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ARDSLEY ADVISORY PARTNERS LP

Q2 2026 13F filing

Updated 59 days ago

145 disclosed positions worth $960.2M

Portfolio value
$960.2M
Total holdings
145
New positions
62
Closed positions
53
Increased
28
Decreased
31
Turnover
79.3%
Filed
2026-07-13

Full holdings

Every line item disclosed in Q2 2026

S

SANDISK CORP

+92.3%
Value
$56.7M
Shares
25.0K
% Port
5.90%
A
2.AMD

ADVANCED MICRO DEVICES INC

+1062.5%
Value
$54M
Shares
93.0K
% Port
5.63%
S

SEZZLE INC

-28.3%
Value
$36.9M
Shares
215.0K
% Port
3.84%
W

TERAWULF INC

-8.0%
Value
$23.7M
Shares
966.0K
% Port
2.47%
?
5.N/A

BRIGHTSPRING HEALTH SVCS INC

-7.1%
Value
$22.7M
Shares
325.0K
% Port
2.36%
E

EBAY INC.

+43.1%
Value
$22.3M
Shares
201.0K
% Port
2.32%
R
7.RUN

SUNRUN INC

+41.0%
Value
$21.4M
Shares
1.60M
% Port
2.23%
V

VIAVI SOLUTIONS INC

-2.5%
Value
$18.6M
Shares
390.0K
% Port
1.94%
?
9.N/A

EVERPURE INC

Value
$18.3M
Shares
233.0K
% Port
1.91%
A
10.ARM

ARM HOLDINGS PLC

+161.1%
Value
$16.6M
Shares
47.0K
% Port
1.73%
?
11.N/A

SHOALS TECHNOLOGIES GROUP IN

-26.3%
Value
$16.5M
Shares
1.67M
% Port
1.72%
A
12.AMZN

AMAZON COM INC

+43.8%
Value
$16.4M
Shares
69.0K
% Port
1.71%
U
13.UTHR

UNITED THERAPEUTICS CORP DEL

-40.0%
Value
$16.3M
Shares
30.0K
% Port
1.69%
T

TEVA PHARMACEUTICAL INDS LTD

-16.2%
Value
$15.8M
Shares
465.0K
% Port
1.64%
G

ALPHABET INC

+45.0%
Value
$15.3M
Shares
43.5K
% Port
1.60%
P
16.PANW

PALO ALTO NETWORKS INC

Value
$14.6M
Shares
43.0K
% Port
1.52%
T
17.TWLO

TWILIO INC

+1280.0%
Value
$14.2M
Shares
69.0K
% Port
1.48%
P
18.PRIM

PRIMORIS SVCS CORP

Value
$13.4M
Shares
135.0K
% Port
1.39%
A
19.AAPL

APPLE INC

+50.0%
Value
$13M
Shares
45.0K
% Port
1.35%
?
20.N/A

ZOOM COMMUNICATIONS INC

+530.4%
Value
$12.5M
Shares
145.0K
% Port
1.30%
M
21.MOD

MODINE MFG CO

-50.6%
Value
$12M
Shares
45.0K
% Port
1.25%
O
22.ONTO

ONTO INNOVATION INC

Value
$11.9M
Shares
31.5K
% Port
1.24%
S
23.SNX

TD SYNNEX CORPORATION

Value
$11.6M
Shares
43.5K
% Port
1.21%
?
24.N/A

BROOKDALE SR LIVING INC

Unchanged
Value
$11.1M
Shares
690.0K
% Port
1.16%
?
25.N/A

ENPHASE ENERGY INC

+158.8%
Value
$10.8M
Shares
220.0K
% Port
1.12%
A
26.ALGT

ALLEGIANT TRAVEL CO

Value
$10.6M
Shares
90.0K
% Port
1.10%
?
27.N/A

OKTA INC

+1430.0%
Value
$10.4M
Shares
76.5K
% Port
1.09%
E
28.EQIX

EQUINIX INC

+150.0%
Value
$10.4M
Shares
10.0K
% Port
1.09%
H
29.HUT

HUT 8 CORP

-40.0%
Value
$10.4M
Shares
90.0K
% Port
1.08%
?
30.N/A

ALPS ETF TR

Unchanged
Value
$10.4M
Shares
200.0K
% Port
1.08%
?
31.N/A

OSCAR HEALTH INC

Value
$10M
Shares
350.0K
% Port
1.04%
B
32.BE

BLOOM ENERGY CORP

+138.5%
Value
$9.4M
Shares
31.0K
% Port
0.98%
C
33.CIFR

CIPHER DIGITAL INC

-16.7%
Value
$9.2M
Shares
375.0K
% Port
0.96%
N
34.NU

NU HLDGS LTD

Unchanged
Value
$9M
Shares
675.0K
% Port
0.94%
C
35.CBRS

CEREBRAS SYSTEMS INC

Value
$8.7M
Shares
39.0K
% Port
0.90%
L
36.LITE

LUMENTUM HLDGS INC

+61.3%
Value
$8.5M
Shares
10.0K
% Port
0.89%
?
37.N/A

REMITLY GLOBAL INC

Value
$8.4M
Shares
375.0K
% Port
0.88%
D
38.DVN

DEVON ENERGY CORP NEW

Value
$8.3M
Shares
200.0K
% Port
0.86%
A
39.AVGO

BROADCOM INC

-58.0%
Value
$7.9M
Shares
21.0K
% Port
0.83%
A
40.ALK

ALASKA AIR GROUP INC

-9.1%
Value
$7.8M
Shares
150.0K
% Port
0.82%
G
41.GLW

CORNING INC

Value
$7.7M
Shares
30.0K
% Port
0.80%
F
42.FLR

FLUOR CORP

+72.7%
Value
$7.5M
Shares
142.5K
% Port
0.78%
V
43.VRTX

VERTEX PHARMACEUTICALS INC

Value
$7.5M
Shares
15.0K
% Port
0.78%
?
44.N/A

VERACYTE INC

Unchanged
Value
$7.3M
Shares
125.0K
% Port
0.76%
S
45.SMTC

SEMTECH CORP

+50.0%
Value
$7.3M
Shares
45.0K
% Port
0.76%
J
46.JAZZ

JAZZ PHARMACEUTICALS PLC

Value
$7.2M
Shares
30.0K
% Port
0.75%
G
47.GSM

FERROGLOBE PLC

Value
$6.9M
Shares
2.19M
% Port
0.72%
A
48.AKAM

AKAMAI TECHNOLOGIES INC

Value
$6.6M
Shares
56.0K
% Port
0.69%
O

ORACLE CORP

Value
$6.6M
Shares
45.0K
% Port
0.69%
V
50.VZ

VERIZON COMMUNICATIONS INC

+19.2%
Value
$6.6M
Shares
155.0K
% Port
0.68%