Essex Investment Management

Essex Investment Management as of Sept. 30, 2025

Portfolio Holdings for Essex Investment Management

Essex Investment Management holds 299 positions in its portfolio as reported in the September 2025 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Kratos Defense & Security Solutions (KTOS) 3.4 $22M 244k 91.37
Sterling Construction Company (STRL) 2.4 $16M 46k 339.68
American Superconductor (AMSC) 2.2 $15M 246k 59.39
Tower Semiconductor (TSEM) 2.2 $14M 196k 72.30
Insmed (INSM) 1.9 $13M 87k 144.01
D R S Technologies (DRS) 1.8 $12M 263k 45.40
Hci (HCI) 1.8 $12M 60k 191.93
Ligand Pharmaceuticals In (LGND) 1.7 $11M 61k 177.14
Kiniksa Pharmaceuticals Intl P Ord Shs Cl A (KNSA) 1.5 $9.6M 247k 38.83
Adaptive Biotechnologies Cor (ADPT) 1.5 $9.6M 639k 14.96
Microsoft Corporation (MSFT) 1.4 $9.5M 18k 517.95
Lincoln Educational Services Corporation (LINC) 1.4 $9.3M 397k 23.50
Apple (AAPL) 1.4 $9.2M 36k 254.63
Mirum Pharmaceuticals (MIRM) 1.3 $8.3M 114k 73.31
CECO Environmental (CECO) 1.2 $8.1M 158k 51.20
Graham Corporation (GHM) 1.2 $7.9M 144k 54.90
Apex Technology Acqui-cl A (AVPT) 1.2 $7.8M 518k 15.01
Argan (AGX) 1.2 $7.6M 28k 270.05
Willdan (WLDN) 1.2 $7.6M 79k 96.69
Primoris Services (PRIM) 1.2 $7.6M 55k 137.33
Amprius Technologies (AMPX) 1.1 $7.3M 697k 10.52
Mirion Technologies Inc - US (MIR) 1.1 $7.2M 311k 23.26
Goldman Sachs (GS) 1.1 $7.2M 9.0k 796.35
Globalstar (GSAT) 1.1 $7.1M 194k 36.39
Ambarella (AMBA) 1.1 $7.0M 85k 82.52
Agnico (AEM) 1.1 $6.9M 41k 168.56
LSI Industries (LYTS) 1.0 $6.5M 275k 23.61
Amazon (AMZN) 1.0 $6.4M 29k 219.57
Xeris Pharmaceuticals (XERS) 0.9 $6.1M 750k 8.14
Advanced Drain Sys Inc Del (WMS) 0.9 $5.9M 43k 138.70
Ge Vernova (GEV) 0.9 $5.8M 9.5k 614.90
Everquote Cl A Ord (EVER) 0.8 $5.4M 236k 22.87
Guidewire Software (GWRE) 0.8 $5.3M 23k 229.86
Bwx Technologies (BWXT) 0.8 $5.1M 28k 184.37
Clearpoint Neuro (CLPT) 0.8 $5.1M 233k 21.79
Ouster (OUST) 0.8 $5.0M 186k 27.05
Stereotaxis (STXS) 0.8 $5.0M 1.6M 3.11
Patrick Industries (PATK) 0.7 $4.8M 47k 103.43
(CXDO) 0.7 $4.8M 746k 6.50
Universal Insurance Holdings (UVE) 0.7 $4.8M 181k 26.30
Brainsway Adr (BWAY) 0.7 $4.7M 311k 15.07
Pegasystems (PEGA) 0.7 $4.6M 81k 57.50
Ocular Therapeutix (OCUL) 0.7 $4.6M 394k 11.69
salesforce (CRM) 0.7 $4.6M 19k 237.00
Harsco Corporation (NVRI) 0.7 $4.5M 352k 12.69
TETRA Technologies (TTI) 0.7 $4.5M 777k 5.75
Beta Bionics (BBNX) 0.7 $4.4M 223k 19.87
Penguin Solutions (PENG) 0.7 $4.4M 168k 26.28
908 Devices (MASS) 0.7 $4.3M 494k 8.76
Sunopta (STKL) 0.6 $4.1M 695k 5.86
Oceaneering International (OII) 0.6 $3.9M 159k 24.78
Cohu (COHU) 0.6 $3.9M 193k 20.33
Travere Therapeutics (TVTX) 0.6 $3.9M 162k 23.90
MaxLinear (MXL) 0.6 $3.9M 240k 16.08
Asml Holding N V Adr (ASML) 0.6 $3.7M 3.9k 968.09
Trimble Navigation (TRMB) 0.6 $3.7M 46k 81.65
Zscaler Incorporated (ZS) 0.6 $3.7M 12k 299.66
Great Lakes Dredge & Dock Corporation (GLDD) 0.6 $3.7M 309k 11.99
Arcutis Biotherapeutics (ARQT) 0.6 $3.7M 196k 18.85
AngioDynamics (ANGO) 0.6 $3.7M 327k 11.17
Semtech Corporation (SMTC) 0.6 $3.6M 51k 71.45
Onespan (OSPN) 0.6 $3.6M 228k 15.89
Griffon Corporation (GFF) 0.6 $3.6M 47k 76.15
Mamamancini's Holdings (MAMA) 0.5 $3.6M 342k 10.51
Similarweb (SMWB) 0.5 $3.5M 381k 9.30
Concentra Group Holdings Par (CON) 0.5 $3.4M 164k 20.93
Radcom (RDCM) 0.5 $3.4M 233k 14.49
Ceragon Networks (CRNT) 0.5 $3.3M 1.4M 2.33
Curiositystream (CURI) 0.5 $3.3M 622k 5.30
Everus Constr Group (ECG) 0.5 $3.3M 38k 85.75
Extreme Networks (EXTR) 0.5 $3.3M 159k 20.65
Arlo Technologies (ARLO) 0.5 $3.3M 193k 16.95
Bgc Group Inc Cl A (BGC) 0.5 $3.2M 339k 9.46
Red Violet (RDVT) 0.5 $3.2M 61k 52.25
Dollar Tree (DLTR) 0.5 $3.2M 34k 94.37
Frequency Electronics (FEIM) 0.5 $3.2M 93k 33.91
Si-bone (SIBN) 0.5 $3.1M 213k 14.72
InfuSystem Holdings (INFU) 0.5 $3.1M 300k 10.36
Montrose Environmental Group (MEG) 0.5 $3.1M 112k 27.46
Park Aerospace Corp. Cmn Pke (PKE) 0.5 $3.1M 150k 20.34
Worthington Industries (WOR) 0.5 $3.1M 55k 55.49
Evercore Partners (EVR) 0.5 $3.0M 9.0k 337.32
Globus Med Inc cl a (GMED) 0.5 $3.0M 53k 57.27
Liquidity Services (LQDT) 0.5 $3.0M 109k 27.43
Walt Disney Company (DIS) 0.5 $3.0M 26k 114.50
Arteris (AIP) 0.5 $3.0M 292k 10.10
Paymentus Holdings (PAY) 0.4 $2.9M 95k 30.60
Baker Hughes A Ge Company (BKR) 0.4 $2.9M 60k 48.72
Covenant Transportation (CVLG) 0.4 $2.9M 134k 21.66
Cs Disco (LAW) 0.4 $2.9M 444k 6.46
Transcat (TRNS) 0.4 $2.9M 39k 73.20
Legalzoom (LZ) 0.4 $2.8M 274k 10.38
Docebo (DCBO) 0.4 $2.8M 103k 27.33
Blend Labs (BLND) 0.4 $2.8M 765k 3.65
Matrix Service Company (MTRX) 0.4 $2.8M 213k 13.08
Blacksky Technology (BKSY) 0.4 $2.8M 137k 20.15
Kamada Ord Ils1.00 (KMDA) 0.4 $2.8M 396k 6.94
Aspen Aerogels (ASPN) 0.4 $2.7M 390k 6.96
Jazz Pharmaceuticals (JAZZ) 0.4 $2.7M 21k 131.80
Intuit (INTU) 0.4 $2.6M 3.8k 682.91
Orion Marine (ORN) 0.4 $2.6M 311k 8.32
Upwork (UPWK) 0.4 $2.6M 139k 18.57
Journey Med Corp (DERM) 0.4 $2.5M 354k 7.12
Range Resources (RRC) 0.4 $2.5M 67k 37.64
Phreesia (PHR) 0.4 $2.5M 105k 23.52
Zeta Global Holdings Corp (ZETA) 0.4 $2.5M 124k 19.87
Ibex (IBEX) 0.4 $2.4M 58k 40.52
Castellum (CTM) 0.4 $2.3M 2.2M 1.09
Paychex (PAYX) 0.3 $2.3M 18k 126.76
Neuropace (NPCE) 0.3 $2.2M 217k 10.31
Tempus Ai (TEM) 0.3 $2.2M 28k 80.71
American Vanguard (AVD) 0.3 $2.1M 372k 5.74
Energy Recovery (ERII) 0.3 $2.1M 138k 15.42
Riverview Ban (RVSB) 0.3 $2.1M 392k 5.37
Novanta (NOVT) 0.3 $2.1M 21k 100.15
First Solar (FSLR) 0.3 $2.0M 9.2k 220.53
FreightCar America (RAIL) 0.3 $2.0M 205k 9.78
Perma-fix Env. (PESI) 0.3 $2.0M 196k 10.10
Cheniere Energy (LNG) 0.3 $1.9M 8.3k 234.98
Gencor Industries (GENC) 0.3 $1.9M 130k 14.63
Exelixis (EXEL) 0.3 $1.9M 46k 41.30
Matador Resources (MTDR) 0.3 $1.8M 41k 44.93
Fiverr Intl Ltd ord (FVRR) 0.3 $1.8M 76k 24.41
Eyepoint Pharmaceuticals (EYPT) 0.3 $1.8M 128k 14.24
Expro Group Holdings Nv (XPRO) 0.3 $1.8M 151k 11.88
Cognex Corporation (CGNX) 0.3 $1.8M 39k 45.30
Builders FirstSource (BLDR) 0.3 $1.7M 14k 121.25
Haverty Furniture Companies (HVT) 0.3 $1.7M 76k 21.93
Aisp (AISP) 0.3 $1.7M 320k 5.17
Xylem (XYL) 0.3 $1.6M 11k 147.50
Valmont Industries (VMI) 0.2 $1.5M 3.9k 387.73
Nextera Energy (NEE) 0.2 $1.5M 20k 75.49
Procter & Gamble Company (PG) 0.2 $1.5M 9.5k 153.65
Identiv (INVE) 0.2 $1.4M 412k 3.45
Badger Meter (BMI) 0.2 $1.4M 7.9k 178.58
American Express Company (AXP) 0.2 $1.3M 4.0k 332.16
Arthur J. Gallagher & Co. (AJG) 0.2 $1.2M 3.9k 309.74
Samsara (IOT) 0.2 $1.1M 30k 37.25
Valero Energy Corporation (VLO) 0.2 $1.1M 6.3k 170.26
Proto Labs (PRLB) 0.2 $1.0M 21k 50.03
Aehr Test Systems (AEHR) 0.2 $1.0M 34k 30.11
Freightos LTD F (CRGO) 0.2 $1.0M 309k 3.30
Veralto Corp (VLTO) 0.2 $994k 9.3k 106.61
Air Products & Chemicals (APD) 0.1 $972k 3.6k 272.72
Coca-Cola Company (KO) 0.1 $949k 14k 66.32
JPMorgan Chase & Co. (JPM) 0.1 $922k 2.9k 315.43
Medtronic (MDT) 0.1 $919k 9.7k 95.24
Colgate-Palmolive Company (CL) 0.1 $910k 11k 79.94
Barrick Mining Corp (B) 0.1 $881k 27k 32.77
Martin Marietta Materials (MLM) 0.1 $840k 1.3k 630.28
Marsh & McLennan Companies (MMC) 0.1 $793k 3.9k 201.53
Pepsi (PEP) 0.1 $749k 5.3k 140.44
Kornit Digital (KRNT) 0.1 $730k 54k 13.50
Wheaton Precious Metals Corp (WPM) 0.1 $705k 6.3k 111.84
Franco-Nevada Corporation (FNV) 0.1 $700k 3.1k 222.91
ON Semiconductor (ON) 0.1 $673k 14k 49.31
Deere & Company (DE) 0.1 $671k 1.5k 457.26
Quanta Services (PWR) 0.1 $653k 1.6k 414.42
Nextracker (NXT) 0.1 $616k 8.3k 73.99
Copart (CPRT) 0.1 $615k 14k 44.97
M/a (MTSI) 0.1 $612k 4.9k 124.49
Aeva Technologies (AEVA) 0.1 $610k 42k 14.50
Verizon Communications (VZ) 0.1 $586k 13k 43.95
Fluence Energy (FLNC) 0.1 $574k 53k 10.80
Yaskawa Elec Corp 0.1 $569k 27k 21.38
Grand Canyon Education (LOPE) 0.1 $505k 2.3k 219.52
Rivian Automotive Inc Class A (RIVN) 0.1 $499k 34k 14.68
Acm Research (ACMR) 0.1 $461k 12k 39.13
Johnson & Johnson (JNJ) 0.1 $441k 2.4k 185.42
Eton Pharmaceuticals (ETON) 0.1 $439k 20k 21.73
LightPath Technologies (LPTH) 0.1 $413k 52k 7.93
Newmont Mining Corporation (NEM) 0.1 $400k 4.7k 84.31
Vanguard Index Fds Etf (VTI) 0.1 $396k 1.2k 328.17
Snap-on Incorporated (SNA) 0.1 $390k 1.1k 346.53
Lensar (LNSR) 0.1 $371k 30k 12.35
Novartis Adr (NVS) 0.1 $356k 2.8k 128.24
Amtech Systems (ASYS) 0.1 $350k 38k 9.26
Axcelis Technologies (ACLS) 0.1 $327k 3.4k 97.64
General Electric (GE) 0.0 $319k 1.1k 300.82
Camtek (CAMT) 0.0 $309k 2.9k 105.05
One Stop Systems (OSS) 0.0 $303k 57k 5.36
Optex Sys Hldgs (OPXS) 0.0 $298k 23k 12.89
Byd Adr (BYDDY) 0.0 $287k 20k 14.09
Strattec Security (STRT) 0.0 $286k 4.2k 68.06
Oracle Corporation (ORCL) 0.0 $281k 1.0k 281.24
Amplitech Group (AMPG) 0.0 $270k 69k 3.89
Cps Technologies (CPSH) 0.0 $265k 74k 3.57
Equinor Asa Adr (EQNR) 0.0 $263k 11k 24.38
Duke Energy (DUK) 0.0 $263k 2.1k 123.75
Geospace Technologies (GEOS) 0.0 $259k 14k 18.96
Sitime Corp (SITM) 0.0 $256k 850.00 301.31
Flexible Solutions International (FSI) 0.0 $253k 26k 9.64
Data I/O Corporation (DAIO) 0.0 $249k 75k 3.34
Widepoint Corp (WYY) 0.0 $248k 50k 4.95
Owlet (OWLT) 0.0 $242k 29k 8.47
TransAct Technologies Incorporated (TACT) 0.0 $235k 43k 5.42
Fuel Tech (FTEK) 0.0 $232k 77k 3.00
Southern Company (SO) 0.0 $227k 2.4k 94.77
Perma-pipe International (PPIH) 0.0 $223k 9.5k 23.43
Archer Daniels Midland Company (ADM) 0.0 $223k 3.7k 59.74
Abbott Laboratories (ABT) 0.0 $219k 1.6k 133.94
Tesla Motors (TSLA) 0.0 $210k 471.00 444.72
Rapid Micro Biosystems Inc-a (RPID) 0.0 $208k 62k 3.34
Automatic Data Processing (ADP) 0.0 $206k 701.00 293.50
Broadwind Energy (BWEN) 0.0 $199k 95k 2.10
Energy Services of America (ESOA) 0.0 $182k 18k 10.35
Genasys (GNSS) 0.0 $179k 73k 2.45
GSI Technology (GSIT) 0.0 $178k 48k 3.68
Costco Wholesale Corporation (COST) 0.0 $167k 180.00 925.63
Alpha Pro Tech (APT) 0.0 $165k 34k 4.79
Richardson Electronics (RELL) 0.0 $158k 16k 9.79
Synalloy Corporation (ACNT) 0.0 $155k 12k 12.88
Duos Technologies Group (DUOT) 0.0 $141k 19k 7.36
Exxon Mobil Corporation (XOM) 0.0 $140k 1.2k 112.75
Optical Cable Corporation (OCC) 0.0 $135k 17k 8.12
Applied Industrial Technologies (AIT) 0.0 $132k 505.00 261.05
Waste Management (WM) 0.0 $125k 567.00 220.83
Laser Photonics Corp (LASE) 0.0 $118k 27k 4.31
Nephros (NEPH) 0.0 $117k 25k 4.73
Coda Octopus Group (CODA) 0.0 $116k 14k 8.03
Senestech (SNES) 0.0 $115k 26k 4.39
NOVA MEASURING Instruments L (NVMI) 0.0 $115k 359.00 319.66
Monolithic Power Systems (MPWR) 0.0 $111k 120.00 920.64
Laird Superfood (LSF) 0.0 $110k 20k 5.58
Aware (AWRE) 0.0 $104k 43k 2.41
Matson (MATX) 0.0 $104k 1.1k 98.59
Ocean Pwr Technologies (OPTT) 0.0 $103k 205k 0.50
DTE Energy Company (DTE) 0.0 $103k 728.00 141.43
Airgain (AIRG) 0.0 $99k 23k 4.34
Merck & Co (MRK) 0.0 $95k 1.1k 83.93
Nexgel (NXGL) 0.0 $93k 38k 2.44
Cincinnati Financial Corporation (CINF) 0.0 $87k 549.00 158.10
Nvent Electric Plc Voting equities (NVT) 0.0 $83k 842.00 98.64
Alphabet Inc Class C cs (GOOG) 0.0 $78k 320.00 243.55
Northern Technologies International (NTIC) 0.0 $78k 10k 7.71
Cineverse Corp (CNVS) 0.0 $75k 22k 3.36
Wabtec Corporation (WAB) 0.0 $73k 362.00 200.47
Q2 Holdings (QTWO) 0.0 $71k 974.00 72.39
Royal Gold (RGLD) 0.0 $68k 338.00 200.58
Virtra Inc Com Par (VTSI) 0.0 $68k 13k 5.26
Kinross Gold Corp (KGC) 0.0 $66k 2.7k 24.85
Philip Morris International (PM) 0.0 $65k 402.00 162.20
Workiva Inc equity us cm (WK) 0.0 $63k 728.00 86.08
Morgan Stanley (MS) 0.0 $58k 363.00 158.96
Dupont De Nemours (DD) 0.0 $56k 715.00 77.90
United-Guardian (UG) 0.0 $55k 7.0k 7.86
Freeport-McMoRan Copper & Gold (FCX) 0.0 $51k 1.3k 39.22
Bristol Myers Squibb (BMY) 0.0 $51k 1.1k 45.10
Glaukos (GKOS) 0.0 $50k 611.00 81.55
Gates Industrial Corpratin P ord (GTES) 0.0 $50k 2.0k 24.82
Wec Energy Group (WEC) 0.0 $49k 430.00 114.59
PPL Corporation (PPL) 0.0 $46k 1.2k 37.16
Acuity Brands (AYI) 0.0 $45k 131.00 344.39
Itron (ITRI) 0.0 $45k 362.00 124.56
Clean Harbors (CLH) 0.0 $45k 193.00 232.22
Amkor Technology (AMKR) 0.0 $43k 1.5k 28.40
Williams Companies (WMB) 0.0 $43k 680.00 63.35
Dt Midstream (DTM) 0.0 $41k 364.00 113.06
Enterprise Products Partners (EPD) 0.0 $40k 1.3k 31.27
Alkami Technology (ALKT) 0.0 $39k 1.6k 24.84
Axsome Therapeutics (AXSM) 0.0 $39k 317.00 121.45
Berkshire Hathaway (BRK.B) 0.0 $38k 76.00 502.74
Rio Tinto Adr (RIO) 0.0 $37k 567.00 66.01
Flowserve Corporation (FLS) 0.0 $37k 697.00 53.14
Nutanix Inc cl a (NTNX) 0.0 $36k 477.00 74.39
Sempra Energy (SRE) 0.0 $35k 390.00 89.98
Genpact (G) 0.0 $35k 823.00 41.89
United Parcel Service (UPS) 0.0 $34k 404.00 83.53
Dana Holding Corporation (DAN) 0.0 $33k 1.7k 20.04
Eaton (ETN) 0.0 $33k 88.00 374.25
Remitly Global (RELY) 0.0 $33k 2.0k 16.30
Ishares Silver Tr Etf (SLV) 0.0 $33k 771.00 42.37
Clearw.a.hld. (CWAN) 0.0 $33k 1.8k 18.02
Visa (V) 0.0 $31k 92.00 341.38
Arcosa (ACA) 0.0 $31k 331.00 93.71
Avient Corp (AVNT) 0.0 $30k 915.00 32.95
Micron Technology (MU) 0.0 $26k 153.00 167.32
Tripadvisor (TRIP) 0.0 $25k 1.5k 16.26
Rockwell Automation (ROK) 0.0 $25k 70.00 349.53
Trane Technologies (TT) 0.0 $24k 57.00 421.96
Constellation Brands (STZ) 0.0 $24k 178.00 134.67
BP Adr (BP) 0.0 $23k 662.00 34.46
Ecolab (ECL) 0.0 $23k 83.00 273.86
Five Below (FIVE) 0.0 $21k 137.00 154.70
Amphenol Corporation (APH) 0.0 $21k 168.00 123.75
Teradyne (TER) 0.0 $20k 145.00 137.64
Schlumberger (SLB) 0.0 $18k 514.00 34.37
Iac Interactivecorp (IAC) 0.0 $17k 486.00 34.07
Helmerich & Payne (HP) 0.0 $16k 733.00 22.09
Angi Inc Cl A (ANGI) 0.0 $16k 984.00 16.26
Vaneck Etf Trust Etf (GDXJ) 0.0 $15k 156.00 99.03
Regal-beloit Corporation (RRX) 0.0 $14k 100.00 143.44
Sandoz Group (SDZNY) 0.0 $12k 203.00 59.63
FedEx Corporation (FDX) 0.0 $11k 45.00 235.80
Sanofi Sa Adr (SNY) 0.0 $9.4k 200.00 47.20
Union Pacific Corporation (UNP) 0.0 $8.3k 35.00 236.37
Watts Water Technologies (WTS) 0.0 $1.4k 5.00 279.20
Industries N shs - a - (LYB) 0.0 $1.2k 25.00 49.04
Organon & Co (OGN) 0.0 $117.000400 11.00 10.64