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

202610 of 21 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Jul 27, 2026	Reich Kristian Chief Scientific Officer	Sale10b5-1 footnote	$22.00K 1,100 shares sold	0.04% sold Indirect holding	▾
Jul 22, 2026	Reich Kristian Chief Scientific Officer	Sale10b5-1 footnote	$48.96K 2,448 shares sold	0.09% sold Indirect holding	▾
Jul 21, 2026	Reich Kristian Chief Scientific Officer	Sale10b5-1 footnote	$1.00M 50,000 shares sold	1.81% sold Indirect holding	▾
Jul 20, 2026	Reich Kristian Chief Scientific Officer	Sale10b5-1 footnote	$877.93K 43,700 shares sold	1.56% sold Indirect holding	▾
Jul 15, 2026	Reich Kristian Chief Scientific Officer	Sale10b5-1 footnote	$322.26K 16,105 shares sold	0.57% sold Indirect holding	▾
Jul 10, 2026	Santos da Silva Jorge Chief Executive Officer · Director	Sale10b5-1 footnote	$1.37M 68,289 shares sold	2.40% sold Direct holding	▾
Jul 9, 2026	Santos da Silva Jorge Chief Executive Officer · Director	Sale10b5-1 footnote	$679.06K 33,936 shares sold	1.18% sold Direct holding	▾
Jul 1, 2026	Santos da Silva Jorge Chief Executive Officer · Director	Sale10b5-1 footnote	$956.93K 47,775 shares sold	1.63% sold Direct holding	▾
Jun 22, 2026	Bodenstedt Matthias Chief Financial Officer	Sale10b5-1 footnote	$862.20K 39,120 shares sold	3.39% sold Direct holding	▾
Jun 18, 2026	Bodenstedt Matthias Chief Financial Officer	Sale10b5-1 footnote	$54.76K 2,794 shares sold	0.24% sold Direct holding	▾

Showing 21 / 21 record groups in 2026. The complete set is available through the API.

MoonLake Immunotherapeutics · MLTX

Follow the people behind the trades.

Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.

Download CSV
Earlier filings
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

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 21 of 21 purchase / sale groups and 8 of 8 other groups; the totals and the monthly series cover the whole window.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

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

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP documentation: /documents
llms.txt: /llms.txt

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.