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Merit Medical Systems Inc. (MMSI)

Merit Medical Systems Inc. (MMSI) Insider Trading

Directors, officers and holders of more than 10% of MMSI report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 160 transactions on file: 5 with code P, 6 with code S and 39 with other codes.

DateInsiderCodeShares
Sep 4, 2026Lewis SheriA Award8,371
Aug 24, 2026Peterson Neil W.S Sale7,500
Aug 24, 2026Voigt Michel J.G Gift650
Aug 4, 2026Peterson Neil W.S Sale21,449
Jun 15, 2026Voigt Michel J.G Gift65
Jun 5, 2026Lloyd Brian G.G Gift2,000
May 20, 2026Gunderson Thomas J.M Exercise13,750
May 20, 2026Gunderson Thomas J.M Exercise13,750
May 20, 2026Gunderson Thomas J.M Exercise7,500
May 20, 2026Gunderson Thomas J.M Exercise7,500
May 18, 2026Kaiser Laura S.A Award3,457
May 18, 2026Ward Lynne N.A Award3,457
May 18, 2026Perez Silvia M.A Award3,457
May 18, 2026Millner F. AnnA Award3,457
May 18, 2026Carpenter Lonny J.A Award3,457
May 18, 2026Evans Stephen C.A Award3,457
May 18, 2026Gunderson Thomas J.A Award3,457
May 18, 2026McDonnell Michael R.A Award3,457
May 18, 2026Ward Scott R.A Award3,457
May 11, 2026Smith Christian AdamP Purchase1,626
May 7, 2026Lloyd Brian G.P Purchase2,000
May 7, 2026Ward Lynne N.S Sale5,000
May 6, 2026Aronson Martha GoldbergP Purchase2,000
May 6, 2026Parra Raul Jr.P Purchase1,500
May 5, 2026Voigt Michel J.P Purchase2,250
Feb 26, 2026Lloyd Brian G.A Award10,254
Feb 26, 2026Aronson Martha GoldbergA Award28,198
Feb 26, 2026Voigt Michel J.A Award7,690
Feb 26, 2026Voigt Michel J.F Tax Payment6,698
Feb 26, 2026Voigt Michel J.A Award6,409
Feb 26, 2026Peterson Neil W.A Award7,690
Feb 26, 2026Lloyd Brian G.F Tax Payment5,778
Feb 26, 2026Parra Raul Jr.A Award17,002
Feb 26, 2026Peterson Neil W.A Award17,002
Feb 26, 2026Lloyd Brian G.A Award17,002
Feb 26, 2026Smith Christian AdamA Award6,762
Feb 26, 2026Smith Christian AdamA Award6,409
Feb 26, 2026Smith Christian AdamF Tax Payment2,018
Feb 26, 2026Voigt Michel J.A Award17,002
Feb 26, 2026Smith Christian AdamA Award8,203
Feb 26, 2026Parra Raul Jr.A Award12,305
Feb 26, 2026Lloyd Brian G.A Award6,409
Feb 26, 2026Peterson Neil W.F Tax Payment6,061
Feb 26, 2026Parra Raul Jr.A Award9,613
Feb 26, 2026Parra Raul Jr.F Tax Payment5,778
Jan 6, 2026Peterson Neil W.M Exercise5,000
Jan 6, 2026Peterson Neil W.S Sale5,000
Jan 6, 2026Peterson Neil W.M Exercise5,000
Nov 25, 2025Lampropoulos Fred P.S Sale10,000
Nov 21, 2025Lampropoulos Fred P.S Sale25,000

The full Form 4 history is on the MMSI company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.