# Amentum Holdings (AMTM): value investors who own it

1 value investor held Amentum Holdings in their Q3 2026 13F, led by Ruane, Cunniff & Goldfarb (Sequoia).

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Ruane, Cunniff & Goldfarb (Sequoia) | 0.2% | $11.1m | Trimmed -67% | 8 |

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