Company · Ownership research

MERIT MEDICAL SYSTEMS INC MMSI

CIK 0000856982

Form 4 transactions dated Nov 1, 2023 to Nov 9, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 69 rows; the complete set is available through the API.

Insider filings on file run through Sep 9, 2026.

Insider purchases & sales

Purchased: $573.29K
Sold: $43.13M

Nov 1, 2023 – Sep 9, 2026
Available records · partial months are marked ·

202510 of 25 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Nov 25, 2025	Lampropoulos Fred P. Executive Chairman · Director	Sale	$880.38K 10,000 shares sold	0.97% sold Direct holding	▾
Nov 21, 2025	Lampropoulos Fred P. Executive Chairman · Director	Sale	$2.18M 25,000 shares sold	2.37% sold Direct holding	▾
Nov 20, 2025	Lampropoulos Fred P. Executive Chairman · Director	Sale	$1.70M 20,000 shares sold	1.86% sold Direct holding	▾
Nov 18, 2025	Lampropoulos Fred P. Executive Chairman · Director	Sale	$424.13K 5,000 shares sold	0.46% sold Direct holding	▾
Aug 22, 2025	Ward Lynne N. Director	Sale	$265.68K 3,000 shares sold	18.98% sold Direct holding	▾
Aug 11, 2025	Ward Lynne N. Director	Sale	$206.54K 2,433 shares sold	15.96% sold Direct holding	▾
Jun 13, 2025	Parra Raul Jr. CFO AND TREASURER	Sale	$1.42M 15,181 shares sold	38.55% sold Direct holding	▾
Jun 10, 2025	Lampropoulos Fred P. President and CEO · Director	Sale	$38.24K 400 shares sold	0.04% sold Direct holding	▾
Jun 5, 2025	Lampropoulos Fred P. President and CEO · Director	Sale	$951.90K 10,000 shares sold	0.95% sold Direct holding	▾
Jun 2, 2025	McDonnell Michael R. Director	Sale10b5-1 footnote	$165.39K 1,750 shares sold	21.49% sold Direct holding	▾

Showing 25 / 25 record groups in 2025. The complete set is available through the API.

MERIT MEDICAL SYSTEMS INC · MMSI

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 25 of 25 purchase / sale groups and 30 of 69 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"MMSI","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.