Company · Ownership research

Larimar Therapeutics, Inc. LRMR

CIK 0001374690

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Oct 1, 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: $93.76M
Sold: $0.00

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

Insiders in this window

20245 of 5 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Feb 16, 2024	Hamilton Thomas Edward Director	Purchase	$500.00K 57,208 shares bought	11.27% added Direct holding	▾
Feb 16, 2024	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · Deerfield Mgmt L.P. · DEERFIELD PARTNERS, L.P. · Flynn James E · Deerfield Private Design Fund III, L.P. · Deerfield Mgmt III, L.P. · Deerfield Healthcare Innovations Fund, L.P. · Deerfield Mgmt HIF, L.P. · Deerfield Private Design Fund IV, L.P. · Deerfield Mgmt IV, L.P. Director · 10% owner · * Director by Deputization	Purchase	$12.50M 1,430,206 shares bought	Unavailable Indirect holding	▾
Feb 16, 2024	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · Deerfield Mgmt L.P. · DEERFIELD PARTNERS, L.P. · Flynn James E · Deerfield Private Design Fund III, L.P. · Deerfield Mgmt III, L.P. · Deerfield Healthcare Innovations Fund, L.P. · Deerfield Mgmt HIF, L.P. · Deerfield Private Design Fund IV, L.P. · Deerfield Mgmt IV, L.P. Director · 10% owner · * Director by Deputization	Purchase	$12.50M 1,430,206 shares bought	Unavailable Indirect holding	▾
Feb 16, 2024	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · Deerfield Mgmt L.P. · DEERFIELD PARTNERS, L.P. · Flynn James E · Deerfield Private Design Fund III, L.P. · Deerfield Mgmt III, L.P. · Deerfield Healthcare Innovations Fund, L.P. · Deerfield Mgmt HIF, L.P. · Deerfield Private Design Fund IV, L.P. · Deerfield Mgmt IV, L.P. Director · 10% owner · * Director by Deputization	Purchase	$12.50M 1,430,205 shares bought	Unavailable Indirect holding	▾
Feb 14, 2024	THOMAS FRANK E Director	Purchase	$22.00K 2,000 shares bought	New holding Direct holding	▾

Showing 5 / 5 record groups in 2024. The complete set is available through the API.

Larimar Therapeutics, Inc. · LRMR

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{"action":"list","ticker":"LRMR","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.