# Mr Konstantin Amadeus Sietzy

## Details

- **Born:** 12/1993
- **Nationality:** German
- **Appointments:** 0 (0 active)
- **Control:** 2 holdings



## Control

| Company | Nature of control | Notified | Ceased |
|---|---|---|---|
| [Rethink Priorities UK Ltd](/company/14807023) | significant-influence-or-control | 3 Sep 2024 | 16 May 2025 |
| [80,000 Hours Limited](/company/15746854) | significant-influence-or-control | 19 Mar 2025 |  |