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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
+18.49%
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
$911M
AUM Growth
+$102M
Cap. Flow
+$22.9M
Cap. Flow %
2.52%
Top 10 Hldgs %
28.31%
Holding
195
New
65
Increased
32
Reduced
40
Closed
53

Top Buys

Rank Stock Value
1
LLY icon
Eli Lilly
LLY
+$38.2M
2
TEL icon
TE Connectivity
TEL
+$17M
3
SEZL
Sezzle
SEZL
+$16.7M
4
SMTC icon
Semtech
SMTC
+$11.1M
5
TXN icon
Texas Instruments
TXN
+$10.3M

Top Sells

Rank Stock Value
1
HUT
Hut 8
HUT
+$19.4M
2
ARM icon
Arm
ARM
+$15.7M
3
EOSE icon
Eos Energy Enterprises
EOSE
+$15M
4
GLW icon
Corning
GLW
+$14.5M
5
ORCL icon
Oracle
ORCL
+$13.1M

Sector Composition

Rank Sector Weight
1 Technology 37.1%
2 Healthcare 15.22%
3 Financials 7.28%
4 Industrials 6.27%
5 Consumer Discretionary 4.64%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MRVL icon
126
PUT
Marvell Technology
MRVL
$147B
$850K 0.09%
10,000
-405,000
-98% -$35.5M
SPWR icon
127
SunPower Inc
SPWR
$60.8M
$816K 0.09%
520,000
+310,000
+148% +$533K
VST icon
128
Vistra
VST
$48.2B
$807K 0.09%
+5,000
New +$911K
SEZL
129
CALL
Sezzle
SEZL
$5.13B
$635K 0.07%
+10,000
New +$682K
BIOX icon
130
Bioceres Crop Solutions
BIOX
$20.6M
$622K 0.07%
475,000
+415,000
+692% +$664K
XMTR icon
131
Xometry
XMTR
$4.47B
$595K 0.07%
+10,000
New +$564K
WRBY icon
132
Warby Parker
WRBY
$3.19B
$577K 0.06%
+26,500
New +$577K
NFLX icon
133
Netflix
NFLX
$307B
$563K 0.06%
+6,000
New +$647K
METC icon
134
Ramaco Resources Class A
METC
$629M
$540K 0.06%
30,000
-10,000
-25% -$263K
MOD icon
135
Modine Manufacturing
MOD
$9.46B
$481K 0.05%
+3,600
New +$536K
ET icon
136
Energy Transfer Partners
ET
$69.5B
$412K 0.05%
+25,000
New +$416K
ESOA icon
137
Energy Services of America
ESOA
$262M
$409K 0.04%
50,000
-25,000
-33% -$240K
ALDX icon
138
CALL
Aldeyra Therapeutics
ALDX
$97.1M
$259K 0.03%
+50,000
New +$257K
ARRY icon
139
Array Technologies
ARRY
$740M
$231K 0.03%
+25,000
New +$214K
AAON icon
140
Aaon
AAON
$6.95B
$229K 0.03%
3,000
-29,200
-91% -$2.7M
SHLS icon
141
Shoals Technologies Group
SHLS
$1.33B
$213K 0.02%
25,000
+5,000
+25% +$44.9K
NFE icon
142
New Fortress Energy
NFE
$92.9M
$171K 0.02%
+150,000
New +$221K
AAOI icon
143
CALL
Applied Optoelectronics
AAOI
$6.14B
– –
-165,000
Closed -$4.28M
ADI icon
144
PUT
Analog Devices
ADI
$172B
– –
-15,000
Closed -$3.69M
ADMA icon
145
ADMA Biologics
ADMA
$2.02B
– –
-425,000
Closed -$6.23M
AES icon
146
AES
AES
$10.6B
– –
-125,000
Closed -$1.65M
APH icon
147
PUT
Amphenol
APH
$185B
– –
-45,000
Closed -$5.57M
APP icon
148
Applovin
APP
$134B
– –
-8,000
Closed -$5.75M
ARM icon
149
Arm
ARM
$240B
– –
-108,000
Closed -$15.7M
BFLY icon
150
Butterfly Network
BFLY
$1.86B
– –
-50,000
Closed -$96.5K
4 5
6
7 8

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Ardsley Advisory Partners's Q4 2025 Portfolio in Review

As of Q4 2025, Ardsley Advisory Partners held 195 positions worth $911M, up 13% from $809M the previous quarter. Its ten largest holdings account for 28% of the portfolio.

Ardsley Advisory Partners's Q4 2025 filing shows 65 new, 32 increased, 40 reduced and 53 closed positions. Its largest new stake was Eli Lilly: 40,000 shares worth $43M. The largest sale was Hut 8, an estimated $19.4M.

By sector, the portfolio is most concentrated in Technology at 37% of assets, down from 39% a quarter earlier, followed by Healthcare and Financials.

  • Ardsley Advisory Partners's largest Q4 2025 buy was Eli Lilly: 40,000 shares worth $43M.
  • Ardsley Advisory Partners added most to Semtech in Q4 2025, an estimated $11.1M increase.
  • Ardsley Advisory Partners's biggest Q4 2025 reduction was Hut 8, cutting an estimated $19.4M.
  • Ardsley Advisory Partners fully exited Arm in Q4 2025, selling an estimated $15.7M.
  • Ardsley Advisory Partners's ten largest holdings make up 28% of its $911M portfolio in Q4 2025.
  • Ardsley Advisory Partners opened 65 new positions and closed 53 in Q4 2025.
  • Ardsley Advisory Partners's portfolio value rose 13% quarter-over-quarter to $911M.

Based on Ardsley Advisory Partners's 13F filing for Q4 2025, filed 17 Feb 2026.