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EIM

Essex Investment Management Portfolio holdings

AUM $632M
1-Year Est. Return 95.36%
This Fund
S&P 500
This Quarter Est. Return
+7.95%
1 Year Est. Return
+95.36%
3 Year Est. Return
+271.62%
5 Year Est. Return
+354.98%
10 Year Est. Return
+3,586.14%
AUM
$632M
AUM Growth
-$24.2M
Cap. Flow
-$29.9M
Cap. Flow %
-4.73%
Top 10 Hldgs %
19.9%
Holding
333
New
27
Increased
83
Reduced
86
Closed
28

Top Buys

Rank Stock Value
1
NVCR icon
NovoCure
NVCR
+$5.65M
2
SNDX icon
Syndax Pharmaceuticals
SNDX
+$4.32M
3
MG icon
Mistras Group
MG
+$3.88M
4
RSKD icon
Riskified
RSKD
+$3.56M
5
MITK icon
Mitek Systems
MITK
+$3.41M

Top Sells

Rank Stock Value
1
TSEM icon
Tower Semiconductor
TSEM
+$10.3M
2
BBNX
Beta Bionics
BBNX
+$6.64M
3
UVE icon
Universal Insurance Holdings
UVE
+$6M
4
STRL icon
Sterling Infrastructure
STRL
+$4.94M
5
AGX icon
Argan
AGX
+$4.7M

Sector Composition

Rank Sector Weight
1 Industrials 28.14%
2 Technology 24.71%
3 Healthcare 23.43%
4 Financials 5.67%
5 Consumer Staples 4.62%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
COHU icon
26
Cohu
COHU
$2.45B
$5.88M 0.93%
191,885
+3,352
+2% +$98.4K
MSFT icon
27
Microsoft
MSFT
$3.62T
$5.85M 0.93%
15,791
-1,822
-10% -$762K
MIR icon
28
Mirion Technologies
MIR
$3.84B
$5.75M 0.91%
309,110
+5,758
+2% +$130K
AMZN icon
29
Amazon
AMZN
$2.94T
$5.67M 0.9%
27,208
-1,625
-6% -$358K
OII icon
30
Oceaneering
OII
$4.78B
$5.62M 0.89%
158,374
+2,940
+2% +$95.1K
WMS icon
31
Advanced Drainage Systems
WMS
$11.5B
$5.56M 0.88%
40,569
-2,266
-5% -$351K
BVS icon
32
Bioventus
BVS
$1.03B
$5.51M 0.87%
603,258
+215,372
+56% +$1.81M
MAMA icon
33
Mama's Creations
MAMA
$849M
$5.24M 0.83%
341,657
+6,033
+2% +$91.6K
BWXT icon
34
BWX Technologies
BWXT
$15.4B
$5.23M 0.83%
25,555
-1,692
-6% -$344K
PATK icon
35
Patrick Industries
PATK
$2.9B
$5.13M 0.81%
46,228
+287
+0.6% +$35.5K
LYTS icon
36
LSI Industries
LYTS
$918M
$5.1M 0.81%
274,082
+4,834
+2% +$99.7K
ORN icon
37
Orion Group Holdings
ORN
$418M
$5.03M 0.8%
461,772
+12,011
+3% +$144K
NVCR icon
38
NovoCure
NVCR
$1.87B
$4.93M 0.78%
+452,370
New +$5.65M
TVTX icon
39
Travere Therapeutics
TVTX
$5.84B
$4.8M 0.76%
161,705
+2,996
+2% +$89.6K
AIP icon
40
Arteris
AIP
$1.43B
$4.77M 0.76%
290,319
+5,152
+2% +$81.7K
AVPT icon
41
AvePoint
AVPT
$2.84B
$4.74M 0.75%
498,482
-9,532
-2% -$107K
ASML icon
42
ASML
ASML
$645B
$4.7M 0.74%
3,556
-250
-7% -$343K
SNDX icon
43
Syndax Pharmaceuticals
SNDX
$1.77B
$4.65M 0.74%
+198,985
New +$4.32M
CXDO icon
44
Crexendo
CXDO
$215M
$4.58M 0.73%
742,986
+13,109
+2% +$86.1K
ECG
45
Everus Construction Group
ECG
$7.18B
$4.5M 0.71%
38,098
+706
+2% +$73K
XERS icon
46
Xeris Biopharma Holdings
XERS
$1.4B
$4.34M 0.69%
747,769
+13,237
+2% +$87.8K
GMED icon
47
Globus Medical
GMED
$10.9B
$4.31M 0.68%
50,004
-1,405
-3% -$126K
AMBA icon
48
Ambarella
AMBA
$3.59B
$4.24M 0.67%
82,387
-1,456
-2% -$90.8K
XZO
49
Exzeo Group
XZO
$1.46B
$4.23M 0.67%
288,111
-2,965
-1% -$52.7K
FEIM icon
50
Frequency Electronics
FEIM
$778M
$4.12M 0.65%
93,026
+1,646
+2% +$84K
1
2
3 4 5

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Essex Investment Management's Q1 2026 Portfolio in Review

As of Q1 2026, Essex Investment Management held 333 positions worth $632M, down 3.7% from $656M the previous quarter. Its ten largest holdings account for 20% of the portfolio.

Essex Investment Management withdrew a net $29.9M in Q1 2026, closing 28 positions and reducing 86 holdings. Its most notable exit was Beta Bionics, an estimated $6.64M position sold in full.

By sector, the portfolio is most concentrated in Industrials at 28% of assets, up from 27% a quarter earlier, followed by Technology and Healthcare.

Against the trend, Essex Investment Management opened a new position in NovoCure worth $4.93M.

  • Essex Investment Management's largest Q1 2026 buy was NovoCure: 452,370 shares worth $4.93M.
  • Essex Investment Management added most to Rapid Micro Biosystems in Q1 2026, an estimated $3.01M increase.
  • Essex Investment Management's biggest Q1 2026 reduction was Tower Semiconductor, cutting an estimated $10.3M.
  • Essex Investment Management fully exited Beta Bionics in Q1 2026, selling an estimated $6.64M.
  • Essex Investment Management's ten largest holdings make up 20% of its $632M portfolio in Q1 2026.
  • Essex Investment Management opened 27 new positions and closed 28 in Q1 2026.
  • Essex Investment Management's portfolio value fell 3.7% quarter-over-quarter to $632M.

Based on Essex Investment Management's 13F filing for Q1 2026, filed 11 May 2026.