Essex Investment Management CO LLC Portfolio Holdings

Essex Investment Management CO LLC

  • $486 Million
  • Q2 2025

Essex Investment Management CO LLC has filed its 13F form on August 12, 2025 for Q2 2025 where it was disclosed a total value porftolio of $486 Million distributed in 298 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Kratos Defense & Security Solutions, Inc. with a value of $16.3M, American Superconductor Corp with a value of $12.7M, Sterling Construction CO Inc with a value of $12.3M, Ave Point, Inc. with a value of $9.9M, and Microsoft Corp with a value of $9.19M.

Examining the 13F form we can see an increase of $43.3M in the current position value, from $443M to 486M.

Essex Investment Management CO LLC is based out at Boston, MA

Below you can find more details about Essex Investment Management CO LLC portfolio as well as his latest detailed transactions.

Portfolio value $486 Million
Industrials: $137 Million
Technology: $130 Million
Healthcare: $83.7 Million
Financial Services: $29.9 Million
Consumer Cyclical: $22.5 Million
Consumer Defensive: $22.4 Million
Communication Services: $21.2 Million
Energy: $20.4 Million
Other: $16.9 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$8.71B
$16.3 Million 3.35% of portfolio
350,352
Q2 2025 Reduced 1.22%
$1.6B
$12.7 Million 2.61% of portfolio
346,042
Q2 2025 Reduced 7.03%
$9.34B
$12.3 Million 2.52% of portfolio
53,121
Q2 2025 Reduced 1.49%
$2.76B
$9.9 Million 2.04% of portfolio
512,703
Q2 2025 Reduced 1.33%
$3.95T
$9.19 Million 1.89% of portfolio
18,485
Q2 2025 Reduced 1.72%
$1.41B
$9.13 Million 1.88% of portfolio
59,981
Q2 2025 Reduced 22.97%
$541M
$8.86 Million 1.82% of portfolio
384,552
Q2 2025 Reduced 0.72%
$5.07B
$8.47 Million 1.74% of portfolio
195,296
Q2 2025 Added 12.85%
$3.69T
$7.52 Million 1.55% of portfolio
36,647
Q2 2025 Reduced 2.42%
$1.81B
$7.19 Million 1.48% of portfolio
617,299
Q2 2025 Reduced 0.71%
$2.58B
$6.91 Million 1.42% of portfolio
60,810
Q2 2025 Reduced 1.45%
$533M
$6.88 Million 1.42% of portfolio
138,974
Q2 2025 Reduced 0.63%
$1.58B
$6.7 Million 1.38% of portfolio
107,227
Q2 2025 Reduced 21.78%
$16.5B
$6.68 Million 1.37% of portfolio
66,345
Q2 2025 Reduced 0.68%
$2.26T
$6.49 Million 1.34% of portfolio
29,599
Q2 2025 Reduced 2.27%
$254B
$6.48 Million 1.33% of portfolio
9,149
Q2 2025 Added 0.63%
$3.32B
$6.02 Million 1.24% of portfolio
27,318
Q2 2025 Reduced 24.56%
$2.38B
$5.74 Million 1.18% of portfolio
112,731
Q2 2025 New
$600M
$5.67 Million 1.17% of portfolio
234,677
Q2 2025 Added 40.58%
$2.66B
$5.58 Million 1.15% of portfolio
84,479
Q2 2025 Reduced 2.26%
$141B
$5.52 Million 1.14% of portfolio
79,535
Q2 2025 Reduced 25.1%
$17.5B
$5.48 Million 1.13% of portfolio
23,265
Q2 2025 Reduced 40.09%
$232B
$5.32 Million 1.09% of portfolio
19,497
Q2 2025 Reduced 2.22%
$61.6B
$4.91 Million 1.01% of portfolio
41,294
Q2 2025 Reduced 2.43%
$741M
$4.86 Million 1.0% of portfolio
175,408
Q2 2025 Reduced 0.72%
$7.73B
$4.65 Million 0.96% of portfolio
36,291
Q2 2025 Reduced 12.6%
$523M
$4.53 Million 0.93% of portfolio
266,221
Q2 2025 Reduced 0.72%
$4.19B
$4.44 Million 0.91% of portfolio
81,973
Q2 2025 Added 95.89%
$130M
$4.38 Million 0.9% of portfolio
721,828
Q2 2025 Reduced 0.72%
$6.1B
$4.35 Million 0.9% of portfolio
55,869
Q2 2025 Reduced 10.85%
$885M
$4.32 Million 0.89% of portfolio
1,025,357
Q2 2025 Added 9.57%
$2.48B
$4.25 Million 0.87% of portfolio
46,055
Q2 2025 Reduced 0.94%
$16.3B
$4.05 Million 0.83% of portfolio
28,128
Q2 2025 Added 30.67%
$39.4B
$3.97 Million 0.82% of portfolio
12,641
Q2 2025 Reduced 2.11%
$201M
$3.96 Million 0.81% of portfolio
300,940
Q2 2025 Reduced 0.73%
$686M
$3.95 Million 0.81% of portfolio
681,702
Q2 2025 Reduced 3.05%
$521M
$3.88 Million 0.8% of portfolio
206,408
Q2 2025 Reduced 0.72%
$258M
$3.89 Million 0.8% of portfolio
325,378
Q2 2025 Reduced 0.64%
$567M
$3.68 Million 0.76% of portfolio
220,306
Q2 2025 Reduced 0.72%
$753M
$3.64 Million 0.75% of portfolio
298,682
Q2 2025 Reduced 0.71%
$1.16B
$3.63 Million 0.75% of portfolio
264,799
Q2 2025 Reduced 0.72%
$961M
$3.54 Million 0.73% of portfolio
381,595
Q2 2025 Reduced 0.71%
$18.4B
$3.56 Million 0.73% of portfolio
20,234
Q2 2025 Reduced 15.38%
$1.04B
$3.45 Million 0.71% of portfolio
387,672
Q2 2025 Reduced 0.71%
$25.5B
$3.42 Million 0.7% of portfolio
34,483
Q2 2025 Added 108.33%
$992M
$3.39 Million 0.7% of portfolio
725,774
Q2 2025 Reduced 0.64%
$204M
$3.4 Million 0.7% of portfolio
477,342
Q2 2025 Reduced 0.67%
$4.16B
$3.3 Million 0.68% of portfolio
45,661
Q2 2025 Reduced 0.68%
$207B
$3.28 Million 0.67% of portfolio
26,458
Q2 2025 Reduced 5.36%

Summary

  • Portfolio
  • No. of Stocks 298
  • Current Value $486 Million
  • Prior Value $443 Million
  • Filing
  • Period Q2 2025
  • Filing Date August 12, 2025
  • Form Type 13F-HR
  • Activity in Q2 2025
  • New Purchases 25 stocks
  • Additional Purchases 24 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 150 stocks
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