Kuros Biosciences Ag
Kuros Biosciences Ag is a Private limited company (Ltd.) registered in Switzerland under CHE104785642, and its current status with Zefix — Swiss Central Business Names Index is active. The company was incorporated on 3 March 1995 and lists its registered address as Schlieren, Switzerland. 5 shareholders are on record for Kuros Biosciences Ag, 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 Zefix — Swiss Central Business Names Index and was last updated on 28 September 2026.
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Shareholders
5
Five shareholders are currently on record for Kuros Biosciences Ag, reflecting the Aktienbuch (share register) maintained under Article 686 of the Swiss Code of Obligations rather than a public filing.
The largest of these is iShares Trust-iShares MSCI EAFE Small-Cap ETF, holding 14.3% — the largest recorded stake — followed by iShares Trust-iShares MSCI EAFE Small-Cap ETF at 13.6%; the remaining 3 shareholders shown hold smaller stakes.
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.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| iShares Trust-iShares MSCI EAFE Small-Cap ETF | 14.3% | Zefix — Swiss Central Business Names Index | |
| iShares Trust-iShares MSCI EAFE Small-Cap ETF | 13.6% | Zefix — Swiss Central Business Names Index | |
| INVESTMENT MANAGERS SERIES TRT-WCM Intl Small Cap Growth Fd. | 13.4% | Zefix — Swiss Central Business Names Index | |
| American Century World Mutual Fd.s, Inc.-Intl OPPORTUNITIES Fd. | 11.5% | Zefix — Swiss Central Business Names Index | |
| iShares Trust-iShares International Small-Cap Equity Factor ETF | 1.8% | Zefix — Swiss Central Business Names Index |
Officers
5
The Ceo & Director of Kuros Biosciences Ag currently on record is Christopher T. Fair B.b.a.; five officers are currently on record for Kuros Biosciences Ag, filed with Zefix — Swiss Central Business Names Index.
The register reports 19 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at Kuros Biosciences Ag 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.
Group Structure
Kuros Biosciences Ag has no recorded parent company — it sits at the top of its own group structure, with 2 subsidiaries recorded beneath it across 3 jurisdictions. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 2 subsidiaries span Switzerland, Netherlands, United States jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 2 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Kuros Biosciences Ag
Switzerland
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Frequently Asked Questions
Who owns Kuros Biosciences Ag?
Five shareholders are currently on record for Kuros Biosciences Ag, reflecting the Aktienbuch (share register) maintained under Article 686 of the Swiss Code of Obligations rather than a public filing. The largest of these is iShares Trust-iShares MSCI EAFE Small-Cap ETF, holding 14.3% — the largest recorded stake — followed by iShares Trust-iShares MSCI EAFE Small-Cap ETF at 13.6%; the remaining 3 shareholders shown hold smaller stakes. 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 Kuros Biosciences Ag's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Kuros Biosciences Ag 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 Kuros Biosciences Ag have on record?
5 shareholders are shown on record for Kuros Biosciences Ag.
What is Kuros Biosciences Ag's company registration number?
Kuros Biosciences Ag's registration number is CHE104785642, filed with Zefix — Swiss Central Business Names Index in Switzerland. Its current status on the register is active.
Is Kuros Biosciences Ag still an active company?
Kuros Biosciences Ag's status on Zefix — Swiss Central Business Names Index is listed as active.
When was Kuros Biosciences Ag incorporated?
Kuros Biosciences Ag was incorporated on 3 March 1995, according to Zefix — Swiss Central Business Names Index.
What is Kuros Biosciences Ag's registered address?
The registered address on file for Kuros Biosciences Ag is Schlieren, Switzerland.
What legal structure is Kuros Biosciences Ag registered as?
Kuros Biosciences Ag is registered as a Private limited company (Ltd.) in Switzerland.
Who are the officers/directors of Kuros Biosciences Ag?
The Ceo & Director of Kuros Biosciences Ag currently on record is Christopher T. Fair B.b.a.; five officers are currently on record for Kuros Biosciences Ag, filed with Zefix — Swiss Central Business Names Index. Management authority at Kuros Biosciences Ag sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Kuros Biosciences Ag have a parent company or subsidiaries?
Kuros Biosciences Ag has no recorded parent company — it sits at the top of its own group structure, with 2 subsidiaries recorded beneath it across 3 jurisdictions. Those 2 subsidiaries span Switzerland, Netherlands, United States jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 2 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to Kuros Biosciences Ag's ownership over time?
This profile reflects a point-in-time snapshot from Zefix — Swiss Central Business Names Index. Zavia's monitoring API can track changes to Kuros Biosciences Ag's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Kuros Biosciences Ag's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Switzerland, so records like Kuros Biosciences Ag'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 Zefix — Swiss Central Business Names Index and was last synced on 28 September 2026.