Partial History | Date | Event | Region |
| Thursday, January 9, 1992 | Appointment as Director | Cambridgeshire |
| Friday, June 26, 1992 | Appointment as Director | Cambridgeshire |
| Tuesday, November 22, 1994 | Appointment as Director | Cambridgeshire |
| Wednesday, February 15, 1995 | Appointment as Director | Cambridgeshire |
| Friday, February 17, 1995 | Appointment as Director | Cambridgeshire |
| Friday, December 27, 1996 | Appointment as Director | Cambridgeshire |
| Friday, January 10, 1997 | Appointment as Director | Cambridgeshire |
| Wednesday, March 26, 1997 | Appointment as Director | Cambridgeshire |
| Monday, June 23, 1997 | Appointment as Director | Cambridgeshire |
| Wednesday, February 28, 2001 | Appointment as Director | Cambridgeshire |
| Tuesday, May 22, 2001 | Appointment as Director | Cambridgeshire |
| Wednesday, October 24, 2007 | Appointment as Director | Cambridgeshire |
| Wednesday, February 18, 2009 | Appointment as Director | Cambridgeshire |
| Friday, March 4, 2016 | Appointment as Director | Cambridgeshire |
| Wednesday, April 6, 2016 | Appointment as Individual or entity with right to appoint and remove directors,Individual or entity with significant influence or control,Shareholder (above 75%) and Individual or entity with more than 75% of voting rights | Cambridgeshire |
| Wednesday, July 10, 2019 | Resignation as Director and Individual or entity with right to appoint and remove directors | Cambridgeshire |
| Monday, August 7, 2023 | Resignation as Individual or entity with significant influence or control and Shareholder (above 75%) | Cambridgeshire |
