Superstring Capital Management
Latest statistics and disclosures from Superstring Capital Management's latest quarterly 13F-HR filing:
- Top 5 stock holdings are ZLAB, CDTX, TERN, ETNB, IMVT, and represent 29.99% of Superstring Capital Management's stock portfolio.
- Added to shares of these 10 stocks: CDTX (+$6.6M), IMVT (+$5.5M), SMMT, IQV, REGN, DRUG, NKTR, ETNB, AVTX, SNY.
- Started 16 new stock positions in CRBP, NKTR, AVTX, QURE, IMVT, KROS, PTGX, DRUG, IQV, SNY. IMAB, SRRK, VIR, SMMT, REGN, CDTX.
- Reduced shares in these 10 stocks: COGT (-$8.6M), SLNO (-$7.0M), VRNA (-$6.5M), TVTX (-$5.3M), , RARE, IONS, TERN, ORIC, CYTK.
- Sold out of its positions in RNA, CYTK, IONS, KYTX, LQDA, MLTX, NBIX, OCUL, RCKT, SY. SLNO, RARE, UTHR, VRNA, LSBCF, WVE.
- Superstring Capital Management was a net seller of stock by $-7.5M.
- Superstring Capital Management has $102M in assets under management (AUM), dropping by 20.18%.
- Central Index Key (CIK): 0001931118
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Portfolio Holdings for Superstring Capital Management
Superstring Capital Management holds 35 positions in its portfolio as reported in the September 2025 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
|---|---|---|---|---|---|---|
| Zai Lab Adr (ZLAB) | 6.7 | $6.8M | +48% | 201k | 33.89 |
|
| Cidara Therapeutics Com New (CDTX) | 6.5 | $6.6M | NEW | 69k | 95.76 |
|
| Terns Pharmaceuticals (TERN) | 5.8 | $5.9M | -38% | 790k | 7.51 |
|
| 89bio (ETNB) | 5.6 | $5.7M | +81% | 385k | 14.70 |
|
| Immunovant (IMVT) | 5.4 | $5.5M | NEW | 341k | 16.12 |
|
| Jazz Pharmaceuticals Shs Usd (JAZZ) | 5.3 | $5.4M | -7% | 41k | 131.80 |
|
| Cogent Biosciences (COGT) | 5.1 | $5.2M | -62% | 361k | 14.36 |
|
| Savara (SVRA) | 4.6 | $4.7M | +17% | 1.3M | 3.57 |
|
| Bridgebio Pharma (BBIO) | 4.5 | $4.6M | -8% | 89k | 51.94 |
|
| Summit Therapeutics (SMMT) | 4.0 | $4.1M | NEW | 197k | 20.66 |
|
| Iqvia Holdings (IQV) | 3.6 | $3.6M | NEW | 19k | 189.94 |
|
| Cabaletta Bio (CABA) | 3.6 | $3.6M | +45% | 1.5M | 2.34 |
|
| Regeneron Pharmaceuticals (REGN) | 3.5 | $3.6M | NEW | 6.4k | 562.27 |
|
| Bright Minds Biosciences Com New (DRUG) | 3.2 | $3.3M | NEW | 54k | 60.66 |
|
| Nektar Therapeutics Com New (NKTR) | 2.9 | $2.9M | NEW | 51k | 56.90 |
|
| Insmed Com Par $.01 (INSM) | 2.8 | $2.8M | +35% | 20k | 144.01 |
|
| Bicara Therapeutics (BCAX) | 2.7 | $2.8M | -7% | 176k | 15.79 |
|
| Avalo Therapeutics Com New (AVTX) | 2.4 | $2.4M | NEW | 188k | 12.71 |
|
| Sanofi Sa Sponsored Adr (SNY) | 2.3 | $2.4M | NEW | 50k | 47.20 |
|
| Zenas Biopharma (ZBIO) | 2.1 | $2.1M | -13% | 97k | 22.20 |
|
| Uniqure Nv SHS (QURE) | 1.9 | $1.9M | NEW | 33k | 58.37 |
|
| Tectonic Therapeutic (TECX) | 1.8 | $1.9M | +50% | 119k | 15.69 |
|
| Urogen Pharma (URGN) | 1.7 | $1.8M | 88k | 19.95 |
|
|
| Protara Therapeutics Com Stk (TARA) | 1.5 | $1.6M | 360k | 4.35 |
|
|
| Keros Therapeutics (KROS) | 1.5 | $1.5M | NEW | 95k | 15.82 |
|
| Scholar Rock Hldg Corp (SRRK) | 1.4 | $1.5M | NEW | 40k | 37.24 |
|
| Protagonist Therapeutics (PTGX) | 1.3 | $1.4M | NEW | 20k | 66.43 |
|
| Travere Therapeutics (TVTX) | 1.3 | $1.3M | -80% | 54k | 23.90 |
|
| Oric Pharmaceuticals (ORIC) | 1.1 | $1.1M | -74% | 89k | 12.00 |
|
| Rapt Therapeutics Com New (RAPT) | 0.9 | $888k | +32% | 34k | 25.79 |
|
| Vir Biotechnology (VIR) | 0.8 | $858k | NEW | 150k | 5.71 |
|
| Corbus Pharmaceuticals Hldgs Com New (CRBP) | 0.7 | $729k | NEW | 58k | 12.65 |
|
| I Mab Sponsored Ads (IMAB) | 0.5 | $529k | NEW | 140k | 3.78 |
|
| Biomea Fusion (BMEA) | 0.5 | $505k | 250k | 2.02 |
|
|
| Century Therapeutics (IPSC) | 0.2 | $231k | 463k | 0.50 |
|
Past Filings by Superstring Capital Management
SEC 13F filings are viewable for Superstring Capital Management going back to 2023
- Superstring Capital Management 2025 Q3 filed Nov. 14, 2025
- Superstring Capital Management 2025 Q2 filed Aug. 14, 2025
- Superstring Capital Management 2025 Q1 filed May 15, 2025
- Superstring Capital Management 2024 Q4 filed Feb. 14, 2025
- Superstring Capital Management 2024 Q3 filed Nov. 14, 2024
- Superstring Capital Management 2024 Q2 filed Aug. 14, 2024
- Superstring Capital Management 2024 Q1 filed May 15, 2024
- Superstring Capital Management 2023 Q4 filed Feb. 14, 2024