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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
+11.5%
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
$784M
AUM Growth
-$127M
(-14%)
Cap. Flow
-$154M
Cap. Flow
% of AUM
-19.68%
Top 10 Holdings %
Top 10 Hldgs %
29.92%
Holding
214
New
72
Increased
33
Reduced
34
Closed
63
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
United Therapeutics
UTHR
|
+$24.9M |
| 2 |
Shoals Technologies Group
SHLS
|
+$18.3M |
| 3 |
Meta Platforms (Facebook)
META
|
+$16.7M |
| 4 |
Modine Manufacturing
MOD
|
+$16.5M |
| 5 |
Boston Scientific
BSX
|
+$12M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Lumentum
LITE
|
+$40.5M |
| 2 |
Eli Lilly
LLY
|
+$35.5M |
| 3 |
First Solar
FSLR
|
+$30.7M |
| 4 |
argenx
ARGX
|
+$20.2M |
| 5 |
Advanced Energy
AEIS
|
+$19.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 33.08% |
| 2 | Healthcare | 13.31% |
| 3 | Consumer Discretionary | 7.84% |
| 4 | Financials | 6.74% |
| 5 | Communication Services | 6.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
126
Criteo S.A. Ordinary Shares
CRTO
$1.14B
| $905K | 0.12% |
+50,500
| New | +$950K |
|
127
American Superconductor
AMSC
$1.29B
| $846K | 0.11% |
+25,000
| New | +$789K |
|
128
CALL
Intel
INTC
$413B
| $794K | 0.1% |
18,000
-42,000
| -70% | -$1.93M |
|
129
CALL
Magnite
MGNI
$2.83B
| $772K | 0.1% |
+65,000
| New | +$871K |
|
130
PUT
EXL Service
EXLS
$5.46B
| $761K | 0.1% |
+25,000
| New | +$862K |
|
131
CALL
LiveRamp
RAMP
$2.29B
| $743K | 0.09% |
+28,000
| New | +$734K |
|
132
MP Materials
MP
$6.78B
| $724K | 0.09% |
+15,000
| New | +$897K |
|
133
Array Technologies
ARRY
$740M
| $723K | 0.09% |
100,000
+75,000
| +300% | +$694K |
|
134
CALL
Lattice Semiconductor
LSCC
$16B
| $649K | 0.08% |
+7,000
| New | +$628K |
|
|
HIMX
135
CALL
Himax Technologies
HIMX
$2.03B
| $630K | 0.08% |
+80,000
| New | +$657K |
|
136
CALL
Twilio
TWLO
$28.6B
| $629K | 0.08% |
+5,000
| New | +$615K |
|
|
HIMX
137
Himax Technologies
HIMX
$2.03B
| $622K | 0.08% |
+79,000
| New | +$648K |
|
138
SentinelOne
S
$6.35B
| $592K | 0.08% |
+46,000
| New | +$639K |
|
139
Walt Disney
DIS
$171B
| $578K | 0.07% |
+6,000
| New | +$634K |
|
140
CALL
Aldeyra Therapeutics
ALDX
$97.1M
| $507K | 0.06% |
300,000
+250,000
| +500% | +$1.1M |
|
141
TaskUs
TASK
$594M
| $436K | 0.06% |
+65,000
| New | +$688K |
|
142
CALL
Okta
OKTA
$23.8B
| $394K | 0.05% |
+5,000
| New | +$415K |
|
143
LSB Industries
LXU
$824M
| $373K | 0.05% |
+25,000
| New | +$285K |
|
|
144
LiveRamp
RAMP
$2.29B
| $371K | 0.05% |
+14,000
| New | +$367K |
|
145
Ivanhoe Electric
IE
$1.38B
| $296K | 0.04% |
+25,000
| New | +$392K |
|
146
FuelCell Energy
FCEL
$1.45B
| $294K | 0.04% |
+45,000
| New | +$347K |
|
147
Albemarle
ALB
$13.4B
| $269K | 0.03% |
+1,500
| New | +$256K |
|
148
CALL
Teradata
TDC
$2.88B
| $256K | 0.03% |
+10,000
| New | +$292K |
|
149
CALL
Snap
SNAP
$7.96B
| $230K | 0.03% |
50,000
-180,000
| -78% | -$1.06M |
|
150
Bioceres Crop Solutions
BIOX
$20.6M
| $211K | 0.03% |
475,000
| – | – |
|
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Ardsley Advisory Partners's Q1 2026 Portfolio in Review
As of Q1 2026, Ardsley Advisory Partners held 214 positions worth $784M, down 14% from $911M the previous quarter. Its ten largest holdings account for 30% of the portfolio.
Ardsley Advisory Partners withdrew a net $154M in Q1 2026, closing 63 positions and reducing 34 holdings. Its most notable exit was First Solar, an estimated $30.7M position sold in full.
By sector, the portfolio is most concentrated in Technology at 33% of assets, down from 37% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Ardsley Advisory Partners opened a new position in United Therapeutics worth $29.6M.
- Ardsley Advisory Partners's largest Q1 2026 buy was United Therapeutics: 50,000 shares worth $29.6M.
- Ardsley Advisory Partners added most to Shoals Technologies Group in Q1 2026, an estimated $18.3M increase.
- Ardsley Advisory Partners's biggest Q1 2026 reduction was Lumentum, cutting an estimated $40.5M.
- Ardsley Advisory Partners fully exited First Solar in Q1 2026, selling an estimated $30.7M.
- Ardsley Advisory Partners's ten largest holdings make up 30% of its $784M portfolio in Q1 2026.
- Ardsley Advisory Partners opened 72 new positions and closed 63 in Q1 2026.
- Ardsley Advisory Partners's portfolio value fell 14% quarter-over-quarter to $784M.
Based on Ardsley Advisory Partners's 13F filing for Q1 2026, filed 15 May 2026.