# Needham Aggressive Growth Fund

Needham Aggressive Growth Fund is a registered fund series of Needham Funds Inc (series S000003815). Net assets $1.6B as of 2026-03-31.

## Profile

- Series ID: S000003815
- Registrant: Needham Funds Inc
- LEI: 549300BQ1XTH5R34Z698
- Net assets: $1.6B
- Total assets: $1.6B
- As of: 2026-03-31

## Advisers

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

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Dreyfus Treasury Securities Ca](https://search.stillhousedata.com/security/261941108) | DIRXX | $109.3M | 694.52% |
| [Dreyfus Treasury Securities Ca](https://search.stillhousedata.com/security/261941108) | — | $109.3M | 694.52% |
| [nLight Inc](https://search.stillhousedata.com/security/65487K100) | — | $95.0M | 603.59% |
| [nLight Inc](https://search.stillhousedata.com/security/65487K100) | LASR | $95.0M | 603.59% |
| [Vicor Corp](https://search.stillhousedata.com/security/925815102) | VICR | $76.5M | 485.86% |
| [Vicor Corp](https://search.stillhousedata.com/security/925815102) | — | $76.5M | 485.86% |
| [Vertiv Holdings Co](https://search.stillhousedata.com/security/92537N108) | VRT | $65.3M | 415.11% |
| [Vertiv Holdings Co](https://search.stillhousedata.com/security/92537N108) | — | $65.3M | 415.11% |
| [PDF Solutions Inc](https://search.stillhousedata.com/security/693282105) | — | $51.9M | 329.90% |
| [PDF Solutions Inc](https://search.stillhousedata.com/security/693282105) | PDFS | $51.9M | 329.90% |
| [Lincoln Educational Services C](https://search.stillhousedata.com/security/533535100) | LINC | $51.9M | 329.52% |
| [Lincoln Educational Services C](https://search.stillhousedata.com/security/533535100) | — | $51.9M | 329.52% |
| [Arteris Inc](https://search.stillhousedata.com/security/04302A104) | — | $51.0M | 323.79% |
| [Arteris Inc](https://search.stillhousedata.com/security/04302A104) | AIP | $51.0M | 323.79% |
| [Oil-Dri Corp of America](https://search.stillhousedata.com/security/677864100) | — | $43.9M | 279.13% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $1.6B |
| 2025-12-31 | $1.2B |
| 2025-09-30 | $1.1B |
| 2025-06-30 | $829.7M |
| 2025-03-31 | $665.1M |
| 2024-12-31 | $816.7M |
| 2024-09-30 | $846.0M |
| 2024-06-30 | $807.5M |

## More

- [Registrant: Needham Funds Inc](https://search.stillhousedata.com/registrant/1002537)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000003815.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.