# Blackstone (BX): value investors who own it | moatshark

4 value investors held Blackstone in their Q3 2026 13F, led by Markel Group, Kahn Brothers, Horizon Kinetics, Harris Associates (Oakmark).

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Markel Group | 1.1% | $145m | Unchanged | 28 |
| Kahn Brothers | 0.0% | $271k | Unchanged | 6 |
| Horizon Kinetics | 0.0% | $599k | Unchanged | 28 |
| Harris Associates (Oakmark) | 0.0% | $441k | Unchanged | 3 |

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

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-09-18 | Baratta Joseph | Director | Sold | 57754 | $7.2m |
| 2026-09-18 | Baratta Joseph | Director | Sold | 42246 | $5.2m |
| 2026-08-11 | Finley John G | Chief Legal Officer | Sold | 25198 | $3.7m |
| 2026-08-11 | Finley John G | Chief Legal Officer | Sold | 19802 | $2.9m |
| 2026-08-11 | Payne David | Chief Accounting Officer | Sold | 9500 | $1.4m |
| 2026-08-10 | Porat Ruth | Director | Bought | 245.0201 | $34k |
| 2026-08-10 | Porat Ruth | Director | Bought | 126.071 | $17k |
| 2026-08-10 | Porat Ruth | Director | Bought | 84.047 | $12k |
| 2026-08-04 | Sawhney Vikrant | Chief Administrative Officer | Sold | 18408 | $2.5m |
| 2026-08-04 | Sawhney Vikrant | Chief Administrative Officer | Sold | 11592 | $1.6m |

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