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CIK: 0000201772
Total reported value
$763.4M
$763.4M
299 檔
10.4%
As reported in its official Q3 2025 Form 13F filing, Essex Investment Management Co LLC's tracked investment portfolio stood at $763.4M with 299 total positions.
In Q3 2025, Essex Investment Management Co LLC displayed an active expansion posture, initiating 17 new positions and adding to 12 existing holdings, outstripping position reductions.
Showing top 200 holdings (of 299 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | KTOS | Kratos Defense & Security | Stock-Industrials | 3.41% | -0.77% | -30.34% | |
| 2 | STRL | Sterling Infrastructure Inc | Stock-Industrials | 2.37% | -0.29% | -14.09% | |
| 3 | AMSC | American Superconductor CORP | Stock-Other | 2.23% | -0.01% | -29.03% | |
| 4 | TSEM | Tower Semiconductor Ltd. | Stock-Tech | 2.17% | +0.38% | +0.53% | |
| 5 | INSM | Insmed Inc | Stock-Healthcare | 1.92% | -1.02% | +31.25% | |
| 6 | DRS | Leonardo Drs Inc | Stock-Industrials | 1.82% | -0.44% | +3.35% | |
| 7 | HCI | Hci Group Inc | Stock-Other | 1.77% | -0.12% | +0.56% | |
| 8 | LGND | Ligand Pharmaceuticals | Stock-Healthcare | 1.66% | -0.05% | +0.55% | |
| 9 | KNSA | Kiniksa Pharmaceuticals International, plc | Stock-Other | 1.47% | +0.12% | +44.25% | |
| 10 | ADPT | Adaptive Biotechnologies | Stock-Other | 1.46% | +0.25% | +3.43% | |
| 11 | MSFT | Microsoft CORP | Stock-Tech | 1.45% | -0.16% | -1.19% | |
| 12 | LINC | Lincoln Educational Services | Stock-Other | 1.43% | -0.07% | +3.33% | |
| 13 | AAPL | Apple Inc | Stock-Tech | 1.41% | -0.08% | -1.06% | |
| 14 | MIRM | Mirum Pharmaceuticals Inc | Stock-Other | 1.27% | +0.04% | +0.64% | |
| 15 | CECO | Ceco Environmental CORP | Stock-Other | 1.24% | +0.31% | +3.43% | |
| 16 | GHM | Graham CORP | Stock-Other | 1.21% | -0.09% | +3.43% | |
| 17 | AVPT | Avepoint Inc | Stock-Other | 1.19% | +0.09% | +1.08% | |
| 18 | AGX | Argan Inc | Stock-Industrials | 1.17% | +0.23% | +3.59% | |
| 19 | WLDN | Willdan Group Inc | Stock-Other | 1.17% | -0.17% | -26.40% | |
| 20 | PRIM | Primoris Services CORP | Stock-Industrials | 1.16% | -1.09% | EXIT | |
| 21 | AMPX | Amprius Technologies Inc | Stock-Other | 1.12% | -0.67% | -31.99% | |
| 22 | MIR | Mirion Technologies Inc | Stock-Industrials | 1.11% | -0.22% | +3.56% | |
| 23 | GS | Goldman Sachs Group Inc | Stock-Financials | 1.10% | -0.01% | -1.71% | |
| 24 | GSAT | Globalstar Inc | Stock-Other | 1.08% | -1.74% | EXIT | |
| 25 | AMBA | Ambarella, Inc. | Stock-Tech | 1.08% | +0.23% | +1.03% | |
| 26 | AEM | Agnico Eagle Mines LTD | Stock-Materials | 1.05% | -0.46% | -1.09% | |
| 27 | LYTS | Lsi Industries Inc | Stock-Other | 0.99% | +0.22% | +3.35% | |
| 28 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 0.98% | -0.06% | -1.06% | |
| 29 | XERS | Xeris Biopharma Holdings Inc | Stock-Other | 0.93% | +0.05% | +3.34% | |
| 30 | WMS | Advanced Drainage Systems In | Stock-Industrials | 0.91% | -0.05% | +345.74% | |
| 31 | GEV | GE Vernova Inc | Stock-Industrials | 0.89% | +0.12% | -34.53% | |
| 32 | EVER | Everquote Inc - Class A | Stock-Other | 0.83% | -0.53% | EXIT | |
| 33 | GWRE | Guidewire Software Inc | Stock-Tech | 0.81% | -0.16% | -1.56% | |
| 34 | BWXT | Bwx Technologies Inc | Stock-Industrials | 0.78% | -0.18% | -1.59% | |
| 35 | CLPT | Clearpoint Neuro Inc | Stock-Other | 0.78% | — | -28.56% | |
| 36 | OUST | Ouster Inc | Stock-Other | 0.77% | +1.31% | -25.79% | |
| 37 | STXS | Stereotaxis Inc | Stock-Other | 0.76% | -0.12% | +3.45% | |
| 38 | PATK | Patrick Industries Inc | Stock-Consumer Disc | 0.74% | +0.17% | +1.78% | |
| 39 | CXDO | Crexendo Inc | Stock-Other | 0.74% | -0.03% | +3.28% | |
| 40 | UVE | Universal Insurance Holdings | Stock-Other | 0.73% | — | +3.33% | |
| 41 | BWAY | Brainsway Ltd-adr | Stock-Other | 0.72% | -0.10% | +3.24% | |
| 42 | PEGA | Pegasystems Inc | Stock-Tech | 0.71% | -0.24% | -1.60% | |
| 43 | OCUL | Ocular Therapeutix Inc | Stock-Other | 0.71% | +0.09% | +3.27% | |
| 44 | CRM | Salesforce Inc | Stock-Tech | 0.70% | -0.53% | EXIT | |
| 45 | HA7 | Enviri CORP | Stock-Other | 0.68% | — | +3.38% | |
| 46 | TTI | Tetra Technologies Inc | Stock-Other | 0.68% | +0.06% | +3.34% | |
| 47 | BBNX | Beta Bionics Inc | Stock-Other | 0.68% | — | — | |
| 48 | PENG | Penguin Solutions Inc | Stock-Other | 0.68% | — | — | |
| 49 | MASS | 908 Devices Inc | Stock-Other | 0.66% | +0.06% | +3.48% | |
| 50 | STKL | Sunopta Inc | Stock-Other | 0.62% | — | +1.98% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | KTOS | Kratos Defense & Security | +1.2% | -30.34% | Trim |
| 2 | STRL | Sterling Infrastructure Inc | +1.1% | -14.09% | Trim |
| 3 | TSEM | Tower Semiconductor Ltd. | +0.9% | +0.53% | Add |
| 4 | INSM | Insmed Inc | +0.9% | +31.25% | Add |
| 5 | AMSC | American Superconductor CORP | +0.8% | -29.03% | Trim |
| 6 | KNSA | Kiniksa Pharmaceuticals International, plc | +0.7% | +44.25% | Add |
| 7 | AMPX | Amprius Technologies Inc | +0.6% | -31.99% | Trim |
| 8 | WMS | Advanced Drainage Systems In | +0.6% | +345.74% | Add |
| 9 | CECO | Ceco Environmental CORP | +0.5% | +3.43% | Add |
| 10 | ADPT | Adaptive Biotechnologies | +0.5% | +3.43% | Add |
| 11 | PRIM | Primoris Services CORP | +0.4% | -1.34% | Trim |
| 12 | GEV | GE Vernova Inc | +0.4% | -34.53% | Add |
| 13 | GHM | Graham CORP | +0.4% | +3.43% | Add |
| 14 | BWXT | Bwx Technologies Inc | +0.3% | -1.59% | Add |
| 15 | LGND | Ligand Pharmaceuticals | +0.3% | +0.55% | Trim |
| 16 | MIR | Mirion Technologies Inc | +0.2% | +3.56% | Add |
| 17 | AGX | Argan Inc | +0.2% | +3.59% | Trim |
| 18 | LINC | Lincoln Educational Services | +0.2% | +3.33% | Add |
| 19 | DRS | Leonardo Drs Inc | +0.1% | +3.35% | Add |
| 20 | NEE | Nextera Energy Inc | -1.3% | -75.44% | Trim |
| 21 | MIRM | Mirum Pharmaceuticals Inc | — | NEW | New buy |
| 22 | GSAT | Globalstar Inc | — | NEW | New buy |
| 23 | ITCIEUR | Intra-cellular Therapies Inc | — | EXIT | Sold out |
| 24 | BBNX | Beta Bionics Inc | — | NEW | New buy |
| 25 | PENG | Penguin Solutions Inc | — | NEW | New buy |
| 26 | NUTX | Nutex Health Inc | — | EXIT | Sold out |
| 27 | OII | Oceaneering Intl Inc | — | NEW | New buy |
| 28 | COHU | Cohu Inc | — | NEW | New buy |
| 29 | GNRC | Generac Holdings Inc | — | EXIT | Sold out |
| 30 | MXL | Maxlinear Inc | — | NEW | New buy |
| 31 | IEX | Idex CORP | — | EXIT | Sold out |
| 32 | MYO | Myomo Inc | — | EXIT | Sold out |
| 33 | 2655787D | Blueprint Medicines CORP | — | EXIT | Sold out |
| 34 | MAMA | Mama's Creations Inc | — | NEW | New buy |
| 35 | CURI | Curiositystream Inc | — | NEW | New buy |
| 36 | THC | Tenet Healthcare CORP | — | EXIT | Sold out |
| 37 | FEIM | Frequency Electronics Inc | — | NEW | New buy |
| 38 | INFU | Infusystem Holdings Inc | — | NEW | New buy |
| 39 | 37M | Mrc Global Inc | — | EXIT | Sold out |
| 40 | PKE | Park Aerospace CORP | — | NEW | New buy |
| 41 | WOR | Worthington Enterprises Inc | — | NEW | New buy |
| 42 | BMRC | Bank Of Marin Bancorp/ca | — | EXIT | Sold out |
| 43 | PFE | Pfizer Inc | — | EXIT | Sold out |
| 44 | LAW | Cs Disco Inc | — | NEW | New buy |
| 45 | LZ | Legalzoomcom Inc | — | NEW | New buy |
| 46 | BIRD | Smartbird, Inc | — | EXIT | Sold out |
| 47 | TILE | Interface Inc | — | EXIT | Sold out |
| 48 | TARS | Tarsus Pharmaceuticals Inc | — | EXIT | Sold out |
| 49 | BKSY | Blacksky Technology Inc | — | NEW | New buy |
| 50 | ✓ | — | NEW | New buy |
According to official SEC Form 13F filings, Essex Investment Management Co LLC reported a total U.S. public equity portfolio value of $763.4M across 299 disclosed positions in Q3 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including KTOS, STRL, AMSC) accounted for 10.4% of total reported equity market value during Q3 2025.
Top New Position Initiated
MIRM
市值: $8.3M
Top Position Liquidated / Trimmed
ITCIEUR
前期市值: $6.6M
During Q3 2025, Essex Investment Management Co LLC's top holdings by market value included KTOS (3.4%)、STRL (2.4%)、AMSC (2.2%). The largest single position, KTOS, represented 3.4% of total portfolio value.
In Q3 2025, Essex Investment Management Co LLC made 50 total portfolio adjustments, initiating 17 new buys, adding to 12 positions, trimming 8 holdings, and fully liquidating 13 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
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