NEEDHAM INVESTMENT MANAGEMENT LLC — 13F Holdings

2026 Q2  ·  189 Positions

2026 Q2 Portfolio Activity

In 2026 Q2, NEEDHAM INVESTMENT MANAGEMENT LLC maintained a portfolio of 189 distinct positions. The most significant new addition was ELMET GROUP CO (THE), now representing 1.57% of the total fund value. They heavily accumulated shares in CECO ENVIRONMENTAL CORP, increasing the position by 147.1%. Conversely, NEEDHAM INVESTMENT MANAGEMENT LLC completely exited their position in THERMON GROUP HLDGS INC.
Position History hover any row below to update
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PCA Score Concentration Risk
Risk ENB
Total Positions
189
Quarter
2026 Q2
Top Holding
VICR (6.0%)
Top 10 Concentration
38.1%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 189

NEEDHAM INVESTMENT MANAGEMENT LLC Full Holdings List — 2026 Q2

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
VICR
VICOR CORP
Technology 5.98% 4.29% #1 1
Prev: #2
4.9
2,000 0.4%
P
S
524,000 $199,004,720 2002 Q4 13F Filing 2026-06-30 2026-08-14
AIP
ARTERIS INC
Technology 5.74% 3.32% #2 3
Prev: #5
4.3
-25,000 -0.6%
P
S
3,927,500 $190,837,225 2023 Q1 13F Filing 2026-06-30 2026-08-14
VSH
VISHAY INTERTEC...
Technology 4.91% 2.69% #3 4
Prev: #7
3.5
115,610 4.0%
P
S
3,035,610 $163,255,106 2002 Q3 13F Filing 2026-06-30 2026-08-14
PDFS
PDF SOLUTIONS I...
Technology 4.40% 3.38% #4
Prev: #4
2.8
42,300 2.1%
P
S
2,065,000 $146,181,350 2008 Q4 13F Filing 2026-06-30 2026-08-14
LASR
NLIGHT INC
Technology 4.17% 5.60% #5 4
Prev: #1
2.7
70,000 3.6%
P
S
1,992,740 $138,734,559 2018 Q2 13F Filing 2026-06-30 2026-08-14
VRT
VERTIV HOLDINGS...
Industrials 2.88% 3.65% #6 3
Prev: #3
1.7
500 0.2%
P
S
285,750 $95,674,815 2021 Q4 13F Filing 2026-06-30 2026-08-14
VPG
VISHAY PRECISIO...
Technology 2.70% 1.38% #7 11
Prev: #18
1.6
-21,000 -3.4%
P
S
599,000 $89,796,090 2010 Q3 13F Filing 2026-06-30 2026-08-14
FORM
FORMFACTOR INC
Technology 2.63% 2.99% #8 2
Prev: #6
1.6
-56,000 -9.3%
P
S
547,500 $87,561,675 2003 Q2 13F Filing 2026-06-30 2026-08-14
CECO
CECO ENVIRONMEN...
Industrials 2.61% 1.18% #9 14
Prev: #23
4.0
570,000 147.1%
P
S
957,500 $86,883,550 2025 Q3 13F Filing 2026-06-30 2026-08-14
ODC
OIL DRI CORP AM...
Basic Materials 2.11% 2.25% #10 1
Prev: #9
1.3
8,500 1.3%
P
S
686,000 $70,116,060 2012 Q4 13F Filing 2026-06-30 2026-08-14
TDUP
THREDUP INC
Consumer Cyclical 2.10% 1.55% #11 3
Prev: #14
2.8
900,000 9.7%
P
S
10,175,000 $69,698,750 2021 Q3 13F Filing 2026-06-30 2026-08-14
LINC
LINCOLN EDL SVC...
Consumer Defensive 1.99% 2.66% #12 4
Prev: #8
1.3
47,500 3.7%
P
S
1,325,000 $66,117,500 2024 Q2 13F Filing 2026-06-30 2026-08-14
VECO
VEECO INSTRS IN...
Technology 1.93% 1.52% #13 2
Prev: #15
1.3
-34,150 -3.9%
P
S
845,850 $64,115,430 2002 Q3 13F Filing 2026-06-30 2026-08-14
TTI
TETRA TECHNOLOG...
Industrials 1.93% 1.47% #14 2
Prev: #16
3.8
2,276,500 67.5%
P
S
5,651,500 $64,031,495 2025 Q1 13F Filing 2026-06-30 2026-08-14
SMCI
SUPER MICRO COM...
Technology 1.64% 1.88% #15 3
Prev: #12
2.7
242,000 15.0%
P
S
1,858,500 $54,509,805 2008 Q2 13F Filing 2026-06-30 2026-08-14
N/A
ELMET GROUP CO ...
Unknown 1.57% #16
Prev: #—
4.1
2,639,416
NEW
2,639,416 $52,102,072 13F Filing 2026-06-30 2026-08-14
MKSI
MKS INC.
Technology 1.50% 1.41% #17
Prev: #17
1.1
-7,750 -6.5%
P
S
112,250 $49,928,800 2001 Q4 13F Filing 2026-06-30 2026-08-14
UTI
UNIVERSAL TECHN...
Consumer Defensive 1.45% 1.90% #18 7
Prev: #11
2.6
100,000 9.7%
P
S
1,130,000 $48,330,100 2024 Q2 13F Filing 2026-06-30 2026-08-14
NVMI
NOVA LTD
Technology 1.45% 2.05% #19 9
Prev: #10
1.1
-3,500 -3.8%
P
S
88,650 $48,131,631 2001 Q4 13F Filing 2026-06-30 2026-08-14
COHR
COHERENT CORP
Technology 1.10% 1.28% #20 1
Prev: #19
0.9
-13,000 -12.3%
P
S
92,500 $36,488,475 2001 Q4 13F Filing 2026-06-30 2026-08-14
KLAC
KLA CORP
Technology 0.93% 0.77% #21 21
Prev: #42
3.4
92,250 900.0%
P
S
102,500 $30,925,275 2001 Q4 13F Filing 2026-06-30 2026-08-14
CRAI
CRA INTL INC
Industrials 0.92% 1.16% #22 2
Prev: #24
3.4
75,500 53.9%
P
S
215,506 $30,666,504 2015 Q4 13F Filing 2026-06-30 2026-08-14
GENI
GENIUS SPORTS L...
Communication Services 0.90% 0.91% #23 9
Prev: #32
2.9
925,000 23.1%
P
S
4,925,000 $29,845,500 2023 Q3 13F Filing 2026-06-30 2026-08-14
VSAT
VIASAT INC
Technology 0.89% 0.77% #24 17
Prev: #41
1.4
no change no change
P
S
330,600 $29,691,186 2001 Q4 13F Filing 2026-06-30 2026-08-14
PSN
PARSONS CORP DE...
Technology 0.87% 1.13% #25 1
Prev: #26
2.8
146,000 35.7%
P
S
555,000 $29,076,450 2019 Q2 13F Filing 2026-06-30 2026-08-14
AMBQ
AMBIQ MICRO INC
Technology 0.86% 0.26% #26 69
Prev: #95
3.3
123,700 61.9%
P
S
323,700 $28,582,710 2026 Q1 13F Filing 2026-06-30 2026-08-14
CTRI
CENTURI HOLDING...
Utilities 0.86% 1.22% #27 5
Prev: #22
2.3
125,000 15.3%
P
S
942,628 $28,505,071 2024 Q2 13F Filing 2026-06-30 2026-08-14
BRKR
BRUKER CORP
Healthcare 0.83% 0.78% #28 11
Prev: #39
2.3
35,000 8.2%
P
S
459,250 $27,637,665 2014 Q2 13F Filing 2026-06-30 2026-08-14
ARLO
ARLO TECHNOLOGI...
Industrials 0.81% 1.28% #29 9
Prev: #20
2.3
235,000 13.4%
P
S
1,995,000 $26,892,600 2020 Q2 13F Filing 2026-06-30 2026-08-14
NVT
NVENT ELEC PLC
Industrials 0.79% 0.93% #30
Prev: #30
1.3
no change no change
P
S
154,500 $26,204,745 2004 Q3 13F Filing 2026-06-30 2026-08-14
WTTR
SELECT WATER SO...
Energy 0.78% 0.90% #31 2
Prev: #33
2.3
145,000 12.6%
P
S
1,300,000 $25,974,000 2025 Q2 13F Filing 2026-06-30 2026-08-14
GRC
GORMAN RUPP CO
Industrials 0.75% 0.87% #32 2
Prev: #34
1.3
no change no change
P
S
272,500 $24,999,150 2024 Q2 13F Filing 2026-06-30 2026-08-14
GNRC
GENERAC HLDGS I...
Industrials 0.72% 0.72% #33 13
Prev: #46
2.3
9,550 13.2%
P
S
82,000 $24,010,420 2015 Q3 13F Filing 2026-06-30 2026-08-14
ATRO
ASTRONICS CORP
Industrials 0.67% 0.93% #34 3
Prev: #31
1.3
no change no change
P
S
272,500 $22,143,350 2024 Q1 13F Filing 2026-06-30 2026-08-14
AKAM
AKAMAI TECHNOLO...
Technology 0.65% 1.05% #35 7
Prev: #28
0.8
5,000 2.8%
P
S
183,500 $21,691,535 2011 Q1 13F Filing 2026-06-30 2026-08-14
BMI
BADGER METER IN...
Technology 0.65% 0.23% #36 65
Prev: #101
3.3
115,000 383.3%
P
S
145,000 $21,515,100 2006 Q1 13F Filing 2026-06-30 2026-08-14
TNC
TENNANT CO
Industrials 0.64% 0.78% #37 3
Prev: #40
2.3
13,500 5.9%
P
S
242,500 $21,228,450 2025 Q3 13F Filing 2026-06-30 2026-08-14
ECG
EVERUS CONSTR G...
Industrials 0.63% 0.76% #38 6
Prev: #44
1.3
no change no change
P
S
126,500 $20,992,675 2024 Q4 13F Filing 2026-06-30 2026-08-14
CLH
CLEAN HARBORS I...
Industrials 0.63% 1.01% #39 10
Prev: #29
0.8
1,250 1.8%
P
S
70,106 $20,944,168 2013 Q3 13F Filing 2026-06-30 2026-08-14
ASUR
ASURE SOFTWARE ...
Technology 0.63% 1.15% #40 15
Prev: #25
0.8
27,500 1.1%
P
S
2,635,000 $20,921,900 2023 Q4 13F Filing 2026-06-30 2026-08-14
ASPN
ASPEN AEROGELS ...
Industrials 0.62% 0.79% #41 3
Prev: #38
0.2
-1,257,975 -27.8%
P
S
3,260,800 $20,673,472 2015 Q3 13F Filing 2026-06-30 2026-08-14
MTRX
MATRIX SVC CO
Industrials 0.59% 0.84% #42 7
Prev: #35
1.2
no change no change
P
S
1,435,000 $19,659,500 2022 Q1 13F Filing 2026-06-30 2026-08-14
MYRG
MYR GROUP INC
Industrials 0.59% 0.56% #43 13
Prev: #56
0.7
400 1.0%
P
S
39,000 $19,515,600 2024 Q3 13F Filing 2026-06-30 2026-08-14
PLAB
PHOTRONICS INC
Technology 0.57% 1.25% #44 23
Prev: #21
0.7
-19,500 -3.2%
P
S
585,500 $19,046,315 2001 Q4 13F Filing 2026-06-30 2026-08-14
LTRX
LANTRONIX INC
Technology 0.56% #45
Prev: #—
3.7
3,150,000
NEW
3,150,000 $18,522,000 2020 Q4 13F Filing 2026-06-30 2026-08-14
ENTG
ENTEGRIS INC
Technology 0.55% 0.70% #46 2
Prev: #48
0.7
-15,500 -13.2%
P
S
101,500 $18,255,790 2002 Q4 13F Filing 2026-06-30 2026-08-14
EVLV
EVOLV TECHNOLOG...
Industrials 0.54% 0.39% #47 22
Prev: #69
3.2
1,825,000 146.0%
P
S
3,075,000 $17,835,000 2025 Q2 13F Filing 2026-06-30 2026-08-14
BWXT
BWX TECHNOLOGIE...
Industrials 0.51% 0.62% #48 5
Prev: #53
2.7
28,500 48.3%
P
S
87,500 $17,031,875 2025 Q3 13F Filing 2026-06-30 2026-08-14
SOLS
SOLSTICE ADVANC...
Basic Materials 0.50% 0.73% #49 4
Prev: #45
1.2
no change no change
P
S
187,500 $16,612,500 2025 Q4 13F Filing 2026-06-30 2026-08-14
FELE
FRANKLIN ELEC I...
Industrials 0.50% #50
Prev: #—
3.7
154,200
NEW
154,200 $16,528,698 2026 Q2 13F Filing 2026-06-30 2026-08-14
Showing 1-50 of 189 holdings

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