StockDriftsStockDriftsTop 50 Needham Investment Management LLC Holdings
| Stock | Company | % Port. | Shares | Value | Activity | Ownership | Avg. Cost | Date |
|---|---|---|---|---|---|---|---|---|
| VICR | VICOR CORP | 5.98% | 524.0K | $199.0M | +0.38%(+2.00K) | $45.56(+415.26%) | 2026-06-30 | |
| AIP | ARTERIS INC | 5.74% | 3.93M | $190.8M | -0.63%(-25.00K) | $8.55(+231.27%) | 2026-06-30 | |
| VSH | VISHAY INTERTECHNOLOGY INC | 4.91% | 3.04M | $163.3M | +3.96%(+115.61K) | $19.08(+83.88%) | 2026-06-30 | |
| PDFS | PDF SOLUTIONS INC | 4.4% | 2.06M | $146.2M | +2.09%(+42.30K) | $26.97(+88.74%) | 2026-06-30 | |
| LASR | NLIGHT INC | 4.17% | 1.99M | $138.7M | +3.64%(+70.00K) | $17.03(+208.93%) | 2026-06-30 | |
| VRT | VERTIV HOLDINGS CO | 2.88% | 285.8K | $95.7M | +0.18%(+500) | $33.10(+793.88%) | 2026-06-30 | |
| VPG | VISHAY PRECISION GROUP INC | 2.7% | 599.0K | $89.8M | -3.39%(-21.00K) | $33.16(+119.29%) | 2026-06-30 | |
| FORM | FORMFACTOR INC | 2.63% | 547.5K | $87.6M | -9.28%(-56.00K) | $27.89(+371.83%) | 2026-06-30 | |
| CECO | CECO ENVIRONMENTAL CORP | 2.61% | 957.5K | $86.9M | +147.10%(+570.00K) | $63.96(+27.77%) | 2026-06-30 | |
| ODC | OIL DRI CORP AMER | 2.11% | 686.0K | $70.1M | +1.25%(+8.50K) | $35.56(+145.92%) | 2026-06-30 |
| Performance Metric | 3-Year Annualized | 3-Year Cumulative | 5-Year Annualized | 5-Year Cumulative |
|---|---|---|---|---|
| Top 20 Holdings Weighted | +47.25% | +219.24% | +25.81% | +215.19% |
| Top 20 Holdings Unweighted | +43.03% | +192.62% | +21.58% | +165.70% |
Needham Investment Management LLC reports $3.33B in US-listed equity holdings across 176 positions in its most recent 13F filing. Its largest disclosed positions are VICR (6.0%), AIP (5.7%) and VSH (4.9%). The top 20 holdings account for 54.15% of reported assets. Its disclosed equity book has returned +219.24% on a three-year cumulative basis. Figures reflect the Q2 2026 filing.
Portfolio changes
Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.
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Holdings on this page are parsed from Needham Investment Management LLC’s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1167212). View Needham Investment Management LLC’s 13F filings on SEC