Company · Ownership research

MoonLake Immunotherapeutics MLTX

CIK 0001821586

Form 4 transactions dated Oct 1, 2023 to Oct 15, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Jul 29, 2026.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: $20.42M
Sold: $267.97M

Oct 1, 2023 – Jul 29, 2026
Available records · partial months are marked ·

Insiders in this window

20258 of 8 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 9, 2025	Santos da Silva Jorge Chief Executive Officer · Director	Sale	$1.01M 70,000 shares sold	2.37% sold Direct holding	▾
Dec 9, 2025	Reich Kristian Chief Scientific Officer	Sale	$1.05M 72,908 shares sold	100.00% sold Direct holding	▾
Dec 8, 2025	Santos da Silva Jorge Chief Executive Officer · Director	Sale	$1.96M 130,000 shares sold	4.22% sold Direct holding	▾
Dec 8, 2025	Reich Kristian Chief Scientific Officer	Sale	$1.96M 130,000 shares sold	64.07% sold Direct holding	▾
Oct 8, 2025	Bodenstedt Matthias Chief Financial Officer	Purchase	$98.81K 10,870 shares bought	1.76% added Direct holding	▾
Sep 30, 2025	Cormorant Asset Management, LP · Chen Bihua · Cormorant Global Healthcare Master Fund, LP · Cormorant Private Healthcare Fund II, LP · Cormorant Private Healthcare Fund III LP · Cormorant Private Healthcare Fund IV LP Former 10% Owner	Sale	$40.56K 5,827 shares sold	Unavailable Indirect holding	▾
Sep 29, 2025	Cormorant Asset Management, LP · Chen Bihua · Cormorant Global Healthcare Master Fund, LP · Cormorant Private Healthcare Fund II, LP · Cormorant Private Healthcare Fund III LP · Cormorant Private Healthcare Fund IV LP Former 10% Owner	Sale	$46.83M 6,494,151 shares sold	Unavailable Indirect holding	▾
Jul 3, 2025	Moukheibir Catherine Director	Sale	$1.15M 23,500 shares sold	100.00% sold Direct holding	▾

Showing 8 / 8 record groups in 2025. The complete set is available through the API.

MoonLake Immunotherapeutics · MLTX

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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 8 of 8 purchase / sale groups and 26 of 26 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"MLTX","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

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.