Octagon Capital Advisors Lp Top Holdings and 13F Report (2026) About Octagon Capital Advisors LpInvestment ActivityOctagon Capital Advisors Lp has $1.11 billion in total holdings as of June 30, 2026.Octagon Capital Advisors Lp owns shares of 27 different stocks, but just 11 companies or ETFs make up 80% of its holdings.Approximately 13.40% of the portfolio was purchased this quarter.About 15.32% of the portfolio was sold this quarter.This quarter, Octagon Capital Advisors Lp has purchased 29 new stocks and bought additional shares in 4 stocks.Octagon Capital Advisors Lp sold shares of 6 stocks and completely divested from 7 stocks this quarter.Largest Holdings DIANTHUS THERAPEUTICS INC $179,525,699DEFINIUM THERAPEUTICS INC $138,768,000ABIVAX SA $132,327,180Cogent Biosciences $90,945,000ALUMIS INC $79,655,898 Largest New Holdings this Quarter 29479A908 - ERASCA INC $22,991,600 Holding86627T108 - Summit Therapeutics $18,212,500 Holding00704R109 - ADLAI NORTYE LTD $10,749,234 Holding81728A207 - FAETH THERAPEUTICS INC $9,025,250 Holding403783103 - GYRE THERAPEUTICS INC $6,289,601 Holding Largest Purchases this Quarter ABIVAX SA 316,000 shares (about $42.11M)DEFINIUM THERAPEUTICS INC 510,000 shares (about $23.99M)ERASCA INC 1,255,000 shares (about $22.99M)Summit Therapeutics 1,250,000 shares (about $18.21M)ADLAI NORTYE LTD 934,716 shares (about $10.75M) Largest Sales this Quarter Trevi Therapeutics 1,170,000 shares (about $21.82M)Kymera Therapeutics 115,000 shares (about $13.19M)Ocular Therapeutix 1,091,600 shares (about $10.72M)DIANTHUS THERAPEUTICS INC 105,000 shares (about $10.24M)PRECISION BIOSCIENCES INC 886,732 shares (about $6.97M) Sector Allocation Over TimeMap of 500 Largest Holdings ofOctagon Capital Advisors Lp Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorDIANTHUS THERAPEUTICS INC$179,525,699$10,235,400 â–¼-5.4%1,841,66716.1%COMDEFINIUM THERAPEUTICS INC$138,768,000$23,990,400 â–²20.9%2,950,00012.5%COM SHSABIVAX SA$132,327,180$42,110,160 â–²46.7%993,00011.9%SPONSORED ADSCOGTCogent Biosciences$90,945,0000.0%2,350,0008.2%HealthcareALUMIS INC$79,655,8980.0%2,830,7007.2%COMARRIVENT BIOPHARMA INC$68,474,4160.0%1,971,0546.2%COMTSHATaysha Gene Therapies$66,010,992$5,674,998 â–²9.4%9,693,2445.9%HealthcareBIOAGE LABS INC$42,843,4800.0%1,748,0003.9%COMMIRMMirum Pharmaceuticals$39,675,0230.0%338,9003.6%HealthcareKYMRKymera Therapeutics$35,547,700$13,187,050 â–¼-27.1%310,0003.2%HealthcareAKTIS ONCOLOGY INC$30,968,0990.0%960,8472.8%COMXENEXenon Pharmaceuticals$29,576,4000.0%490,0002.7%HealthcareERASCA INC$22,991,600$22,991,600 â–²New Holding1,255,0002.1%CALLPALISADE BIO INC$21,477,5030.0%10,276,3171.9%COMOCULOcular Therapeutix$20,376,500$10,719,512 â–¼-34.5%2,075,0001.8%HealthcareIRONDisc Medicine$19,747,8000.0%270,0001.8%HealthcareSMMTSummit Therapeutics$18,212,500$18,212,500 â–²New Holding1,250,0001.6%HealthcarePHVSPharvaris$15,793,412$10,087,712 â–²176.8%456,7211.4%HealthcareADLAI NORTYE LTD$10,749,234$10,749,234 â–²New Holding934,7161.0%SPONSORED ADSPRECISION BIOSCIENCES INC$10,611,000$6,969,714 â–¼-39.6%1,350,0001.0%COM NEWDBV TECHNOLOGIES S A$9,416,8800.0%574,2000.8%SPONSORED ADSFAETH THERAPEUTICS INC$9,025,250$9,025,250 â–²New Holding361,0100.8%COM NEWGYRE THERAPEUTICS INC$6,289,601$6,289,601 â–²New Holding954,4160.6%COMTRVITrevi Therapeutics$5,874,750$21,820,500 â–¼-78.8%315,0000.5%HealthcareUNICYCIVE THERAPEUTICS INC$4,690,0000.0%1,000,0000.4%COM NEWCNTXContext Therapeutics$1,689,395$1,218,580 â–¼-41.9%3,050,0000.2%HealthcareGOSSGossamer Bio$1,275,6500.0%7,750,0000.1%HealthcareCNTACentessa Pharmaceuticals$0$29,790,000 â–¼-100.0%00.0%HealthcareKALVKalVista Pharmaceuticals$0$29,188,500 â–¼-100.0%00.0%HealthcareTERNTerns Pharmaceuticals$0$27,941,600 â–¼-100.0%00.0%HealthcareBRIDGEBIO ONCOLOGY THERAPEUT$0$6,435,050 â–¼-100.0%00.0%COM NEWLEXEO THERAPEUTICS INC$0$6,314,000 â–¼-100.0%00.0%COMPERSPECTIVE THERAPEUTICS INC$0$3,300,784 â–¼-100.0%00.0%COM NEWEVOMMUNE INC$0$3,298,421 â–¼-100.0%00.0%COM SHSShowing largest 100 holdings. 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