# Needham Growth Fund

Needham Growth Fund is a registered fund series of Needham Funds Inc (series S000003649). Net assets $185.8M as of 2026-03-31.

## Profile

- Series ID: S000003649
- Registrant: Needham Funds Inc
- LEI: 549300T5D2UHYI3DHM63
- Net assets: $185.8M
- Total assets: $186.0M
- As of: 2026-03-31

## Advisers

- [Needham Investment Management, LLC (Advisor)](https://search.stillhousedata.com/firm/106783)

## Top holdings (148 reported)

_Showing 15 of 148 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Dreyfus Treasury Securities Ca](https://search.stillhousedata.com/security/261941108) | DIRXX | $23.7M | 1274.05% |
| [Dreyfus Treasury Securities Ca](https://search.stillhousedata.com/security/261941108) | — | $23.7M | 1274.05% |
| [PDF Solutions Inc](https://search.stillhousedata.com/security/693282105) | — | $7.7M | 416.99% |
| [PDF Solutions Inc](https://search.stillhousedata.com/security/693282105) | PDFS | $7.7M | 416.99% |
| [FormFactor Inc](https://search.stillhousedata.com/security/346375108) | — | $7.2M | 389.00% |
| [FormFactor Inc](https://search.stillhousedata.com/security/346375108) | FORM | $7.2M | 389.00% |
| [Thermo Fisher Scientific Inc](https://search.stillhousedata.com/security/883556102) | — | $6.5M | 350.62% |
| [Thermo Fisher Scientific Inc](https://search.stillhousedata.com/security/883556102) | TMO | $6.5M | 350.62% |
| [Super Micro Computer Inc](https://search.stillhousedata.com/security/86800U302) | — | $6.3M | 337.10% |
| [Super Micro Computer Inc](https://search.stillhousedata.com/security/86800U302) | SMCI | $6.3M | 337.10% |
| [Vertiv Holdings Co](https://search.stillhousedata.com/security/92537N108) | — | $6.1M | 330.51% |
| [Vertiv Holdings Co](https://search.stillhousedata.com/security/92537N108) | VRT | $6.1M | 330.51% |
| [Corning Inc](https://search.stillhousedata.com/security/219350105) | GLW | $5.7M | 307.44% |
| [Corning Inc](https://search.stillhousedata.com/security/219350105) | — | $5.7M | 307.44% |
| [nVent Electric PLC](https://search.stillhousedata.com/security/G6700G107) | — | $5.6M | 299.28% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $185.8M |
| 2025-12-31 | $149.8M |
| 2025-09-30 | $152.0M |
| 2025-06-30 | $153.4M |
| 2025-03-31 | $143.3M |
| 2024-12-31 | $192.1M |
| 2024-09-30 | $231.7M |
| 2024-06-30 | $234.2M |

## More

- [Registrant: Needham Funds Inc](https://search.stillhousedata.com/registrant/1002537)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000003649.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.