Essex Investment Management Co LLC

Investment Portfolio & 13F Holdings Analysis

About

ESSEX INVESTMENT MANAGEMENT CO LLC is an institutional investment manager that filed its latest Form 13F for 2025Q1, reporting 303 holdings worth $0.5 billion. Form 13F filings provide transparency into the equity holdings of institutional investment managers with over $100 million in assets under management. This page displays the most recent portfolio holdings, allowing investors to track position changes, new investments, and portfolio composition.

AI_NATIVE detailed information: This accession holds the following tickers:[
  "NVMI",
  "OCUL",
  "KNSA",
  "INSM",
  "ARQT",
  "GTES",
  "ITRI",
  "TEM",
  "MPWR",
  "MEG",
  "SMTC",
  "TRNS",
  "NOVT",
  "KTOS",
  "RRX",
  null,
  "STRL",
  "QTWO",
  "HP",
  "MP",
  "ASPN",
  "MU",
  "PATK",
  "ZS",
  "ABT",
  "APD",
  "MATX",
  "MTRX",
  "MRC",
  "MTSI",
  "ASGN",
  "PRCT",
  null,
  "AXP",
  "GDXJ",
  "ALKT",
  "ACA",
  "ASML",
  "AYI",
  "QDEL",
  "AMSC",
  "AIT",
  "AGX",
  "ACLS",
  "FWRD",
  "IAC",
  "LGND",
  "DUK",
  "NVEE",
  "OSPN",
  "NINE",
  "PRIM",
  "ECG",
  "EQNR",
  "AMBA",
  "UG",
  "TSEM",
  "NVCR",
  "CRNT",
  "FCX",
  "ADPT",
  "WLDN",
  "BGC",
  "NVRI",
  "TVTX",
  "AIRG",
  "APT",
  "ACNT",
  "AIP",
  "ANGO",
  "AWRE",
  "ATER",
  "AMPX",
  "BWAY",
  "BWEN",
  "INTU",
  "FIVE",
  "FNV",
  "UNP",
  "XPRO",
  "FTEK",
  "TARS",
  "GSIT",
  "HUBB",
  "RIVN",
  "LQDT",
  "LINC",
  "MIR",
  "MYO",
  "MDWD",
  "NXGL",
  "NUTX",
  "OSS",
  "OUST",
  "PAY",
  "PPIH",
  null,
  "PESI",
  "OWLT",
  "LUNG",
  "RPID",
  "PBPB",
  "RDCM",
  "PXLW",
  "RSSS",
  "RELL",
  "RDVT",
  "SMWB",
  "SIBN",
  "STXS",
  "TTI",
  "STRT",
  "STKL",
  "TACT",
  "UVE",
  "VTSI",
  null,
  "CXDO",
  "KGC",
  "CNVS",
  "MASS",
  "LPTH",
  "MMC",
  "PWR",
  "DRS",
  "MA",
  "EXEL",
  null,
  "BMI",
  "MSFT",
  "MS",
  "EVER",
  "EVR",
  "FLS",
  "GE",
  "GWRE",
  "NVS",
  "ADM",
  "ORCL",
  "PAYX",
  "PEP",
  "DOW",
  "AAPL",
  "ECL",
  "GS",
  "OGN",
  "PFE",
  "PG",
  "MRK",
  "VZ",
  "ROK",
  "SLB",
  "SRE",
  "SNA",
  "RIO",
  "BP",
  "UPS",
  "NEM",
  "DTM",
  "WMS",
  "NTIC",
  "ARLO",
  "DCBO",
  "DUOT",
  "PHR",
  "LYTS",
  "NPCE",
  "BMRC",
  "SIDU",
  "ACVA",
  "TRIP",
  "LNSR",
  "AMPG",
  "ACMR",
  "NTNX",
  "IWO",
  "GKOS",
  "GMED",
  "RVLV",
  "SNY",
  "GHM",
  "AIOT",
  "GLDD",
  "GFF",
  "DD",
  "TT",
  "GDYN",
  "LOPE",
  "HASI",
  null,
  "RRC",
  "MTDR",
  "RGLD",
  "THC",
  "WTS",
  "APH",
  "WAB",
  "DLTR",
  "GNRC",
  "WEC",
  "AJG",
  "WM",
  "FSLR",
  "BKR",
  "CGNT",
  "CLPT",
  "CODA",
  "ERII",
  "ESOA",
  "FVRR",
  "GNSS",
  "EOLS",
  "EYPT",
  "FSI",
  "EXTR",
  "GEOS",
  "IBEX",
  "INVE",
  null,
  "TILE",
  "IAS",
  "INTT",
  "EEFT",
  "LSF",
  "KELYA",
  "IEX",
  "AMZN",
  "ACIW",
  "ETON",
  "SG",
  "UPWK",
  "VLO",
  "VMI",
  "VLTO",
  "VERX",
  "V",
  "WYY",
  "WPM",
  "WMB",
  "XERS",
  "XYL",
  "ZETA",
  "DTE",
  "OLO",
  "OPXS",
  "G",
  "SITM",
  "AEM",
  null,
  "TER",
  "SO",
  "TRMB",
  "PPL",
  "CRM",
  "HCI",
  "FTDR",
  "LYB",
  "GEV",
  "PEGA",
  "NVT",
  "FDX",
  "AVNT",
  "ADP",
  "AXTA",
  "AVPT",
  null,
  "BRK-B",
  "BPMC",
  "BLND",
  "BMY",
  "BLDR",
  "BWXT",
  "CSTE",
  "CAMT",
  "CECO",
  "GTLS",
  "LNG",
  "CINF",
  "CWAN",
  "CLH",
  "KO",
  "CGNX",
  "CL",
  "CON",
  "STZ",
  "COST",
  "CVLG",
  "DAIO",
  "DAN",
  "DE",
  "DXCM",
  "NEE",
  "EPD",
  "DIS",
  "ETN",
  "GOOG",
  "XOM",
  "JNJ",
  "TSLA",
  "PM",
  "MLM",
  "VTI",
  "JPM"
]

Filing Details

13F-HR • 2025-03-31

SEC FilingSEC DataHachi Filing

Report Date: 2025-03-31
Filing Date: 2025-05-07
Total Holdings: 303
Total Value: 479358729
Accession Number: 0000201772-25-000005
Form Type: 13F-HR
CIK: essex-investment-management-co
Manager Name: Essex-Investment-Management-Co

Data Enrichment

97% identified

294 identified9 unidentified

Holdings

SEC FilingSEC DataHachi Filing

Manager:

303 positions • $479,358.729K total value

303 positions

Manager:

SEC FilingSEC DataHachi Filing

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HCI Group, Inc.

HCI|40416E103

Shares:77.9K

Value:$11.6M

KRATOS DEFENSE & SECURITY SOLUTIONS, INC.

KTOS|50077B207

Shares:354.7K

Value:$10.5M

Leonardo DRS, Inc.

DRS|52661A108

Shares:255.9K

Value:$8.4M

Apple Inc.

AAPL|037833100

Shares:37.6K

Value:$8.3M

NEXTERA ENERGY INC

NEE|65339F101

Shares:106.2K

Value:$7.5M

AvePoint, Inc.

AVPT|053604104

Shares:519.6K

Value:$7.5M

Guidewire Software, Inc.

GWRE|40171V100

Shares:38.8K

Value:$7.3M

MICROSOFT CORP

MSFT|594918104

Shares:18.8K

Value:$7.1M

AMERICAN SUPERCONDUCTOR CORP /DE/

AMSC|030111207

Shares:372.2K

Value:$6.8M

46116X101

Shares:49.7K

Value:$6.6M

LIGAND PHARMACEUTICALS INC

LGND|53220K504

Shares:61.7K

Value:$6.5M

TOWER SEMICONDUCTOR LTD

TSEM|M87915274

Shares:173.1K

Value:$6.2M

LINCOLN EDUCATIONAL SERVICES CORP

LINC|533535100

Shares:387.3K

Value:$6.1M

STERLING INFRASTRUCTURE, INC.

STRL|859241101

Shares:53.9K

Value:$6.1M

AMAZON COM INC

AMZN|023135106

Shares:30.3K

Value:$5.8M

Willdan Group, Inc.

WLDN|96924N100

Shares:137.1K

Value:$5.6M

Salesforce, Inc.

CRM|79466L302

Shares:19.9K

Value:$5.4M

INSMED Inc

INSM|457669307

Shares:66.8K

Value:$5.1M

GOLDMAN SACHS GROUP INC

GS|38141G104

Shares:9.1K

Value:$5.0M

ARGAN INC

AGX|04010E109

Shares:36.2K

Value:$4.7M

Instrument	Shares		Other Manager	Value
HCI Group, Inc.(HCIcusip40416E103)	77.9K	QoQ -5.42% (-4.5K) YoY -13.94% (-12.6K)	All Managers (Combined)	$11.6M	QoQ +21.11% (-$2.0M) YoY +10.63% (-$1.1M)
KRATOS DEFENSE & SECURITY SOLUTIONS, INC.(KTOScusip50077B207)	354.7K	QoQ -3.65% (-13.4K) YoY -0.41% (-1.5K)	All Managers (Combined)	$10.5M	QoQ +8.43% (-$819.4K) YoY +60.86% (-$4.0M)
Leonardo DRS, Inc.(DRScusip52661A108)	255.9K	QoQ -0.75% (-1.9K) YoY -21.54% (-70.3K)	All Managers (Combined)	$8.4M	QoQ +0.99% (-$82.9K) YoY +16.77% (-$1.2M)
Apple Inc.(AAPLcusip037833100)	37.6K	QoQ -9.80% (-4.1K) YoY -39.96% (-25.0K)	All Managers (Combined)	$8.3M	QoQ -19.99% (-$2.1M) YoY -22.23% (-$2.4M)
NEXTERA ENERGY INC(NEEcusip65339F101)	106.2K	QoQ -10.15% (-12.0K) YoY -21.12% (-28.4K)	All Managers (Combined)	$7.5M	QoQ -11.15% (-$945.2K) YoY -12.51% (-$1.1M)
AvePoint, Inc.(AVPTcusip053604104)	519.6K	QoQ -4.78% (-26.1K) YoY +123.13% (+286.8K)	All Managers (Combined)	$7.5M	QoQ -16.72% (-$1.5M) YoY +306.82% (+$5.7M)
Guidewire Software, Inc.(GWREcusip40171V100)	38.8K	QoQ -10.70% (-4.7K) YoY -25.84% (-13.5K)	All Managers (Combined)	$7.3M	QoQ -0.75% (-$55.7K) YoY +19.03% (-$1.2M)
MICROSOFT CORP(MSFTcusip594918104)	18.8K	QoQ -8.81% (-1.8K) YoY -26.44% (-6.8K)	All Managers (Combined)	$7.1M	QoQ -18.78% (-$1.6M) YoY -34.36% (-$3.7M)
AMERICAN SUPERCONDUCTOR CORP /DE/(AMSCcusip030111207)	372.2K	QoQ -13.41% (-57.7K) YoY -36.25% (-211.7K)	All Managers (Combined)	$6.8M	QoQ -36.22% (-$3.8M) YoY -14.40% (-$1.1M)
(cusip46116X101)✕	49.7K	QoQ -12.64% (-7.2K) YoY +3932.19% (+48.5K)	All Managers (Combined)	$6.6M	QoQ +37.97% (-$1.8M) YoY +7586.77% (+$6.5M)
LIGAND PHARMACEUTICALS INC(LGNDcusip53220K504)	61.7K	QoQ -5.43% (-3.5K) YoY NEW(+61.7K)	All Managers (Combined)	$6.5M	QoQ -7.20% (-$503.9K) YoY NEW(+$6.5M)
TOWER SEMICONDUCTOR LTD(TSEMcusipM87915274)	173.1K	QoQ -5.63% (-10.3K) YoY +4.86% (+8.0K)	All Managers (Combined)	$6.2M	QoQ -34.67% (-$3.3M) YoY +11.79% (+$651.1K)
LINCOLN EDUCATIONAL SERVICES CORP(LINCcusip533535100)	387.3K	QoQ -3.07% (-12.3K) YoY -7.85% (-33.0K)	All Managers (Combined)	$6.1M	QoQ -2.76% (-$175.1K) YoY +41.56% (-$1.8M)
STERLING INFRASTRUCTURE, INC.(STRLcusip859241101)	53.9K	QoQ +43.10% (-16.2K) YoY -2.24% (-1.2K)	All Managers (Combined)	$6.1M	QoQ -3.82% (-$242.9K) YoY +0.32% (-$20.0K)
AMAZON COM INC(AMZNcusip023135106)	30.3K	QoQ -9.56% (-3.2K) YoY -21.98% (-8.5K)	All Managers (Combined)	$5.8M	QoQ -21.57% (-$1.6M) YoY -17.71% (-$1.2M)
Willdan Group, Inc.(WLDNcusip96924N100)	137.1K	QoQ -0.66% (-917) YoY +1.29% (+1.8K)	All Managers (Combined)	$5.6M	QoQ +6.19% (-$325.6K) YoY +42.28% (+$1.7M)
Salesforce, Inc.(CRMcusip79466L302)	19.9K	QoQ -9.36% (-2.1K) YoY -25.95% (-7.0K)	All Managers (Combined)	$5.4M	QoQ -27.24% (-$2.0M) YoY -34.02% (-$2.8M)
INSMED Inc(INSMcusip457669307)	66.8K	QoQ -0.78% (-530) YoY -38.50% (-41.8K)	All Managers (Combined)	$5.1M	QoQ +9.63% (-$447.7K) YoY +72.92% (-$2.1M)
GOLDMAN SACHS GROUP INC(GScusip38141G104)	9.1K	QoQ -7.32% (-719) YoY -20.36% (-2.3K)	All Managers (Combined)	$5.0M	QoQ -11.59% (-$651.2K) YoY +4.15% (-$198.0K)
ARGAN INC(AGXcusip04010E109)	36.2K	QoQ -0.76% (-280) YoY NEW(+36.2K)	All Managers (Combined)	$4.7M	QoQ -5.01% (-$250.9K) YoY NEW(+$4.7M)