Latest GAGNON SECURITIES LLC Stock Portfolio

$518Million | No. of Holdings #82

GAGNON SECURITIES LLC Performance

2026 Q2+17.73%

YTD+7.28%

2025+2.74%

About GAGNON SECURITIES LLC and 13F Hedge Fund Stock Holdings

On 2026-08-05, the fund reported it's updated stock portfolio. In the 13F Holdings report, GAGNON SECURITIES LLC reported an equity portfolio of $518.8 Millions as of 30 Jun, 2026. <br><br> The top stock holdings of GAGNON SECURITIES LLC are CDNA, SMFR, ENSG. The fund has invested 9.7% of it's portfolio in CAREDX INC and 6.9% of portfolio in GENEDX HOLDINGS CORP. <br><br> The fund managers got completely rid off NAVIGATOR HLDGS LTD (NVGS), ISHARES TR (DMXF) and ALPHA & OMEGA SEMICONDUCTOR LT (AOSL) stocks. They significantly reduced their stock positions in PATTERSON-UTI ENERGY INC (PTEN), MACOM TECH SOLUTIONS HLDGS INC (MTSI) and MARVELL TECHNOLOGY INC (MRVL). GAGNON SECURITIES LLC opened new stock positions in NAVIGATOR HLDGS LTD, WARBY PARKER INC (WRBY) and VERICEL CORP (VCEL). The fund showed a lot of confidence in some stocks as they added substantially to WEBULL CORP (WEAV), QUIDELORTHO CORP (QDEL) and GENEDX HOLDINGS CORP (SMFR).

GAGNON SECURITIES LLC Equity Portfolio Value

Last Reported on: 05 Aug, 2026

$518Million

as of Aug 05, 2026

GAGNON SECURITIES LLC Annual Return Estimates Vs S&P 500

Our best estimate is that GAGNON SECURITIES LLC made a return of 17.73% in the last quarter. In trailing 12 months, it's portfolio return was 11.81%.

Performance
S&P 500

New Buys

Ticker	$ Bought
navigator hldgs ltd	11,697,600
warby parker inc	345,300
vericel corp	324,910
beyond meats inc	285,953

New stocks bought by GAGNON SECURITIES LLC

Additions

Ticker	% Inc.
webull corp	359
quidelortho corp	155
genedx holdings corp	73.14
vertex inc	62.54
hinge health inc	47.25
cargurus inc	35.19
blackline inc	26.77
bio-techne corp	23.8

Additions to existing portfolio by GAGNON SECURITIES LLC

Reductions

Ticker	% Reduced
patterson-uti energy inc	-94.46
macom tech solutions hldgs inc	-65.1
marvell technology inc	-57.17
pfizer inc	-47.25
treace med concepts inc	-41.76
micron technology inc	-36.95
rambus inc del	-34.68
viavi solutions inc	-31.18

GAGNON SECURITIES LLC reduced stake in above stock

Sold off

Ticker	$ Sold
navigator hldgs ltd	-17,138,600
alpha & omega semiconductor lt	-3,720,090
gambling com group limited	-425,624
ishares tr	-9,331,380
savers value vlg inc	-187,101
eog res inc	-267,599

GAGNON SECURITIES LLC got rid off the above stocks

Sector Distribution

GAGNON SECURITIES LLC has about 33.8% of it's holdings in Healthcare sector.

Healthcare
Technology
Industrials
Consumer Cyclical
Others
Real Estate
Energy

Sector	%
Healthcare	33.8
Technology	15.7
Industrials	12.3
Consumer Cyclical	12.2
Others	9.2
	6.9
Real Estate	4.9
Energy	3.8

Market Cap. Distribution

GAGNON SECURITIES LLC has about 22.6% of it's portfolio invested in the large-cap and mega-cap stocks.

SMALL-CAP
LARGE-CAP
MID-CAP
UNALLOCATED
MICRO-CAP

Category	%
SMALL-CAP	42.2
LARGE-CAP	22.6
MID-CAP	20.5
UNALLOCATED	9.2
MICRO-CAP	4.6

Stocks belong to which Index?

About 68.6% of the stocks held by GAGNON SECURITIES LLC either belong to S&P 500 or RUSSELL 2000 index.

RUSSELL 2000
Others
S&P 500

Index	%
RUSSELL 2000	52.4
Others	31.4
S&P 500	16.2

Top 5 Winners (%)		%
APPS	digital turbine inc	347.9 %
MU	micron technology inc	197.0 %
TMCI	treace med concepts inc	155.9 %
MRVL	marvell technology inc	143.4 %
HIMX	himax technologies inc	89.3 %

Top 5 Winners ($)		$
CDNA	caredx inc	19.7 M
TMCI	treace med concepts inc	10.9 M
GNRC	generac hldgs inc	7.2 M
	hinge health inc	6.8 M
CAKE	cheesecake factory inc	5.5 M

Top 5 Losers (%)		%
CNF	cnfinance hldgs ltd	-28.6 %
T	at&t inc	-28.1 %
	nintendo ltd	-26.5 %
SAM	boston beer inc	-23.1 %
BL	blackline inc	-22.1 %

Top 5 Losers ($)		$
ENSG	ensign group inc	-7.3 M
BL	blackline inc	-3.0 M
ISRG	intuitive surgical inc	-1.9 M
EPD	enterprise prods partners l p	-0.6 M
CELC	celcuity inc	-0.5 M

GAGNON SECURITIES LLC Holdings Map

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

Current Stock Holdings of GAGNON SECURITIES LLC

GAGNON SECURITIES LLC has 82 stocks in it's portfolio. About 47.7% of the portfolio is in top 10 stocks. ENSG proved to be the most loss making stock for the portfolio. CDNA was the most profitable stock for GAGNON SECURITIES LLC last quarter.

$518.83MTotal Value

89.00Positions

05 Aug, 2026Last Reported

Current holdings of Current Stock Holdings of GAGNON SECURITIES LLC, last reported on 05 Aug, 2026. Select a row with a linked ticker to view its historical trend.
Holdingsorted ascending	% Portfolio	Shares Held	$ Value	% Change
AKAM Akamai Technologies Inc Akamai Technologies IncAKAM GAGNON SECURITIES LLC's holding in Akamai Technologies Inc over time	0.07%	3,163	$373.9K 0.07%	increased 9.22 percentadded

ALRN Rein Therapeutics Inc Rein Therapeutics IncALRN GAGNON SECURITIES LLC's holding in Rein Therapeutics Inc over time	0.05%	229,070	$238.2K 0.05%	decreased 4.36 percentreduced

AMPL Amplitude Inc Amplitude IncAMPL GAGNON SECURITIES LLC's holding in Amplitude Inc over time	1.56%	1,055,510	$8.07M 1.56%	decreased 0.41 percentreduced

AMRC Ameresco Inc Ameresco IncAMRC GAGNON SECURITIES LLC's holding in Ameresco Inc over time	4.4%	826,562	$22.81M 4.4%	decreased 1.61 percentreduced

AOSL Alpha & Omega Semiconductor Lt Alpha & Omega Semiconductor LtAOSL GAGNON SECURITIES LLC's holding in Alpha & Omega Semiconductor Lt over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

APPS Digital Turbine Inc Digital Turbine IncAPPS GAGNON SECURITIES LLC's holding in Digital Turbine Inc over time	0.2%	81,839	$1.06M 0.2%	unchanged 0 percentunchanged

ASPN Aspen Aerogels Inc Aspen Aerogels IncASPN GAGNON SECURITIES LLC's holding in Aspen Aerogels Inc over time	1.88%	1,535,810	$9.74M 1.88%	decreased 17.51 percentreduced

ATNM Actinium Pharmaceuticals Inc Actinium Pharmaceuticals IncATNM GAGNON SECURITIES LLC's holding in Actinium Pharmaceuticals Inc over time	0.03%	182,142	$178.5K 0.03%	decreased 9.52 percentreduced

BL Blackline Inc Blackline IncBL GAGNON SECURITIES LLC's holding in Blackline Inc over time	2.03%	375,769	$10.55M 2.03%	increased 26.77 percentadded

BLFS Biolife Solutions Inc Biolife Solutions IncBLFS GAGNON SECURITIES LLC's holding in Biolife Solutions Inc over time	2.92%	535,906	$15.13M 2.92%	decreased 0.11 percentreduced

BX Blackstone Inc Blackstone IncBX GAGNON SECURITIES LLC's holding in Blackstone Inc over time	0.04%	1,940	$228.3K 0.04%	unchanged 0 percentunchanged

BYND Beyond Meats Inc Beyond Meats IncBYND GAGNON SECURITIES LLC's holding in Beyond Meats Inc over time	0.06%	381,271	$286.0K 0.06%	new position

CAKE Cheesecake Factory Inc Cheesecake Factory IncCAKE GAGNON SECURITIES LLC's holding in Cheesecake Factory Inc over time	3.4%	221,792	$17.64M 3.4%	decreased 1.45 percentreduced

CARG Cargurus Inc Cargurus IncCARG GAGNON SECURITIES LLC's holding in Cargurus Inc over time	2.41%	367,073	$12.51M 2.41%	increased 35.19 percentadded

CDNA Caredx Inc Caredx IncCDNA GAGNON SECURITIES LLC's holding in Caredx Inc over time	9.73%	1,770,740	$50.47M 9.73%	increased 0.5 percentadded

CELC Celcuity Inc Celcuity IncCELC GAGNON SECURITIES LLC's holding in Celcuity Inc over time	1.07%	53,240	$5.57M 1.07%	decreased 0.19 percentreduced

CGNX Cognex Corp Cognex CorpCGNX GAGNON SECURITIES LLC's holding in Cognex Corp over time	0.14%	9,798	$709.6K 0.14%	increased 0.18 percentadded

CMG Chipotle Mexican Grill Inc Chipotle Mexican Grill IncCMG GAGNON SECURITIES LLC's holding in Chipotle Mexican Grill Inc over time	1.02%	155,463	$5.29M 1.02%	decreased 1.51 percentreduced

CNF Cnfinance Hldgs Ltd Cnfinance Hldgs Ltd CNF GAGNON SECURITIES LLC's holding in Cnfinance Hldgs Ltd over time	0.18%	332,345	$920.6K 0.18%	increased 5.86 percentadded

CTRE Caretrust Reit Inc Caretrust Reit IncCTRE GAGNON SECURITIES LLC's holding in Caretrust Reit Inc over time	1.01%	129,955	$5.24M 1.01%	decreased 2.32 percentreduced