# Dr David Martinsen

## Details

- **Born:** 1/1951
- **Nationality:** American
- **Appointments:** 0 (0 active)
- **Control:** 2 holdings



## Control

| Company | Nature of control | Notified | Ceased |
|---|---|---|---|
| [Ccdc Services Limited](/company/03483374) | significant-influence-or-control | 18 May 2020 | 20 May 2022 |
| [The Cambridge Crystallographic Data Centre](/company/02155347) | significant-influence-or-control | 16 May 2016 | 21 Dec 2023 |