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Cormorant Asset Management 13F Portfolio ยท Bihua Chen

Portfolio Manager
Bihua Chen
Performance
+11.01% (2026 Q2)
AUM (13F)
$1.95B
# of Holdings
50
Performance Rank
Allocation (Top 20)
77.88%
Latest filing
Q2 2026

Cormorant Asset Management LP Holdings Map

Top 44 Cormorant Asset Management LP Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
PRAX
PRAXIS PRECISION MEDICINES I
10.98%640.0K$214.3M
-27.72%(-245.50K)
2025-Q2: 1.63M shares2025-Q3: 1.00M shares2025-Q4: 950.0K shares2026-Q1: 885.5K shares2026-Q2: 640.0K shares
$59.57(+515.72%)
2026-06-30
BBOT
BRIDGEBIO ONCOLOGY THERAPEUT
6.98%17.88M$136.2M
+0.00%(+0)
2025-Q2: 0 shares2025-Q3: 17.88M shares2025-Q4: 17.88M shares2026-Q1: 17.88M shares2026-Q2: 17.88M shares
$11.10(-18.38%)
2026-06-30
RAPP
RAPPORT THERAPEUTICS INC
5.67%2.66M$110.7M
-10.14%(-300.00K)
2025-Q2: 2.94M shares2025-Q3: 3.19M shares2025-Q4: 3.03M shares2026-Q1: 2.96M shares2026-Q2: 2.66M shares
$23.04(+105.77%)
2026-06-30
ERAS
ERASCA INC
5.63%6.00M$109.9M
+3.45%(+200.00K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 5.80M shares2026-Q2: 6.00M shares
$10.17(+80.68%)
2026-06-30
EWTX
EDGEWISE THERAPEUTICS INC
5.23%2.51M$102.0M
-23.01%(-750.00K)
2025-Q2: 4.25M shares2025-Q3: 4.01M shares2025-Q4: 3.29M shares2026-Q1: 3.26M shares2026-Q2: 2.51M shares
$23.25(+89.98%)
2026-06-30
EYPT
EYEPOINT INC
5.13%7.00M$100.1M
-15.31%(-1.26M)
2025-Q2: 8.32M shares2025-Q3: 8.32M shares2025-Q4: 8.27M shares2026-Q1: 8.27M shares2026-Q2: 7.00M shares
$12.29(+20.03%)
2026-06-30
ALMS
ALUMIS INC
4.74%3.29M$92.5M
-16.80%(-663.64K)
2025-Q2: 2.15M shares2025-Q3: 2.15M shares2025-Q4: 3.64M shares2026-Q1: 3.95M shares2026-Q2: 3.29M shares
$11.08(+128.33%)
2026-06-30
ABVX
ABIVAX SA
4.61%675.0K$90.0M
-11.18%(-85.00K)
2025-Q2: 2.13M shares2025-Q3: 1.95M shares2025-Q4: 1.35M shares2026-Q1: 760.0K shares2026-Q2: 675.0K shares
$10.70(+1034.72%)
2026-06-30
DNTH
DIANTHUS THERAPEUTICS INC
3.75%750.0K$73.1M
-21.05%(-200.00K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 950.0K shares2026-Q2: 750.0K shares
$62.56(+85.34%)
2026-06-30
DRUG
BRIGHT MINDS BIOSCIENCES INC
3.24%900.0K$63.2M
-15.04%(-159.33K)
2025-Q2: 1.06M shares2025-Q3: 1.06M shares2025-Q4: 1.06M shares2026-Q1: 1.06M shares2026-Q2: 900.0K shares
$18.60(+311.08%)
2026-06-30

About Cormorant Asset Management LPโ€™s portfolio

Cormorant Asset Management LP reports $1.95B in US-listed equity holdings across 50 positions in its most recent 13F filing. Its largest disclosed positions are PRAX (11.0%), BBOT (7.0%) and RAPP (5.7%). The top 20 holdings account for 77.88% of reported assets. Its disclosed equity book has returned +23.70% on a three-year cumulative basis. Figures reflect the Q2 2026 filing.

Portfolio concentration

Portfolio concentration
PRAX โ€” 12.0% ($214.27M)BBOT โ€” 7.6% ($136.23M)RAPP โ€” 6.2% ($110.74M)ERAS โ€” 6.1% ($109.92M)EWTX โ€” 5.7% ($101.98M)EYPT โ€” 5.6% ($100.10M)ALMS โ€” 5.2% ($92.46M)ABVX โ€” 5.0% ($89.95M)DNTH โ€” 4.1% ($73.11M)DRUG โ€” 3.5% ($63.18M)Other โ€” 39.1% ($700.35M)
61%in top 10
  • PRAX12.0%
  • BBOT7.6%
  • RAPP6.2%
  • ERAS6.1%
  • EWTX5.7%
  • EYPT5.6%
  • ALMS5.2%
  • ABVX5.0%
  • DNTH4.1%
  • DRUG3.5%
  • Other39.1%

Portfolio changes

What the fund actually did

Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.

New buys
7
CLYMCLIMB BIO INC1.4%
SYRESPYRE THERAPEUTICS INC1.0%
DFTXDEFINIUM THERAPEUTICS INC1.0%
ELVNENLIVEN THERAPEUTICS INC0.4%
+3 opened
Added to
4
BHVNBIOHAVEN LTD+48.3%
ANLADLAI NORTYE LTD+37.3%
SNSEFAETH THERAPEUTICS INC+235.8%
ERASERASCA INC+3.4%
Trimmed
28
PRAXPRAXIS PRECISION MEDICINES I-27.7%
MBXMBX BIOSCIENCES INC-50.9%
EWTXEDGEWISE THERAPEUTICS INC-23.0%
MLTXMOONLAKE IMMUNOTHERAPEUTICS-28.5%
+24 more

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Source filings

Holdings on this page are parsed from Cormorant Asset Management LPโ€™s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1583977). View Cormorant Asset Management LPโ€™s 13F filings on SEC

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