# Rubrik (RBRK): value investors who own it | moatshark

1 value investor held Rubrik in their Q3 2026 13F, led by Polen Capital Management. See who bought, sold and how ownership has changed by quarter.

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Polen Capital Management | 0.0% | $498k | New | 1 |

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

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-10-07 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 8274 | $1.0m |
| 2026-10-07 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 3055 | $381k |
| 2026-10-07 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 1478 | $182k |
| 2026-10-07 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 13 | $2k |
| 2026-10-06 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 11101 | $1.4m |
| 2026-10-06 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 1069 | $136k |
| 2026-10-06 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 582 | $73k |
| 2026-10-06 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 68 | $9k |
| 2026-10-05 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 5600 | $689k |
| 2026-10-05 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 2913 | $361k |
| 2026-10-05 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 2801 | $342k |
| 2026-10-05 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 901 | $109k |
| 2026-10-05 | Wassenaar Yvonne | Director | Sold | 721 | $86k |
| 2026-10-05 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 495 | $59k |
| 2026-10-05 | Nithrakashyap Arvind | Chief Technology Officer | Sold | 110 | $13k |
| 2026-10-01 | THOMPSON JOHN WENDELL | Director | Sold | 7710 | $891k |
| 2026-10-01 | THOMPSON JOHN WENDELL | Director | Sold | 2394 | $279k |
| 2026-10-01 | THOMPSON JOHN WENDELL | Director | Sold | 1700 | $197k |
| 2026-10-01 | THOMPSON JOHN WENDELL | Director | Sold | 896 | $103k |
| 2026-10-01 | THOMPSON JOHN WENDELL | Director | Sold | 500 | $58k |

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