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SEC Form 13F

Octagon Capital Advisors LP 13F Holdings

Inspect Octagon Capital Advisors LP's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-08-15T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-08-15
Reported value
$1,112,538,962
Positions
27
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Disclosed positions

Largest disclosed position values

Scale: 0 to 179,530,000 USD · zero baseline

Largest disclosed position values

  • DNTH · COM+179,525,699 USD
  • DFTX · COM SHS+138,768,000 USD
  • ABVX · SPONSORED ADS+132,327,180 USD
  • COGT · COM+90,945,000 USD
  • ALMS · COM+79,655,898 USD
  • AVBP · COM+68,474,416 USD
  • TSHA · COM SHS+66,010,992 USD
  • BIOA · COM+42,843,480 USD
  • MIRM · COM+39,675,023 USD
  • KYMR · COM+35,547,700 USD

Reported underlying-position values for 2026-06-30, publicly available 2026-08-15. Put/call values are not option premiums; this subset is not a complete portfolio allocation. Exact issuer, class and unit remain in the table. Showing the first 10 of 27 recorded values; the complete table remains available below.

Inspect all 27 displayed rows: Disclosed positions

Scroll sideways to compare all columns. Select a heading to sort.

DIANTHUS THERAPEUTICS INCDNTHCOM$179,525,6991,841,667SHNone
DEFINIUM THERAPEUTICS INCDFTXCOM SHS$138,768,0002,950,000SHNone
ABIVAX SAABVXSPONSORED ADS$132,327,180993,000SHNone
COGENT BIOSCIENCES INCCOGTCOM$90,945,0002,350,000SHNone
ALUMIS INCALMSCOM$79,655,8982,830,700SHNone
ARRIVENT BIOPHARMA INCAVBPCOM$68,474,4161,971,054SHNone
TAYSHA GENE THERAPIES INCTSHACOM SHS$66,010,9929,693,244SHNone
BIOAGE LABS INCBIOACOM$42,843,4801,748,000SHNone
MIRUM PHARMACEUTICALS INCMIRMCOM$39,675,023338,900SHNone
KYMERA THERAPEUTICS INCKYMRCOM$35,547,700310,000SHNone
AKTIS ONCOLOGY INCAKTSCOM$30,968,099960,847SHNone
XENON PHARMACEUTICALS INCXENECOM$29,576,400490,000SHNone
ERASCA INCUnresolvedCALL$22,991,6001,255,000SHCall
PALISADE BIO INCPALICOM$21,477,50310,276,317SHNone
OCULAR THERAPEUTIX INCOCULCOM$20,376,5002,075,000SHNone
DISC MEDICINE INCIRONCOM$19,747,800270,000SHNone
SUMMIT THERAPEUTICS INCSMMTCOM$18,212,5001,250,000SHNone
PHARVARIS N VPHVSCOM$15,793,412456,721SHNone
ADLAI NORTYE LTDANLSPONSORED ADS$10,749,234934,716SHNone
PRECISION BIOSCIENCES INCDTILCOM NEW$10,611,0001,350,000SHNone
DBV TECHNOLOGIES S ADBVTSPONSORED ADS$9,416,880574,200SHNone
FAETH THERAPEUTICS INCFTHCOM NEW$9,025,250361,010SHNone
GYRE THERAPEUTICS INCGYRECOM$6,289,601954,416SHNone
TREVI THERAPEUTICS INCTRVICOM$5,874,750315,000SHNone
UNICYCIVE THERAPEUTICS INCUNCYCOM NEW$4,690,0001,000,000SHNone
CONTEXT THERAPEUTICS INCCNTXCOM$1,689,3953,050,000SHNone
GOSSAMER BIO INCGOSSCOM$1,275,6507,750,000SHNone

Largest 50 positions by reported value; the filing may contain more positions.

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DIANTHUS THERAPEUTICS INCDNTHCOM$179,525,6991,841,667SHNone

First displayed source row from Disclosed positions. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-06-30 and its public availability date is 2026-08-15. Subtracting those calendar dates gives 46 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

Read the amount together with its Unit and Option columns. A reported put or call position is not an option premium paid, and a quarterly holding is not a purchase made on its public filing date. Check every accession in the effective amendment lineage below: a retained holding can originate in an earlier filing rather than the latest linked amendment.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 1 positions lack a resolved ticker and 1 positions are put or call entries.

The displayed holdings combine the effective filing versions listed here. The latest receipt linked below identifies the current projection version; it is not proof that every retained holding originated in that latest amendment. Inspect all effective accessions when verifying a position's source.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Show the table · 1 row, 2 columns
Effective SEC accessionRole in this view
0001839435-26-000004Latest effective version

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.