CBIONasdaq

CRESCENT BIOPHARMA, INC.

Alert me on CBIO

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Sep 19 Sale Bispham Barbara Harlin Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Sep 19 Sale Im Ellie Eunkyung Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Sep 19 Sale Scalzo Richard William Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Sep 19 Sale Brumm Joshua T Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Sep 19 Sale Lynch Ryan Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Show all 22

Sep 19 Sale McNeill Jonathan Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Sep 19 Sale Pinkas Jan Insider

1 week

−10.6%S&P −1.0%

1 month

−19.6%S&P −0.6%

3 months

Result in33 trading days

6 months

Result in96 trading days

Jul 21 Buy Fairmount Funds Management LLC Insider

1 week

−1.2%S&P −1.0%

1 month

+4.1%S&P +2.8%

3 months

−25.7%S&P +2.7%

6 months

Result in53 trading days

Jul 21 Buy Fairmount Healthcare Fund II L.P. Insider

1 week

−1.2%S&P −1.0%

1 month

+4.1%S&P +2.8%

3 months

−25.7%S&P +2.7%

6 months

Result in53 trading days

Jul 21 Buy Kiselak Tomas Insider

1 week

−1.2%S&P −1.0%

1 month

+4.1%S&P +2.8%

3 months

−25.7%S&P +2.7%

6 months

Result in53 trading days

Jul 21 Buy Harwin Peter Evan Insider

1 week

−1.2%S&P −1.0%

1 month

+4.1%S&P +2.8%

3 months

−25.7%S&P +2.7%

6 months

Result in53 trading days

Jun 24 Sale Pinkas Jan Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Jun 24 Sale Bispham Barbara Harlin Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Jun 24 Sale Scalzo Richard William Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Jun 24 Sale Im Ellie Eunkyung Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Jun 24 Sale Lynch Ryan Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Jun 24 Sale McNeill Jonathan Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Jun 24 Sale Brumm Joshua T Insider

1 week

−1.6%S&P +1.7%

1 month

−6.1%S&P +0.8%

3 months

−18.3%S&P +5.0%

6 months

Result in35 trading days

Dec 9, 2025 Buy Fairmount Funds Management LLC Insider

1 week

−7.5%S&P −0.6%

1 month

−22.8%S&P +1.9%

3 months

−17.3%S&P −2.2%

6 months

+31.3%S&P +8.6%

Dec 9, 2025 Buy Fairmount Healthcare Fund II L.P. Insider

1 week

−7.5%S&P −0.6%

1 month

−22.8%S&P +1.9%

3 months

−17.3%S&P −2.2%

6 months

+31.3%S&P +8.6%

Dec 9, 2025 Buy Kiselak Tomas Insider

1 week

−7.5%S&P −0.6%

1 month

−22.8%S&P +1.9%

3 months

−17.3%S&P −2.2%

6 months

+31.3%S&P +8.6%

Dec 9, 2025 Buy Harwin Peter Evan Insider

1 week

−7.5%S&P −0.6%

1 month

−22.8%S&P +1.9%

3 months

−17.3%S&P −2.2%

6 months

+31.3%S&P +8.6%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for CBIO

48 held · newest 548 held · newest 2

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See all 48 filings for CBIO

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New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Sep 30, 2026 Schedule 13G

BlackRock, Inc.: 5.6%, 2,075,291 shares

Jun 30, 2026 Schedule 13G, amended

BALYASNY ASSET MANAGEMENT L.P.: 6%, 1,662,917 shares

Jul 16, 2026 Schedule 13D, amended

Peter Harwin: 16.5%, 6,602,408 shares

Mar 31, 2026 Schedule 13G, amended

TANG CAPITAL MANAGEMENT, LLC: 4.2%, 1,160,000 shares

Mar 31, 2026 Schedule 13G

Balyasny Asset Management L.P.: 5.5%, 1,510,033 shares

Dec 31, 2025 Schedule 13G, amended

Venrock Healthcare Capital Partners III, L.P.: 9.5%, 2,666,064 shares

Dec 31, 2025 Schedule 13G

Vestal Point Capital, LP: 5.4%, 1,500,000 shares

Dec 31, 2025 Schedule 13G, amended

FMR LLC: 15%, 4,133,514 shares

Dec 8, 2025 Schedule 13G

ForGrowth III PA B.V.: 6.1%, 1,677,852 shares

Dec 4, 2025 Schedule 13D, amended

Fairmount Funds Management LLC: 18.5%, 5,643,482 shares

Oct 7, 2025 Schedule 13G, amended

1Globe Capital LLC: 10.3%, 1,425,432 shares

Oct 2, 2025 Schedule 13G

TANG CAPITAL MANAGEMENT, LLC: 5%, 700,000 shares

Aug 13, 2025 Schedule 13G

1Globe Capital LLC: 6.5%, 896,712 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

No lobbying reports on file.