HolderBook

GAGNON SECURITIES LLC

Reported holdings as of Q2 2026, from 31 quarterly filings.

CIK
1125725
Reported value
$518.8M
Positions
83
Top 10 weight
47.7%
Filed
2026-08-05
Days after quarter end
36

Holdings

SecurityTickerValue SharesWeightWeight change Held Change
CAREDX INCCDNA$50.5M1,770,7359.73%+2.67pp31q+0.5%+$252.5K
GENEDX HOLDINGS CORPWGS$36.0M524,8656.94%+2.45pp13q+73.1%+$15.2M
ENSIGN GROUP INCENSG$27.9M173,9115.37%-2.98pp31q-3.2%-$923.3K
AMERESCO INCAMRC$22.8M826,5624.40%-0.55pp31q-1.6%-$372.6K
GENERAC HLDGS INCGNRC$21.4M73,1704.13%+0.75pp31q-2.3%-$510.4K
ENTERPRISE PRODS PARTNERS LEPD$18.8M510,5763.62%-0.87pp31q-0.7%-$135.3K
QUIDELORTHO CORPQDEL$18.0M1,030,3713.48%+1.95pp17q+155.5%+$11.0M
CHEESECAKE FACTORY INCCAKE$17.6M221,7923.40%+0.56pp31q-1.4%-$259.0K
EQUINIX INCEQIX$17.4M16,7203.36%-0.48pp31q-1.4%-$240.8K
CARMAX INCKMX$17.2M325,4103.32%+0.34pp31q+5.1%+$831.0K
FRESHWORKS INCFRSH$15.8M1,563,8663.05%-0.16pp20q-9.7%-$1.7M
PACIRA BIOSCIENCES INCPCRX$15.4M608,6172.98%-0.25pp29q-1.4%-$225.6K
FIVE9 INCFIVN$15.4M722,6982.97%+0.79pp31q+16.2%+$2.1M
HINGE HEALTH INCHNGE$15.2M182,9592.93%+1.82pp2q+47.3%+$4.9M
BIOLIFE SOLUTIONS INCBLFS$15.1M535,9062.92%+0.55pp25qHELD
PROFOUND MED CORPPROF$13.0M1,960,0742.51%-0.40pp27q+0.8%+$104.7K
CARGURUS INCCARG$12.5M367,0732.41%+0.28pp16q+35.2%+$3.3M
TREACE MED CONCEPTS INCTMCI$12.1M3,029,5432.32%+0.71pp9q-41.8%-$8.6M
000000000$11.7M765,1792.25%-newNEW
INTUITIVE SURGICAL INCISRG$11.6M29,1442.23%-1.13pp31q-7.8%-$984.3K
BLACKLINE INCBL$10.5M375,7692.03%-0.50pp31q+26.8%+$2.2M
ASPEN AEROGELS INCASPN$9.7M1,535,8121.88%+0.41pp5q-17.5%-$2.1M
PROTO LABS INCPRLB$9.5M116,2831.83%+0.37pp30q+4.9%+$439.7K
VERTEX INCVERX$8.7M761,0261.68%+0.40pp11q+62.5%+$3.4M
AMPLITUDE INCAMPL$8.1M1,055,5081.56%-0.11pp4qHELD
MARINEMAX INCHZO$7.7M211,4801.49%+0.11pp4q-4.1%-$334.3K
ORASURE TECHNOLOGIES INCOSUR$7.1M1,592,1471.37%+0.18pp6q-7.1%-$545.2K
DOUBLEVERIFY HLDGS INCDV$5.7M523,3281.09%+0.02pp11q+7.1%+$377.9K
CELCUITY INCCELC$5.6M53,2401.07%-0.33pp31qHELD
CHIPOTLE MEXICAN GRILL INCCMG$5.3M155,4631.02%-0.15pp31q-1.5%-$81.1K
CARETRUST REIT INCCTRE$5.2M129,9551.01%-0.11pp31q-2.3%-$124.7K
PENNANT GROUP INCPNTG$5.0M135,0350.96%-0.01pp27q-1.8%-$90.5K
WHITECAP RESOURCES INCWCPRF$4.5M435,1000.87%-0.26pp6qHELD
ICU MED INCICUI$4.3M29,4000.83%-0.06pp14q-1.2%-$50.3K
KALTURA INCKLTR$4.2M3,266,9990.82%-0.10pp13qHELD
MICROCHIP TECHNOLOGY INC.MCHP$2.4M26,2290.46%+0.06pp31q-2.3%-$55.5K
GENTEX CORPGNTX$1.4M57,1590.28%-0.01pp31qHELD
GLOBAL NET LEASE INCGNL$1.4M160,5980.28%-0.09pp12q-5.6%-$85.2K
SL GREEN RLTY CORPSLG$1.3M25,8620.26%+0.04pp18qHELD
BOSTON BEER INCSAM$1.3M7,2830.25%-0.14pp17q+0.6%+$7.8K
NCINO INCNCNO$1.2M75,3330.24%-0.04pp7q-5.3%-$68.5K
FLAGSTAR BANK NATIONAL ASSOCFLG$1.1M74,4560.21%-0.01pp9qHELD
DIGITAL TURBINE INCAPPS$1.1M81,8390.20%+0.15pp14qHELD
WEAVE COMMUNICATIONS INCWEAV$998.7K157,1700.19%+0.16pp7q+359.3%+$781.3K
DOCUSIGN INCDOCU$928.6K20,9060.18%-0.05pp2q-1.5%-$14.5K
CNFINANCE HLDGS LTDCNF$920.6K332,3450.18%-0.11pp4q+5.9%+$51.0K
ALPHABET INCGOOGL$913.4K2,5560.18%+0.01pp22qHELD
MARVELL TECHNOLOGY INCMRVL$870.7K2,9230.17%+0.01pp22q-57.2%-$1.2M
BIO-TECHNE CORPTECH$864.0K12,2300.17%+0.05pp12q+23.8%+$166.1K
DEVON ENERGY CORP NEWDVN$785.9K19,0210.15%-0.07pp22qHELD
MICRON TECHNOLOGY INCMU$783.8K6790.15%+0.07pp14q-37.0%-$459.4K
Nintendo Co LtdNTDOY$740.7K70,6750.14%-0.09pp31q+1.4%+$10.2K
COGNEX CORPCGNX$709.6K9,7980.14%+0.03pp10qHELD
NVIDIA CORPORATIONNVDA$699.9K3,4980.13%-0.01pp13q-4.3%-$31.4K
COMMVAULT SYS INCCVLT$690.8K4,8740.13%+0.05pp15q+11.4%+$70.6K
ALPHABET INCGOOG$681.6K1,9290.13%flat4qHELD
ONTO INNOVATION INCONTO$646.8K1,7090.12%+0.02pp4q-23.8%-$201.7K
AT&T INCT$639.6K30,8980.12%-0.09pp31q-3.7%-$24.8K
HIMAX TECHNOLOGIES INCHIMX$605.9K39,4980.12%+0.04pp10q-11.8%-$80.9K
PFIZER INCPFE$562.2K23,3460.11%-0.18pp31q-47.3%-$503.6K
LIFE TIME GROUP HOLDINGS INCLTH$549.9K13,4650.11%+0.02pp12q-0.6%-$3.5K
MACOM TECH SOLUTIONS HLDGS IMTSI$487.3K1,2810.09%-0.09pp4q-65.1%-$908.7K
VIAVI SOLUTIONS INCVIAV$476.8K9,9860.09%-0.02pp26q-31.2%-$216.1K
META PLATFORMS INCMETA$472.6K8390.09%-0.02pp14qHELD
SHOPIFY INCSHOP$459.3K4,0230.09%-0.02pp16q+2.3%+$10.4K
ETSY INCETSY$433.5K5,7550.08%+0.02pp11qHELD
STARBUCKS CORPSBUX$413.4K4,0450.08%flat17q-0.6%-$2.7K
MERCK & CO INCMRK$409.5K3,1870.08%-0.01pp24qHELD
CES ENERGY SOLUTIONS CORP$389.5K33,3500.08%-0.03pp31qHELD
AKAMAI TECHNOLOGIES INCAKAM$373.9K3,1630.07%flat3q+9.2%+$31.6K
WARBY PARKER INCWRBY$345.3K11,3810.07%-newNEW
RINGCENTRAL INCRNG$332.0K8,5170.06%-0.01pp11q+1.1%+$3.7K
VERICEL CORPVCEL$324.9K7,3030.06%-newNEW
BEYOND MEAT INC$286.0K381,2710.06%-newDEBT
PLANET LABS PBCPL$276.7K8,3520.05%flat2qHELD
ELECTROVAYA INCELVA$276.2K26,3070.05%+0.01pp2qHELD
REIN THERAPEUTICS INCRNTX$238.2K229,0700.05%-0.03pp11q-4.4%-$10.9K
RAMBUS INC DELRMBS$236.0K1,7780.05%-0.01pp4q-34.7%-$125.3K
BLACKSTONE INCBX$228.3K1,9400.04%-0.01pp3qHELD
MICROSOFT CORPMSFT$207.4K5560.04%-0.01pp16q+2.0%+$4.1K
ACTINIUM PHARMACEUTICALS INCATNM$178.5K182,1420.03%-0.01pp6q-9.5%-$18.8K
PATTERSON-UTI ENERGY INCPTEN$159.9K17,4200.03%-0.76pp12q-94.5%-$2.7M
REDHILL BIOPHARMA LTDRDHL$74.7K88,4050.01%flat4qHELD

By sector

Industry comes from the SIC code on each company's own SEC filings, which is self-reported and sometimes out of date. Derivative exposure is counted with the shares. Securities the SEC assigns no industry - funds, trusts, foreign issues - are shown as not classified rather than dropped.

Healthcare Services 24.1%Software & IT Services 19.9%Medical Devices 12.3%Retail & Consumer 9.3%Biotech & Pharma 7.0%Semiconductors & Electronics 5.5%Real Estate 4.9%Energy 4.7%Construction & Building 4.4%Wholesale & Distribution 1.9%Industrials 1.8%Other sectors 1.8%Not classified 2.5%
 
SectorValueShare
Healthcare Services$124.9M24.1%
Software & IT Services$103.1M19.9%
Medical Devices$63.6M12.3%
Retail & Consumer$48.3M9.3%
Biotech & Pharma$36.1M7.0%
Semiconductors & Electronics$28.5M5.5%
Real Estate$25.4M4.9%
Energy$24.2M4.7%
Construction & Building$22.8M4.4%
Wholesale & Distribution$9.7M1.9%
Industrials$9.5M1.8%
Other sectors$9.4M1.8%
Not classified$13.1M2.5%

Quarter by quarter

QuarterValuePositions NewAddedTrimmed ExitedTop 10 Days to file
Q2 2026$518.8M8342236647.7%36
Q1 2026$433.2M8563125747.1%22
Q4 2025$491.1M8622531248.2%44
Q3 2025$498.5M86924331048.3%34
Q2 2025$492.4M87129301249.2%23
Q1 2025$454.5M9884039146.6%39
Q4 2024$496.3M91329321448.3%24
Q3 2024$504.4M102112939649.3%43
Q2 2024$444.0M9763346746.4%45
Q1 2024$422.5M98636371047.3%43
Q4 2023$416.6M102132250848.3%45
Q3 2023$399.1M9773036746.4%45
Q2 2023$480.9M97537292045.7%39
Q1 2023$475.8M112133927645.0%10
Q4 2022$452.9M105102348647.3%38
Q3 2022$454.8M10173034745.7%45
Q2 2022$477.1M101853181044.6%32
Q1 2022$613.2M103966111147.5%39
Q4 2021$666.8M105550231245.3%39
Q3 2021$673.1M1121133221041.7%43
Q2 2021$704.3M111105116745.2%28
Q1 2021$656.7M1082144291246.8%44
Q4 2020$628.1M9975113650.7%43
Q3 2020$469.0M98102425247.4%43
Q2 2020$413.0M90816361447.7%44
Q1 2020$294.3M96112742849.6%41
Q4 2019$456.9M9399471143.7%45
Q3 2019$422.6M9532331542.2%39
Q2 2019$463.8M9733426343.2%43
Q1 2019$458.7M9794421542.7%43
Q4 2018$376.0M93000047.1%18

Rows marked UNVERIFIED ID, PLACEHOLDER ID, TICKER AS ID or NON-CUSIP ID carry an identifier that is not a valid CUSIP. They are shown because the filer reported that money, but treat the security named with caution - hover the chip for what is wrong with it, and see the methodology.

Held counts consecutive filings in which this manager reported the position, and can reach further back than the quarters listed above: the tabs begin at Q4 2018 because earlier coverage is too sparse to describe a market, but tenure is counted over every filing we hold, some reaching to 2007. A position sold and later rebought starts again from one.

Weight change is the shift in this position's share of the whole book, in percentage points. It is the more useful column: when money flows into or out of a broad fund, almost every holding is bought or sold at once, so added and trimmed largely track flows. A weight that rose while the book shrank is a decision. Both compare with the previous quarter this filer reported, not the previous calendar quarter.