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Abingworth Avillion Blocker Limited

Abingworth Avillion Blocker Limited is an active UK company (number 08298936), incorporated 2012, with 3 current directors including Andrew John Howlett-Bolton and Robert William Rosen. Source: Companies House, updated 4th October 2026.

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Official record Companies House · updated 4th October 2026 · Sources

Network

The large node is Abingworth Avillion Blocker Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 5

  1. John Grayson Heard 2025-2025 Director View profile
  2. Neil Antony Cooper 2019-2025 Director View profile
  3. Dr Quentin Lionel Genghis Lloyd Harris 2012-2023 Director View profile
  4. James Foster Abell 2012-2019 Director View profile
  5. John Heard 2012-2025 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
19/11/2012

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

Group

  1. Abingworth Avillion Blocker Limited is controlled by Abingworth Bioventures VI GP LP
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  2. Abingworth Bioventures VI GP LP is controlled by Abingworth General Partner VI LLP
    Evidence
    active right to appoint and remove person · notified 2017-06-26 · source: Companies House PSC register
  3. Abingworth General Partner VI LLP is controlled by Abingworth Bioventures GP Limited
    Evidence
    active 75-100% voting (LLP), 25-50% surplus assets (LLP) · notified 2016-04-06 · source: Companies House PSC register
  4. Abingworth Bioventures GP Limited is controlled by Abingworth LLP
    Evidence
    ceased 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06, ceased 2022-08-01 · source: Companies House PSC register
  5. Abingworth LLP is controlled by Timothy John Haines
    Evidence
    ceased 25-50% voting (LLP) · notified 2019-12-10, ceased 2022-08-01 · source: Companies House PSC register

Ultimately controlled by Timothy John Haines.

21 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

3 directors on the board

1.3y median 1.3y
average tenure
1.3y
longest tenure
0
directors past 6 years

First-time vs portfolio directors

Portfolio (3)

0
also govern a charity
2
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Finance 10Professional services 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
08298936
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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