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NIM

Needham Investment Management Portfolio holdings

AUM $1.96B
1-Year Est. Return 101.23%
This Fund
S&P 500
This Quarter Est. Return
+20.51%
1 Year Est. Return
+101.23%
3 Year Est. Return
+267.12%
5 Year Est. Return
+252.76%
10 Year Est. Return
+1,102.05%
AUM
$1.96B
AUM Growth
+$374M
Cap. Flow
+$155M
Cap. Flow %
7.91%
Top 10 Hldgs %
32.88%
Holding
183
New
21
Increased
65
Reduced
29
Closed
7

Top Buys

Rank Stock Value
1
TDUP icon
ThredUp
TDUP
+$14.8M
2
TNC icon
Tennant Co
TNC
+$11.7M
3
VITL icon
Vital Farms
VITL
+$11M
4
TTI icon
TETRA Technologies
TTI
+$10M
5
VSH icon
Vishay Intertechnology
VSH
+$9.91M

Top Sells

Rank Stock Value
1
TTMI icon
TTM Technologies
TTMI
+$9.3M
2
ENTG icon
Entegris
ENTG
+$8.79M
3
NVMI
Nova
NVMI
+$8.63M
4
VICR icon
Vicor
VICR
+$7.9M
5
FORM icon
FormFactor
FORM
+$7.83M

Sector Composition

Rank Sector Weight
1 Technology 48.33%
2 Industrials 25.1%
3 Consumer Staples 5.4%
4 Materials 5.03%
5 Healthcare 4.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PSN icon
26
Parsons
PSN
$6.28B
$22.2M 1.13%
409,000
+85,000
+26% +$5.43M
HII icon
27
Huntington Ingalls Industries
HII
$11.3B
$21M 1.07%
55,250
+4,750
+9% +$1.96M
AKAM icon
28
Akamai
AKAM
$16.8B
$20.5M 1.05%
178,500
+22,000
+14% +$2.21M
CLH icon
29
Clean Harbors
CLH
$16.1B
$19.7M 1.01%
68,856
– –
NVT icon
30
nVent Electric
NVT
$24.5B
$18.3M 0.93%
154,500
– –
ATRO icon
31
Astronics
ATRO
$3.45B
$18.2M 0.93%
327,000
– –
GENI icon
32
Genius Sports
GENI
$1.73B
$17.7M 0.91%
4,000,000
+1,310,000
+49% +$9.33M
WTTR icon
33
Select Water Solutions
WTTR
$2.51B
$17.7M 0.9%
1,155,000
+380,000
+49% +$4.97M
GRC icon
34
Gorman-Rupp
GRC
$2.16B
$16.9M 0.87%
272,500
+12,500
+5% +$739K
MTRX icon
35
Matrix Service
MTRX
$347M
$16.5M 0.84%
1,435,000
– –
VITL icon
36
Vital Farms
VITL
$558M
$16.2M 0.83%
1,150,000
+465,000
+68% +$11M
ADTN icon
37
Adtran
ADTN
$798M
$15.5M 0.79%
1,228,500
-219,000
-15% -$2.22M
ASPN icon
38
Aspen Aerogels
ASPN
$387M
$15.5M 0.79%
4,518,775
+167,075
+4% +$563K
BRKR icon
39
Bruker
BRKR
$9.2B
$15.3M 0.78%
424,250
+59,600
+16% +$2.49M
TNC icon
40
Tennant Co
TNC
$1.5B
$15.2M 0.78%
229,000
+161,500
+239% +$11.7M
VSAT icon
41
Viasat
VSAT
$9.79B
$15.1M 0.77%
330,600
– –
KLAC icon
42
KLA
KLAC
$275B
$15.1M 0.77%
102,500
-27,500
-21% -$4.02M
LH icon
43
Labcorp
LH
$24.3B
$15M 0.77%
56,313
– –
ECG
44
Everus Construction Group
ECG
$6.63B
$14.9M 0.76%
126,500
– –
SOLS
45
Solstice Advanced Materials
SOLS
$9.62B
$14.3M 0.73%
187,500
+12,500
+7% +$857K
GNRC icon
46
Generac Holdings
GNRC
$11.9B
$14.2M 0.72%
72,450
+37,950
+110% +$7.29M
WAB icon
47
Wabtec
WAB
$51.1B
$13.9M 0.71%
55,750
– –
ENTG icon
48
Entegris
ENTG
$19.7B
$13.7M 0.7%
117,000
-74,400
-39% -$8.79M
ECVT icon
49
Ecovyst
ECVT
$1.36B
$13.1M 0.67%
1,020,000
– –
MKL icon
50
Markel Group
MKL
$25B
$12.8M 0.66%
6,700
+475
+8% +$964K
1
2
3 4 5

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TCM
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Needham Investment Management's Q1 2026 Portfolio in Review

As of Q1 2026, Needham Investment Management held 183 positions worth $1.96B, up 24% from $1.58B the previous quarter. Its ten largest holdings account for 33% of the portfolio.

Needham Investment Management deployed $155M of net new capital in Q1 2026, opening 21 new positions and adding to 65 existing holdings. Its largest new stake was Unusual Machines: 485,000 shares worth $6.01M.

By sector, the portfolio is most concentrated in Technology at 48% of assets, down from 49% a quarter earlier, followed by Industrials and Consumer Staples.

On the sell side, the largest reduction was TTM Technologies, an estimated $9.3M trimmed.

  • Needham Investment Management's largest Q1 2026 buy was Unusual Machines: 485,000 shares worth $6.01M.
  • Needham Investment Management added most to ThredUp in Q1 2026, an estimated $14.8M increase.
  • Needham Investment Management's biggest Q1 2026 reduction was TTM Technologies, cutting an estimated $9.3M.
  • Needham Investment Management fully exited Air Lease Corp in Q1 2026, selling an estimated $2.89M.
  • Needham Investment Management's ten largest holdings make up 33% of its $1.96B portfolio in Q1 2026.
  • Needham Investment Management opened 21 new positions and closed 7 in Q1 2026.
  • Needham Investment Management's portfolio value rose 24% quarter-over-quarter to $1.96B.

Based on Needham Investment Management's 13F filing for Q1 2026, filed 15 May 2026.