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Superstring Capital Management 13F Portfolio

Portfolio Manager
Superstring Capital Management LP
Performance
+26.99% (2026 Q2)
AUM (13F)
$158.38M
# of Holdings
32
Performance Rank
Allocation (Top 20)
92.66%
Latest filing
Q2 2026

Superstring Capital Management LP Holdings Map

Top 32 Superstring Capital Management LP Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
COGT
COGENT BIOSCIENCES INC
8.39%343.3K$13.3M
+52.46%(+118.13K)
2025-Q2: 963.0K shares2025-Q3: 361.4K shares2025-Q4: 366.2K shares2026-Q1: 225.2K shares2026-Q2: 343.3K shares
$18.67(+99.84%)
2026-06-30
AXSM
AXSOME THERAPEUTICS INC.
8.33%53.9K$13.2M
+380.66%(+42.70K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 37.4K shares2026-Q1: 11.2K shares2026-Q2: 53.9K shares
$190.34(+12.26%)
2026-06-30
GMAB
GENMAB A/S
7.47%430.6K$11.8M
+118.90%(+233.89K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 29.2K shares2026-Q1: 196.7K shares2026-Q2: 430.6K shares
$27.77(+12.86%)
2026-06-30
CLDX
CELLDEX THERAPEUTICS INC NEW
6.76%287.6K$10.7M
+59.73%(+107.53K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 88.3K shares2026-Q1: 180.0K shares2026-Q2: 287.6K shares
$30.00(+42.02%)
2026-06-30
TRVI
TREVI THERAPEUTICS INC
6.17%524.2K$9.8M
+108.38%(+272.66K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 148.3K shares2026-Q1: 251.6K shares2026-Q2: 524.2K shares
$13.23(+35.26%)
2026-06-30
RVMD
REVOLUTION MEDICINES INC
6.04%51.1K$9.6Mnew2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 54.9K shares2026-Q1: 0 shares2026-Q2: 51.1K shares
$63.18(+219.75%)
2026-06-30
DFTX
DEFINIUM THERAPEUTICS INC
5.59%188.3K$8.9M
-46.43%(-163.18K)
2025-Q2: 0 shares2025-Q3: 0 shares2025-Q4: 0 shares2026-Q1: 351.5K shares2026-Q2: 188.3K shares
$16.14(+171.91%)
2026-06-30
VIR
VIR BIOTECHNOLOGY INC
5.49%853.7K$8.7M
+16.86%(+123.14K)
2025-Q2: 0 shares2025-Q3: 150.3K shares2025-Q4: 0 shares2026-Q1: 730.5K shares2026-Q2: 853.7K shares
$7.39(+23.14%)
2026-06-30
IMVT
IMMUNOVANT INC
5.07%208.4K$8.0M
-41.73%(-149.24K)
2025-Q2: 0 shares2025-Q3: 341.3K shares2025-Q4: 288.7K shares2026-Q1: 357.6K shares2026-Q2: 208.4K shares
$18.52(+125.80%)
2026-06-30
URGN
UROGEN PHARMA LTD
4.45%191.3K$7.0M
-50.61%(-196.06K)
2025-Q2: 87.9K shares2025-Q3: 87.9K shares2025-Q4: 718.4K shares2026-Q1: 387.4K shares2026-Q2: 191.3K shares
$20.67(+135.88%)
2026-06-30

About Superstring Capital Management LPโ€™s portfolio

Superstring Capital Management LP reports $158.38M in US-listed equity holdings across 32 positions in its most recent 13F filing. Its largest disclosed positions are COGT (8.4%), AXSM (8.3%) and GMAB (7.5%). The top 20 holdings account for 92.66% of reported assets. Its disclosed equity book has returned +34.24% cumulatively over 10 quarters. Figures reflect the Q2 2026 filing.

Portfolio concentration

Portfolio concentration
COGT โ€” 8.4% ($13.29M)AXSM โ€” 8.3% ($13.20M)GMAB โ€” 7.5% ($11.83M)CLDX โ€” 6.8% ($10.70M)TRVI โ€” 6.2% ($9.78M)RVMD โ€” 6.0% ($9.56M)DFTX โ€” 5.6% ($8.86M)VIR โ€” 5.5% ($8.70M)IMVT โ€” 5.1% ($8.03M)URGN โ€” 4.4% ($7.04M)Other โ€” 36.2% ($57.41M)
64%in top 10
  • COGT8.4%
  • AXSM8.3%
  • GMAB7.5%
  • CLDX6.8%
  • TRVI6.2%
  • RVMD6.0%
  • DFTX5.6%
  • VIR5.5%
  • IMVT5.1%
  • URGN4.4%
  • Other36.2%

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
8
RVMDREVOLUTION MEDICINES INC6.0%
ONCBEONE MEDICINES LTD2.2%
HELPCYBIN INC0.8%
KNSAKINIKSA PHARMACEUTICALS INTL0.8%
+4 opened
Added to
13
AXSMAXSOME THERAPEUTICS INC.+380.7%
GMABGENMAB A/S+118.9%
TRVITREVI THERAPEUTICS INC+108.4%
COGTCOGENT BIOSCIENCES INC+52.5%
+9 more
Trimmed
9
DFTXDEFINIUM THERAPEUTICS INC-46.4%
URGNUROGEN PHARMA LTD-50.6%
IMVTIMMUNOVANT INC-41.7%
SVRASAVARA INC-38.4%
+5 more

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Source filings

Holdings on this page are parsed from Superstring Capital Management LPโ€™s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1931118). View Superstring Capital Management LPโ€™s 13F filings on SEC

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