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Ardsley Advisory Partners Portfolio holdings
AUM
$960M
1-Year Est. Return
207.76%
This Fund
S&P 500
This Quarter
Est. Return
+38.82%
1 Year Est. Return
+207.76%
3 Year Est. Return
+554.53%
5 Year Est. Return
+728.66%
10 Year Est. Return
+4,084.52%
AUM
$809M
AUM Growth
+$48M
(+6.3%)
Cap. Flow
-$94.4M
Cap. Flow
% of AUM
-11.67%
Top 10 Holdings %
Top 10 Hldgs %
29.18%
Holding
208
New
63
Increased
29
Reduced
28
Closed
78
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
First Solar
FSLR
|
+$21.9M |
| 2 |
Sunrun
RUN
|
+$17.3M |
| 3 |
Eos Energy Enterprises
EOSE
|
+$10.9M |
| 4 |
Lumentum
LITE
|
+$10.7M |
| 5 |
Silicon Motion
SIMO
|
+$10.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Fluor
FLR
|
+$30.4M |
| 2 |
Arista Networks
ANET
|
+$23.7M |
| 3 |
Celestica
CLS
|
+$21.1M |
| 4 |
Affirm
AFRM
|
+$13.5M |
| 5 |
NVIDIA
NVDA
|
+$12.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 39.32% |
| 2 | Healthcare | 9.96% |
| 3 | Financials | 8.45% |
| 4 | Industrials | 8.25% |
| 5 | Consumer Discretionary | 3.78% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
101
Salesforce
CRM
$154B
| $1.42M | 0.18% |
+6,000
| New | +$1.51M |
|
102
Ramaco Resources Class A
METC
$629M
| $1.33M | 0.16% |
+40,000
| New | +$930K |
|
103
Magnite
MGNI
$2.83B
| $1.31M | 0.16% |
60,000
-310,000
| -84% | -$7.32M |
|
104
CALL
Clean Energy Fuels
CLNE
$416M
| $1.29M | 0.16% |
500,000
| – | – |
|
105
TETRA Technologies
TTI
$1.08B
| $1.01M | 0.12% |
175,000
| – | – |
|
|
DOCU
106
DocuSign
DOCU
$11.1B
| $937K | 0.12% |
+13,000
| New | +$1M |
|
|
AIOT
107
PowerFleet Inc
AIOT
$537M
| $917K | 0.11% |
175,000
| – | – |
|
108
CALL
Peloton Interactive
PTON
$2.85B
| $900K | 0.11% |
+100,000
| New | +$744K |
|
109
Cameco
CCJ
$36.8B
| $839K | 0.1% |
10,000
-28,000
| -74% | -$2.17M |
|
110
Roku
ROKU
$21.6B
| $801K | 0.1% |
+8,000
| New | +$738K |
|
111
Energy Services of America
ESOA
$262M
| $776K | 0.1% |
+75,000
| New | +$757K |
|
112
Evolv Technologies
EVLV
$998M
| $755K | 0.09% |
100,000
-100,000
| -50% | -$730K |
|
113
CALL
Nike
NKE
$64.1B
| $697K | 0.09% |
+10,000
| New | +$745K |
|
114
PUT
Zeta Global
ZETA
$5.5B
| $695K | 0.09% |
35,000
-2,000
| -5% | -$35.9K |
|
|
TIC
115
TIC Solutions Inc
TIC
$1.59B
| $666K | 0.08% |
+50,000
| New | +$570K |
|
|
SVII
116
DELISTED
Spring Valley Acquisition Corp II
SVII
| $626K | 0.08% |
+50,000
| New | +$604K |
|
117
Bloom Energy
BE
$48.2B
| $423K | 0.05% |
5,000
-115,000
| -96% | -$5.34M |
|
118
SunPower Inc
SPWR
$60.8M
| $370K | 0.05% |
+210,000
| New | +$347K |
|
119
Idaho Strategic Resources
IDR
$438M
| $338K | 0.04% |
+10,000
| New | +$236K |
|
120
NET Power
NPWR
$120M
| $325K | 0.04% |
+107,817
| New | +$288K |
|
|
LGN
121
Legence Corp
LGN
$4.08B
| $308K | 0.04% |
+10,000
| New | +$315K |
|
122
Energy Vault
NRGV
$455M
| $297K | 0.04% |
+100,000
| New | +$164K |
|
123
TripAdvisor
TRIP
$1.7B
| $293K | 0.04% |
18,000
-171,000
| -90% | -$2.98M |
|
124
PUT
ON Semiconductor
ON
$30.7B
| $247K | 0.03% |
5,000
-2,000
| -29% | -$105K |
|
|
125
Nike
NKE
$64.1B
| $209K | 0.03% |
+3,000
| New | +$224K |
|
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Ardsley Advisory Partners's Q3 2025 Portfolio in Review
As of Q3 2025, Ardsley Advisory Partners held 208 positions worth $809M, up 6.3% from $761M the previous quarter. Its ten largest holdings account for 29% of the portfolio.
Ardsley Advisory Partners withdrew a net $94.4M in Q3 2025, closing 78 positions and reducing 28 holdings. Its most notable exit was Celestica, an estimated $21.1M position sold in full.
By sector, the portfolio is most concentrated in Technology at 39% of assets, up from 37% a quarter earlier, followed by Healthcare and Financials.
Against the trend, Ardsley Advisory Partners opened a new position in Eos Energy Enterprises worth $18.1M.
- Ardsley Advisory Partners's largest Q3 2025 buy was Eos Energy Enterprises: 1,600,000 shares worth $18.1M.
- Ardsley Advisory Partners added most to First Solar in Q3 2025, an estimated $21.9M increase.
- Ardsley Advisory Partners's biggest Q3 2025 reduction was Fluor, cutting an estimated $30.4M.
- Ardsley Advisory Partners fully exited Celestica in Q3 2025, selling an estimated $21.1M.
- Ardsley Advisory Partners's ten largest holdings make up 29% of its $809M portfolio in Q3 2025.
- Ardsley Advisory Partners opened 63 new positions and closed 78 in Q3 2025.
- Ardsley Advisory Partners's portfolio value rose 6.3% quarter-over-quarter to $809M.
Based on Ardsley Advisory Partners's 13F filing for Q3 2025, filed 14 Nov 2025.