha GoldbergPresident and CEO, DirectorBuy(P)2K$60.44$121K
May 5, 2026Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERBuy(P)2K$60.65$136K
Feb 26, 2026Aronson Martha GoldbergPresident and CEO, DirectorGrant(A)28K$0
Feb 26, 2026Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYGrant(A)6K$0
Feb 26, 2026Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYGrant(A)10K$0
Feb 26, 2026Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYTax withholding(F)6K$78.02$451K
Feb 26, 2026Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYGrant(A)17K$0
Feb 26, 2026Parra Raul Jr.CFO AND TREASURERGrant(A)17K$0
Feb 26, 2026Parra Raul Jr.CFO AND TREASURERGrant(A)10K$0
Feb 26, 2026Parra Raul Jr.CFO AND TREASURERGrant(A)12K$0
Feb 26, 2026Parra Raul Jr.CFO AND TREASURERTax withholding(F)6K$78.02$451K
Feb 26, 2026Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERGrant(A)6K$0
Feb 26, 2026Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERGrant(A)17K$0
Feb 26, 2026Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERTax withholding(F)7K$78.02$523K
Feb 26, 2026Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERGrant(A)8K$0
Feb 26, 2026Peterson Neil W.CHIEF OPERATING OFFICERTax withholding(F)6K$78.02$473K
Feb 26, 2026Peterson Neil W.CHIEF OPERATING OFFICERGrant(A)17K$0
Feb 26, 2026Peterson Neil W.CHIEF OPERATING OFFICERGrant(A)8K$0
Feb 26, 2026Smith Christian AdamChief Commercial OfficerTax withholding(F)2K$78.02$157K
Feb 26, 2026Smith Christian AdamChief Commercial OfficerGrant(A)7K$0
Feb 26, 2026Smith Christian AdamChief Commercial OfficerGrant(A)6K$0
Feb 26, 2026Smith Christian AdamChief Commercial OfficerGrant(A)8K$0
Jan 6, 2026Peterson Neil W.CHIEF OPERATING OFFICERSell(S)5K$90.00$450K
Jan 6, 2026Peterson Neil W.CHIEF OPERATING OFFICEROption exercise(M)5K$54.40$272K
Jan 6, 2026Peterson Neil W.CHIEF OPERATING OFFICEROption exercise(M)5K$0
Nov 25, 2025Lampropoulos Fred P.Executive Chairman, DirectorSell(S)10K$88.04$880K
Nov 21, 2025Lampropoulos Fred P.Executive Chairman, DirectorSell(S)25K$87.31$2.2M
Nov 20, 2025Lampropoulos Fred P.Executive Chairman, DirectorSell(S)20K$85.13$1.7M
Nov 18, 2025Lampropoulos Fred P.Executive Chairman, DirectorSell(S)5K$84.83$424K
Oct 3, 2025Aronson Martha GoldbergPresident and CEO, DirectorGrant(A)20K$0
Aug 29, 2025Lampropoulos Fred P.President and CEO, DirectorOption exercise(M)159K$55.73$8.9M
Aug 29, 2025Lampropoulos Fred P.President and CEO, DirectorOption exercise(M)2K$55.73$111K
Aug 29, 2025Lampropoulos Fred P.President and CEO, DirectorTax withholding(F)125K$90.54$11.3M
Aug 29, 2025Lampropoulos Fred P.President and CEO, DirectorTax withholding(F)1K$90.54$132K
Aug 29, 2025Lampropoulos Fred P.President and CEO, DirectorOption exercise(M)159K$0
Aug 29, 2025Lampropoulos Fred P.President and CEO, DirectorOption exercise(M)2K$0
Aug 22, 2025Ward Lynne N.DirectorOption exercise(M)3K$34.46$103K
Aug 22, 2025Ward Lynne N.DirectorSell(S)3K$88.56$266K
Aug 22, 2025Ward Lynne N.DirectorOption exercise(M)3K$0
Aug 11, 2025Ward Lynne N.DirectorOption exercise(M)2K$34.46$84K
Aug 11, 2025Ward Lynne N.DirectorSell(S)2K$84.89$207K
Aug 11, 2025Ward Lynne N.DirectorOption exercise(M)2K$0
Jun 13, 2025Parra Raul Jr.CFO AND TREASUREROption exercise(M)10K$56.25$545K
Jun 13, 2025Parra Raul Jr.CFO AND TREASURERSell(S)15K$93.75$1.4M
Jun 13, 2025Parra Raul Jr.CFO AND TREASUREROption exercise(M)6K$65.03$358K
Jun 13, 2025Parra Raul Jr.CFO AND TREASUREROption exercise(M)10K$0
Jun 13, 2025Parra Raul Jr.CFO AND TREASUREROption exercise(M)6K$0
Jun 10, 2025Lampropoulos Fred P.President and CEO, DirectorSell(S)400$95.61$38K
Jun 5, 2025Lampropoulos Fred P.President and CEO, DirectorSell(S)10K$95.19$952K
Jun 2, 2025McDonnell Michael R.DirectorSell(S)2K$94.51$165K
Jun 2, 2025Voigt Michel J.CHIEF HUMAN RESOURCES OFFICERGift(G)55$0
May 30, 2025Lampropoulos Fred P.President and CEO, DirectorSell(S)10K$95.12$951K
May 30, 2025Floyd DavidDirectorSell(S)4K$94.16$331K
May 30, 2025McDonnell Michael R.DirectorSell(S)2K$94.30$165K
May 27, 2025Lampropoulos Fred PPresident and CEO, DirectorSell(S)20K$96.54$1.9M
May 15, 2025Perez SilviaDirectorGrant(A)2K$0
May 15, 2025Carpenter Lonny JDirectorGrant(A)2K$0
May 15, 2025Evans Stephen C.DirectorGrant(A)2K$0
May 15, 2025Floyd DavidDirectorGrant(A)2K$0
May 15, 2025Floyd DavidDirectorGrant(A)2K$0
May 15, 2025Kaiser Laura S.DirectorGrant(A)2K$0
May 15, 2025McDonnell Michael RDirectorGrant(A)2K$0
May 15, 2025Ward LynneDirectorGrant(A)2K$0
May 15, 2025Gunderson Thomas JamesDirectorGrant(A)2K$0
May 15, 2025Millner F. AnnDirectorGrant(A)2K$0
May 15, 2025Millner F. AnnDirectorOption exercise(M)21K$52.17$1.1M
May 15, 2025Millner F. AnnDirectorSell(S)21K$96.47$2.0M
May 15, 2025Millner F. AnnDirectorOption exercise(M)14K$0
May 15, 2025Millner F. AnnDirectorOption exercise(M)8K$0
Apr 1, 2025Peterson NeilCHIEF OPERATING OFFICERSell(S)5K$104.53$523K
Apr 1, 2025Peterson NeilCHIEF OPERATING OFFICEROption exercise(M)5K$54.40$272K
Apr 1, 2025Peterson NeilCHIEF OPERATING OFFICEROption exercise(M)5K$0
Mar 13, 2025Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYGift(G)5K$0
Mar 5, 2025Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYOption exercise(M)30K$55.73$1.7M
Mar 5, 2025Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYSell(S)30K$102.90$3.1M
Mar 5, 2025Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARYOption exercise(M)30K$0
Mar 5, 2025Parra Raul Jr.CFO AND TREASURERSell(S)5K$103.58$555K
Mar 5, 2025Parra Raul Jr.CFO AND TREASUREROption exercise(M)5K$37.71$202K
Mar 5, 2025Parra Raul Jr.CFO AND TREASUREROption exercise(M)5K$0
Mar 5, 2025Lampropoulos Fred PPresident and CEO, DirectorSell(S)3K$103.75$269K
Mar 5, 2025Lampropoulos Fred PPresident and CEO, DirectorSell(S)20K$103.75$2.1M

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).