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Nextbio Capital Management 13F Portfolio

Portfolio Manager
Nextbio Capital Management LP
Performance
+12.00% (2026 Q2)
AUM (13F)
$217.40M
# of Holdings
22
Performance Rank
N/A
Allocation (Top 20)
98.66%
Latest filing
Q2 2026

Nextbio Capital Management LP Holdings Map

Top 22 Nextbio Capital Management LP Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
PTGX
PROTAGONIST THERAPEUTICS INC
12.37%219.3K$26.9M
-4.48%(-10.29K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 229.6K shares2026-Q1: 229.6K shares2026-Q2: 219.3K shares
$76.88(+98.20%)
2026-06-30
STTK
SHATTUCK LABS INC
11.9%3.73M$25.9M
+18.33%(+577.44K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 3.15M shares2026-Q1: 3.15M shares2026-Q2: 3.73M shares
$3.55(+106.12%)
2026-06-30
CMPS
COMPASS PATHWAYS PLC
11.56%1.78M$25.1M
-12.15%(-245.65K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 752.6K shares2026-Q1: 2.02M shares2026-Q2: 1.78M shares
$6.25(+123.60%)
2026-06-30
GPCR
STRUCTURE THERAPEUTICS INC
7.71%312.5K$16.8M
+134.54%(+179.26K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 94.4K shares2026-Q1: 133.2K shares2026-Q2: 312.5K shares
$50.05(+9.30%)
2026-06-30
VOR
VOR BIOPHARMA INC
7.53%889.2K$16.4M
-11.08%(-110.80K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 1000.0K shares2026-Q1: 1000.0K shares2026-Q2: 889.2K shares
$30.90(-24.63%)
2026-06-30
RYTM
RHYTHM PHARMACEUTICALS INC
6.73%131.8K$14.6M
+4.51%(+5.68K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 67.6K shares2026-Q1: 126.1K shares2026-Q2: 131.8K shares
$100.48(+16.03%)
2026-06-30
PVLA
PALVELLA THERAPEUTICS INC NE
6.32%89.9K$13.7M
+8.74%(+7.22K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 82.7K shares2026-Q1: 82.7K shares2026-Q2: 89.9K shares
$87.54(+78.36%)
2026-06-30
XENE
XENON PHARMACEUTICALS INC
5.09%183.2K$11.1M
+0.00%(+0)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 183.7K shares2026-Q1: 183.2K shares2026-Q2: 183.2K shares
$42.49(+52.37%)
2026-06-30
ZBIO
ZENAS BIOPHARMA INC
4.98%426.7K$10.8M
+0.00%(+0)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 322.0K shares2026-Q1: 426.7K shares2026-Q2: 426.7K shares
$28.93(-0.71%)
2026-06-30
ORIC
ORIC PHARMACEUTICALS INC
3.52%706.1K$7.6M
+34.85%(+182.50K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 615.7K shares2026-Q1: 523.6K shares2026-Q2: 706.1K shares
$10.46(+29.62%)
2026-06-30

About Nextbio Capital Management LPโ€™s portfolio

Nextbio Capital Management LP reports $217.40M in US-listed equity holdings across 22 positions in its most recent 13F filing. Its largest disclosed positions are PTGX (12.4%), STTK (11.9%) and CMPS (11.6%). The top 20 holdings account for 98.66% of reported assets. Its disclosed equity book has returned +26.20% cumulatively over 2 quarters. Figures reflect the Q2 2026 filing.

Portfolio concentration

Portfolio concentration
PTGX โ€” 12.4% ($26.89M)STTK โ€” 11.9% ($25.87M)CMPS โ€” 11.6% ($25.13M)GPCR โ€” 7.7% ($16.77M)VOR โ€” 7.5% ($16.37M)RYTM โ€” 6.7% ($14.63M)PVLA โ€” 6.3% ($13.74M)XENE โ€” 5.1% ($11.06M)ZBIO โ€” 5.0% ($10.83M)ORIC โ€” 3.5% ($7.65M)Other โ€” 22.3% ($48.47M)
78%in top 10
  • PTGX12.4%
  • STTK11.9%
  • CMPS11.6%
  • GPCR7.7%
  • VOR7.5%
  • RYTM6.7%
  • PVLA6.3%
  • XENE5.1%
  • ZBIO5.0%
  • ORIC3.5%
  • Other22.3%

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
3
PHVSPHARVARIS N V1.7%
BIOABIOAGE LABS INC1.1%
LBRXLB PHARMACEUTICALS INC1.0%
Added to
7
GPCRSTRUCTURE THERAPEUTICS INC+134.5%
STTKSHATTUCK LABS INC+18.3%
ORICORIC PHARMACEUTICALS INC+34.9%
IVAINVENTIVA SA+34.1%
+3 more
Trimmed
5
CMPSCOMPASS PATHWAYS PLC-12.2%
VORVOR BIOPHARMA INC-11.1%
PTGXPROTAGONIST THERAPEUTICS INC-4.5%
EVMNEVOMMUNE INC-35.3%
+1 more

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Source filings

Holdings on this page are parsed from Nextbio Capital Management LPโ€™s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 2038158). View Nextbio Capital Management LPโ€™s 13F filings on SEC

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