Octagon Capital Advisors LP

CIK 0001839435 · Q2 2026

13F Equity AUM

$1.1B

+23.1% QoQ

Positions

-2 QoQ

AUM Rank

#2,263

Top 26%

Skill Alpha (FF)

+17.1%/yr^ns

No Clear Edge

Rank #187 · Top 2%

vs S&P -7.0%/yr (unadj.)

Quarters Tracked

~5 years

Portfolio Concentration

Top 5: 55.8%Top 10: 78.5%Top 20: 96.6%

DNTH16.1%

DFTX12.5%

ABVX11.9%

COGT8.2%

ALMS7.2%

AVBP6.2%

TSHA5.9%

BIOA3.9%

MIRM3.6%

KYMR3.2%

Others (17)21.5%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Healthcare97.2%

Unclassified2.8%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 27Median: 1.93%Avg: 3.70%

0–0.5%

3(0.7%)

0.5–1%

6(4.7%)

1–3%

8(16.1%)

3–5%

3(10.6%)

5%+

7(67.9%)

Count of positions per weight bucket — (%) = combined portfolio weight

Loading summary cards...

Portfolio Overlap

Shared: 0Unique: 27vs 20 funds

0%Low

Fund positions

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

Loading overlap analysis...

Position Changes This Quarter

New5Increased4Decreased6Exited7

New Positions

ERAS2.1%

+1.3M

SMMT1.6%

+1.3M

ANL1.0%

+935K

SNSE0.8%

+361K

L9S0.6%

+954K

Increased

TSHA5.9%

+833K(+9%)

DFTX12.5%

+510K(+21%)

ABVX11.9%

+316K(+47%)

PHVS1.4%

+292K(+177%)

Decreased

CNTX0.1%

-2,200,000(-42%)

TRVI0.5%

-1,170,000(-79%)

OCUL1.8%

-1,091,600(-34%)

DTIL0.9%

-886,732(-40%)

KYMR3.2%

-115,000(-27%)

DNTH16.1%

-105,000(-5%)

Exited

-750,000

-1,450,000

-530,000

-719,000

-1,100,000

-791,555

-143,472

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

Loading position changes...

Holdings

Loading holdings...