ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED is a Private limited company (Ltd.) registered in Ireland under IE528478, and its current status with Companies Registration Office (CRO) is active. The company was incorporated on 5 June 2013 and lists its registered address as DUBLIN 15, Ireland. 2 shareholders are on record for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Companies Registration Office (CRO) and was last updated on 29 September 2026.
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Shareholders
2
Shareholders of ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED
Two shareholders are currently on record for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED, held on the Annual Return (Form B1), filed under section 342 of the Companies Act 2014. The largest of these is ALEXION PHARMA HOLDING LIMITED, holding 100% — a majority holding — followed by ALEXION BERMUDA HOLDING ULC at 0%. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Data-provider feed — rows as supplied to Zavia for Companies Registration Office (CRO), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| ALEXION PHARMA HOLDING LIMITED | 100% | Companies Registration Office (CRO) | |
| ALEXION BERMUDA HOLDING ULC | 0% | Companies Registration Office (CRO) |
Officers
5
Directors and officers of ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED
No current officer appointment is recorded for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED in this view — all 5 records shown are former appointments, filed with Companies Registration Office (CRO). Management authority at ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control. The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Data availability
The register reports 24 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Data-provider feed — rows as supplied to Zavia for Companies Registration Office (CRO), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
Group Structure
Group structure of ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED sits 5 levels below its ultimate parent, ASTRAZENECA PLC, registered in United Kingdom. Immediately above ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED is ALEXION PHARMA HOLDING LIMITED, holding 100% as filed in ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's own shareholder record with Companies Registration Office (CRO). ASTRAZENECA PLC sits further up the chain, a link derived by walking shareholder filings across jurisdictions rather than stated in a single document.
Data-provider feed — rows as supplied to Zavia for Companies Registration Office (CRO), including entries the profile above does not cover. These rows are not a verbatim copy of the register: they have been found to duplicate the same person under different spellings and to keep a status of Active after an appointment ended. Where they disagree with the profile above, the profile is the checked version.
ASTRAZENECA PLC
United Kingdom
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Frequently Asked Questions
Who owns ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED?
Two shareholders are currently on record for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED, held on the Annual Return (Form B1), filed under section 342 of the Companies Act 2014. The largest of these is ALEXION PHARMA HOLDING LIMITED, holding 100% — a majority holding — followed by ALEXION BERMUDA HOLDING ULC at 0%. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED have on record?
2 shareholders are shown on record for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED.
What is ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's company registration number?
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's registration number is IE528478, filed with Companies Registration Office (CRO) in Ireland. Its current status on the register is active.
Is ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED still an active company?
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's status on Companies Registration Office (CRO) is listed as active.
When was ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED incorporated?
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED was incorporated on 5 June 2013, according to Companies Registration Office (CRO).
What is ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's registered address?
The registered address on file for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED is DUBLIN 15, Ireland.
What legal structure is ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED registered as?
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED is registered as a Private limited company (Ltd.) in Ireland.
Who are the officers/directors of ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED?
No current officer appointment is recorded for ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED in this view — all 5 records shown are former appointments, filed with Companies Registration Office (CRO). Management authority at ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED have a parent company or subsidiaries?
ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED sits 5 levels below its ultimate parent, ASTRAZENECA PLC, registered in United Kingdom.
Can Zavia monitor changes to ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies Registration Office (CRO). Zavia's monitoring API can track changes to ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Ireland, so records like ALEXION PHARMA INTERNATIONAL OPERATIONS LIMITED's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Companies Registration Office (CRO) and was last synced on 29 September 2026.