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NIM

Needham Investment Management Portfolio holdings

AUM $3.33B
1-Year Est. Return 163.16%
This Fund
S&P 500
This Quarter Est. Return
+72.57%
1 Year Est. Return
+163.16%
3 Year Est. Return
+424.09%
5 Year Est. Return
+460.72%
10 Year Est. Return
+1,945.3%
AUM
$3.33B
AUM Growth
+$1.37B
Cap. Flow
+$316M
Cap. Flow %
9.5%
Top 10 Hldgs %
38.13%
Holding
188
New
12
Increased
76
Reduced
28
Closed
12

Top Buys

Rank Stock Value
1
ELMT
The Elmet Group
ELMT
+$45.3M
2
CECO icon
Ceco Environmental
CECO
+$45.1M
3
TTI icon
TETRA Technologies
TTI
+$22.3M
4
LTRX icon
Lantronix
LTRX
+$20.2M
5
FELE icon
Franklin Electric
FELE
+$15.5M

Top Sells

Rank Stock Value
1
THR
Thermon Group Holdings
THR
+$31.9M
2
ADTN icon
Adtran
ADTN
+$12.1M
3
FORM icon
FormFactor
FORM
+$7.43M
4
ASPN icon
Aspen Aerogels
ASPN
+$6.17M
5
COHR icon
Coherent
COHR
+$4.6M

Sector Composition

Rank Sector Weight
1 Technology 55.11%
2 Industrials 21.48%
3 Materials 4.41%
4 Consumer Staples 3.88%
5 Consumer Discretionary 3.57%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ACLS icon
101
Axcelis
ACLS
$3.67B
$6.73M 0.2%
35,500
-7,000
-16% -$1.04M
SMID icon
102
Smith-Midland
SMID
$135M
$6.53M 0.2%
225,000
– –
BFAM icon
103
Bright Horizons
BFAM
$3.26B
$6.38M 0.19%
90,000
-39,000
-30% -$2.82M
PRIM icon
104
Primoris Services
PRIM
$4.09B
$6.37M 0.19%
+64,250
New +$8.45M
ADTN icon
105
Adtran
ADTN
$614M
$6.25M 0.19%
450,000
-778,500
-63% -$12.1M
AMAT icon
106
Applied Materials
AMAT
$373B
$5.96M 0.18%
8,250
– –
LGN
107
Legence Corp
LGN
$4.39B
$5.75M 0.17%
67,500
– –
CMT icon
108
Core Molding Technologies
CMT
$211M
$5.73M 0.17%
242,600
-9,771
-4% -$240K
CMCSA icon
109
Comcast
CMCSA
$92.7B
$5.68M 0.17%
231,500
– –
NTSK
110
Netskope Inc
NTSK
$5.85B
$5.47M 0.16%
500,000
+400,000
+400% +$4.07M
NSLR
111
Neostellar Capital Corp
NSLR
$267M
$5.35M 0.16%
426,594
– –
AAPL icon
112
Apple
AAPL
$4.61T
$5.34M 0.16%
18,450
– –
NVGS icon
113
Navigator Holdings
NVGS
$1.38B
$5.33M 0.16%
286,000
– –
Q
114
Qnity Electronics Inc
Q
$25.8B
$5.31M 0.16%
32,500
– –
BOX icon
115
Box
BOX
$4.66B
$5.18M 0.16%
195,000
– –
OCTV
116
Octave Intelligence
OCTV
$5.03B
$4.89M 0.15%
+300,000
New +$5.51M
BA icon
117
Boeing
BA
$168B
$4.87M 0.15%
22,500
– –
EHC icon
118
Encompass Health
EHC
$12B
$4.55M 0.14%
45,000
– –
CSGP icon
119
CoStar Group
CSGP
$12.1B
$4.52M 0.14%
159,500
+17,500
+12% +$602K
FLY
120
Firefly Aerospace
FLY
$3.84B
$4.48M 0.13%
152,500
+92,500
+154% +$3.46M
HON icon
121
Honeywell
HON
$66B
$4.48M 0.13%
20,000
-7,500
-27% -$1.67M
HONA
122
Honeywell Aerospace
HONA
$49.9B
$4.42M 0.13%
+20,000
New +$4.41M
ADI icon
123
Analog Devices
ADI
$177B
$4.17M 0.13%
10,500
+500
+5% +$198K
MDT icon
124
Medtronic
MDT
$119B
$4.15M 0.12%
53,041
– –
MEC icon
125
Mayville Engineering Co
MEC
$510M
$4.12M 0.12%
110,000
+90,000
+450% +$2.41M
3 4
5
6 7

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CWM
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SWM
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YC
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Needham Investment Management's Q2 2026 Portfolio in Review

As of Q2 2026, Needham Investment Management held 188 positions worth $3.33B, up 70% from $1.96B the previous quarter. Its ten largest holdings account for 38% of the portfolio.

Needham Investment Management deployed $316M of net new capital in Q2 2026, opening 12 new positions and adding to 76 existing holdings. Its largest new stake was The Elmet Group: 2,639,416 shares worth $52.1M.

By sector, the portfolio is most concentrated in Technology at 55% of assets, up from 48% a quarter earlier, followed by Industrials and Materials.

On the sell side, the largest reduction was Adtran, an estimated $12.1M trimmed.

  • Needham Investment Management's largest Q2 2026 buy was The Elmet Group: 2,639,416 shares worth $52.1M.
  • Needham Investment Management added most to Ceco Environmental in Q2 2026, an estimated $45.1M increase.
  • Needham Investment Management's biggest Q2 2026 reduction was Adtran, cutting an estimated $12.1M.
  • Needham Investment Management fully exited Thermon Group Holdings in Q2 2026, selling an estimated $31.9M.
  • Needham Investment Management's ten largest holdings make up 38% of its $3.33B portfolio in Q2 2026.
  • Needham Investment Management opened 12 new positions and closed 12 in Q2 2026.
  • Needham Investment Management's portfolio value rose 70% quarter-over-quarter to $3.33B.

Based on Needham Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.