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Ardsley Advisory Partners LP
Ardsley Advisory Partners LP is a hedge fund based in Norwalk, Connecticut, originally incorporated in New York. Founded in 1987, the firm has an estimated 13 employees and manages several funds with nearly $789 million in assets under management. Ardsley focuses on alternative investment strategies and serves institutional investors, family offices, and high net worth individuals, providing deep sector expertise across healthcare, technology, sustainable opportunities, and advanced equities.
Investment Strategy
Ardsley Advisory Partners LP employs a fundamental, research-driven investment strategy specializing in identifying growth opportunities across public equities, with particular focus on healthcare, sustainable initiatives, technology, and select special situations. The firm leverages sector-specific expertise to generate long-term alpha, seeking companies with strong management, scalable business models, and favorable risk-reward profiles. Ardsley also manages several niche funds targeting healthcare innovation and sustainable investments.
Latest 13F Filing Activity
Ardsley Advisory Partners LP filed their most recent 13F report on Jun 30, 2025 disclosing 107 equity positions and 37 options positions with a total 13F market value of $761M. The fund increased holdings in Arista Networks Inc., Nvidia Corporation, Microsoft Corp. among other positions. Ardsley Advisory Partners LP reduced exposure to Alamos Gold Inc. New, Okta Inc., Freeport-mcmoran Inc. among others.
Top Holdings
Equity Positions (107)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
F FLR | FLUOR CORP NEW | 5.37% | $40.8M | 796,000 | $42.09 | $51.27 | +$14.5M |
N NVDA | NVIDIA CORPORATION | 3.13% | $23.8M | 151,000 | $140.08 | $157.99 | +$17.9M |
A ANET | ARISTA NETWORKS INC | 2.93% | $22.3M | 218,000 | $102.31 | $102.31 | +$22.3M |
O ORCL | ORACLE CORP | 2.87% | $21.9M | 100,000 | $155.57 | $218.63 | +$10.7M |
A AVGO | BROADCOM INC | 2.79% | $21.2M | 77,000 | $168.50 | $275.65 | -$976.2K |
Options Positions (37)
| Ticker | Security | Action | Type | Notional Value | Contracts | Underlying Price | Premium Paid | Change (Contracts) | Change (Value) |
|---|---|---|---|---|---|---|---|---|---|
M MRVL | MARVELL TECHNOLOGY INC | New | Put | $34.7M | 4,480 | $77.40 | $77.40 | +4,480 | +$34.7M |
S SPY | SPDR S&P 500 ETF TR | New | Call | $30.9M | 500 | $617.85 | $617.85 | +500 | +$30.9M |
A AMD | ADVANCED MICRO DEVICES INC | New | Put | $22.0M | 1,550 | $141.90 | $141.90 | +1,550 | +$22.0M |
I ICLN | ISHARES TR | Sold | Call | $5.2M | 4,000 | $13.11 | $11.42 | -5,000 | -$5.0M |
F FSLR | FIRST SOLAR INC | Bought | Call | $5.0M | 300 | $165.54 | $193.51 | +200 | +$3.7M |
Industry Allocation
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