Merit Medical Systems, Inc. Insider Trading

MMSI

Last 12 months

Insiders bought 573K and sold $8.45M on the open market.

5% of the selling was scheduled in advance under 10b5-1 plans. Executive Chairman Fred P. Lampropoulos sold $2.18M on Nov 21, 2025 outside a plan.

Net open-market

−$7.88M

5 buys · 8 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

5 / 3

executives and directors

Last open-market buy

May 2026

May 11, 2026

Get an email when MMSI's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 24	Neil W. Peterson Chief Operating Officer	SoldNo plan	7,500	$90.45	678K	29%	Form 4
Aug 4	Neil W. Peterson Chief Operating Officer	SoldNo plan	21,449	$85.00	$1.82M	46%	Form 4
May 11	Christian Adam Smith Chief Commercial Officer	Bought	1,626	$61.00	99K	5.3%	Form 4
May 7	Lynne N. Ward Director	SoldNo plan	5,000	$62.61	313K	39%	Form 4
May 7	Brian G. Lloyd Chief Legal Officer, Secretary	Bought	2,000	$62.63	125K	3.2%	Form 4
May 6	Raul Parra Jr. CFO and Treasurer	Bought	1,500	$61.01	92K	2.5%	Form 4
May 6	Martha Goldberg Aronson President and CEO	Bought	2,000	$60.44	121K	4.2%	Form 4
May 5	Michel J. Voigt Chief Human Resources Officer	Bought	2,250	$60.65	136K	4.9%	Form 4
Jan 6	Neil W. Peterson Chief Operating Officer	Sold10b5-1 plan	5,000	$90.00	450K	15%	Form 4
Nov 25, 2025	Fred P. Lampropoulos Executive Chairman	SoldNo plan	10,000	$88.04	880K	0.9%	Form 4
Nov 21, 2025	Fred P. Lampropoulos Executive Chairman	SoldNo plan	25,000	$87.31	$2.18M	2.2%	Form 4
Nov 20, 2025	Fred P. Lampropoulos Executive Chairman	SoldNo plan	20,000	$85.13	$1.7M	1.7%	Form 4
Nov 18, 2025	Fred P. Lampropoulos Executive Chairman	SoldNo plan	5,000	$84.83	424K	0.4%	Form 4
Aug 22, 2025	Lynne N. Ward Director	SoldNo plan	3,000	$88.56	266K	19%	Form 4
Aug 11, 2025	Lynne N. Ward Director	SoldNo plan	2,433	$84.89	207K	16%	Form 4
Jun 13, 2025	Raul Parra Jr. CFO and Treasurer	SoldNo plan	15,181	$93.75	$1.42M	36%	Form 4
Jun 10, 2025	Fred P. Lampropoulos President and CEO	SoldNo plan	400	$95.61	38K	<0.1%	Form 4
Jun 5, 2025	Fred P. Lampropoulos President and CEO	SoldNo plan	10,000	$95.19	952K	0.9%	Form 4
May 30, 2025 – Jun 2, 2025	Michael R. McDonnell Director	Sold10b5-1 plan 2 parts	3,500	$94.41 average	330K	35%	Form 4
May 30, 2025	David Floyd Director	Sold10b5-1 plan	3,515	$94.16	331K	19%	Form 4
May 30, 2025	Fred P. Lampropoulos President and CEO	SoldNo plan	10,000	$95.12	951K	0.9%	Form 4
May 27, 2025	Fred P Lampropoulos President and CEO	SoldNo plan	20,000	$96.54	$1.93M	1.7%	Form 4
May 15, 2025	F. Ann Millner Director	Sold10b5-1 plan	21,250	$96.47	$2.05M	38%	Form 4
Apr 1, 2025	Neil Peterson Chief Operating Officer	Sold10b5-1 plan	5,000	$104.53	523K	15%	Form 4
Mar 5, 2025	Fred P Lampropoulos President and CEO	SoldNo plan 4 parts	34,320	$103.85 average	$3.56M	2.8%	Form 4
Mar 5, 2025	Raul Parra Jr. CFO and Treasurer	SoldNo plan	5,361	$103.58	555K	17%	Form 4
Mar 5, 2025	Brian G. Lloyd Chief Legal Officer, Secretary	SoldNo plan	30,000	$102.90	$3.09M	44%	Form 4
Mar 3, 2025	Neil Peterson Chief Operating Officer	Sold10b5-1 plan	5,000	$105.00	525K	15%	Form 4
Mar 3, 2025	Stephen C. Evans Director	SoldNo plan	5,000	$105.31	527K	52%	Form 4
Feb 28, 2025	Brian G. Lloyd Chief Legal Officer, Secretary	SoldNo plan	25,000	$99.50	$2.49M	39%	Form 4
Feb 28, 2025	Michel James Voigt Chief Human Resources Officer	SoldNo plan	13,809	$99.68	$1.38M	38%	Form 4
Feb 28, 2025	Raul Parra Jr. CFO and Treasurer	Sold10b5-1 plan	12,451	$98.81	$1.23M	32%	Form 4
Nov 15, 2024	F. Ann Millner Director	Sold10b5-1 plan	12,500	$101.55	$1.27M	28%	Form 4
Nov 7, 2024	Raul Parra Jr. CFO and Treasurer	SoldNo plan	5,361	$102.18	548K	22%	Form 4

Aug 24No plan
Neil W. Peterson
Chief Operating Officer · sold 7,500 at $90.45
678K
29% of stake
Aug 4No plan
Neil W. Peterson
Chief Operating Officer · sold 21,449 at $85.00
$1.82M
46% of stake
May 11
Christian Adam Smith
Chief Commercial Officer · bought 1,626 at $61.00
99K
5.3% of stake
May 7No plan
Lynne N. Ward
Director · sold 5,000 at $62.61
313K
39% of stake
May 7
Brian G. Lloyd
Chief Legal Officer, Secretary · bought 2,000 at $62.63
125K
3.2% of stake
May 6
Raul Parra Jr.
CFO and Treasurer · bought 1,500 at $61.01
92K
2.5% of stake
May 6
Martha Goldberg Aronson
President and CEO · bought 2,000 at $60.44
121K
4.2% of stake
May 5
Michel J. Voigt
Chief Human Resources Officer · bought 2,250 at $60.65
136K
4.9% of stake
Jan 610b5-1 plan
Neil W. Peterson
Chief Operating Officer · sold 5,000 at $90.00
450K
15% of stake
Nov 25, 2025No plan
Fred P. Lampropoulos
Executive Chairman · sold 10,000 at $88.04
880K
0.9% of stake
Nov 21, 2025No plan
Fred P. Lampropoulos
Executive Chairman · sold 25,000 at $87.31
$2.18M
2.2% of stake
Nov 20, 2025No plan
Fred P. Lampropoulos
Executive Chairman · sold 20,000 at $85.13
$1.7M
1.7% of stake
Nov 18, 2025No plan
Fred P. Lampropoulos
Executive Chairman · sold 5,000 at $84.83
424K
0.4% of stake
Aug 22, 2025No plan
Lynne N. Ward
Director · sold 3,000 at $88.56
266K
19% of stake
Aug 11, 2025No plan
Lynne N. Ward
Director · sold 2,433 at $84.89
207K
16% of stake
Jun 13, 2025No plan
Raul Parra Jr.
CFO and Treasurer · sold 15,181 at $93.75
$1.42M
36% of stake
Jun 10, 2025No plan
Fred P. Lampropoulos
President and CEO · sold 400 at $95.61
38K
<0.1% of stake
Jun 5, 2025No plan
Fred P. Lampropoulos
President and CEO · sold 10,000 at $95.19
952K
0.9% of stake
May 30, 2025 – Jun 2, 202510b5-1 plan
Michael R. McDonnell
Director · sold 3,500 at avg $94.41
330K
35% of stake
May 30, 202510b5-1 plan
David Floyd
Director · sold 3,515 at $94.16
331K
19% of stake
May 30, 2025No plan
Fred P. Lampropoulos
President and CEO · sold 10,000 at $95.12
951K
0.9% of stake
May 27, 2025No plan
Fred P Lampropoulos
President and CEO · sold 20,000 at $96.54
$1.93M
1.7% of stake
May 15, 202510b5-1 plan
F. Ann Millner
Director · sold 21,250 at $96.47
$2.05M
38% of stake
Apr 1, 202510b5-1 plan
Neil Peterson
Chief Operating Officer · sold 5,000 at $104.53
523K
15% of stake
Mar 5, 2025No plan
Fred P Lampropoulos
President and CEO · sold 34,320 at avg $103.85
$3.56M
2.8% of stake
Mar 5, 2025No plan
Raul Parra Jr.
CFO and Treasurer · sold 5,361 at $103.58
555K
17% of stake
Mar 5, 2025No plan
Brian G. Lloyd
Chief Legal Officer, Secretary · sold 30,000 at $102.90
$3.09M
44% of stake
Mar 3, 202510b5-1 plan
Neil Peterson
Chief Operating Officer · sold 5,000 at $105.00
525K
15% of stake
Mar 3, 2025No plan
Stephen C. Evans
Director · sold 5,000 at $105.31
527K
52% of stake
Feb 28, 2025No plan
Brian G. Lloyd
Chief Legal Officer, Secretary · sold 25,000 at $99.50
$2.49M
39% of stake
Feb 28, 2025No plan
Michel James Voigt
Chief Human Resources Officer · sold 13,809 at $99.68
$1.38M
38% of stake
Feb 28, 202510b5-1 plan
Raul Parra Jr.
CFO and Treasurer · sold 12,451 at $98.81
$1.23M
32% of stake
Nov 15, 202410b5-1 plan
F. Ann Millner
Director · sold 12,500 at $101.55
$1.27M
28% of stake
Nov 7, 2024No plan
Raul Parra Jr.
CFO and Treasurer · sold 5,361 at $102.18
548K
22% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch MMSI, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Peers

Surgical & Medical Instruments & Apparatus · Pick stocks to compare with MMSI

CompareIntrinsic value

IARTIntegra LifeSciences Holdings Corporation

$14.82+8.73%28

PENPenumbra Inc.

$322.45+0.76%72

HAEHaemonetics Corporation

$127.42+5.94%53

ICUIIcu Medical Inc.

$172.62+6.67%46

TNDMTandem Diabetes Care Inc.

$19.05+7.93%26

EMBCEmbecta Corp.

$6.52+7.24%37

INSPInspire Medical Systems, Inc.

$66.61+7.61%81

ATECAlphatec Holdings Inc.

$8.28+10.84%45

Held by ETFs

MMSI is in 97 US ETFs. The largest of them, with MMSI's weight in each:

Spot a number that looks wrong? Check it in MMSI's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing MMSI

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.