ARDSLEY ADVISORY PARTNERS LP
Latest 13F filing data - Q3 2025
Holdings (Top positions)
| Stock | Ticker | ||
|---|---|---|---|
 | HASI | 55K | $1.69M |
 | CLNE | 50K | $129.00K |
 | TIC | 50K | $665.50K |
 | AMRC | 50K | $1.68M |
 | SVII | 50K | $625.50K |
 | BFLY | 50K | $96.50K |
 | AEIS | 45K | $7.57M |
 | ONTO | 41K | $5.23M |
 | METC | 40K | $1.33M |
 | BWXT | 40K | $7.37M |
 | ETSY | 38K | $2.52M |
 | MSFT | 37K | $19.11M |
 | THC | 35K | $7.11M |
 | ANET | 34K | $4.95M |
 | COHR | 34K | $3.61M |
 | AAON | 32K | $3.01M |
 | PANW | 31K | $6.37M |
 | WDC | 30K | $3.60M |
 | MTZ | 20K | $4.26M |
 | PTON | 20K | $180.00K |
HA Sustainable Infrastructure Capital, Inc.
HASI
Shares Held
55K
Value
$1.69M
Clean Energy Fuels Corp.
CLNE
Shares Held
50K
Value
$129.00K
TIC Solutions, Inc.
TIC
Shares Held
50K
Value
$665.50K
Ameresco, Inc.
AMRC
Shares Held
50K
Value
$1.68M
Spring Valley Acquisition Corp. II
SVII
Shares Held
50K
Value
$625.50K
Butterfly Network, Inc.
BFLY
Shares Held
50K
Value
$96.50K
Advanced Energy Industries, Inc.
AEIS
Shares Held
45K
Value
$7.57M
Onto Innovation Inc.
ONTO
Shares Held
41K
Value
$5.23M
Ramaco Resources, Inc.
METC
Shares Held
40K
Value
$1.33M
BWX Technologies, Inc.
BWXT
Shares Held
40K
Value
$7.37M
Etsy, Inc.
ETSY
Shares Held
38K
Value
$2.52M
Microsoft Corporation
MSFT
Shares Held
37K
Value
$19.11M
Tenet Healthcare Corporation
THC
Shares Held
35K
Value
$7.11M
Arista Networks, Inc.
ANET
Shares Held
34K
Value
$4.95M
Coherent, Inc.
COHR
Shares Held
34K
Value
$3.61M
AAON, Inc.
AAON
Shares Held
32K
Value
$3.01M
Palo Alto Networks, Inc.
PANW
Shares Held
31K
Value
$6.37M
Western Digital Corporation
WDC
Shares Held
30K
Value
$3.60M
MasTec, Inc.
MTZ
Shares Held
20K
Value
$4.26M
Peloton Interactive, Inc.
PTON
Shares Held
20K
Value
$180.00K