Latest ARDSLEY ADVISORY PARTNERS LP Stock Portfolio

ARDSLEY ADVISORY PARTNERS LP Performance:

2025 Q4: 8.24%YTD: 29.18%2024: 8.81%

Performance for 2025 Q4 is 8.24%, and YTD is 29.18%, and 2024 is 8.81%.

About ARDSLEY ADVISORY PARTNERS LP and 13F Hedge Fund Stock Holdings

ARDSLEY ADVISORY PARTNERS LP is a hedge fund based in Stamford, CT. On 2026-02-17, the fund reported it's updated stock portfolio. In the 13F Holdings report, ARDSLEY ADVISORY PARTNERS LP reported an equity portfolio of $911.1 Millions as of 31 Dec, 2025.

The top stock holdings of ARDSLEY ADVISORY PARTNERS LP are LLY, FSLR, LITE. The fund has invested 4.7% of it's portfolio in ELI LILLY & CO and 3.4% of portfolio in FIRST SOLAR INC.

The fund managers got completely rid off SILICON MOTION TECHNOLOGY CO (SIMO), OKTA INC (OKTA) and RIOT PLATFORMS INC (RIOT) stocks. They significantly reduced their stock positions in APPLIED OPTOELECTRONICS INC (AAOI), AAON INC (AAON) and EOS ENERGY ENTERPRISES INC (EOSE). ARDSLEY ADVISORY PARTNERS LP opened new stock positions in ELI LILLY & CO (LLY), TE CONNECTIVITY PLC and TEXAS INSTRS INC (TXN). The fund showed a lot of confidence in some stocks as they added substantially to BLOOM ENERGY CORP (BE), BIOCERES CROP SOLUTIONS CORP (BIOX) and TRIPADVISOR INC (TRIP).

ARDSLEY ADVISORY PARTNERS LP Annual Return Estimates Vs S&P 500

Our best estimate is that ARDSLEY ADVISORY PARTNERS LP made a return of 8.24% in the last quarter. In trailing 12 months, it's portfolio return was 29.18%.

Performance
S&P 500

New Buys

Ticker	$ Bought
eli lilly & co	42,987,200
te connectivity plc	16,722,000
sezzle inc	15,551,400
texas instrs inc	10,409,400
ferroglobe plc	9,836,800
ishares tr	9,787,400
twilio inc	8,890,000
mongodb inc	8,694,250

New stocks bought by ARDSLEY ADVISORY PARTNERS LP

Additions

Ticker	% Inc.
bloom energy corp	920
bioceres crop solutions corp	691
tripadvisor inc	533
salesforce inc	450
nexgen energy ltd	350
cameco corp	250
tic solutions inc	200
semtech corp	196

Additions to existing portfolio by ARDSLEY ADVISORY PARTNERS LP

Reductions

Ticker	% Reduced
applied optoelectronics inc	-93.14
aaon inc	-90.68
eos energy enterprises inc	-65.31
oracle corp	-64.71
hut 8 corp	-55.00
intel corp	-53.85
xplr infrastructure lp	-48.86
sandisk corp	-44.00

ARDSLEY ADVISORY PARTNERS LP reduced stake in above stock

Sold off

Ticker	$ Sold
riot platforms inc	-8,563,500
adma biologics inc	-6,230,500
oscar health inc	-7,098,750
powerfleet inc	-917,000
tetra technologies inc del	-1,006,250
draftkings inc new	-5,423,000
confluent inc	-2,673,000
silicon motion technology co	-12,609,700

ARDSLEY ADVISORY PARTNERS LP got rid off the above stocks

Sector Distribution

ARDSLEY ADVISORY PARTNERS LP has about 35.7% of it's holdings in Technology sector.

Sector	%
Technology	35.7
Others	26.8
Healthcare	12.1
Industrials	6.7
Consumer Cyclical	5.2
Communication Services	4
Utilities	3.3
Financial Services	2.3
Energy	1.6
Consumer Defensive	1.2

Market Cap. Distribution

ARDSLEY ADVISORY PARTNERS LP has about 50.9% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
LARGE-CAP	31
UNALLOCATED	26.8
MEGA-CAP	19.9
MID-CAP	18.7
SMALL-CAP	3.3

Stocks belong to which Index?

About 51.7% of the stocks held by ARDSLEY ADVISORY PARTNERS LP either belong to S&P 500 or RUSSELL 2000 index.

Index	%
Others	48.3
S&P 500	34.6
RUSSELL 2000	17.1

Top 5 Winners (%)		%
LITE	lumentum hldgs inc	122.1 %
	sandisk corp	87.0 %
TEVA	teva pharmaceutical inds ltd	48.9 %
PROF	profound med corp	48.9 %
SLV	ishares silver tr	40.3 %

Top 5 Winners ($)		$
LITE	lumentum hldgs inc	17.1 M
	sandisk corp	9.8 M
	hut 8 corp	6.5 M
TEVA	teva pharmaceutical inds ltd	5.9 M
SLV	ishares silver tr	5.5 M

Top 5 Losers (%)		%
METC	ramaco res inc	-40.0 %
STKL	sunopta inc	-29.5 %
ORCL	oracle corp	-20.7 %
ESOA	energy svcs acquisition corp	-17.6 %
	tic solutions inc	-17.4 %

Top 5 Losers ($)		$
ORCL	oracle corp	-4.9 M
STKL	sunopta inc	-1.8 M
ANET	arista networks inc	-1.0 M
MSFT	microsoft corp	-1.0 M
PANW	palo alto networks inc	-0.7 M

ARDSLEY ADVISORY PARTNERS LP Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of ARDSLEY ADVISORY PARTNERS LP

ARDSLEY ADVISORY PARTNERS LP has 113 stocks in it's portfolio. About 28.3% of the portfolio is in top 10 stocks. ORCL proved to be the most loss making stock for the portfolio. LITE was the most profitable stock for ARDSLEY ADVISORY PARTNERS LP last quarter.

Last Reported on: 17 Feb, 2026

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
AAOI	applied optoelectronics inc	0.10	25,000	871,500	reduced	-93.14

AAON	aaon inc	0.03	3,000	228,750	reduced	-90.68

ABNB	airbnb inc	0.39	26,000	3,528,720	new

ADMA	adma biologics inc	0.00	0.00	0.00	sold off	-100

AEIS	advanced energy inds	1.68	73,000	15,284,000	added	64.04

AES	aes corp	0.00	0.00	0.00	sold off	-100

AFRM	affirm hldgs inc	0.17	21,000	1,556,310	added	5.00

AGI	alamos gold inc new	1.27	300,000	11,574,000	reduced	-7.69

ALDX	aldeyra therapeutics inc	0.82	1,450,000	7,511,000	reduced	-23.68

AMPS	ishares tr	1.07	140,000	9,787,400	new

AMRC	ameresco inc	0.16	50,000	1,464,500	unchanged	0.00

AMZN	amazon com inc	1.37	54,000	12,469,100	reduced	-28.48

ANET	arista networks inc	1.44	100,000	13,103,000	added	194

APP	applovin corp	0.00	0.00	0.00	sold off	-100

ARGX	argenx se	2.21	24,000	20,182,800	added	60.00

ARRY	array technologies inc	0.03	25,000	230,500	new

AVGO	broadcom inc	3.19	84,000	29,080,800	added	38.84

AVY	avery dennison corp	0.42	21,000	3,819,480	new

BE	bloom energy corp	0.49	51,000	4,431,390	added	920

BFLY	butterfly network inc	0.00	0.00	0.00	sold off	-100