ARDSLEY ADVISORY PARTNERS LP
•CIK: 900529•Filing: Q4 2025
ARDSLEY ADVISORY PARTNERS LP manages $747M across a diversified portfolio of 124 positions. The fund exhibits significant concentration in key growth and healthcare names, notably holding LLY at $43.0M and LITE at $29.5M. Further top allocations include RUN ($27.2M), NVDA ($23.3M), and ARGX ($20.2M). This structure suggests a tactical, conviction-driven approach targeting high-potential sectors.
Total AUM
$641.5M
+ $105.6M in options
QoQ Performance
+18.4%
Positions
100
+ 24 options
Top 10 Concentration
31.1%
Latest Filing
Q4 2025
Top Holdings Allocation
LLY
LLY5.8%
LITE3.9%
RUN3.6%
NVDA3.1%
ARGX2.7%
SLV2.5%
TEVA2.4%
GOOG2.4%
📈 Biggest Buys
📉 Biggest Sells
Sector Breakdown
Other77.2%
Technology12.9%
Healthcare6.7%
Consumer2.7%
Communication0.3%
Utilities0.3%
🚪 Exited Positionssold since Q3 2025
+34 more exited positions
Changes from Q3 2025
NEW52 new positions
↑29 increased
↓38 decreased
Historical Filings
Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023