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Super Investors ARDSLEY ADVISORY PARTNERS LP
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ARDSLEY ADVISORY PARTNERS LP

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$960M
Positions
145
Quarter ended
June 30, 2026
Filed
July 13, 2026

Reported portfolio value by quarter (53 quarters reported)

$960M $255M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$456M in Q2 2013 → $960M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Sandisk Corp 5.9% Trimmed 40% 25,000 $56.7M
Advanced Micro Devices Inc 5.6% Added 1063% 93,000 $54M
Sezzle Inc 3.8% Trimmed 28% 215,000 $36.9M
Terawulf Inc 2.5% Trimmed 8.0% 966,000 $23.7M
BH Brightspring Health Svcs Inc 2.4% Trimmed 7.1% 325,000 $22.7M
Ebay Inc. 2.3% Added 43% 201,000 $22.3M
Sunrun Inc 2.2% Added 41% 1,600,000 $21.4M
Viavi Solutions Inc 1.9% Trimmed 2.5% 390,000 $18.6M
Everpure Inc 1.9% New 233,000 $18.3M
Arm Holdings PLC 1.7% Added 161% 47,000 $16.6M
ST Shoals Technologies Group In 1.7% Trimmed 26% 1,665,000 $16.5M
Amazon Com Inc 1.7% Trimmed 35% 69,000 $16.4M
UT United Therapeutics Corp Del 1.7% Trimmed 40% 30,000 $16.3M
TP Teva Pharmaceutical Inds Ltd 1.6% Trimmed 16% 465,000 $15.8M
Alphabet Inc 1.6% Added 45% 43,500 $15.3M
Palo Alto Networks Inc 1.5% New 43,000 $14.6M
Twilio Inc 1.5% Added 46% 69,000 $14.2M
PS Primoris Svcs Corp 1.4% New 135,000 $13.4M
Apple Inc 1.4% New 45,000 $13M
Zoom Communications Inc 1.3% Added 75% 145,000 $12.5M
MM Modine Mfg Co 1.3% Trimmed 51% 45,000 $12M
Onto Innovation Inc 1.2% New 31,500 $11.9M
Td Synnex Corporation 1.2% New 43,500 $11.6M
BS Brookdale Sr Living Inc Call 1.2% Unchanged 690,000 $11.1M
Enphase Energy Inc 1.1% Added 159% 220,000 $10.8M
Allegiant Travel Co 1.1% New 90,000 $10.6M
Okta Inc 1.1% Added 13% 76,500 $10.4M
Equinix Inc 1.1% Added 26% 10,000 $10.4M
Hut 8 Corp 1.1% Trimmed 40% 90,000 $10.4M
AE Alps ETF Tr 1.1% Unchanged 200,000 $10.4M
Oscar Health Inc 1.0% New 350,000 $9.98M
Bloom Energy Corp 1.0% Added 138% 31,000 $9.4M
Cipher Digital Inc 1.0% Trimmed 17% 375,000 $9.18M
NH Nu Hldgs Ltd 0.9% Unchanged 675,000 $9M
Cerebras Systems Inc 0.9% New 39,000 $8.66M
LH Lumentum Hldgs Inc 0.9% Added 61% 10,000 $8.53M
Remitly Global Inc 0.9% New 375,000 $8.4M
DE Devon Energy Corp New 0.9% New 200,000 $8.26M
Broadcom Inc 0.8% Trimmed 77% 21,000 $7.93M
Alaska Air Group Inc 0.8% Trimmed 9.1% 150,000 $7.83M
Corning Inc 0.8% New 30,000 $7.66M
Fluor Corp 0.8% Added 73% 142,500 $7.47M
Vertex Pharmaceuticals Inc 0.8% New 15,000 $7.45M
Veracyte Inc 0.8% Unchanged 125,000 $7.34M
Semtech Corp 0.8% Trimmed 83% 45,000 $7.28M
Jazz Pharmaceuticals PLC 0.8% New 30,000 $7.23M
Ferroglobe PLC 0.7% New 2,185,000 $6.95M
Akamai Technologies Inc 0.7% New 56,000 $6.62M
Oracle Corp Call 0.7% New 45,000 $6.59M
Verizon Communications Inc 0.7% Added 19% 155,000 $6.57M
Box Inc 0.7% Added 1.7% 240,000 $6.37M
Microchip Technology Inc. 0.7% New 70,000 $6.34M
SL Slb Limited 0.7% New 135,000 $6.28M
Xplr Infrastructure LP 0.6% Added 11% 525,000 $6.2M
Camtek Ltd 0.6% New 37,000 $6.04M
Mirion Technologies Inc 0.6% Unchanged 325,000 $5.83M
Salesforce Inc 0.6% New 36,000 $5.64M
GM Guardian Metal Res PLC 0.6% New 400,000 $5.6M
Genedx Holdings Corp 0.5% Trimmed 25% 75,000 $5.15M
Applied Optoelectronics Inc 0.5% New 35,000 $5.13M

Showing top 60 of 145 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed July 13, 2026

Company Action Shares changed Value of change % of portfolio
Advanced Micro Devices Inc Added +85,000 +$49.4M 5.6%
Sandisk Corp Trimmed −17,000 −$38.5M 5.9%
Semtech Corp Trimmed −213,750 −$34.6M 0.8%
SS State Str SPDR S&P 500 ETF T Exited −49,000 −$31.9M —
Broadcom Inc Trimmed −68,500 −$25.9M 0.8%
Arista Networks Inc Exited −173,700 −$21.3M —
Everpure Inc New +233,000 +$18.3M 1.9%
Meta Platforms Inc Exited −28,000 −$16M —
Broadcom Inc Exited −50,000 −$15.5M —
Nvidia Corporation Exited −87,500 −$15.3M —

Showing the 10 largest of 204 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 15, 2026

Company Action Shares changed Value of change % of portfolio
LH Lumentum Hldgs Inc Trimmed −73,800 −$52M 0.6%
EL Eli Lilly & Co Trimmed −35,000 −$32.2M 0.6%
SS State Str SPDR S&P 500 ETF T New +49,000 +$31.9M 4.1%
First Solar Inc Exited −117,500 −$30.7M —
UT United Therapeutics Corp Del New +50,000 +$29.6M 3.8%
AE Advanced Energy Inds Trimmed −68,000 −$21.9M 0.2%
Argenx Se Exited −24,000 −$20.2M —
IS Ishares Silver Tr Exited −295,000 −$19M —
MM Modine Mfg Co Added +87,500 +$19M 2.5%
Te Connectivity PLC Exited −73,500 −$16.7M —

Showing the 10 largest of 202 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
EL Eli Lilly & Co New +40,000 +$43M 4.7%
Marvell Technology Inc Trimmed −405,000 −$34.4M 0.1%
Hut 8 Corp Trimmed −440,000 −$20.2M 1.8%
Alphabet Inc Exited −70,000 −$17M —
Te Connectivity PLC New +73,500 +$16.7M 1.8%
Sezzle Inc New +245,000 +$15.6M 1.7%
Arm Holdings PLC Exited −108,000 −$15.3M —
Corning Inc Exited −167,878 −$13.8M —
Silicon Motion Technology Co Exited −133,000 −$12.6M —
Eos Energy Enterprises Inc Trimmed −1,045,000 −$12M 0.7%

Showing the 10 largest of 190 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
SS SPDR S&P 500 ETF Tr Exited −50,000 −$30.9M —
FN Fluor Corp New Trimmed −661,000 −$27.8M 0.7%
Arista Networks Inc Trimmed −184,000 −$26.8M 0.6%
First Solar Inc Added +114,000 +$25.1M 3.5%
Sunrun Inc Added +1,290,000 +$22.3M 3.4%
Advanced Micro Devices Inc Exited −155,000 −$22M —
Celestica Inc Exited −135,000 −$21.1M —
Eos Energy Enterprises Inc New +1,600,000 +$18.1M 2.2%
Alphabet Inc New +70,000 +$17M 2.1%
LH Lumentum Hldgs Inc New +86,000 +$14M 1.7%

Showing the 10 largest of 198 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
Marvell Technology Inc New +448,000 +$34.7M 4.6%
SS SPDR S&P 500 ETF Tr New +50,000 +$30.9M 4.1%
Arista Networks Inc New +218,000 +$22.3M 2.9%
Advanced Micro Devices Inc New +155,000 +$22M 2.9%
Broadcom Inc Trimmed −55,600 −$15.3M 2.8%
Nvidia Corporation Added +96,500 +$15.2M 3.1%
Microsoft Corp Added +30,300 +$15.1M 2.7%
AG Alamos Gold Inc New Exited −550,000 −$14.7M —
AH Affirm Hldgs Inc New +197,000 +$13.5M 1.8%
Bwx Technologies Inc New +85,000 +$12.2M 1.6%

Showing the 10 largest of 216 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Salesforce Inc Trimmed −69,500 −$18.7M 1.2%
Broadcom Inc Added +104,600 +$17.5M 4.2%
Arista Networks Inc Exited −108,000 −$11.9M —
Oracle Corp New +80,000 +$11.2M 2.1%
IE Invesco Exchange Traded Fd T Exited −60,000 −$10.5M —
LH Lumentum Hldgs Inc Exited −124,950 −$10.5M —
IT Ishares Tr New +900,000 +$10.3M 2.0%
Itron Inc Trimmed −97,500 −$10.2M 0.9%
Oscar Health Inc Trimmed −775,000 −$10.2M 0.9%
Unitedhealth Group Inc Exited −20,000 −$10.1M —

Showing the 10 largest of 212 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 14, 2025

Company Action Shares changed Value of change % of portfolio
Celestica Inc Trimmed −240,000 −$22.2M 0.9%
Salesforce Inc Added +59,500 +$19.9M 4.9%
Super Micro Computer Inc Exited −40,000 −$16.7M —
Broadcom Inc Trimmed −56,500 −$13.1M 1.0%
Arista Networks Inc New +108,000 +$11.9M 1.9%
KT Kraneshares Trust Exited −350,000 −$11.9M —
FN Fluor Corp New Added +219,650 +$10.8M 4.3%
Super Micro Computer Inc Exited −25,500 −$10.6M —
IE Invesco Exchange Traded Fd T New +60,000 +$10.5M 1.7%
LH Lumentum Hldgs Inc New +124,950 +$10.5M 1.7%

Showing the 10 largest of 196 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 14, 2024

Company Action Shares changed Value of change % of portfolio
SS SPDR S&P 500 ETF Tr Exited −100,000 −$54.4M —
Ftai Aviation Ltd Trimmed −215,450 −$28.6M 0.8%
Sunrun Inc Trimmed −1,237,750 −$22.4M 3.3%
HS Ha Sustainable Infra Cap Inc Trimmed −520,250 −$17.9M 0.1%
Super Micro Computer Inc New +40,000 +$16.7M 2.7%
Pacira Biosciences Inc Exited −580,000 −$16.6M —
Broadcom Inc New +84,500 +$14.6M 2.4%
Sunrun Inc Trimmed −805,000 −$14.5M 1.6%
KT Kraneshares Trust New +350,000 +$11.9M 2.0%
Super Micro Computer Inc New +25,500 +$10.6M 1.7%

Showing the 10 largest of 190 changes.

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