# Ambarella (AMBA): value investors who own it | moatshark

1 value investor held Ambarella in their Q3 2026 13F, led by Mairs & Power. See who bought, sold and how ownership has changed by quarter.

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Mairs & Power | 0.1% | $10.8m | Added +7.5% | 2 |

## Fund holders

| Fund | Manager | Weight | Value | As at |
| --- | --- | --- | --- | --- |
| Mairs & Power Small Cap Fund | Mairs & Power | 4.0% | $10.8m | 2026-06-30 |

Source: SEC filings, via moatshark (https://www.moatshark.com/s/amba). Values traded and returns are estimates. Not investment advice. Built 2026-10-21.