Octagon Capital Advisors Lp Portfolio Stock Holdings

Octagon Capital Advisors Lp disclosed 29 stock positions valued at approximately $903.6 million in its latest SEC 13F filing. The largest holdings include DIANTHUS THERAPEUTICS INC, COGENT BIOSCIENCES INC, and ABIVAX SA. The filing reflects positions held as of March 31, 2026 and was filed on May 15, 2026.

Report Period
March 31, 2026
No. of Stocks
29
Portfolio Value
$903.6M
Holdings by Sector
Octagon Capital Advisors Lp Portfolio Holdings in Q1 2026

21 holdings in the latest reporting period.

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CompanySymbolSectorPortfolio %SharesChange (Shares)Change %Value
DIANTHUS THERAPEUTICS INCDNTHHealthcare18.08%1,946,667-470,000-19.45%$163,364,295
COGENT BIOSCIENCES INCCOGTHealthcare10.01%2,350,000--$90,451,500
ABIVAX SAABVXHealthcare8.34%677,000-79,000-10.45%$75,383,950
ALUMIS INCALMSHealthcare6.90%2,830,700+300,000+11.85%$62,360,321
ARRIVENT BIOPHARMA INCAVBPHealthcare5.03%1,971,054--$45,472,216
TAYSHA GENE THERAPIES INCTSHAHealthcare4.38%8,859,911--$39,603,802
KYMERA THERAPEUTICS INCKYMRHealthcare3.92%425,000-110,000-20.56%$35,398,250
MIRUM PHARMACEUTICALS INCMIRMHealthcare3.46%338,900+338,900+100.00%$31,307,582
CENTESSA PHARMACEUTICALS PLCCNTAHealthcare3.30%750,000--$29,790,000
KALVISTA PHARMACEUTICALS INCKALVHealthcare3.23%1,450,000+176,667+13.87%$29,188,500
XENON PHARMACEUTICALS INCXENEHealthcare3.15%490,000+490,000+100.00%$28,493,500
TERNS PHARMACEUTICALS INCTERNHealthcare3.09%530,000+530,000+100.00%$27,941,600
OCULAR THERAPEUTIX INCOCULHealthcare2.97%3,166,600+543,000+20.70%$26,821,102
TREVI THERAPEUTICS INCTRVIHealthcare1.96%1,485,000-1,330,000-47.25%$17,716,050
DISC MEDICINE INCIRONHealthcare1.91%270,000+270,000+100.00%$17,263,800
CONTEXT THERAPEUTICS INCCNTXHealthcare1.52%5,250,000+5,250,000+100.00%$13,755,000
PRECISION BIOSCIENCES INCDTILHealthcare1.36%2,236,732+318,737+16.62%$12,302,026
LEXEO THERAPEUTICS INCLXEOHealthcare0.70%1,100,000-625,000-36.23%$6,314,000
PHARVARIS N VPHVSOther0.52%165,000-506,465-75.43%$4,661,250
PERSPECTIVE THERAPEUTICS INCCATXHealthcare0.37%791,555+791,555+100.00%$3,300,784
GOSSAMER BIO INCGOSSHealthcare0.28%7,750,000-6,165,371-44.31%$2,545,875