0001214659-24-002827.txt : 20240214 0001214659-24-002827.hdr.sgml : 20240214 20240214160018 ACCESSION NUMBER: 0001214659-24-002827 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20231231 FILED AS OF DATE: 20240214 DATE AS OF CHANGE: 20240214 EFFECTIVENESS DATE: 20240214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Octagon Capital Advisors LP CENTRAL INDEX KEY: 0001839435 ORGANIZATION NAME: IRS NUMBER: 843576791 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-20958 FILM NUMBER: 24637331 BUSINESS ADDRESS: STREET 1: 654 MADISON AVENUE STREET 2: 21ST FLOOR CITY: NEW YORK STATE: NY ZIP: 10065 BUSINESS PHONE: 212-369-2829 MAIL ADDRESS: STREET 1: 654 MADISON AVENUE STREET 2: 21ST FLOOR CITY: NEW YORK STATE: NY ZIP: 10065 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE false false false 0001839435 XXXXXXXX 12-31-2023 12-31-2023 false Octagon Capital Advisors LP

654 Madison Avenue 21st Floor New York NY 10065

13F HOLDINGS REPORT 028-20958 000306424 801-118554 N Justin Hirsch 212-369-2829 /s/ Justin Hirsch New York NY 02-14-2024 0 33 624985827 INFORMATION TABLE 2 infotable.xml ACLARIS THERAPEUTICS INC COM 00461U105 105000 100000 SH SOLE 100000 0 0 AEROVATE THERAPEUTICS INC COM 008064107 9135392 403685 SH SOLE 403685 0 0 ALPINE IMMUNE SCIENCES INC COM 02083G100 23659178 1241300 SH SOLE 1241300 0 0 AN2 THERAPEUTICS INC COM 037326105 13617142 664575 SH SOLE 664575 0 0 ANAPTYSBIO INC COM 032724106 2570400 120000 SH SOLE 120000 0 0 ANNEXON INC COM 03589W102 9307000 2050000 SH SOLE 2050000 0 0 APELLIS PHARMACEUTICALS INC COM 03753U106 168025823 2806980 SH SOLE 2806980 0 0 ARCUS BIOSCIENCES INC COM 03969F109 35678800 1868000 SH SOLE 1868000 0 0 BRIDGEBIO PHARMA INC COM 10806X102 28533516 706800 SH SOLE 706800 0 0 CELLDEX THERAPEUTICS INC NEW COM NEW 15117B202 28060481 707526 SH SOLE 707526 0 0 CENTESSA PHARMACEUTICALS PLC SPONSORED ADS 152309100 16398396 2060100 SH SOLE 2060100 0 0 CYMABAY THERAPEUTICS INC COM 23257D103 63153975 2673750 SH SOLE 2673750 0 0 CYTOKINETICS INC COM NEW 23282W605 9684840 116000 SH SOLE 116000 0 0 DIANTHUS THERAPEUTICS INC COM 252828108 5761600 554000 SH SOLE 554000 0 0 DYNE THERAPEUTICS INC COM 26818M108 10546169 792945 SH SOLE 792945 0 0 GLYCOMIMETICS INC COM 38000Q102 7080000 3000000 SH SOLE 3000000 0 0 GOSSAMER BIO INC COM 38341P102 8383943 9187883 SH SOLE 9187883 0 0 GRACELL BIOTECHNOLOGIES INC SPONSORED ADS 38406L103 5989974 596611 SH SOLE 596611 0 0 IMMUNOVANT INC COM 45258J102 11513666 273289 SH SOLE 273289 0 0 INOZYME PHARMA INC COM 45790W108 1704000 400000 SH SOLE 400000 0 0 INSMED INC COM PAR $.01 457669307 39791160 1284000 SH SOLE 1284000 0 0 JASPER THERAPEUTICS INC COM 471871103 3525342 4468114 SH SOLE 4468114 0 0 MIRUM PHARMACEUTICALS INC COM 604749101 738000 25000 SH SOLE 25000 0 0 NUVATION BIO INC COM CL A 67080N101 1510000 1000000 SH SOLE 1000000 0 0 PHATHOM PHARMACEUTICALS INC COM 71722W107 456500 50000 SH SOLE 50000 0 0 RAPT THERAPEUTICS INC COM 75382E109 7256200 292000 SH SOLE 292000 0 0 RENEO PHARMACEUTICALS INC COM 75974E103 3600000 2250000 SH SOLE 2250000 0 0 ROIVANT SCIENCES LTD SHS G76279101 28007620 2494000 SH SOLE 2494000 0 0 STRUCTURE THERAPEUTICS INC SPONSORED ADS 86366E106 16874640 414000 SH SOLE 414000 0 0 VERONA PHARMA PLC SPONSORED ADS 925050106 47095720 2369000 SH SOLE 2369000 0 0 VERU INC COM 92536C103 2736000 3800000 SH SOLE 3800000 0 0 VIRIDIAN THERAPEUTICS INC COM 92790C104 13503600 620000 SH SOLE 620000 0 0 XILIO THERAPEUTICS INC COM 98422T100 981750 1785000 SH SOLE 1785000 0 0