CBIO · NASDAQ · Biotechnology

Crescent Biopharma (CBIO)

Develops antibody medicines for solid tumors through bispecific and ADC programs.

$18.27
Pre-market−0.24 (−1.30%)
At close$18.51(+3.23%)

Breakdown13F · 13D/G · Form 4

Institutions60 holders · as of Mar 31, 202667.61%25.11M shares
Insiders8 holders · as of Jun 23, 20261.56%580.4K shares
Strategic holders1 holder · as of Jun 10, 20190.13%47.7K shares
Otherremainder30.70%11.40M shares

37.14M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
FMR LLCInstitution
11.13%4.13M13Fas of Mar 31, 2026
BVF Inc/ILInstitution
7.40%2.75M13Fas of Mar 31, 2026
Fairmount Funds Management LLCInstitution
7.40%2.75M13Fas of Mar 31, 2026
VR Adviser, LLCInstitution
5.74%2.13M13Fas of Mar 31, 2026
FCPM Iii Services B.V.Institution
4.52%1.68M13Fas of Mar 31, 2026
Balyasny Asset Management L.P.Institution
4.07%1.51M13Fas of Mar 31, 2026
Vestal Point Capital, LPInstitution
4.04%1.50M13Fas of Mar 31, 2026
Opaleye Management Inc.Institution
3.53%1.31M13Fas of Mar 31, 2026
Tang Capital Management LLCInstitution
3.12%1.16M13Fas of Mar 31, 2026
Vanguard Capital Management LLCInstitution
2.16%801,39513Fas of Mar 31, 2026
Logos Global Management LPInstitution
1.30%482,50013Fas of Mar 31, 2026
Deep Track Capital, LPInstitution
1.22%453,68613Fas of Mar 31, 2026
Nextbio Capital Management LPInstitution
1.00%372,85613Fas of Mar 31, 2026
RTW Investments, LPInstitution
1.00%372,85613Fas of Mar 31, 2026
Millennium Management LLCInstitution
0.87%323,55313Fas of Mar 31, 2026
Price T Rowe Associates Inc /MD/Institution
0.82%303,55113Fas of Mar 31, 2026
Point72 Asset Management, L.P.Institution
0.81%300,00013Fas of Mar 31, 2026
Joshua T. BrummInsiderdirector, officer: Chief Executive Officer
0.76%281,212Form 4filed Jun 23, 2026
Alyeska Investment Group, L.P.Institution
0.71%264,00013Fas of Mar 31, 2026
Goldman Sachs Group IncInstitution
0.62%228,47513Fas of Mar 31, 2026
Susquehanna International Group, LLPInstitution
0.58%213,63513Fas of Mar 31, 2026
Perceptive Advisors LLCInstitution
0.56%206,94213Fas of Mar 31, 2026
Marshall Wace, LLPInstitution
0.54%200,78013Fas of Mar 31, 2026
Exome Asset Management LLCInstitution
0.41%153,19113Fas of Mar 31, 2026
Jennison Associates LLCInstitution
0.41%152,97413Fas of Mar 31, 2026

13F — a manager's quarterly holdings · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

60 holders · 25.11M shares · 18 new positions · 34 increased · 8 reduced · 12 closed

HolderShares% outstandingChg q/qFiled
FMR LLC4.13M11.13%0May 15, 2026
BVF Inc/IL2.75M7.40%0May 15, 2026
Fairmount Funds Management LLC2.75M7.40%0May 15, 2026
VR Adviser, LLC2.13M5.74%0May 15, 2026
FCPM Iii Services B.V.1.68M4.52%0May 15, 2026
Balyasny Asset Management L.P.1.51M4.07%+1.40MMay 15, 2026
Vestal Point Capital, LP1.50M4.04%0May 15, 2026
Opaleye Management Inc.1.31M3.53%+134.3KMay 15, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Peter Harwinincl. Fairmount Funds Management LLC, Tomas Kiselak +1 more16.52%6.60M13DJul 20, 2026
FMR LLC15.00%4.13M13GFeb 5, 2026
Arsani Williamincl. Logos Global Management LP, Logos Global Management GP LLC +2 more11.00%13GNov 27, 2024
1Globe Capital LLC10.30%1.43M13GOct 14, 2025
Venrock Healthcare Capital Partners III, L.P.9.90%1.39M13GJun 23, 2025
RA Capital Healthcare Fund, L.P.incl. Rajeev Shah, Peter Kolchinsky +1 more9.90%13GNov 6, 2024
ForGrowth III PA B.V.6.10%1.68M13GDec 11, 2025
Balyasny Asset Management L.P.5.48%1.51M13GMay 15, 2026
Vestal Point Capital, LP5.40%1.50M13GFeb 17, 2026
Biotechnology Value Fund L P5.10%707.1K13GAug 14, 2025

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Jul 16, 2026
Fairmount Funds Management LLCdirector, 10 percent owner:
Purchase · 2 lots1,379,347$8.975,895,353
Jun 22, 2026
Joshua T. Brummdirector, officer: Chief Executive Officer
Sale42,305$17.99281,212
Jun 22, 2026
Jonathan McNeillofficer: President and COO
Sale20,549$17.99139,158
Jun 22, 2026
Ellie Eunkyung Imofficer: Chief Medical Officer
Sale1,219$17.9922,069
Jun 22, 2026
Barbara Harlin Bisphamofficer: See Remarks
Sale1,218$17.9919,330
Jun 22, 2026
Richard William Scalzoofficer: Chief Financial Officer
Sale1,112$17.9920,298
Jun 22, 2026
Jan Pinkasofficer: Chief Scientific Officer
Sale1,288$17.9922,239
Jun 22, 2026
Ryan Lynchofficer: See Remarks
Sale465$17.9913,871
Dec 4, 2025
Fairmount Funds Management LLCdirector, 10 percent owner:
Purchase · 2 lots1,491,434$12.234,516,006

CongressHouse and Senate disclosures

Not reported.