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CBIO CRESCENT BIOPHARMA INC.

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COMMON STOCK (common), issuer CIK 1253689

41 managers (41 13F filers) reported a position in CBIO shares at 2025-09-30, 11,318,885 shares in all. 15 filers opened a position and 4 filers sold out during the quarter.

Managers
41
13F filers
41
New
15
Added
7
Reduced
8
Sold out
4
Shares held by filers
11,318,885

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
FMR LLCin group FMR LLC1,414,680$16.8M<0.01%+49013F-HRTimelineGroup
Fairmount Funds Management LLCin group Fairmount Funds Management LLC1,387,866$16.5M1.48%013F-HRTimelineGroup
Venrock Adviser, LLC1,387,864$16.5M0.93%013F-HRTimeline
BVF INC/ILin group BVF INC/IL1,387,863$16.5M0.67%013F-HRTimelineGroup
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC679,824$8.08M0.31%+629,67213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC657,900$7.82M<0.01%new13F-HRTimelineGroup
Logos Global Management LP600,000$7.13M0.7%+46,31413F-HRTimeline
PERCEPTIVE ADVISORS LLCin group PERCEPTIVE ADVISORS LLC453,686$5.39M0.16%013F-HRTimelineGroup
Deep Track Capital, LP453,686$5.39M0.15%013F-HRTimeline
Boxer Capital Management, LLCin group Boxer Capital Management, LLC453,686$5.39M1.72%013F-HR/ATimelineGroup
Commodore Capital LPin group Commodore Capital LP450,829$5.36M0.26%-2,85713F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/383,595$4.56M<0.01%new13F-HRTimeline
Driehaus Capital Management LLC302,457$3.6M0.03%013F-HRTimeline
Frazier Life Sciences Management, L.P.272,951$3.25M0.1%-180,73413F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…200,005$2.38M<0.01%+99,09313F-HRTimelineGroup
Soleus Capital Management, L.P.200,000$2.38M0.13%-200,00013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.109,115$1.3M<0.01%+103,06413F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.102,714$1.22M0.01%+75,61813F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.75,614$899K<0.01%013F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC69,134$822K<0.01%new13F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP43,694$520K<0.01%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC36,975$440K<0.01%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP28,318$337K<0.01%new13F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC26,900$320K<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC25,593$304K<0.01%new13F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …24,923$296K<0.01%new13F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP18,617$221K<0.01%new13F-HRTimelineGroup
Affinity Asset Advisors, LLC17,998$214K0.02%-262,03313F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…17,698$210K<0.01%-162,18813F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP16,816$200K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG12,661$151K<0.01%+12,43813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/3,863$45.9K<0.01%-5,36813F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC798$9.49K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…200$2.38K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY145$1.72K<0.01%-15,24913F-HR/ATimelineGroup
GROUP ONE TRADING LLC82$975<0.01%-8013F-HRTimeline
SBI Securities Co., Ltd.68$809<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.26$374<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO17$202<0.01%new13F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS4$48<0.01%013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA20$00%013F-HRTimelineGroupValue filed as zero, left out of ratios.