MMSI

Merit Medical Systems INC

Insider trading activity for Merit Medical Systems INC, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$2.5M

net selling

Bought(0 · 0 insiders): $0
Sold(2 · 1 insiders): $2.5M

Past 6 months

-$2.2M

net selling

Bought(5 · 5 insiders): $573.3K
Sold(3 · 2 insiders): $2.8M

Past 12 months

-$7.9M

net selling

Bought(5 · 5 insiders): $573.3K
Sold(8 · 3 insiders): $8.5M

Transaction history

The 83 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 4	Lewis Sheri	EVP of Global Operations	AGRANT	8,371	—	—	—	Open the original filing on SEC.gov
Aug 24	Peterson Neil W.	Chief Operating Officer	SSELL	7,500	$90.45	$678.4K	-29.3%	Open the original filing on SEC.gov
Aug 24	Voigt Michel J.	Chief Human Resources…	GGIFT	650	—	—	-1.4%	Open the original filing on SEC.gov
Aug 4	Peterson Neil W.	Chief Operating Officer	SSELL	21,449	$85.00	$1.8M	-45.6%	Open the original filing on SEC.gov
Jun 15	Voigt Michel J.	Chief Human Resources…	GGIFT	65	—	—	-0.1%	Open the original filing on SEC.gov
Jun 5	Lloyd Brian G.	Chief Legal Officer,…	GGIFT	2,000	—	—	-3.2%	Open the original filing on SEC.gov
May 20	Gunderson Thomas J.	Director	MEXER◆	7,500	—	—	—	Open the original filing on SEC.gov
May 20	Gunderson Thomas J.	Director	MEXER◆	13,750	—	—	—	Open the original filing on SEC.gov
May 20	Gunderson Thomas J.	Director	MEXER	7,500	$52.17	$391.3K	+14.1%	Open the original filing on SEC.gov
May 20	Gunderson Thomas J.	Director	MEXER	13,750	$52.17	$717.3K	+34.8%	Open the original filing on SEC.gov
May 18	Perez Silvia M.	Director	AGRANT	3,457	—	—	+75.4%	Open the original filing on SEC.gov
May 18	Ward Lynne N.	Director	AGRANT	3,457	—	—	+44.3%	Open the original filing on SEC.gov
May 18	Millner F. Ann Ed.D.	Director	AGRANT	3,457	—	—	+10.0%	Open the original filing on SEC.gov
May 18	Ward Scott R.	Director	AGRANT	3,457	—	—	—	Open the original filing on SEC.gov
May 18	McDonnell Michael R.	Director	AGRANT	3,457	—	—	+54.1%	Open the original filing on SEC.gov
May 18	Kaiser Laura S.	Director	AGRANT	3,457	—	—	+34.9%	Open the original filing on SEC.gov
May 18	Gunderson Thomas J.	Director	AGRANT	3,457	—	—	+9.6%	Open the original filing on SEC.gov
May 18	Evans Stephen C.	Director	AGRANT	3,457	—	—	+50.8%	Open the original filing on SEC.gov
May 18	Carpenter Lonny J.	Director	AGRANT	3,457	—	—	+19.9%	Open the original filing on SEC.gov
May 11	Smith Christian Adam	Chief Commercial Officer	PBUY★	1,626	$61.00	$99.2K	+273.7%	Open the original filing on SEC.gov
May 7	Ward Lynne N.	Director	SSELL	5,000	$62.61	$313K	-39.0%	Open the original filing on SEC.gov
May 7	Lloyd Brian G.	Chief Legal Officer,…	PBUY★	2,000	$62.63	$125.3K	—	Open the original filing on SEC.gov
May 6	Parra Raul Jr.	CFO and Treasurer	PBUY★	1,500	$61.01	$91.5K	+2.6%	Open the original filing on SEC.gov
May 6	Aronson Martha Goldberg	President and CEO	PBUY★	2,000	$60.44	$120.9K	+4.2%	Open the original filing on SEC.gov
May 5	Voigt Michel J.	Chief Human Resources…	PBUY★	2,250	$60.65	$136.5K	+15,000%	Open the original filing on SEC.gov
Feb 26	Smith Christian Adam	Chief Commercial Officer	FTAX	2,018	$78.02	$157.4K	-6.2%	Open the original filing on SEC.gov
Feb 26	Smith Christian Adam	Chief Commercial Officer	AGRANT	6,762	—	—	+26.4%	Open the original filing on SEC.gov
Feb 26	Smith Christian Adam	Chief Commercial Officer	AGRANT	6,409	—	—	+33.4%	Open the original filing on SEC.gov
Feb 26	Smith Christian Adam	Chief Commercial Officer	AGRANT	8,203	—	—	+74.7%	Open the original filing on SEC.gov
Feb 26	Peterson Neil W.	Chief Operating Officer	FTAX	6,061	$78.02	$472.9K	-11.4%	Open the original filing on SEC.gov
Feb 26	Peterson Neil W.	Chief Operating Officer	AGRANT	17,002	—	—	+47.1%	Open the original filing on SEC.gov
Feb 26	Peterson Neil W.	Chief Operating Officer	AGRANT	7,690	—	—	+27.1%	Open the original filing on SEC.gov
Feb 26	Voigt Michel J.	Chief Human Resources…	FTAX	6,698	$78.02	$522.6K	-12.7%	Open the original filing on SEC.gov
Feb 26	Voigt Michel J.	Chief Human Resources…	AGRANT	17,002	—	—	+47.5%	Open the original filing on SEC.gov
Feb 26	Voigt Michel J.	Chief Human Resources…	AGRANT	6,409	—	—	+21.8%	Open the original filing on SEC.gov
Feb 26	Voigt Michel J.	Chief Human Resources…	AGRANT	7,690	—	—	+35.4%	Open the original filing on SEC.gov
Feb 26	Parra Raul Jr.	CFO and Treasurer	FTAX	5,778	$78.02	$450.8K	-9.2%	Open the original filing on SEC.gov
Feb 26	Parra Raul Jr.	CFO and Treasurer	AGRANT	17,002	—	—	+36.9%	Open the original filing on SEC.gov
Feb 26	Parra Raul Jr.	CFO and Treasurer	AGRANT	9,613	—	—	+26.3%	Open the original filing on SEC.gov
Feb 26	Parra Raul Jr.	CFO and Treasurer	AGRANT	12,305	—	—	+50.8%	Open the original filing on SEC.gov
Feb 26	Lloyd Brian G.	Chief Legal Officer,…	FTAX	5,778	$78.02	$450.8K	-8.5%	Open the original filing on SEC.gov
Feb 26	Lloyd Brian G.	Chief Legal Officer,…	AGRANT	17,002	—	—	+33.4%	Open the original filing on SEC.gov
Feb 26	Lloyd Brian G.	Chief Legal Officer,…	AGRANT	6,409	—	—	+14.4%	Open the original filing on SEC.gov
Feb 26	Lloyd Brian G.	Chief Legal Officer,…	AGRANT	10,254	—	—	+29.9%	Open the original filing on SEC.gov
Feb 26	Aronson Martha Goldberg	President and CEO	AGRANT	28,198	—	—	+143.9%	Open the original filing on SEC.gov
Jan 6	Peterson Neil W.	Chief Operating Officer	MEXER◷◆	5,000	—	—	—	Open the original filing on SEC.gov
Jan 6	Peterson Neil W.	Chief Operating Officer	SSELL◷	5,000	$90.00	$450K	-15.0%	Open the original filing on SEC.gov
Jan 6	Peterson Neil W.	Chief Operating Officer	MEXER◷	5,000	$54.40	$272K	+17.6%	Open the original filing on SEC.gov
Nov 25, 2025	Lampropoulos Fred P.	Executive Chairman	SSELL	10,000	$88.04	$880.4K	-1.0%	Open the original filing on SEC.gov
Nov 21, 2025	Lampropoulos Fred P.	Executive Chairman	SSELL	25,000	$87.31	$2.2M	-2.4%	Open the original filing on SEC.gov
Nov 20, 2025	Lampropoulos Fred P.	Executive Chairman	SSELL	20,000	$85.13	$1.7M	-1.9%	Open the original filing on SEC.gov
Nov 18, 2025	Lampropoulos Fred P.	Executive Chairman	SSELL	5,000	$84.83	$424.1K	-0.5%	Open the original filing on SEC.gov
Oct 3, 2025	Aronson Martha Goldberg	President and CEO	AGRANT↺	19,594	—	—	—	Open the original filing on SEC.gov
Aug 29, 2025	Lampropoulos Fred P.	President and CEO	MEXER◆	2,000	—	—	—	Open the original filing on SEC.gov
Aug 29, 2025	Lampropoulos Fred P.	President and CEO	MEXER◆	159,151	—	—	—	Open the original filing on SEC.gov
Aug 29, 2025	Lampropoulos Fred P.	President and CEO	FTAX	1,454	$90.54	$131.6K	-14.9%	Open the original filing on SEC.gov
Aug 29, 2025	Lampropoulos Fred P.	President and CEO	MEXER	2,000	$55.73	$111.5K	+25.9%	Open the original filing on SEC.gov
Aug 29, 2025	Lampropoulos Fred P.	President and CEO	FTAX	124,824	$90.54	$11.3M	-10.4%	Open the original filing on SEC.gov
Aug 29, 2025	Lampropoulos Fred P.	President and CEO	MEXER	159,151	$55.73	$8.9M	+15.2%	Open the original filing on SEC.gov
Aug 22, 2025	Ward Lynne N.	Director	MEXER◆	3,000	—	—	—	Open the original filing on SEC.gov
Aug 22, 2025	Ward Lynne N.	Director	SSELL	3,000	$88.56	$265.7K	-19.0%	Open the original filing on SEC.gov
Aug 22, 2025	Ward Lynne N.	Director	MEXER	3,000	$34.46	$103.4K	+23.4%	Open the original filing on SEC.gov
Aug 11, 2025	Ward Lynne N.	Director	MEXER◆	2,433	—	—	—	Open the original filing on SEC.gov
Aug 11, 2025	Ward Lynne N.	Director	SSELL	2,433	$84.89	$206.5K	-16.0%	Open the original filing on SEC.gov
Aug 11, 2025	Ward Lynne N.	Director	MEXER	2,433	$34.46	$83.8K	+19.0%	Open the original filing on SEC.gov
Jun 13, 2025	Parra Raul Jr.	CFO and Treasurer	MEXER◆	5,500	—	—	—	Open the original filing on SEC.gov
Jun 13, 2025	Parra Raul Jr.	CFO and Treasurer	MEXER◆	9,681	—	—	—	Open the original filing on SEC.gov
Jun 13, 2025	Parra Raul Jr.	CFO and Treasurer	SSELL	15,181	$93.75	$1.4M	-38.6%	Open the original filing on SEC.gov
Jun 13, 2025	Parra Raul Jr.	CFO and Treasurer	MEXER	5,500	$65.03	$357.7K	+16.2%	Open the original filing on SEC.gov
Jun 13, 2025	Parra Raul Jr.	CFO and Treasurer	MEXER	9,681	$56.25	$544.6K	+40.0%	Open the original filing on SEC.gov
Jun 10, 2025	Lampropoulos Fred P.	President and CEO	SSELL	400	$95.61	$38.2K	<0.1%	Open the original filing on SEC.gov
Jun 5, 2025	Lampropoulos Fred P.	President and CEO	SSELL	10,000	$95.19	$951.9K	-0.9%	Open the original filing on SEC.gov
Jun 2, 2025	Voigt Michel J.	Chief Human Resources…	GGIFT	55	—	—	-0.3%	Open the original filing on SEC.gov
Jun 2, 2025	McDonnell Michael R.	Director	SSELL◷	1,750	$94.51	$165.4K	-21.5%	Open the original filing on SEC.gov
May 30, 2025	McDonnell Michael R.	Director	SSELL◷	1,750	$94.30	$165K	-17.7%	Open the original filing on SEC.gov
May 30, 2025	Lampropoulos Fred P.	President and CEO	SSELL	10,000	$95.12	$951.2K	-0.9%	Open the original filing on SEC.gov
May 30, 2025	Floyd David	Director	SSELL◷?	3,515	$94.16	$331K	-41.9%	Open the original filing on SEC.gov
May 27, 2025	Lampropoulos Fred P	President and CEO	SSELL	20,000	$96.54	$1.9M	-1.8%	Open the original filing on SEC.gov
May 15, 2025	Millner F. Ann	Director	MEXER◷◆	7,500	—	—	—	Open the original filing on SEC.gov
May 15, 2025	Millner F. Ann	Director	MEXER◷◆	13,750	—	—	—	Open the original filing on SEC.gov
May 15, 2025	Millner F. Ann	Director	SSELL◷	21,250	$96.47	$2M	-38.1%	Open the original filing on SEC.gov
May 15, 2025	Millner F. Ann	Director	MEXER◷	21,250	$52.17	$1.1M	+61.5%	Open the original filing on SEC.gov
May 15, 2025	Perez Silvia	Director	AGRANT	2,152	—	—	+88.5%	Open the original filing on SEC.gov

AGRANT—

Lewis Sheri · EVP of Global…Sep 4

8,371 sh

SSELL$678.4K

Peterson Neil W. · Chief Operating…Aug 24

7,500 sh @ $90.45 · -29.3% own

GGIFT—

Voigt Michel J. · Chief Human…Aug 24

650 sh · -1.4% own

SSELL$1.8M

Peterson Neil W. · Chief Operating…Aug 4

21,449 sh @ $85.00 · -45.6% own

GGIFT—

Voigt Michel J. · Chief Human…Jun 15

65 sh · -0.1% own

GGIFT—

Lloyd Brian G. · Chief Legal…Jun 5

2,000 sh · -3.2% own

MEXER◆—

Gunderson Thomas J. · DirectorMay 20

7,500 sh

MEXER◆—

Gunderson Thomas J. · DirectorMay 20

13,750 sh

MEXER$391.3K

Gunderson Thomas J. · DirectorMay 20

7,500 sh @ $52.17 · +14.1% own

MEXER$717.3K

Gunderson Thomas J. · DirectorMay 20

13,750 sh @ $52.17 · +34.8% own

AGRANT—

Perez Silvia M. · DirectorMay 18

3,457 sh · +75.4% own

AGRANT—

Ward Lynne N. · DirectorMay 18

3,457 sh · +44.3% own

AGRANT—

Millner F. Ann Ed.D. · DirectorMay 18

3,457 sh · +10.0% own

AGRANT—

Ward Scott R. · DirectorMay 18

3,457 sh

AGRANT—

McDonnell Michael R. · DirectorMay 18

3,457 sh · +54.1% own

AGRANT—

Kaiser Laura S. · DirectorMay 18

3,457 sh · +34.9% own

AGRANT—

Gunderson Thomas J. · DirectorMay 18

3,457 sh · +9.6% own

AGRANT—

Evans Stephen C. · DirectorMay 18

3,457 sh · +50.8% own

AGRANT—

Carpenter Lonny J. · DirectorMay 18

3,457 sh · +19.9% own

PBUY★$99.2K

Smith Christian Adam · Chief Commercial…May 11

1,626 sh @ $61.00 · +273.7% own

SSELL$313K

Ward Lynne N. · DirectorMay 7

5,000 sh @ $62.61 · -39.0% own

PBUY★$125.3K

Lloyd Brian G. · Chief Legal…May 7

2,000 sh @ $62.63

PBUY★$91.5K

Parra Raul Jr. · CFO and TreasurerMay 6

1,500 sh @ $61.01 · +2.6% own

PBUY★$120.9K

Aronson Martha Goldberg · President and CEOMay 6

2,000 sh @ $60.44 · +4.2% own

PBUY★$136.5K

Voigt Michel J. · Chief Human…May 5

2,250 sh @ $60.65 · +15,000% own

FTAX$157.4K

Smith Christian Adam · Chief Commercial…Feb 26

2,018 sh @ $78.02 · -6.2% own

AGRANT—

Smith Christian Adam · Chief Commercial…Feb 26

6,762 sh · +26.4% own

AGRANT—

Smith Christian Adam · Chief Commercial…Feb 26

6,409 sh · +33.4% own

AGRANT—

Smith Christian Adam · Chief Commercial…Feb 26

8,203 sh · +74.7% own

FTAX$472.9K

Peterson Neil W. · Chief Operating…Feb 26

6,061 sh @ $78.02 · -11.4% own

AGRANT—

Peterson Neil W. · Chief Operating…Feb 26

17,002 sh · +47.1% own

AGRANT—

Peterson Neil W. · Chief Operating…Feb 26

7,690 sh · +27.1% own

FTAX$522.6K

Voigt Michel J. · Chief Human…Feb 26

6,698 sh @ $78.02 · -12.7% own

AGRANT—

Voigt Michel J. · Chief Human…Feb 26

17,002 sh · +47.5% own

AGRANT—

Voigt Michel J. · Chief Human…Feb 26

6,409 sh · +21.8% own

AGRANT—

Voigt Michel J. · Chief Human…Feb 26

7,690 sh · +35.4% own

FTAX$450.8K

Parra Raul Jr. · CFO and TreasurerFeb 26

5,778 sh @ $78.02 · -9.2% own

AGRANT—

Parra Raul Jr. · CFO and TreasurerFeb 26

17,002 sh · +36.9% own

AGRANT—

Parra Raul Jr. · CFO and TreasurerFeb 26

9,613 sh · +26.3% own

AGRANT—

Parra Raul Jr. · CFO and TreasurerFeb 26

12,305 sh · +50.8% own

FTAX$450.8K

Lloyd Brian G. · Chief Legal…Feb 26

5,778 sh @ $78.02 · -8.5% own

AGRANT—

Lloyd Brian G. · Chief Legal…Feb 26

17,002 sh · +33.4% own

AGRANT—

Lloyd Brian G. · Chief Legal…Feb 26

6,409 sh · +14.4% own

AGRANT—

Lloyd Brian G. · Chief Legal…Feb 26

10,254 sh · +29.9% own

AGRANT—

Aronson Martha Goldberg · President and CEOFeb 26

28,198 sh · +143.9% own

MEXER◷◆—

Peterson Neil W. · Chief Operating…Jan 6

5,000 sh

SSELL◷$450K

Peterson Neil W. · Chief Operating…Jan 6

5,000 sh @ $90.00 · -15.0% own

MEXER◷$272K

Peterson Neil W. · Chief Operating…Jan 6

5,000 sh @ $54.40 · +17.6% own

SSELL$880.4K

Lampropoulos Fred P. · Executive ChairmanNov 25, 2025

10,000 sh @ $88.04 · -1.0% own

SSELL$2.2M

Lampropoulos Fred P. · Executive ChairmanNov 21, 2025

25,000 sh @ $87.31 · -2.4% own

SSELL$1.7M

Lampropoulos Fred P. · Executive ChairmanNov 20, 2025

20,000 sh @ $85.13 · -1.9% own

SSELL$424.1K

Lampropoulos Fred P. · Executive ChairmanNov 18, 2025

5,000 sh @ $84.83 · -0.5% own

AGRANT↺—

Aronson Martha Goldberg · President and CEOOct 3, 2025

19,594 sh

MEXER◆—

Lampropoulos Fred P. · President and CEOAug 29, 2025

2,000 sh

MEXER◆—

Lampropoulos Fred P. · President and CEOAug 29, 2025

159,151 sh

FTAX$131.6K

Lampropoulos Fred P. · President and CEOAug 29, 2025

1,454 sh @ $90.54 · -14.9% own

MEXER$111.5K

Lampropoulos Fred P. · President and CEOAug 29, 2025

2,000 sh @ $55.73 · +25.9% own

FTAX$11.3M

Lampropoulos Fred P. · President and CEOAug 29, 2025

124,824 sh @ $90.54 · -10.4% own

MEXER$8.9M

Lampropoulos Fred P. · President and CEOAug 29, 2025

159,151 sh @ $55.73 · +15.2% own

MEXER◆—

Ward Lynne N. · DirectorAug 22, 2025

3,000 sh

SSELL$265.7K

Ward Lynne N. · DirectorAug 22, 2025

3,000 sh @ $88.56 · -19.0% own

MEXER$103.4K

Ward Lynne N. · DirectorAug 22, 2025

3,000 sh @ $34.46 · +23.4% own

MEXER◆—

Ward Lynne N. · DirectorAug 11, 2025

2,433 sh

SSELL$206.5K

Ward Lynne N. · DirectorAug 11, 2025

2,433 sh @ $84.89 · -16.0% own

MEXER$83.8K

Ward Lynne N. · DirectorAug 11, 2025

2,433 sh @ $34.46 · +19.0% own

MEXER◆—