Company · Ownership research

Climb Bio, Inc. CLYM

CIK 0001768446

Form 4 transactions dated Sep 1, 2023 to Sep 26, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-07-01.

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: $50.73M
Sold: $4.78M

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

Insiders in this window

20255 of 5 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-12-12	RA Capital Healthcare Fund LP · RA CAPITAL MANAGEMENT, L.P. · Kolchinsky Peter · Shah Rajeev M. · RA Capital Nexus Fund, L.P. · RA Capital Nexus Fund II, L.P. · RA Capital Nexus Fund III, L.P. Director · 10% owner	Purchase	$290.18K 101,462 shares bought	Unavailable Indirect holding	▾
2025-12-11	RA Capital Healthcare Fund LP · RA CAPITAL MANAGEMENT, L.P. · Kolchinsky Peter · Shah Rajeev M. · RA Capital Nexus Fund, L.P. · RA Capital Nexus Fund II, L.P. · RA Capital Nexus Fund III, L.P. Director · 10% owner	Purchase	$464.56K 213,099 shares bought	Unavailable Indirect holding	▾
2025-06-30	Brennan Aoife President and CEO · Director	Sale10b5-1 footnote	$25.15K 20,618 shares sold	29.99% sold Direct holding	▾
2025-06-20	Pimblett Emily SVP, Finance & CAO	Sale10b5-1 footnote	$1.54K 1,242 shares sold	6.17% sold Direct holding	▾
2025-03-20	Pimblett Emily SVP, Finance & CAO	Sale10b5-1 footnote	$1.57K 1,199 shares sold	7.34% sold Direct holding	▾

Showing 5 / 5 record groups in 2025. The complete set is available through the API.

Climb Bio, Inc. · CLYM

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{"ticker":"CLYM","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. 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.