Company · Ownership research

CRESCENT BIOPHARMA, INC. CBIO

CIK 0001253689

Form 4 transactions dated Nov 1, 2023 to Nov 10, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Sep 18, 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: $30.70M
Sold: $2.00M

Nov 1, 2023 – Sep 18, 2026
Available records · partial months are marked ·

202410 of 12 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Aug 8, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$50.01K 260,873 shares sold	Unavailable Direct holding	▾
Aug 7, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$11.20K 61,488 shares sold	Unavailable Direct holding	▾
Aug 6, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$10.19K 55,732 shares sold	Unavailable Direct holding	▾
Aug 5, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$31.00K 164,523 shares sold	Unavailable Direct holding	▾
Aug 2, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$57.35K 286,200 shares sold	Unavailable Direct holding	▾
Aug 1, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$13.74K 63,564 shares sold	Unavailable Direct holding	▾
Jul 30, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$167.18K 756,835 shares sold	Unavailable Direct holding	▾
Jul 29, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$85.64K 363,949 shares sold	Unavailable Direct holding	▾
Jul 26, 2024	DEBBANE RAYMOND · Invus Public Equities Advisors, LLC · Invus Public Equities, L.P. · Siren, L.L.C. · Invus Global Management, LLC 10% owner	Sale	$62.44K 258,335 shares sold	Unavailable Direct holding	▾
Jun 21, 2024	Rock Edwin Chief Medical Officer	Purchase	$30.72K 115,000 shares bought	20.34% added Direct holding	▾

Showing 12 / 12 record groups in 2024. The complete set is available through the API.

CRESCENT BIOPHARMA, INC. · CBIO

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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 12 of 12 purchase / sale groups and 15 of 15 other groups; the totals and the monthly series cover the whole window.

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