Octagon Capital Advisors LP

CIK: 0001839435SEC EDGAR →

Portfolio Value

$823.7M

Holdings

27

As of

Q4 2025

New Positions

4

Closed Positions

8

Top 10 Holdings

RankStockSharesValue% of Portfolio
1

ABIVAX SA

756,000$102.0M
12.38%
2

DIANTHUS THERAPEUTICS INC

2,416,667$99.6M
12.09%
3

COGENT BIOSCIENCES INC

2,350,000$83.5M
10.13%
4

TAYSHA GENE THERAPIES INC

8,859,911$48.7M
5.92%
5

GOSSAMER BIO INC

13,915,371$43.1M
5.24%
6

KYMERA THERAPEUTICS INC

535,000$41.6M
5.05%
7

ARRIVENT BIOPHARMA INC

1,971,054$39.7M
4.81%
8

TREVI THERAPEUTICS INC

2,815,000$35.2M
4.28%
9

OCULAR THERAPEUTIX INC

2,623,600$31.9M
3.87%
10

MIND MEDICINE MINDMED INC

2,230,000$29.9M
3.63%

Quarterly Changes

Top Buys

CGONNEW
$24.9M
ALMSNEW
$24.7M
PALINEW
$22.5M
CDTXNEW
$22.1M
KYMR↑ Increased
$21.3M

Top Sells

COGT↓ Decreased
$42.2M
MRUSCLOSED
$29.0M
CDTXCLOSED
$28.7M
APLSCLOSED
$20.4M
TSHA↓ Decreased
$19.1M

New Positions (9)

$24.9M · 600K shares
$24.7M · 2.5M shares
$22.5M · 9.6M shares
$22.1M · 100K shares
$21.1M · 1.6M shares
$19.4M · 574K shares
$17.1M · 1.7M shares
$8.6M · 500K shares
$8.0M · 1.9M shares

Closed Positions (8)

$29.0M · 308K shares
$28.7M · 300K shares
$20.4M · 904K shares
$9.7M · 2.6M shares
$4.6M · 178K shares
$4.4M · 252K shares
$3.2M · 115K shares
$385K · 104K shares

Sector Breakdown

Sector# HoldingsValue%
Healthcare25$771.7M93.7%
Unknown2$51.9M6.3%