Siren, L.L.C.
Q4 2024 13F-HR Holdings
Net value change ($000)
+263,165
(13.2%)
New positions
22
Sold out positions
14
Turnover %
15.0%
Sector allocation + QoQ delta (equities-only)
Holdings aggregated across other managers listed in the original SEC filing. View detailed breakdown
Snapshot: Change Analysis
Compared to Q3 2024
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)
| SRRK | 309,597 | 343.3% |
| SEPN | 50,438 | NEW |
| MDGL | 38,862 | NEW |
| NAMS | 38,577 | 252.5% |
| APGE | 33,854 | NEW |
| APLS | 27,364 | 43.8% |
| BCYC | 25,752 | NEW |
| STOK | 22,060 | NEW |
| SLNO | 15,814 | NEW |
| CRNX | 15,379 | 23.0% |
Top Reduces (Value $000, Stocks/ETFs)
| IGM Biosciences, Inc. | -34,736 | -63.1% |
| RNAM | -33,391 | -50.5% |
| LXRX | -32,303 | -52.9% |
| SLN | -31,999 | -62.2% |
| Longboard Pharmaceuticals, Inc. | -30,105 | -100.0% |
| BCAX | -21,252 | -27.2% |
| KYMR | -21,085 | -15.0% |
| KURA | -14,511 | -55.4% |
| BHVN | -14,168 | -100.0% |
| APLT | -12,488 | -89.9% |
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000):
187
(0.0% 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.
Filter:
Instrument:
| Issuer Name | Ticker | Sector | Industry | Class | History | Value ($000) | % | Shares | Shares Δ | Shares Δ% | Value Δ ($000) | Value Δ% | Principal | Option Type |
|---|