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Octagon Capital Advisors LP

Q3 2025 · 13F-HR

Octagon Capital Advisors LPholdings as filed

Filed 2025-11-14 · accession 0001839435-25-000010

$659.8M
Reported value
27
Positions
2025-09-30
Period end
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The Brief · Octagon Capital Advisors LP · Q3 2025

AI · grounded in 13F

Octagon Capital Advisors LP established a new position in ABIVAX SA ABVX valued at $112.5M. The fund also initiated new stakes in DIANTHUS THERAPEUTICS INC DNTH for $95.1M and GOSSAMER BIO INC GOSS for $44.8M. Other new additions include COGENT BIOSCIENCES INC COGT and ARRIVENT BIOPHARMA INC AVBP.

Holdings as filed

CUSIPTickerIssuerValue% port.SharesClassVoting
00370M103ABVXABIVAX SA$112.5M17.1%1,325,000CommonSOLE
252828108DNTHDIANTHUS THERAPEUTICS INC$95.1M14.4%2,416,667CommonSOLE
38341P102GOSSGOSSAMER BIO INC$44.8M6.80%17,050,000CommonSOLE
19240Q201COGTCOGENT BIOSCIENCES INC$41.3M6.26%2,874,111CommonSOLE
04272N102AVBPARRIVENT BIOPHARMA INC$36.4M5.51%1,971,054CommonSOLE
67576A100OCULOCULAR THERAPEUTIX INC$30.7M4.65%2,624,000CommonSOLE
877619106TSHATAYSHA GENE THERAPIES INC$29.7M4.49%9,067,500CommonSOLE
N5749R1002GHMERUS N V$29.0M4.40%308,000CommonSOLE
89532M101TRVITREVI THERAPEUTICS INC$25.8M3.90%2,815,000CommonSOLE
60255C885BRD1EURMIND MEDICINE MINDMED INC$25.1M3.81%2,130,000CommonSOLE
03753U106APLSUSDAPELLIS PHARMACEUTICALS INC$20.4M3.10%903,500CommonSOLE
501575104KYMRKYMERA THERAPEUTICS INC$20.4M3.09%360,000CommonSOLE
152309100CNTACENTESSA PHARMACEUTICALS PLC$20.1M3.05%830,000CommonSOLE
171757206CDTXCIDARA THERAPEUTICS INC$19.2M2.90%200,000CALLSOLE
N69605108PHVSPHARVARIS N V$18.0M2.73%722,595CommonSOLE
483497103KALVKALVISTA PHARMACEUTICALS INC$15.5M2.35%1,273,333CommonSOLE
21833P301CRBPCORBUS PHARMACEUTICALS HLDGS$14.1M2.14%1,115,000CommonSOLE
107924102BBOTBRIDGEBIO ONCOLOGY THERAPEUT$12.1M1.83%1,043,110CommonSOLE
23306J309DBVTDBV TECHNOLOGIES S A$10.2M1.54%1,018,021CommonSOLE
67080N101NUVBNUVATION BIO INC$9.7M1.48%2,633,334CommonSOLE
171757206CDTXCIDARA THERAPEUTICS INC$9.6M1.45%100,000CommonSOLE
578784100MAZEMAZE THERAPEUTICS INC$4.6M0.70%177,667CommonSOLE
64135M105NGNENEUROGENE INC$4.4M0.66%252,000CommonSOLE
90466Y202UNCYUNICYCIVE THERAPEUTICS INC$4.4M0.66%1,000,000CommonSOLE
713317105PEPGPEPGEN INC$3.2M0.49%700,000CommonSOLE
86366E106GPCRSTRUCTURE THERAPEUTICS INC$3.2M0.49%115,000CommonSOLE
67080N119NUVB/WSNUVATION BIO INC$385,2140.06%104,112CommonSOLE

Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.