# Micron Technology (MU): value investors who own it

4 value investors held Micron Technology in their Q3 2026 13F, led by Appaloosa, Ruane, Cunniff & Goldfarb (Sequoia), Harris Associates (Oakmark), Mairs…

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Appaloosa | 14.6% | $1.1bn | Trimmed -41% | 13 |
| Ruane, Cunniff & Goldfarb (Sequoia) | 0.0% | $2.5m | Unchanged | 5 |
| Harris Associates (Oakmark) | 0.0% | $208k | New | 1 |
| Mairs & Power | 0.0% | $473k | Trimmed -41% | 2 |

## Directors buying and selling (Form 4, last 12 months)

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-10-16 | Deboer Scott J | Pres. & Chief Tech & Prod Offr | Sold | 28444 | $25.6m |
| 2026-10-16 | Deboer Scott J | Pres. & Chief Tech & Prod Offr | Sold | 100 | $90k |
| 2026-10-16 | Deboer Scott J | Pres. & Chief Tech & Prod Offr | Sold | 0.572 | $1k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 560 | $526k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 488 | $446k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 480 | $442k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 400 | $369k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 320 | $302k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 320 | $296k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 280 | $263k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 240 | $227k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 240 | $223k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 240 | $223k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $189k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $188k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $187k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $185k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $185k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $184k |
| 2026-10-14 | RAY MICHAEL CHARLES | SVP, Chief Legal Officer | Sold | 200 | $184k |

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