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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 | |
|---|---|---|---|---|---|---|
151
Teradata
TDC
$2.88B
| $205K | 0.03% |
+8,000
| New | +$234K |
|
152
Applied Optoelectronics
AAOI
$6.14B
| – | – |
-25,000
| Closed | -$872K |
|
153
Aaon
AAON
$6.95B
| – | – |
-3,000
| Closed | -$229K |
|
154
CALL
Airbnb
ABNB
$90.8B
| – | – |
-55,000
| Closed | -$7.46M |
|
|
155
Airbnb
ABNB
$90.8B
| – | – |
-26,000
| Closed | -$3.53M |
|
156
Affirm
AFRM
$23.5B
| – | – |
-21,000
| Closed | -$1.56M |
|
157
Ameresco
AMRC
$980M
| – | – |
-50,000
| Closed | -$1.46M |
|
|
158
argenx
ARGX
$55.2B
| – | – |
-24,000
| Closed | -$20.2M |
|
159
CALL
Arm
ARM
$240B
| – | – |
-85,000
| Closed | -$9.29M |
|
160
Baker Hughes
BKR
$58.3B
| – | – |
-85,000
| Closed | -$3.87M |
|
161
Compass
COMP
$8.67B
| – | – |
-100,000
| Closed | -$1.06M |
|
162
CALL
Salesforce
CRM
$154B
| – | – |
-18,000
| Closed | -$4.77M |
|
|
163
Salesforce
CRM
$154B
| – | – |
-33,000
| Closed | -$8.73M |
|
164
Cognizant
CTSH
$26.5B
| – | – |
-22,000
| Closed | -$1.83M |
|
165
Curtiss-Wright
CW
$25.1B
| – | – |
-2,500
| Closed | -$1.38M |
|
166
Deckers Outdoor
DECK
$14.1B
| – | – |
-35,000
| Closed | -$3.63M |
|
167
PUT
Dell
DELL
$239B
| – | – |
-36,000
| Closed | -$4.53M |
|
|
DQ
168
Daqo New Energy
DQ
$810M
| – | – |
-85,000
| Closed | -$2.07M |
|
169
EPAM Systems
EPAM
$5.58B
| – | – |
-7,000
| Closed | -$1.43M |
|
|
170
CALL
First Solar
FSLR
$21.4B
| – | – |
-10,000
| Closed | -$2.61M |
|
|
171
First Solar
FSLR
$21.4B
| – | – |
-117,500
| Closed | -$30.7M |
|
172
Global E Online
GLBE
$6.76B
| – | – |
-39,000
| Closed | -$1.53M |
|
173
PUT
Corning
GLW
$107B
| – | – |
-20,000
| Closed | -$1.75M |
|
174
FerroAtlántica
GSM
$590M
| – | – |
-2,120,000
| Closed | -$9.84M |
|
175
Halliburton
HAL
$26.1B
| – | – |
-100,000
| Closed | -$2.83M |
|
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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.