13F GuideFiling Basics
What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
AlphaSMO Research GuideRead Guide
CIK: 0000201772
Total reported value
$763.4M
$763.4M
303 檔
6.1%
According to the latest 13F quarterly dataset, Essex Investment Management Co LLC managed an equity portfolio of $763.4M at the end of Q1 2025, spanning 303 distinct U.S. exchange-listed positions.
In Q1 2025, Essex Investment Management Co LLC displayed an active expansion posture, initiating 50 new positions and adding to 0 existing holdings, outstripping position reductions.
In terms of portfolio concentration, the top 5 core holdings (including HCI, KTOS, DRS) accounted for 6.1% of total reported equity market value during Q1 2025.
Top New Position Initiated
HCI
市值: $11.6M
Showing top 200 holdings (of 303 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | HCI | Hci Group Inc | Stock-Other | 2.42% | -0.12% | -5.42% | |
| 2 | KTOS | Kratos Defense & Security | Stock-Industrials | 2.20% | -0.77% | -3.65% | |
| 3 | DRS | Leonardo Drs Inc | Stock-Industrials | 1.75% | -0.44% | -0.76% | |
| 4 | AAPL | Apple Inc | Stock-Tech | 1.74% | -0.08% | -9.81% | |
| 5 | NEE | Nextera Energy Inc | Stock-Utilities | 1.57% | -0.04% | -10.15% | |
| 6 | AVPT | Avepoint Inc | Stock-Other | 1.57% | +0.09% | -4.79% | |
| 7 | GWRE | Guidewire Software Inc | Stock-Tech | 1.52% | -0.16% | -10.71% | |
| 8 | MSFT | Microsoft CORP | Stock-Tech | 1.47% | -0.16% | -8.81% | |
| 9 | AMSC | American Superconductor CORP | Stock-Other | 1.41% | -0.01% | -13.41% | |
| 10 | ITCIEUR | Intra-cellular Therapies Inc | Stock-Other | 1.37% | — | -12.65% | |
| 11 | LGND | Ligand Pharmaceuticals | Stock-Healthcare | 1.35% | -0.05% | -5.43% | |
| 12 | TSEM | Tower Semiconductor Ltd. | Stock-Tech | 1.29% | +0.38% | -5.63% | |
| 13 | LINC | Lincoln Educational Services | Stock-Other | 1.28% | -0.07% | -3.08% | |
| 14 | STRL | Sterling Infrastructure Inc | Stock-Industrials | 1.27% | -0.29% | +43.10% | |
| 15 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 1.20% | -0.06% | -9.56% | |
| 16 | WLDN | Willdan Group Inc | Stock-Other | 1.16% | -0.17% | -0.66% | |
| 17 | CRM | Salesforce Inc | Stock-Tech | 1.12% | -0.53% | EXIT | |
| 18 | INSM | Insmed Inc | Stock-Healthcare | 1.06% | -1.02% | -0.79% | |
| 19 | GS | Goldman Sachs Group Inc | Stock-Financials | 1.04% | -0.01% | -7.33% | |
| 20 | AGX | Argan Inc | Stock-Industrials | 0.99% | +0.23% | -0.77% | |
| 21 | ADPT | Adaptive Biotechnologies | Stock-Other | 0.96% | +0.25% | -0.66% | |
| 22 | AEM | Agnico Eagle Mines LTD | Stock-Materials | 0.96% | -0.46% | -6.86% | |
| 23 | TVTX | Travere Therapeutics Inc | Stock-Other | 0.95% | +0.24% | — | |
| 24 | LYTS | Lsi Industries Inc | Stock-Other | 0.95% | +0.22% | -0.65% | |
| 25 | MIR | Mirion Technologies Inc | Stock-Industrials | 0.91% | -0.22% | -0.78% | |
| 26 | EVER | Everquote Inc - Class A | Stock-Other | 0.91% | -0.53% | EXIT | |
| 27 | AMBA | Ambarella, Inc. | Stock-Tech | 0.91% | +0.23% | -4.52% | |
| 28 | UVE | Universal Insurance Holdings | Stock-Other | 0.87% | — | -0.77% | |
| 29 | NUTX | Nutex Health Inc | Stock-Other | 0.86% | — | -17.57% | |
| 30 | GMED | Globus Medical Inc - A | Stock-Healthcare | 0.85% | -0.17% | -12.46% | |
| 31 | GHM | Graham CORP | Stock-Other | 0.84% | -0.09% | -0.61% | |
| 32 | XERS | Xeris Biopharma Holdings Inc | Stock-Other | 0.84% | +0.05% | +53.79% | |
| 33 | PATK | Patrick Industries Inc | Stock-Consumer Disc | 0.82% | +0.17% | -4.01% | |
| 34 | CLPT | Clearpoint Neuro Inc | Stock-Other | 0.81% | — | -19.90% | |
| 35 | GNRC | Generac Holdings Inc | Stock-Industrials | 0.81% | — | -11.80% | |
| 36 | IEX | Idex CORP | Stock-Industrials | 0.80% | — | -10.89% | |
| 37 | KNSA | Kiniksa Pharmaceuticals International, plc | Stock-Other | 0.80% | +0.12% | -0.65% | |
| 38 | PAY | Paymentus Holdings Inc-a | Stock-Other | 0.80% | -0.09% | -0.64% | |
| 39 | MYO | Myomo Inc | Stock-Other | 0.79% | — | -0.77% | |
| 40 | 2655787D | Blueprint Medicines CORP | Stock-Other | 0.77% | — | -9.21% | |
| 41 | PRIM | Primoris Services CORP | Stock-Industrials | 0.75% | -1.09% | EXIT | |
| 42 | CXDO | Crexendo Inc | Stock-Other | 0.74% | -0.03% | -0.77% | |
| 43 | CECO | Ceco Environmental CORP | Stock-Other | 0.73% | +0.31% | -0.77% | |
| 44 | STKL | Sunopta Inc | Stock-Other | 0.71% | — | -3.46% | |
| 45 | OSPN | Onespan Inc | Stock-Other | 0.71% | — | -0.77% | |
| 46 | GFF | Griffon CORP | Stock-Industrials | 0.69% | +0.03% | -0.78% | |
| 47 | LQDT | Liquidity Services Inc | Stock-Other | 0.68% | +0.01% | -0.77% | |
| 48 | THC | Tenet Healthcare CORP | Stock-Healthcare | 0.67% | — | +9.35% | |
| 49 | RRC | Range Resources CORP | Stock-Energy | 0.65% | — | +7072.04% | |
| 50 | 37M | Mrc Global Inc | Stock-Other | 0.64% | — | -0.66% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | HCI | Hci Group Inc | — | NEW | New buy |
| 2 | KTOS | Kratos Defense & Security | — | NEW | New buy |
| 3 | DRS | Leonardo Drs Inc | — | NEW | New buy |
| 4 | AAPL | Apple Inc | — | NEW | New buy |
| 5 | NEE | Nextera Energy Inc | — | NEW | New buy |
| 6 | AVPT | Avepoint Inc | — | NEW | New buy |
| 7 | GWRE | Guidewire Software Inc | — | NEW | New buy |
| 8 | MSFT | Microsoft CORP | — | NEW | New buy |
| 9 | AMSC | American Superconductor CORP | — | NEW | New buy |
| 10 | ITCIEUR | Intra-cellular Therapies Inc | — | NEW | New buy |
| 11 | LGND | Ligand Pharmaceuticals | — | NEW | New buy |
| 12 | TSEM | Tower Semiconductor Ltd. | — | NEW | New buy |
| 13 | LINC | Lincoln Educational Services | — | NEW | New buy |
| 14 | STRL | Sterling Infrastructure Inc | — | NEW | New buy |
| 15 | AMZN | Amazon.com Inc | — | NEW | New buy |
| 16 | WLDN | Willdan Group Inc | — | NEW | New buy |
| 17 | CRM | Salesforce Inc | — | NEW | New buy |
| 18 | INSM | Insmed Inc | — | NEW | New buy |
| 19 | GS | Goldman Sachs Group Inc | — | NEW | New buy |
| 20 | AGX | Argan Inc | — | NEW | New buy |
| 21 | ADPT | Adaptive Biotechnologies | — | NEW | New buy |
| 22 | AEM | Agnico Eagle Mines LTD | — | NEW | New buy |
| 23 | TVTX | Travere Therapeutics Inc | — | NEW | New buy |
| 24 | LYTS | Lsi Industries Inc | — | NEW | New buy |
| 25 | MIR | Mirion Technologies Inc | — | NEW | New buy |
| 26 | EVER | Everquote Inc - Class A | — | NEW | New buy |
| 27 | AMBA | Ambarella, Inc. | — | NEW | New buy |
| 28 | UVE | Universal Insurance Holdings | — | NEW | New buy |
| 29 | NUTX | Nutex Health Inc | — | NEW | New buy |
| 30 | GMED | Globus Medical Inc - A | — | NEW | New buy |
| 31 | GHM | Graham CORP | — | NEW | New buy |
| 32 | XERS | Xeris Biopharma Holdings Inc | — | NEW | New buy |
| 33 | PATK | Patrick Industries Inc | — | NEW | New buy |
| 34 | CLPT | Clearpoint Neuro Inc | — | NEW | New buy |
| 35 | GNRC | Generac Holdings Inc | — | NEW | New buy |
| 36 | IEX | Idex CORP | — | NEW | New buy |
| 37 | KNSA | Kiniksa Pharmaceuticals International, plc | — | NEW | New buy |
| 38 | PAY | Paymentus Holdings Inc-a | — | NEW | New buy |
| 39 | MYO | Myomo Inc | — | NEW | New buy |
| 40 | 2655787D | Blueprint Medicines CORP | — | NEW | New buy |
| 41 | PRIM | Primoris Services CORP | — | NEW | New buy |
| 42 | CXDO | Crexendo Inc | — | NEW | New buy |
| 43 | CECO | Ceco Environmental CORP | — | NEW | New buy |
| 44 | STKL | Sunopta Inc | — | NEW | New buy |
| 45 | OSPN | Onespan Inc | — | NEW | New buy |
| 46 | GFF | Griffon CORP | — | NEW | New buy |
| 47 | LQDT | Liquidity Services Inc | — | NEW | New buy |
| 48 | THC | Tenet Healthcare CORP | — | NEW | New buy |
| 49 | RRC | Range Resources CORP | — | NEW | New buy |
| 50 | 37M | Mrc Global Inc | — | 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 303 disclosed positions in Q1 2025.
During Q1 2025, Essex Investment Management Co LLC's top holdings by market value included HCI (2.4%)、KTOS (2.2%)、DRS (1.8%). The largest single position, HCI, represented 2.4% of total portfolio value.
In Q1 2025, Essex Investment Management Co LLC made 50 total portfolio adjustments, initiating 50 new buys, adding to 0 positions, trimming 0 holdings, and fully liquidating 0 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.
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.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.