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Superstring Capital Management LP
Superstring Capital Management LP is a New York-based hedge fund and SEC-registered investment adviser founded in 2019, headquartered at 150 E 52nd St, New York, NY 10022. With approximately 5 employees, the firm manages assets for pooled investment vehicles and institutional clients, as reflected in regulatory filings and reporting. Their leadership is composed of experienced finance professionals, and they file quarterly Form 13F filings detailing holdings primarily in the healthcare and biotechnology sectors.
Investment Strategy
Superstring Capital Management LP primarily manages hedge fund vehicles focused on public equity investments, particularly in biopharmaceutical, biotechnology, and healthcare sectors. Their strategy centers on deep fundamental research, seeking opportunities among mid- and small-cap companies with significant growth or turnaround potential. The portfolio demonstrates an active approach to capital allocation, with notable concentration in the healthcare/life sciences segments while utilizing both long and short positions to generate absolute returns. The firm primarily serves institutional clients through pooled investment vehicles.
Latest 13F Filing Activity
Superstring Capital Management LP filed their most recent 13F report on Jun 30, 2025 disclosing 34 equity positions and 1 options positions with a total 13F market value of $84M. The fund increased holdings in Neurocrine Biosciences Inc., Ultragenyx Pharmaceutical in, Jazz Pharmaceuticals PLC among other positions. Superstring Capital Management LP reduced exposure to Zai Lab LTD, Legend Biotech Corp., Pfizer Inc. among others.
Top Holdings
Equity Positions (34)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
C COGT | COGENT BIOSCIENCES INC | 8.19% | $6.9M | 962,951 | $7.68 | $7.18 | +$2.3M |
V VRNA | VERONA PHARMA PLC | 7.73% | $6.5M | 68,982 | $63.49 | $94.58 | +$377.2K |
N NBIX | NEUROCRINE BIOSCIENCES INC | 6.04% | $5.1M | 40,608 | $125.69 | $125.69 | +$5.1M |
T TERN | TERNS PHARMACEUTICALS INC | 5.68% | $4.8M | 1,286,681 | $6.70 | $3.73 | +$1.1M |
R RARE | ULTRAGENYX PHARMACEUTICAL IN | 5.61% | $4.7M | 130,422 | $36.36 | $36.36 | +$4.7M |
Options Positions (1)
| Ticker | Security | Action | Type | Notional Value | Contracts | Underlying Price | Premium Paid | Change (Contracts) | Change (Value) |
|---|---|---|---|---|---|---|---|---|---|
S SLNO | SOLENO THERAPEUTICS INC | New | Put | $4.2M | 500 | $83.78 | $83.78 | +500 | +$4.2M |
Industry Allocation
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