Filed: 2/17/2026ACC: 0001839435-26-000002
📋 What this filing means
OCTAGON CAPITAL ADVISORS LP filed this quarterly 13F‑HR report disclosing 27 equity positions with a total reported market value of $823.68M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
27
Positions
$823.68M
Total AUM (reported)
64.55M
Total Shares
Allocation by class
COM$528.70M64.2%
SPONSORED ADS$131.72M16.0%
COM NEW$105.97M12.9%
COM SHS$57.29M7.0%
Portfolio Concentration
Top 3$285.01M34.6%
4–10$270.11M32.8%
11–25$258.23M31.4%
Rest$10.33M1.3%
Top 3 weight
34.6%
Top 10 weight
67.4%
Voting Authority Distribution
Total shares with voting rights: 64.55M
Sole
Full voting authority
64.55M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole27
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings27
Rows:
ABIVAX SA
SOLEShares756K
TypeSH
Market value$101.95M
12.38%
Sole
756K
Shared
0.00
None
0.00
DIANTHUS THERAPEUTICS INC
SOLEShares2.42M
TypeSH
Market value$99.59M
12.09%
Sole
2.42M
Shared
0.00
None
0.00
COGENT BIOSCIENCES INC
SOLEShares2.35M
TypeSH
Market value$83.47M
10.13%
Sole
2.35M
Shared
0.00
None
0.00
TAYSHA GENE THERAPIES INC
SOLEShares8.86M
TypeSH
Market value$48.73M
5.92%
Sole
8.86M
Shared
0.00
None
0.00
GOSSAMER BIO INC
SOLEShares13.92M
TypeSH
Market value$43.14M
5.24%
Sole
13.92M
Shared
0.00
None
0.00
KYMERA THERAPEUTICS INC
SOLEShares535K
TypeSH
Market value$41.63M
5.05%
Sole
535K
Shared
0.00
None
0.00
ARRIVENT BIOPHARMA INC
SOLEShares1.97M
TypeSH
Market value$39.66M
4.81%
Sole
1.97M
Shared
0.00
None
0.00
TREVI THERAPEUTICS INC
SOLEShares2.81M
TypeSH
Market value$35.24M
4.28%
Sole
2.81M
Shared
0.00
None
0.00
OCULAR THERAPEUTIX INC
SOLEShares2.62M
TypeSH
Market value$31.85M
3.87%
Sole
2.62M
Shared
0.00
None
0.00
MIND MEDICINE MINDMED INC
SOLEShares2.23M
TypeSH
Market value$29.86M
3.63%
Sole
2.23M
Shared
0.00
None
0.00
CG ONCOLOGY INC
SOLEShares600K
TypeSH
Market value$24.91M
3.02%
Sole
600K
Shared
0.00
None
0.00
ALUMIS INC
SOLEShares2.53M
TypeSH
Market value$24.70M
3.00%
Sole
2.53M
Shared
0.00
None
0.00
PALISADE BIO INC
SOLEShares9.57M
TypeSH
Market value$22.48M
2.73%
Sole
9.57M
Shared
0.00
None
0.00
CIDARA THERAPEUTICS INC
SOLEShares100K
TypeSH
Market value$22.09M
2.68%
Sole
100K
Shared
0.00
None
0.00
BIOAGE LABS INC
SOLEShares1.60M
TypeSH
Market value$21.14M
2.57%
Sole
1.60M
Shared
0.00
None
0.00
KALVISTA PHARMACEUTICALS INC
SOLEShares1.27M
TypeSH
Market value$20.56M
2.50%
Sole
1.27M
Shared
0.00
None
0.00
RAPT THERAPEUTICS INC
SOLEShares574K
TypeSH
Market value$19.44M
2.36%
Sole
574K
Shared
0.00
None
0.00
CENTESSA PHARMACEUTICALS PLC
SOLEShares750K
TypeSH
Market value$18.76M
2.28%
Sole
750K
Shared
0.00
None
0.00
PHARVARIS N V
SOLEShares671.47K
TypeSH
Market value$18.63M
2.26%
Sole
671.47K
Shared
0.00
None
0.00
LEXEO THERAPEUTICS INC
SOLEShares1.73M
TypeSH
Market value$17.13M
2.08%
Sole
1.73M
Shared
0.00
None
0.00
BRIDGEBIO ONCOLOGY THERAPEUT
SOLEShares1.04M
TypeSH
Market value$13.06M
1.59%
Sole
1.04M
Shared
0.00
None
0.00
DBV TECHNOLOGIES S A
SOLEShares574.20K
TypeSH
Market value$11.01M
1.34%
Sole
574.20K
Shared
0.00
None
0.00
EVOMMUNE INC
SOLEShares500K
TypeSH
Market value$8.56M
1.04%
Sole
500K
Shared
0.00
None
0.00
PRECISION BIOSCIENCES INC
SOLEShares1.92M
TypeSH
Market value$7.98M
0.97%
Sole
1.92M
Shared
0.00
None
0.00
CORBUS PHARMACEUTICALS HLDGS
SOLEShares955K
TypeSH
Market value$7.77M
0.94%
Sole
955K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ABIVAX SASOLE | SPONSORED ADS | 756K | SH | $101.95M 12.38% | 756K | 0.00 | 0.00 |
DIANTHUS THERAPEUTICS INCSOLE | COM | 2.42M | SH | $99.59M 12.09% | 2.42M | 0.00 | 0.00 |
COGENT BIOSCIENCES INCSOLE | COM | 2.35M | SH | $83.47M 10.13% | 2.35M | 0.00 | 0.00 |
TAYSHA GENE THERAPIES INCSOLE | COM SHS | 8.86M | SH | $48.73M 5.92% | 8.86M | 0.00 | 0.00 |
GOSSAMER BIO INCSOLE | COM | 13.92M | SH | $43.14M 5.24% | 13.92M | 0.00 | 0.00 |
KYMERA THERAPEUTICS INCSOLE | COM | 535K | SH | $41.63M 5.05% | 535K | 0.00 | 0.00 |
ARRIVENT BIOPHARMA INCSOLE | COM | 1.97M | SH | $39.66M 4.81% | 1.97M | 0.00 | 0.00 |
TREVI THERAPEUTICS INCSOLE | COM | 2.81M | SH | $35.24M 4.28% | 2.81M | 0.00 | 0.00 |
OCULAR THERAPEUTIX INCSOLE | COM | 2.62M | SH | $31.85M 3.87% | 2.62M | 0.00 | 0.00 |
MIND MEDICINE MINDMED INCSOLE | COM NEW | 2.23M | SH | $29.86M 3.63% | 2.23M | 0.00 | 0.00 |
CG ONCOLOGY INCSOLE | COM | 600K | SH | $24.91M 3.02% | 600K | 0.00 | 0.00 |
ALUMIS INCSOLE | COM | 2.53M | SH | $24.70M 3.00% | 2.53M | 0.00 | 0.00 |
PALISADE BIO INCSOLE | COM | 9.57M | SH | $22.48M 2.73% | 9.57M | 0.00 | 0.00 |
CIDARA THERAPEUTICS INCSOLE | COM NEW | 100K | SH | $22.09M 2.68% | 100K | 0.00 | 0.00 |
BIOAGE LABS INCSOLE | COM | 1.60M | SH | $21.14M 2.57% | 1.60M | 0.00 | 0.00 |
KALVISTA PHARMACEUTICALS INCSOLE | COM | 1.27M | SH | $20.56M 2.50% | 1.27M | 0.00 | 0.00 |
RAPT THERAPEUTICS INCSOLE | COM NEW | 574K | SH | $19.44M 2.36% | 574K | 0.00 | 0.00 |
CENTESSA PHARMACEUTICALS PLCSOLE | SPONSORED ADS | 750K | SH | $18.76M 2.28% | 750K | 0.00 | 0.00 |
PHARVARIS N VSOLE | COM | 671.47K | SH | $18.63M 2.26% | 671.47K | 0.00 | 0.00 |
LEXEO THERAPEUTICS INCSOLE | COM | 1.73M | SH | $17.13M 2.08% | 1.73M | 0.00 | 0.00 |
BRIDGEBIO ONCOLOGY THERAPEUTSOLE | COM NEW | 1.04M | SH | $13.06M 1.59% | 1.04M | 0.00 | 0.00 |
DBV TECHNOLOGIES S ASOLE | SPONSORED ADS | 574.20K | SH | $11.01M 1.34% | 574.20K | 0.00 | 0.00 |
EVOMMUNE INCSOLE | COM SHS | 500K | SH | $8.56M 1.04% | 500K | 0.00 | 0.00 |
PRECISION BIOSCIENCES INCSOLE | COM NEW | 1.92M | SH | $7.98M 0.97% | 1.92M | 0.00 | 0.00 |
CORBUS PHARMACEUTICALS HLDGSSOLE | COM NEW | 955K | SH | $7.77M 0.94% | 955K | 0.00 | 0.00 |
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