Octagon Capital Advisors LP
CIK 1839435 · Holdings on Mar 31, 2026 · First reported May 15, 2026
Top ten holdings
Q1 2026- DNTH18.08%
- COGT10.01%
- ABVX8.34%
- ALMS6.90%
- DFTX5.10%
- AVBP5.03%
- TSHA4.38%
- KYMR3.92%
- MIRM3.46%
- BIOA3.38%
Share classes counted separately68.60%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- DNTHWeight increased · +5.61 pp12.47% → 18.08%Shares -470.00K (-19.45%)
- GOSSWeight decreased · -5.12 pp5.40% → 0.28%Shares -6.17M (-44.31%)
- ABVXWeight decreased · -4.42 pp12.76% → 8.34%Shares -79.00K (-10.45%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 29
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | DNTHDIANTHUS THERAPEUTICS INC View history and evidence | $163.36M | 18.08% | 1.95M shares | 12.47% → 18.08%+5.61 pp -470.00K (-19.45%) | Reduced | ↗▾ |
| 02 | COGTCOGENT BIOSCIENCES INC View history and evidence | $90.45M | 10.01% | 2.35M shares | 10.45% → 10.01%-0.44 pp 0 (0.00%) | Unchanged | ↗▾ |
| 03 | ABVXABIVAX SA-ADRSPONSORED ADS View history and evidence | $75.38M | 8.34% | 677.00K shares | 12.76% → 8.34%-4.42 pp -79.00K (-10.45%) | Reduced | ↗▾ |
| 04 | ALMSALUMIS INC View history and evidence | $62.36M | 6.90% | 2.83M shares | 3.09% → 6.90%+3.81 pp +300.00K (+11.85%) | Added | ↗▾ |
| 05 | DFTXDEFINIUM THERAPEUTICS INCCOM SHS View history and evidence | $46.12M | 5.10% | 2.44M shares | Prior unavailable +2.44M | New | ↗▾ |
| 06 | AVBPARRIVENT BIOPHARMA INC View history and evidence | $45.47M | 5.03% | 1.97M shares | 4.96% → 5.03%+0.07 pp 0 (0.00%) | Unchanged | ↗▾ |
| 07 | TSHATAYSHA GENE THERAPIES INCCOM SHS View history and evidence | $39.60M | 4.38% | 8.86M shares | 6.10% → 4.38%-1.72 pp 0 (0.00%) | Unchanged | ↗▾ |
| 08 | KYMRKYMERA THERAPEUTICS INC View history and evidence | $35.40M | 3.92% | 425.00K shares | 5.21% → 3.92%-1.29 pp -110.00K (-20.56%) | Reduced | ↗▾ |
| 09 | MIRMMIRUM PHARMACEUTICALS INC View history and evidence | $31.31M | 3.46% | 338.90K shares | Prior unavailable +338.90K | New | ↗▾ |
| 10 | BIOABIOAGE LABS INC View history and evidence | $30.57M | 3.38% | 1.75M shares | 2.65% → 3.38%+0.73 pp +150.00K (+9.39%) | Added | ↗▾ |
Options overlay 0
No options reported this quarter.
Exited positions 6
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| 60255C885 MIND MEDICINE MINDMED INC | Non-derivative | -2,230,000 | -$29.86M | SEC filing ↗ | SEC filing ↗ |
| CGON CG ONCOLOGY INC | Call | -600,000 | -$24.91M | SEC filing ↗ | SEC filing ↗ |
| CDTX CIDARA THERAPEUTICS INC | Non-derivative | -100,000 | -$22.09M | SEC filing ↗ | SEC filing ↗ |
3 / 6 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1839435 · Period 2026-03-31
Data loaded 2026-09-23 · First reported 2026-05-15
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 903605540
}Take these holdings further.
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