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Latest ESSEX INVESTMENT MANAGEMENT CO LLC Stock Portfolio

ESSEX INVESTMENT MANAGEMENT CO LLC Performance:
2025 Q3: 15.9%YTD: 27.76%2024: 24.32%
Performance for 2025 Q3 is 15.9%, and YTD is 27.76%, and 2024 is 24.32%.

About ESSEX INVESTMENT MANAGEMENT CO LLC and 13F Hedge Fund Stock Holdings

ESSEX INVESTMENT MANAGEMENT CO LLC is a hedge fund based in BOSTON, MA. On 31-Mar-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $627.1 Millions. In it's latest 13F Holdings report, ESSEX INVESTMENT MANAGEMENT CO LLC reported an equity portfolio of $653.4 Millions as of 30 Sep, 2025.

The top stock holdings of ESSEX INVESTMENT MANAGEMENT CO LLC are KTOS, STRL, AMSC. The fund has invested 3.4% of it's portfolio in KRATOS DEFENSE & SEC SOLUTIONS and 2.4% of portfolio in STERLING INFRASTRUCTURE INC.

The fund managers got completely rid off BLUEPRINT MEDICINES CORP (BPMC), NUTEX HEALTH INC (NUTX) and MRC GLOBAL INC (MRC) stocks. They significantly reduced their stock positions in AVIENT CORPORATION (AVNT), CONSTELLATION BRANDS INC (STZ) and NEXTERA ENERGY INC (NEE). ESSEX INVESTMENT MANAGEMENT CO LLC opened new stock positions in GLOBALSTAR INC (GSAT), BETA BIONICS INC and TRAVERE THERAPEUTICS INC (TVTX). The fund showed a lot of confidence in some stocks as they added substantially to EXELIXIS INC (EXEL), ARCHER DANIELS MIDLAND CO (ADM) and JOHNSON & JOHNSON (JNJ).

ESSEX INVESTMENT MANAGEMENT CO LLC Annual Return Estimates Vs S&P 500

Our best estimate is that ESSEX INVESTMENT MANAGEMENT CO LLC made a return of 15.9% in the last quarter. In trailing 12 months, it's portfolio return was 33.21%.

New Buys

Ticker$ Bought
globalstar inc7,072,140
beta bionics inc4,423,360
penguin solutions inc4,418,350
travere therapeutics inc3,871,510
maxlinear inc3,863,530
curiositystream inc3,298,240
park aerospace corp3,059,830
worthington enterprises inc3,059,330
New stocks bought by ESSEX INVESTMENT MANAGEMENT CO LLC

Additions

Ticker% Inc.
exelixis inc3,670
archer daniels midland co1,321
johnson & johnson646
byd co ltd500
advanced drain sys inc del345
neuropace inc194
trimble inc168
samsara inc162
Additions to existing portfolio by ESSEX INVESTMENT MANAGEMENT CO LLC

Reductions

Ticker% Reduced
avient corporation-95.32
constellation brands inc-88.61
nextera energy inc-75.44
nova ltd-60.11
monolithic pwr sys inc-60.00
ge vernova inc-34.53
lightpath technologies inc-33.7
q2 hldgs inc-33.06
ESSEX INVESTMENT MANAGEMENT CO LLC reduced stake in above stock

Sold off

Ticker$ Sold
research solutions inc-1,685,960
olo inc-3,450,280
cognyte software ltd-3,145,940
mrc global inc-3,630,390
ultralife corp-2,145,120
potbelly corp-2,700,460
myomo inc-432,000
kelly svcs inc-1,981,000
ESSEX INVESTMENT MANAGEMENT CO LLC got rid off the above stocks

Sector Distribution

ESSEX INVESTMENT MANAGEMENT CO LLC has about 27.7% of it's holdings in Industrials sector.

Sector%
Industrials27.7
Technology19.9
Others16.1
Healthcare15.9
Financial Services5.1
Communication Services3.7
Consumer Defensive3.3
Energy3.2
Consumer Cyclical2.6
1.2

Market Cap. Distribution

ESSEX INVESTMENT MANAGEMENT CO LLC has about 16.7% of it's portfolio invested in the large-cap and mega-cap stocks.

Category%
SMALL-CAP35.3
MID-CAP18.6
UNALLOCATED16.5
MICRO-CAP12
LARGE-CAP11.3
MEGA-CAP5.4

Stocks belong to which Index?

About 63.2% of the stocks held by ESSEX INVESTMENT MANAGEMENT CO LLC either belong to S&P 500 or RUSSELL 2000 index.

Index%
RUSSELL 200051.5
Others36.9
S&P 50011.7
Top 5 Winners (%)%
LPTH
lightpath technologies inc
157.5 %
AMPX
amprius technologies inc
149.9 %
FSI
flexible solutions intl inc
98.8 %
KTOS
kratos defense & sec solutions
96.7 %
AMPG
amplitech group inc
83.5 %
Top 5 Winners ($)$
KTOS
kratos defense & sec solutions
15.7 M
AMSC
american superconductor corp
7.9 M
AMPX
amprius technologies inc
6.5 M
STRL
sterling infrastructure inc
5.8 M
LGND
ligand pharmaceuticals inc
3.9 M
Top 5 Losers (%)%
BMI
badger meter inc
-27.1 %
VTSI
virtra inc
-25.6 %
QTWO
q2 hldgs inc
-22.6 %
AVPT
avepoint inc
-22.1 %
NOVT
novanta inc
-21.7 %
Top 5 Losers ($)$
AVPT
avepoint inc
-2.2 M
SIBN
si-bone inc
-0.8 M
CRM
salesforce inc
-0.7 M
NOVT
novanta inc
-0.6 M
BMI
badger meter inc
-0.5 M

ESSEX INVESTMENT MANAGEMENT CO LLC Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of ESSEX INVESTMENT MANAGEMENT CO LLC

ESSEX INVESTMENT MANAGEMENT CO LLC has 299 stocks in it's portfolio. About 20.3% of the portfolio is in top 10 stocks. AVPT proved to be the most loss making stock for the portfolio. KTOS was the most profitable stock for ESSEX INVESTMENT MANAGEMENT CO LLC last quarter.

Last Reported on: 06 Nov, 2025
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions