2026 Q1 Portfolio Activity
In 2026 Q1, NEEDHAM INVESTMENT MANAGEMENT LLC maintained a portfolio of 183 distinct positions. The most significant new addition was MASTEC INC, now representing 0.33% of the total fund value. They heavily accumulated shares in LINCOLN EDL SVCS CORP, increasing the position by 13.6%. The fund also reduced its exposure to TTM TECHNOLOGIES INC by 52.8%.
Position History
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Total Positions
183
Quarter
2026 Q1
Top Holding
LASR (5.6%)
Top 10 Concentration
32.9%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 183
NEEDHAM INVESTMENT MANAGEMENT LLC Full Holdings List — 2026 Q1
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
LASR
NLIGHT INC
|
Technology | 5.60% | 4.40% |
#1
Prev: #1
|
4.7 |
—
|
65,000 | 3.5% |
P
S
|
1,922,740 | $109,634,635 |
$14.08
+442.5%
|
2018 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
VICR
VICOR CORP
|
Technology | 4.29% | 3.95% |
#2
Prev: #2
|
3.7 |
—
|
-47,775 | -8.4% |
P
S
|
522,000 | $84,042,000 | 2002 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VRT
VERTIV HOLDINGS...
|
Industrials | 3.65% | 2.92% |
#3
2
Prev: #5
|
3.5 |
—
|
no change | no change |
P
S
|
285,250 | $71,477,945 | 2021 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
PDFS
PDF SOLUTIONS I...
|
Technology | 3.38% | 3.54% |
#4
1
Prev: #3
|
2.4 |
—
|
57,700 | 2.9% |
P
S
|
2,022,700 | $66,162,517 | 2008 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
AIP
ARTERIS INC
|
Technology | 3.32% | 3.34% |
#5
1
Prev: #4
|
3.8 |
—
|
541,000 | 15.9% |
P
S
|
3,952,500 | $64,979,100 | 2023 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
FORM
FORMFACTOR INC
|
Technology | 2.99% | 2.45% |
#6
2
Prev: #8
|
1.7 |
—
|
-91,000 | -13.1% |
P
S
|
603,500 | $58,533,465 | 2003 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VSH
VISHAY INTERTEC...
|
Technology | 2.69% | 2.17% |
#7
3
Prev: #10
|
3.6 |
—
|
545,000 | 22.9% |
P
S
|
2,920,000 | $52,560,000 | 2002 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
LINC
LINCOLN EDL SVC...
|
Consumer Defensive | 2.66% | 1.72% |
#8
5
Prev: #13
|
3.1 |
—
|
152,500 | 13.6% |
P
S
|
1,277,500 | $51,968,700 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ODC
OIL DRI CORP AM...
|
Basic Materials | 2.25% | 1.96% |
#9
2
Prev: #11
|
2.9 |
—
|
42,500 | 6.7% |
P
S
|
677,500 | $44,098,475 | 2012 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
NVMI
NOVA LTD
|
Technology | 2.05% | 2.32% |
#10
1
Prev: #9
|
1.3 |
—
|
-19,600 | -17.5% |
P
S
|
92,150 | $40,018,902 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
UTI
UNIVERSAL TECHN...
|
Consumer Defensive | 1.90% | 1.33% |
#11
12
Prev: #23
|
3.3 |
—
|
222,500 | 27.6% |
P
S
|
1,030,000 | $37,183,000 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SMCI
SUPER MICRO COM...
|
Technology | 1.88% | 2.55% |
#12
6
Prev: #6
|
2.8 |
—
|
236,500 | 17.1% |
P
S
|
1,616,500 | $36,807,705 | 2008 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
THR
THERMON GROUP H...
|
Industrials | 1.63% | 1.46% |
#13
5
Prev: #18
|
1.2 |
—
|
12,500 | 2.0% |
P
S
|
632,500 | $31,878,000 | 2021 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
TDUP
THREDUP INC
|
Consumer Cyclical | 1.55% | 2.45% |
#14
7
Prev: #7
|
3.6 |
—
|
3,200,000 | 52.7% |
P
S
|
9,275,000 | $30,422,000 | 2021 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VECO
VEECO INSTRS IN...
|
Technology | 1.52% | 1.45% |
#15
4
Prev: #19
|
2.6 |
—
|
75,000 | 9.3% |
P
S
|
880,000 | $29,796,801 | 2002 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
TTI
TETRA TECHNOLOG...
|
Industrials | 1.47% | 1.41% |
#16
4
Prev: #20
|
3.1 |
—
|
1,000,000 | 42.1% |
P
S
|
3,375,000 | $28,755,000 | 2025 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
MKSI
MKS INC.
|
Technology | 1.41% | 1.32% |
#17
7
Prev: #24
|
1.1 |
—
|
-10,500 | -8.0% |
P
S
|
120,000 | $27,577,201 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VPG
VISHAY PRECISIO...
|
Technology | 1.38% | 1.60% |
#18
3
Prev: #15
|
1.1 |
—
|
-37,500 | -5.7% |
P
S
|
620,000 | $26,920,400 | 2010 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
COHR
COHERENT CORP
|
Technology | 1.28% | 1.60% |
#19
5
Prev: #14
|
0.5 |
—
|
-32,000 | -23.3% |
P
S
|
105,500 | $25,131,155 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ARLO
ARLO TECHNOLOGI...
|
Industrials | 1.28% | 1.36% |
#20
2
Prev: #22
|
2.5 |
—
|
220,000 | 14.3% |
P
S
|
1,760,000 | $25,044,800 | 2020 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
PLAB
PHOTRONICS INC
|
Technology | 1.25% | 1.57% |
#21
5
Prev: #16
|
0.5 |
—
|
-170,000 | -21.9% |
P
S
|
605,000 | $24,448,050 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CTRI
CENTURI HOLDING...
|
Utilities | 1.22% | 1.27% |
#22
3
Prev: #25
|
1.0 |
—
|
20,000 | 2.5% |
P
S
|
817,628 | $23,882,914 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CECO
CECO ENVIRONMEN...
|
Industrials | 1.18% | 1.13% |
#23
5
Prev: #28
|
3.0 |
—
|
89,000 | 29.8% |
P
S
|
387,500 | $23,087,250 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CRAI
CRA INTL INC
|
Industrials | 1.16% | 1.25% |
#24
3
Prev: #27
|
3.0 |
—
|
41,250 | 41.8% |
P
S
|
140,006 | $22,664,171 | 2015 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ASUR
ASURE SOFTWARE ...
|
Technology | 1.15% | 1.53% |
#25
8
Prev: #17
|
1.0 |
—
|
37,500 | 1.5% |
P
S
|
2,607,500 | $22,424,500 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
PSN
PARSONS CORP DE...
|
Technology | 1.13% | 1.27% |
#26
Prev: #26
|
3.0 |
—
|
85,000 | 26.2% |
P
S
|
409,000 | $22,155,530 | 2019 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
HII
HUNTINGTON INGA...
|
Industrials | 1.07% | 1.09% |
#27
3
Prev: #30
|
2.4 |
—
|
4,750 | 9.4% |
P
S
|
55,250 | $20,989,475 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
AKAM
AKAMAI TECHNOLO...
|
Technology | 1.05% | 0.86% |
#28
11
Prev: #39
|
2.4 |
—
|
22,000 | 14.1% |
P
S
|
178,500 | $20,500,725 | 2011 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CLH
CLEAN HARBORS I...
|
Industrials | 1.01% | 1.02% |
#29
3
Prev: #32
|
1.4 |
—
|
no change | no change |
P
S
|
68,856 | $19,743,081 | 2013 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
NVT
NVENT ELEC PLC
|
Industrials | 0.93% | 1.00% |
#30
5
Prev: #35
|
1.4 |
—
|
no change | no change |
P
S
|
154,500 | $18,274,260 | 2004 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ATRO
ASTRONICS CORP
|
Industrials | 0.93% | 0.93% |
#31
5
Prev: #36
|
1.4 |
—
|
no change | no change |
P
S
|
272,500 | $18,183,925 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GENI
GENIUS SPORTS L...
|
Communication Services | 0.91% | 1.87% |
#32
20
Prev: #12
|
2.9 |
—
|
1,310,000 | 48.7% |
P
S
|
4,000,000 | $17,720,000 | 2023 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
WTTR
SELECT WATER SO...
|
Energy | 0.90% | 0.52% |
#33
24
Prev: #57
|
2.9 |
—
|
380,000 | 49.0% |
P
S
|
1,155,000 | $17,671,500 | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GRC
GORMAN RUPP CO
|
Industrials | 0.87% | 0.78% |
#34
11
Prev: #45
|
0.8 |
—
|
12,500 | 4.8% |
P
S
|
272,500 | $16,930,425 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
MTRX
MATRIX SVC CO
|
Industrials | 0.84% | 1.06% |
#35
4
Prev: #31
|
1.3 |
—
|
no change | no change |
P
S
|
1,435,000 | $16,473,800 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VITL
VITAL FARMS INC
|
Consumer Defensive | 0.83% | 1.38% |
#36
15
Prev: #21
|
3.3 |
—
|
465,000 | 67.9% |
P
S
|
1,150,000 | $16,238,000 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ADTN
ADTRAN HOLDINGS...
|
Technology | 0.79% | 0.79% |
#37
7
Prev: #44
|
0.8 |
—
|
-219,000 | -15.1% |
P
S
|
1,228,500 | $15,454,531 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ASPN
ASPEN AEROGELS ...
|
Industrials | 0.79% | 0.78% |
#38
8
Prev: #46
|
0.8 |
—
|
167,075 | 3.8% |
P
S
|
4,518,775 | $15,454,211 | 2015 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
BRKR
BRUKER CORP
|
Healthcare | 0.78% | 1.09% |
#39
10
Prev: #29
|
2.3 |
—
|
59,600 | 16.3% |
P
S
|
424,250 | $15,323,910 | 2014 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
TNC
TENNANT CO
|
Industrials | 0.78% | 0.31% |
#40
43
Prev: #83
|
3.3 |
—
|
161,500 | 239.3% |
P
S
|
229,000 | $15,205,600 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VSAT
VIASAT INC
|
Technology | 0.77% | 0.72% |
#41
7
Prev: #48
|
1.3 |
—
|
no change | no change |
P
S
|
330,600 | $15,141,480 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
KLAC
KLA CORP
|
Technology | 0.77% | 1.00% |
#42
8
Prev: #34
|
0.3 |
—
|
-2,750 | -21.2% |
P
S
|
10,250 | $15,092,203 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
LH
LABCORP HOLDING...
|
Healthcare | 0.77% | 0.89% |
#43
5
Prev: #38
|
1.3 |
—
|
no change | no change |
P
S
|
56,313 | $15,024,872 | 2003 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ECG
EVERUS CONSTR G...
|
Industrials | 0.76% | 0.68% |
#44
5
Prev: #49
|
1.3 |
—
|
no change | no change |
P
S
|
126,500 | $14,934,590 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SOLS
SOLSTICE ADVANC...
|
Basic Materials | 0.73% | 0.54% |
#45
8
Prev: #53
|
2.3 |
—
|
12,500 | 7.1% |
P
S
|
187,500 | $14,280,000 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GNRC
GENERAC HLDGS I...
|
Industrials | 0.72% | 0.30% |
#46
42
Prev: #88
|
3.3 |
—
|
37,950 | 110.0% |
P
S
|
72,450 | $14,151,658 | 2015 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
WAB
WABTEC
|
Industrials | 0.71% | 0.75% |
#47
Prev: #47
|
1.3 |
—
|
no change | no change |
P
S
|
55,750 | $13,932,483 | 2019 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ENTG
ENTEGRIS INC
|
Technology | 0.70% | 1.02% |
#48
15
Prev: #33
|
0.3 |
—
|
-74,400 | -38.9% |
P
S
|
117,000 | $13,717,080 | 2002 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ECVT
ECOVYST INC
|
Basic Materials | 0.67% | 0.63% |
#49
2
Prev: #51
|
1.3 |
—
|
no change | no change |
P
S
|
1,020,000 | $13,117,200 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
MKL
MARKEL GROUP IN...
|
Financial Services | 0.66% | 0.85% |
#50
10
Prev: #40
|
2.3 |
—
|
475 | 7.6% |
P
S
|
6,700 | $12,824,270 | 2017 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 |
Showing 1-50 of 183 holdings