Essex Investment Management Co LLC

Essex Investment Management Co LLC reported 301 holdings worth US$675M as of Sep 30, 2026 (Form 13F)

As of Sep 30, 2026 · Filed Oct 19, 2026

Essex Investment Management Co LLC reported 301 holdings worth US$675M as of Sep 30, 2026. Largest: Ligand Pharmaceuticals Incorporated, Adaptive Biotechnologies Corporation and Apple Inc. Filed Oct 19, 2026 (Form 13F).

Holdings
301
Value as reported
US$675M

The filing in full

CompanySharesValue as reported% of portfolio
Ligand Pharmaceuticals Incorporated38,917US$12.2M1.8%
Adaptive Biotechnologies Corporation402KUS$11.6M1.7%
Apple Inc31,084US$10.4M1.5%
Ceco Environmental Corp.146KUS$10.1M1.5%
Hci Group, Inc.54,282US$9.44M1.4%
Leonardo Drs, Inc.242KUS$8.88M1.3%
Mirum Pharmaceuticals, Inc.102KUS$8.69M1.3%
Cohu, Inc.127KUS$8.67M1.3%
Avepoint, Inc.552KUS$7.77M1.2%
Sterling Infrastructure, Inc.15,536US$7.64M1.1%
Travere Therapeutics, Inc.129KUS$7.62M1.1%
Brainsway Ltd575KUS$7.59M1.1%
Ge Vernova Inc.7,978US$7.58M1.1%
Nuvation Bio Inc.1.34MUS$7.53M1.1%
Werner Enterprises, Inc.221KUS$7.49M1.1%
Microsoft Corp.14,469US$7.42M1.1%
Frequency Electronics, Inc.86,267US$7.29M1.1%
Biodesix, Inc.235KUS$7M1.0%
Agnico Eagle Mines Limited37,195US$6.82M1.0%
Xeris Biopharma Holdings, Inc.693KUS$6.63M0.98%
Semtech Corporation37,026US$6.6M0.98%
Marvell Technology, Inc.24,845US$6.56M0.97%
Graham Corporation75,219US$6.49M0.96%
Amazon.com, Inc.25,879US$6.45M0.96%
Lantronix, Inc.890KUS$6.42M0.95%
Oceaneering International, Inc.146KUS$6.39M0.95%
Goldman Sachs Group, Inc. (the)7,069US$6.36M0.94%
Arteris, Inc.269KUS$6.36M0.94%
Kratos Defense & Security Solutions, Inc.148KUS$6.33M0.94%
Ouster, Inc.153KUS$6.17M0.91%
Asml Holding Nv3,394US$6.15M0.91%
Lincoln Educational Services Corporation278KUS$6.08M0.90%
American Superconductor Corporation205KUS$5.98M0.89%
Bluelinx Holdings Inc.83,955US$5.97M0.89%
Lsi Industries Inc.288KUS$5.97M0.88%
Precigen, Inc.683KUS$5.85M0.87%
Argan, Inc.15,016US$5.68M0.84%
908 Devices Inc.456KUS$5.62M0.83%
Xometry, Inc.54,162US$5.57M0.83%
Ambarella, Inc.77,245US$5.37M0.80%
Willdan Group, Inc.72,557US$5.36M0.79%
Patrick Industries, Inc.78,964US$5.35M0.79%
Gentherm Inc158KUS$5.27M0.78%
Mistras Group Inc249KUS$5.25M0.78%
Forum Energy Technologies, Inc.64,563US$5.23M0.77%
Red Violet, Inc.63,732US$5.04M0.75%
Advanced Drainage Systems, Inc.39,200US$4.97M0.74%
Si-bone, Inc.263KUS$4.95M0.73%
Concentra Group Holdings Parent, Inc.142KUS$4.89M0.72%
Insmed Incorporated41,471US$4.73M0.70%
Diodes Incorporated45,241US$4.38M0.65%
Mitek Systems, Inc.256KUS$4.36M0.65%
Information Services Group, Inc.784KUS$4.33M0.64%
Columbus Mckinnon Corporation270KUS$4.3M0.64%
Liquidity Services, Inc.100KUS$4.29M0.64%
Watts Water Technologies, Inc.11,985US$4.24M0.63%
Crowdstrike Holdings, Inc.16,017US$4.24M0.63%
Novanta Inc.29,696US$4.22M0.63%
Tetra Technologies, Inc.718KUS$4.21M0.62%
Amerant Bancorp Inc.146KUS$4.17M0.62%
Everus Construction Group, Inc.35,182US$4.13M0.61%
Park Aerospace Corp.139KUS$4.13M0.61%
Ibex Limited95,123US$4.12M0.61%
Interface, Inc.119KUS$4.11M0.61%
Mama's Creations, Inc.317KUS$4.08M0.61%
Griffon Corporation43,460US$4.04M0.60%
Mirion Technologies, Inc.285KUS$4.03M0.60%
Everpure, Inc.30,793US$4.03M0.60%
Johnson Outdoors Inc.91,310US$3.99M0.59%
Alpha Cognition Inc.423KUS$3.81M0.56%
Exzeo Group, Inc.256KUS$3.71M0.55%
Nvidia Corporation16,210US$3.7M0.55%
Globus Medical, Inc.49,303US$3.69M0.55%
Docebo, Inc.160KUS$3.69M0.55%
Orion Group Holdings, Inc.429KUS$3.67M0.54%
Lgi Homes, Inc.78,553US$3.66M0.54%
Daktronics, Inc.210KUS$3.65M0.54%
Zeta Global Holdings Corp.114KUS$3.59M0.53%
Bgc Group, Inc.311KUS$3.58M0.53%
Ocular Therapeutix, Inc.467KUS$3.58M0.53%
Arcutis Biotherapeutics, Inc.133KUS$3.51M0.52%
Innovative Solutions And Support, Inc.185KUS$3.43M0.51%
Fennec Pharmaceuticals Inc.319KUS$3.39M0.50%
Badger Meter, Inc.27,446US$3.39M0.50%
Coda Octopus Group, Inc.313KUS$3.35M0.50%
Bwx Technologies, Inc.24,473US$3.35M0.50%
Oceanfirst Financial Corp.199KUS$3.29M0.49%
Dollar Tree, Inc.28,367US$3.23M0.48%
Legacy Education Inc.321KUS$3.1M0.46%
Sprouts Farmers Market, Inc.45,830US$3.04M0.45%
Guidewire Software, Inc.20,237US$2.89M0.43%
Axsome Therapeutics, Inc.15,616US$2.88M0.43%
Lightpath Technologies, Inc.277KUS$2.86M0.42%
Baker Hughes Company52,020US$2.86M0.42%
Tonix Pharmaceuticals Holding Corp.292KUS$2.85M0.42%
Neuropace, Inc.202KUS$2.78M0.41%
The Realreal, Inc.311KUS$2.74M0.41%
Apyx Medical Corporation1.1MUS$2.7M0.40%
Energy Services Of America Corporation242KUS$2.7M0.40%
Tempus Ai, Inc.32,857US$2.69M0.40%

Every holding of Essex Investment Management Co LLC

Source

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