Octagon Capital Advisors LP

Q3 2025 13F-HR Holdings

Location
New York, NY
Holdings as of
9/30/2025
Date filed
11/14/2025
Form type
13F-HR
Num holdings
27
Total value ($000)
$659,758
Net value change ($000)
+204,133 (44.8%)
New positions
4
Sold out positions
8
Turnover %
20.1%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/14/2025 Next filing: 2/17/2026 SEC filing

Snapshot: Change Analysis

Compared to Q2 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
ABVX 102,800 1060.6%
DNTH 51,471 118.0%
GOSS 22,271 98.7%
COGT 21,434 108.0%
BBOT 12,079 NEW
DFTX 11,289 81.7%
CDTX 9,576 NEW
KYMR 8,768 75.5%
Merus N.V. 8,537 41.7%
OCUL 8,171 36.3%
Top Reduces (Value $000, Stocks/ETFs)
VRNA -31,873 -100.0%
SPRY -23,558 -100.0%
ATYR -19,367 -100.0%
TRML -14,471 -100.0%
MLTX -6,986 -100.0%
AVBP -6,000 -14.2%
NUVB -5,255 -35.0%
HELIX ACQUISITION CORP II -2,663 -100.0%
KLRS -961 -100.0%
ERAS -889 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 19,152 (2.9% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type