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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 | |
|---|---|---|---|---|---|---|
1
CALL
State Street SPDR S&P 500 ETF Trust
SPY
$783B
| $31.9M | 4.06% |
+49,000
| New | +$33.3M |
|
|
2
United Therapeutics
UTHR
$26.1B
| $29.6M | 3.78% |
+50,000
| New | +$24.9M |
|
3
Broadcom
AVGO
$1.81T
| $27.7M | 3.53% |
89,500
+5,500
| +7% | +$1.81M |
|
|
SNDK
4
Sandisk
SNDK
$162B
| $26.7M | 3.41% |
42,000
-14,000
| -25% | -$7.91M |
|
5
Amazon
AMZN
$2.48T
| $22.1M | 2.81% |
106,000
+52,000
| +96% | +$11.4M |
|
6
Arista Networks
ANET
$214B
| $21.3M | 2.72% |
173,700
+73,700
| +74% | +$9.86M |
|
7
Semtech
SMTC
$10.4B
| $19.9M | 2.54% |
258,750
+21,750
| +9% | +$1.79M |
|
|
8
Modine Manufacturing
MOD
$11B
| $19.7M | 2.52% |
91,100
+87,500
| +2,431% | +$16.5M |
|
|
SEZL
9
Sezzle
SEZL
$5.28B
| $19M | 2.42% |
300,000
+55,000
| +22% | +$3.75M |
|
10
Teva Pharmaceuticals
TEVA
$36.9B
| $16.7M | 2.13% |
555,000
-25,000
| -4% | -$804K |
|
|
11
Meta Platforms (Facebook)
META
$1.51T
| $16M | 2.04% |
28,000
+26,000
| +1,300% | +$16.7M |
|
|
12
CALL
Broadcom
AVGO
$1.81T
| $15.5M | 1.97% |
50,000
| – | – |
|
13
Sunrun
RUN
$2.3B
| $15.4M | 1.96% |
1,135,000
-345,000
| -23% | -$5.74M |
|
14
NVIDIA
NVDA
$4.77T
| $15.3M | 1.95% |
87,500
-37,500
| -30% | -$6.88M |
|
15
TeraWulf
WULF
$8.47B
| $15.1M | 1.93% |
1,050,000
-115,000
| -10% | -$1.71M |
|
16
BrightSpring Health Services
BTSG
$14.2B
| $14.9M | 1.9% |
350,000
| – | – |
|
|
17
Shoals Technologies Group
SHLS
$1.43B
| $14.9M | 1.9% |
2,260,000
+2,235,000
| +8,940% | +$18.3M |
|
18
Viavi Solutions
VIAV
$8.66B
| $13.3M | 1.7% |
400,000
-40,000
| -9% | -$1.06M |
|
19
eBay
EBAY
$52.1B
| $12.8M | 1.63% |
140,500
+55,500
| +65% | +$4.99M |
|
20
Alerian MLP ETF
AMLP
$12.9B
| $10.5M | 1.34% |
+200,000
| New | +$10.2M |
|
|
21
CALL
Amazon
AMZN
$2.48T
| $10M | 1.27% |
+48,000
| New | +$10.6M |
|
22
Nu Holdings
NU
$70.9B
| $9.7M | 1.24% |
675,000
+35,000
| +5% | +$567K |
|
23
CALL
Brookdale Senior Living
BKD
$3.67B
| $9.44M | 1.2% |
690,000
| – | – |
|
|
24
Boston Scientific
BSX
$68.5B
| $9.41M | 1.2% |
+150,000
| New | +$12M |
|
25
Alphabet (Google) Class C
GOOG
$4.07T
| $8.61M | 1.1% |
30,000
-27,000
| -47% | -$8.48M |
|
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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.