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Superstring Capital Management LP

CIK:0001931118
Hedge Fund
$218M AUM
36 holdings
New York, NY, United States
Founded:2019
5 employees
Latest filing:Jun 30, 2025

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.

Top Buys
N
NBIXNEUROCRINE BIOSCIENCES INC
+$5.1M
R
RAREULTRAGENYX PHARMACEUTICAL IN
+$4.7M
J
JAZZJAZZ PHARMACEUTICALS PLC
+$4.7M
I
IONSIONIS PHARMACEUTICALS INC
+$3.9M
C
COGTCOGENT BIOSCIENCES INC
+$2.3M
Top Sells
Z
ZLABZAI LAB LTD
-$5.9M
L
LEGNLEGEND BIOTECH CORP
-$5.4M
P
PFEPFIZER INC
-$5.0M
U
URGNUROGEN PHARMA LTD
-$3.5M
S
SMMTSUMMIT THERAPEUTICS INC
-$2.5M

Top Holdings

C
COGTCOGENT BIOSCIENCES INC
+8.2%$6.9M
V
VRNAVERONA PHARMA PLC
+7.7%$6.5M
N
NBIXNEUROCRINE BIOSCIENCES INC
+6.0%$5.1M
T
TERNTERNS PHARMACEUTICALS INC
+5.7%$4.8M
R
RAREULTRAGENYX PHARMACEUTICAL IN
+5.6%$4.7M

Equity Positions (34)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
C
COGT
COGENT BIOSCIENCES INC8.19%$6.9M962,951$7.68$7.18+$2.3M
V
VRNA
VERONA PHARMA PLC7.73%$6.5M68,982$63.49$94.58+$377.2K
N
NBIX
NEUROCRINE BIOSCIENCES INC6.04%$5.1M40,608$125.69$125.69+$5.1M
T
TERN
TERNS PHARMACEUTICALS INC5.68%$4.8M1,286,681$6.70$3.73+$1.1M
R
RARE
ULTRAGENYX PHARMACEUTICAL IN5.61%$4.7M130,422$36.36$36.36+$4.7M

Options Positions (1)

TickerSecurityActionTypeNotional ValueContractsUnderlying PricePremium PaidChange (Contracts)Change (Value)
S
SLNO
SOLENO THERAPEUTICS INCNew
Put
$4.2M500$83.78$83.78+500+$4.2M

Industry Allocation

PHARMACEUTICAL PREPARATIONS
+79.5%
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
+11.9%
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
+8.3%
SERVICES-COMPUTER PROCESSING & DATA PREPARATION
+0.3%