Needham Investment Management LLC reported 170 positions worth $3.28B for the quarter ended Jun 30, 2026, up 73.7% on the prior quarter. It opened 12 new positions, added to 75, trimmed 25 and exited 11. Its largest holding is Vicor Corp at 6.1% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Trade Value | Weight |
|---|---|---|---|
| ELMT Elmet Group Co. | +2.64M | $52.10M | 1.59% |
| CECO Ceco Environmental Corp | +570.0K +147.1% | $51.72M | 2.65% |
| TTI Tetra Technologies Inc | +2.28M +67.5% | $25.79M | 1.95% |
| LTRX Lantronix Inc | +3.15M | $18.52M | 0.565% |
| BMI Badger Meter Inc | +115.0K +383.3% | $17.06M | 0.657% |
| FELE Franklin Electric Co Inc | +154.2K | $16.53M | 0.505% |
| AMBQ Ambiq Micro, Inc. | +123.7K +61.9% | $10.92M | 0.872% |
| CRAI Cra International, Inc. | +75.5K +53.9% | $10.74M | 0.936% |
| DDD 3D Systems Corp | +3.53M | $10.65M | 0.325% |
| EVLV Evolv Technologies Holdings, Inc. | +1.83M +146.0% | $10.59M | 0.544% |
| Holding | Change | Trade Value | Weight |
|---|---|---|---|
| ADTN ADTRAN Holdings, Inc. | -778.5K -63.4% | $10.82M | 0.191% |
| FORM Formfactor Inc | -56.0K -9.3% | $8.96M | 2.67% |
| ENTG Entegris Inc | -45.5K -38.9% | $8.18M | 0.393% |
| ASPN Aspen Aerogels Inc | -1.26M -27.8% | $7.98M | 0.631% |
| COHU Cohu Inc | -80.0K -61.5% | $5.91M | 0.113% |
| COHR Coherent Corp. | -13.0K -12.3% | $5.13M | 1.11% |
| MKSI Mks Inc | -7,750 -6.5% | $3.45M | 1.52% |
| VPG Vishay Precision Group, Inc. | -21.0K -3.4% | $3.15M | 2.74% |
| BFAM Bright Horizons Family Solutions Inc. | -39.0K -30.2% | $2.76M | 0.195% |
| VECO Veeco Instruments Inc | -34.2K -3.9% | $2.59M | 1.96% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| ELMT Elmet Group Co. | +2.64M | $52.10M | 1.59% |
| LTRX Lantronix Inc | +3.15M | $18.52M | 0.565% |
| FELE Franklin Electric Co Inc | +154.2K | $16.53M | 0.505% |
| DDD 3D Systems Corp | +3.53M | $10.65M | 0.325% |
| CALX Calix, Inc | +275.0K | $10.26M | 0.313% |
| PRIM Primoris Services Corp | +64.3K | $6.37M | 0.194% |
| OCTV Octave Intelligence plc | +300.0K | $4.89M | 0.149% |
| HONA Honeywell Aerospace Inc. | +20.0K | $4.42M | 0.135% |
| TWIN Twin Disc Inc | +150.0K | $3.48M | 0.106% |
| EROK EagleRock Land, LLC | +160.0K | $3.40M | 0.104% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| FIGR Figure Technology Solutions, Inc. | -72.4K | $2.46M | 0.13% |
| MXL Maxlinear, Inc | -115.0K | $2.00M | 0.106% |
| POWI Power Integrations Inc | -25.4K | $1.30M | 0.069% |
| PENG Penguin Solutions, Inc. | -50.0K | $880.00K | 0.047% |
| DD DuPont de Nemours, Inc. | -5,667 | $778.60K | 0.041% |
| EXTR Extreme Networks Inc | -45.0K | $678.60K | 0.036% |
| STRL Sterling Infrastructure, Inc. | -1,500 | $610.91K | 0.032% |
| CRCL Circle Internet Group, Inc. | -5,412 | $516.36K | 0.027% |
| FTRE Fortrea Holdings Inc. | -37.8K | $355.73K | 0.019% |
| UCTT Ultra Clean Holdings, Inc. | -5,000 | $310.90K | 0.016% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | VICR Vicor Corp | Industrials | 524.0K | $199.00M | 6.07% | +2,000 | +0.4% | Added | 1.14% |
| 2 | AIP Arteris, Inc. | Technology | 3.93M | $190.84M | 5.83% | -25.0K | -0.6% | Reduced | 8.01% |
| 3 | VSH Vishay Intertechnology Inc | Technology | 3.04M | $163.26M | 4.98% | +115.6K | +4.0% | Added | 2.23% |
| 4 | PDFS Pdf Solutions Inc | Technology | 2.07M | $146.18M | 4.46% | +42.3K | +2.1% | Added | 4.93% |
| 5 | LASR Nlight, Inc. | Industrials | 1.99M | $138.73M | 4.23% | +70.0K | +3.6% | Added | 3.46% |
| 6 | VRT Vertiv Holdings Co | Industrials | 285.8K | $95.67M | 2.92% | +500 | +0.2% | Added | 0.07% |
| 7 | VPG Vishay Precision Group, Inc. | Industrials | 599.0K | $89.80M | 2.74% | -21.0K | -3.4% | Reduced | 4.5% |
| 8 | FORM Formfactor Inc | Technology | 547.5K | $87.56M | 2.67% | -56.0K | -9.3% | Reduced | 0.7% |
| 9 | CECO Ceco Environmental Corp | Industrials | 957.5K | $86.88M | 2.65% | +570.0K | +147.1% | Added | 1.64% |
| 10 | ODC Oil-Dri Corp of America | Basic Materials | 686.0K | $70.12M | 2.14% | +8,500 | +1.3% | Added | 3.43% |
| 11 | TDUP ThredUp Inc. | Consumer Discretionary | 10.18M | $69.70M | 2.13% | +900.0K | +9.7% | Added | 7.75% |
| 12 | LINC Lincoln Educational Services Corp | Consumer Discretionary | 1.33M | $66.12M | 2.02% | +47.5K | +3.7% | Added | 4.18% |
| 13 | VECO Veeco Instruments Inc | Technology | 845.9K | $64.12M | 1.96% | -34.2K | -3.9% | Reduced | 1.38% |
| 14 | TTI Tetra Technologies Inc | Energy | 5.65M | $64.03M | 1.95% | +2.28M | +67.5% | Added | 3.82% |
| 15 | SMCI Super Micro Computer, Inc. | Technology | 1.86M | $54.51M | 1.66% | +242.0K | +15.0% | Added | 0.28% |
Tip. Select a row to see that position’s full history at Needham Investment Management.
As of its Q2 2026 13F filing, Needham Investment Management LLC’s five largest positions were Vicor Corp (VICR) at 6.1%, Arteris, Inc. (AIP) at 5.8%, Vishay Intertechnology Inc (VSH) at 5.0%, Pdf Solutions Inc (PDFS) at 4.5%, Nlight, Inc. (LASR) at 4.2% of the reported portfolio.
Needham Investment Management LLC reported a 13F portfolio worth $3.28B across 170 positions for Q2 2026. That is up 73.7% from the previous quarter.
Its largest purchases by value were Elmet Group Co. ($52.10M), Ceco Environmental Corp ($51.72M), Tetra Technologies Inc ($25.79M). It opened 12 new positions.
Its largest sales by value were ADTRAN Holdings, Inc. ($10.82M), Formfactor Inc ($8.96M), Entegris Inc ($8.18M). It exited 11 positions entirely.
From the Form 13F-HR reports Needham Investment Management LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.