ADAR1 Capital Management, LLC 13F holdings, Q2 2025
Holdings as of June 30, 2025 · filings on SEC EDGAR · latest filing →
ADAR1 Capital Management, LLC disclosed 201 US equity positions worth $615.9m in its Q2 2025 13F filing. The largest position was KROS at 11.7% of the reported book, followed by PTGX and BOXX. Against the Q1 2025 filing, it opened 6 new positions, added to 23 and reduced 11 among the top 50 holdings.
What did ADAR1 Capital Management, LLC own in Q2 2025? Top 50 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q1 2025 |
|---|---|---|---|---|---|---|---|
| 1 | KROS KEROS THERAPEUTICS INC | Healthcare | 11.7% | $71.9m | 5,389,264 | 263% | added |
| 2 | PTGX PROTAGONIST THERAPEUTICS INC | Healthcare | 8.5% | $52.4m | 948,069 | 1% | added |
| 3 | BOXX EA SERIES TRUST | 6.2% | $38.0m | 337,125 | 0% | held | |
| 4 | ZLAB ZAI LAB LTD | Healthcare | 4.8% | $29.7m | 850,437 | -10% | reduced |
| 5 | ABVX ABIVAX SA | 3.8% | $23.5m | 3,071,340 | 39% | added | |
| 6 | ROIV ROIVANT SCIENCES LTD | Healthcare | 3.6% | $21.9m | 1,940,797 | -44% | reduced |
| 7 | PROTHENA CORP PLC | 3.3% | $20.5m | 3,375,009 | – | new | |
| 8 | CYTK CYTOKINETICS INC | Healthcare | 3.1% | $19.2m | 582,147 | 49% | added |
| 9 | SPY SPDR S&P 500 ETF TR | 2.3% | $14.0m | 22,684 | – | new | |
| 10 | CGON CG ONCOLOGY INC | Healthcare | 2.2% | $13.6m | 523,216 | 74% | added |
| 11 | BIL SPDR SERIES TRUST | 2.0% | $12.4m | 135,585 | 0% | held | |
| 12 | BBIO BRIDGEBIO PHARMA INC | Healthcare | 1.8% | $11.2m | 259,659 | -24% | reduced |
| 13 | IKT INHIBIKASE THERAPEUTICS INC | 1.6% | $10.0m | 5,122,105 | 0% | held | |
| 14 | SEPN SEPTERNA INC | 1.5% | $9.0m | 847,227 | 18% | added | |
| 15 | ABUS ARBUTUS BIOPHARMA CORP | Healthcare | 1.4% | $8.7m | 2,825,773 | 50% | added |
| 16 | ETNBGBP 89BIO INC | 1.4% | $8.6m | 875,983 | 9% | added | |
| 17 | IMVT IMMUNOVANT INC | Healthcare | 1.4% | $8.6m | 535,066 | -45% | reduced |
| 18 | SVRA SAVARA INC | Healthcare | 1.3% | $8.2m | 3,600,670 | 165% | added |
| 19 | XENE XENON PHARMACEUTICALS INC | Healthcare | 1.3% | $8.1m | 259,503 | 103% | added |
| 20 | BIOA BIOAGE LABS INC | 1.3% | $8.0m | 1,937,123 | 99% | added | |
| 21 | PERCEPTIVE CAP SOLUTIONS COR | 1.3% | $8.0m | 750,000 | 0% | held | |
| 22 | AMLX AMYLYX PHARMACEUTICALS INC | Healthcare | 1.3% | $7.7m | 1,205,101 | -18% | reduced |
| 23 | CTMX CYTOMX THERAPEUTICS INC | Healthcare | 1.1% | $7.0m | 3,081,414 | 6451% | added |
| 24 | TSHA TAYSHA GENE THERAPIES INC | Healthcare | 1.1% | $7.0m | 3,009,870 | 182% | added |
| 25 | SG7 SAGE THERAPEUTICS INC | 1.1% | $6.6m | 721,599 | -3% | reduced | |
| 26 | RAPT RAPT THERAPEUTICS INC | 1.0% | $6.3m | 783,217 | – | new | |
| 27 | AA MISSION ACQUISITION CORP | 1.0% | $6.0m | 578,359 | 0% | held | |
| 28 | IONS IONIS PHARMACEUTICALS INC | Healthcare | 1.0% | $5.9m | 148,461 | – | new |
| 29 | TEVA TEVA PHARMACEUTICAL INDS LTD | Healthcare | 0.9% | $5.8m | 345,878 | -34% | reduced |
| 30 | OAKTREE ACQUISITION CORP III | 0.9% | $5.5m | 516,482 | 0% | held | |
| 31 | VERVE THERAPEUTICS INC | 0.9% | $5.3m | 469,018 | – | new | |
| 32 | RVMD REVOLUTION MEDICINES INC | Healthcare | 0.8% | $4.9m | 134,136 | -24% | reduced |
| 33 | HELIX ACQUISITION CORP II | 0.8% | $4.7m | 442,615 | -6% | reduced | |
| 34 | SHY ISHARES TR | 0.7% | $4.4m | 53,337 | -48% | reduced | |
| 35 | RZLT REZOLUTE INC | 0.7% | $4.4m | 989,297 | -11% | reduced | |
| 36 | BBIO BRIDGEBIO PHARMA INC | 0.7% | $4.2m | 4,500,000 | 0% | held | |
| 37 | MLYS MINERALYS THERAPEUTICS INC | Healthcare | 0.7% | $4.1m | 302,125 | 15% | added |
| 38 | CNTA CENTESSA PHARMACEUTICALS PLC | 0.6% | $3.9m | 296,766 | 37% | added | |
| 39 | MNPR MONOPAR THERAPEUTICS INC | 0.6% | $3.6m | 100,974 | 0% | held | |
| 40 | SRPT SAREPTA THERAPEUTICS INC | Healthcare | 0.6% | $3.6m | 210,313 | 71% | added |
| 41 | ARDX ARDELYX INC | Healthcare | 0.6% | $3.6m | 915,130 | 86% | added |
| 42 | THIRD HARMONIC BIO INC | 0.5% | $3.4m | 622,873 | 523% | added | |
| 43 | PCVX VAXCYTE INC | Healthcare | 0.5% | $3.2m | 98,032 | 666% | added |
| 44 | RYTM RHYTHM PHARMACEUTICALS INC | Healthcare | 0.5% | $2.9m | 45,390 | 23% | added |
| 45 | VRNA VERONA PHARMA PLC | 0.4% | $2.7m | 28,450 | 42% | added | |
| 46 | BBIO BRIDGEBIO PHARMA INC | 0.4% | $2.5m | 2,000,000 | 0% | held | |
| 47 | ALEC ALECTOR INC | Healthcare | 0.4% | $2.4m | 1,723,526 | 353% | added |
| 48 | VRDN VIRIDIAN THERAPEUTICS INC | Healthcare | 0.4% | $2.4m | 170,598 | 116% | added |
| 49 | A SPAC III ACQUISITION CORP | 0.4% | $2.2m | 215,000 | 0% | held | |
| 50 | CRMD CORMEDIX INC | 0.4% | $2.2m | 175,000 | – | new |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.