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MMSI · Merit Medical Systems Inc
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MMSI Merit Medical Systems (MMSI) Insider Trading, Ownership & Congress Trades

Medical Devices · Surgical & medical instruments & apparatus · CIK 0000856982
Cluster · 5 insidersC-suite buying · 5Form 144 · 2
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
0
13F, latest reported quarter
Conversions, 180 days
2
Codes C/M, not in net · $1.1M priced

What the filings say about MMSI

Insiders, 180 days
-$2.2M net sold
5 buyers · 2 sellers · 0% of sales under a 10b5-1 plan
Congress, 1 year
No trades
Last one: sale, 2025-09-25
Planned sales (Form 144), 90 days
$2.5M
2 notices

Merit Medical Systems insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, MERIT MEDICAL SYSTEMS INC insiders sold a net $2.2M of stock across 76 Form 4 purchases and sales, with 5 insiders buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
CHIEF OPERATING OFFICER
SELL
2026-08-25 SECtraded 2026-08-24
7,500
$678.4K
+4.0%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (2 sales), the last on Aug 4, 2026.
  • The trade is 41.5% of the 18,051 shares held after it.
  • No other insider sold within 30 days.
Insider activity: CHIEF OPERATING OFFICER Peterson Neil W. sold about $678.4K of MMSI on Aug 24, 2026.
CHIEF OPERATING OFFICER
SELL
2026-08-05 SECtraded 2026-08-04
21,449
$1.8M
+7.4%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jan 6, 2026.
  • The trade is 83.9% of the 25,551 shares held after it.
  • No other insider sold within 30 days.
Insider activity: CHIEF OPERATING OFFICER Peterson Neil W. sold about $1.8M of MMSI on Aug 4, 2026.
Chief Commercial Officer
BUY
2026-05-13 SECtraded 2026-05-11
1,626
$99.2K
+50.6%
Context
  • First Form 4 purchase or sale (code P or S) here by this insider on our record.
  • The trade is 73.2% of the 2,220 shares held after it.
  • 4 other insiders bought within 30 days.
Insider activity: Chief Commercial Officer Smith Christian Adam bought about $99.2K of MMSI on May 11, 2026; 4 other insiders bought within 30 days.
SELL
2026-05-11 SECtraded 2026-05-07
5,000
$313.1K
+54.0%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (2 sales), the last on Aug 22, 2025.
  • The trade is 64.0% of the 7,809 shares held after it.
  • No other insider sold within 30 days.
Insider activity: Director Ward Lynne N. sold about $313.1K of MMSI on May 7, 2026.
CHIEF LEGAL OFFICER, SECRETARY
BUY
2026-05-11 SECtraded 2026-05-07
2,000
$125.3K
+54.0%
Context
  • 6 earlier Form 4 trades (code P or S) here by this insider (6 sales), the last on Mar 5, 2025.
  • The trade is 100.0% of the 2,000 shares held after it.
  • 4 other insiders bought within 30 days.
Insider activity: CHIEF LEGAL OFFICER, SECRETARY Lloyd Brian G. bought about $125.3K of MMSI on May 7, 2026; 4 other insiders bought within 30 days.
76 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Showing the latest few. to see 71 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$2.2M over 180 days
-$2.5M over 90 days
below 70% of Medical Devices
Congress
no House purchase disclosed in the last 12 months
Funds
under five funds report holding it
Revenue
+11.8% year over year
more than 54% of Medical Devices
Margin
8.5% net margin
more than 79% of Medical Devices
Buybacks
no share repurchases reported
Short interest
6.2% of the float short (float per yahoo 2026-10-26) · 6.2 days to cover · settled 2026-09-30
more than 70% of Medical Devices
The situation: each line is one rule over one dataset
3 trial completion dates slipped in the last 90 days.
What changed in the last 30 days
Oct 28Insider buying stopped: no purchases in 90 days after 5 in the prior 90
Why it matters
The absence is the signal: 5 purchases in one 90-day window and none in the next is a change of behaviour, not a filing.

Watch MMSI

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+13.0%12M
-28%-14%-1%+13%2025-102025-122026-022026-042026-062026-082026-10 2025-11-21 · Lampropoulos Fred P. sold $2.2M2026-08-04 · Peterson Neil W. sold $1.8M2025-11-20 · Lampropoulos Fred P. sold $1.7M2025-11-25 · Lampropoulos Fred P. sold $880.4K2026-08-24 · Peterson Neil W. sold $678.4K2026-01-06 · Peterson Neil W. sold $450.0K2025-11-18 · Lampropoulos Fred P. sold $424.1K2026-05-07 · Ward Lynne N. sold $313.1K2026-05-05 · Voigt Michel J. bought $136.5K2026-05-07 · Lloyd Brian G. bought $125.3K2026-05-06 · Aronson Martha Goldberg bought $120.9K2026-05-11 · Smith Christian Adam bought $99.2K2026-05-06 · Parra Raul Jr. bought $91.5K2026-08-24 · NEIL W PETERSON filed to sell $678.4K2026-08-04 · NEIL W PETERSON filed to sell $1.8M
Insider buyInsider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns MMSI: institutional holders (13F)

13F holdings, latest reported quarter
SEC 13F
No reported 13F holders

No fund above the reporting threshold listed this stock last quarter. That is a fact, not missing data.

Congress trades in MMSI

STOCK Act disclosures, US House only, filed up to 45 days after the trade
Sold 2025-09-25 · disclosed 27 days later
$1,001 - $15,000
Bought 2025-07-22 · disclosed 22 days later
$1,001 - $15,000

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

MMSI planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
NEIL W PETERSON
Filed 2026-08-24
$678.4K
NEIL W PETERSON
Filed 2026-08-04
$1.8M
Clinical pipeline
16 registered trials, 8 still running (ClinicalTrials.gov). A status change is dated here weeks before the press release.
16
Not applicable
8 active
What changed recently
Merit WRAPSODY™ Endoprosthesis for Treatment of Stenosis or Occlusion (WRAP)
2026-10-10 · Completion moved 2026-04-15 → 2026-05-06
,
Bearing nsPVA Embolization for Uterine Artery Embolization (BETTER-UAE)
2026-10-08 · Completion moved 2026-06 → 2027-06
,
PREEMIE: Study for Treatment of PDA in Premature Infants
2026-10-08 · Completion moved 2026-08 → 2026-11
Not applicable
Matched by sponsor name. Trials run under a subsidiary's own name are not included.
Corporate PAC
The company's PAC: committee totals only, never individual donors (FEC).
Merit Medical Systems Inc Employee Good Governance Pac
Cycle 2026 · $11K spent
$34.2K
Federal Election Commission, matched by the PAC's connected organisation
Executive pay vs shareholder return · Fred P.Lampropoulos
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2024
$10.4M
$16.4M
$3.2M
+74%
-1%
2023
$10.1M
$9.8M
$2.7M
+37%
-14%
2022
$8.1M
$12.1M
$2.1M
+27%
-20%
2021
$7.5M
$10.7M
$1.7M
+12%
+15%
2020
$7.7M
$12.6M
$1.7M
+78%
+47%
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
5 insiders reported buying shares.
The record shows a net $2.2M sold by insiders over 180 days, $2.5M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Same sector, ranked by filing activity
Sector by SEC SIC code

MMSI financials

Revenue growth
+11.8%
XBRL, annual
Net margin
8.5%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$1.6B
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
+9.2%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
$203.2M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
0.44x
long-term 2026-06-30 plus current 2023-09-30 (33 months older than the period end); equity 2026-06-30
Cash flow to debt
0.38x
TTM operating cash flow over long-term 2026-06-30 plus current 2023-09-30 (33 months older than the period end)
Return on equity
+9.2%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
+5.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
+7.8%
operating income after a 25.1% effective tax rate, over long-term 2026-06-30 plus current 2023-09-30 (33 months older than the period end) plus average of 2025-06-30 and 2026-06-30 minus cash
Return on capital employed
+8.1%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
P/E, trailing
38.77x
close 2026-10-26 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
Enterprise value
$5.9B
market value at close 2026-10-26 on 2026-07-28 shares, plus long-term 2026-06-30 plus current 2023-09-30 (33 months older than the period end), minus cash 2026-06-30
FCF yield
+3.6%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
1.66x
P/E over trailing EPS growth of 23%: four quarters to 2026-06-30 against the four to 2025-06-30
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$1.5B$1.4B$1.3B$1.2B
Gross profit$738.3M$643.3M$583.9M$519.1M
Operating income$184.7M$155.7M$123.9M$87.6M
Net income$128.5M$120.4M$94.4M$74.5M
EPS (diluted)2.132.031.621.29
Operating cash flow$297.4M$220.8M$145.2M$114.3M
Cash$446.4M$376.7M$587.0M$58.4M
Long-term debt$734.0M$729.6M$823.0M$186.8M
SEC XBRL, fiscal years, as known on 2026-10-28

MMSI Stock Sonar score 6/7 axes

Find similar shapesCompare

MMSI ranks highest on profitability (68th percentile) and insider conviction (61st), and lowest on institutional and government (12th), among Medical Devices peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
68
Inputs
  • Return on equity+9.2% · 77 pct, sector of 183
  • Return on assets+5.3% · 78 pct, sector of 214
  • Return on invested capital+7.8% · 37 pct, sector of 36
  • Return on capital employed+8.1% · 80 pct, sector of 188
Financial health
60
Inputs
  • Debt to equity0.44x · 41 pct, sector of 159
  • Cash flow to debt0.38x · 79 pct, sector of 150
Growth
54
Inputs
  • Revenue growth, YoY+11.8% · 54 pct, sector of 219
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
61
Inputs
  • Net Form 4 buying (codes P and S), 180d-$2.2M · 28 pct, sector of 140
  • Insider buyers, 180d5 · 94 pct, sector of 142
Institutional and government
12
Inputs
  • Funds adding, latest quarterfewer than five funds report holding it
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$50K · 12 pct, sector of 50
Risk and compliance
24
Inputs
  • Short interest, % of float+6.2% · 41 pct, sector of 240
  • Recalls per $1B revenue, 3y48.16 per $1B · 3 pct, sector of 116
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+15.5% · 28 pct, sector of 198
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

MMSI filings, in plain words

Are Merit Medical Systems insiders buying or selling MMSI?

In the 180 days to 2026-10-28, Merit Medical Systems insiders were net sellers, a net $2.2M: $573.3K of purchases and $2.8M of sales reported on Form 4, by 5 buyers and 2 sellers.

Have members of Congress traded MMSI?

Yes, but not in the year to 2026-10-28; the latest on record is a sale by Lisa McClain dated 2025-09-25.

Are there planned insider sales of MMSI?

Yes. 2 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $2.5M of stock; the latest, by NEIL W PETERSON, was filed 2026-08-24.

Read the full summary

In the 180 days to 2026-10-28, Merit Medical Systems insiders were net sellers of MMSI, a net $2.2M across purchases and sales reported on Form 4 by 5 buyers and 2 sellers. 5 insiders reported purchases in that window. None of the 3 insider sales was flagged as made under a Rule 10b5-1 plan. Members of Congress have disclosed trades in MMSI, none in the last year; the latest on record is a sale by Lisa McClain dated 2025-09-25. Insiders filed 2 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $2.5M of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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