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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
Cap. Flow
-$94.4M
Cap. Flow %
-11.67%
Top 10 Hldgs %
29.18%
Holding
208
New
63
Increased
29
Reduced
28
Closed
78

Top Buys

Rank Stock Value
1
FSLR icon
First Solar
FSLR
+$21.9M
2
RUN icon
Sunrun
RUN
+$17.3M
3
EOSE icon
Eos Energy Enterprises
EOSE
+$10.9M
4
LITE icon
Lumentum
LITE
+$10.7M
5
SIMO icon
Silicon Motion
SIMO
+$10.6M

Top Sells

Rank Stock Value
1
FLR icon
Fluor
FLR
+$30.4M
2
ANET icon
Arista Networks
ANET
+$23.7M
3
CLS icon
Celestica
CLS
+$21.1M
4
AFRM icon
Affirm
AFRM
+$13.5M
5
NVDA icon
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
PDD icon
76
CALL
Pinduoduo
PDD
$126B
$3.3M 0.41%
+25,000
New +$2.96M
CFLT
77
CALL
DELISTED
Confluent
CFLT
$3.17M 0.39%
+160,000
New +$3.35M
ORN icon
78
Orion Group Holdings
ORN
$368M
$3.12M 0.39%
375,000
+50,000
+15% +$394K
AAON icon
79
Aaon
AAON
$6.95B
$3.01M 0.37%
+32,200
New +$2.64M
SMTC icon
80
CALL
Semtech
SMTC
$9.65B
$2.86M 0.35%
+40,000
New +$2.17M
ARM icon
81
CALL
Arm
ARM
$240B
$2.83M 0.35%
20,000
-5,000
-20% -$728K
DQ
82
Daqo New Energy
DQ
$810M
$2.81M 0.35%
+100,000
New +$2.34M
PD icon
83
CALL
PagerDuty
PD
$830M
$2.81M 0.35%
+170,000
New +$2.7M
ALAB icon
84
PUT
Astera Labs
ALAB
$42.8B
$2.74M 0.34%
+14,000
New +$2.3M
CFLT
85
DELISTED
Confluent
CFLT
$2.67M 0.33%
+135,000
New +$2.82M
ETSY icon
86
Etsy
ETSY
$8.12B
$2.52M 0.31%
+38,000
New +$2.27M
INFY icon
87
PUT
Infosys
INFY
$51B
$2.28M 0.28%
+140,000
New +$2.41M
NXE icon
88
NexGen Energy
NXE
$5.91B
$2.24M 0.28%
250,000
+200,000
+400% +$1.47M
RUN icon
89
CALL
Sunrun
RUN
$2.26B
$2.16M 0.27%
125,000
-72,500
-37% -$971K
TRIP icon
90
CALL
TripAdvisor
TRIP
$1.7B
$2.11M 0.26%
130,000
+70,000
+117% +$1.22M
SMR icon
91
PUT
NuScale Power
SMR
$2.63B
$1.8M 0.22%
+50,000
New +$1.99M
HASI icon
92
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$4.81B
$1.69M 0.21%
55,000
– –
AMRC icon
93
Ameresco
AMRC
$980M
$1.68M 0.21%
+50,000
New +$1.14M
P
94
CALL
Everpure Inc
P
$23B
$1.68M 0.21%
+20,000
New +$1.33M
AES icon
95
AES
AES
$10.6B
$1.65M 0.2%
125,000
+25,000
+25% +$325K
PROF
96
Profound Medical
PROF
$263M
$1.61M 0.2%
330,000
– –
NOK icon
97
Nokia
NOK
$46.9B
$1.61M 0.2%
334,906
-45,094
-12% -$204K
TAC icon
98
TransAlta
TAC
$3.93B
$1.57M 0.19%
115,000
+10,000
+10% +$123K
AFRM icon
99
Affirm
AFRM
$23.5B
$1.46M 0.18%
20,000
-177,000
-90% -$13.5M
CRDO icon
100
PUT
Credo Technology Group
CRDO
$33.1B
$1.46M 0.18%
10,000
– –
2 3
4
5 6

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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.