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Antoine de BourgknechtDeclared Swiss shareholdings

Antoine de Bourgknecht: 0 Swiss companies with a declared holding.

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Estimated value (CHF)
—
Swiss companies held
0
Largest position
—
12-month trend
Not determinable
0 rate rises · 0 rate falls
Latest filing
…

Declared Swiss portfolio

Latest declared rate per company

No active declared position.

How to read these figures?

Rates come from the 3 official filings published by SIX Exchange Regulation. A filing is only required when a threshold is crossed (3, 5, 10, 15, 20, 25, 33⅓, 50, 66⅔%): the actual position may have changed since.

Estimated value = shares held per the latest filing × latest CHF closing price. It is an indicative order of magnitude: the position may have changed without a new threshold being crossed, and holdings without a share count or a CHF price are not valued. Each company's mini-chart traces the successive declared rates.

This profile shows only what the declarant published. No external data is added to it.

Group structure

Shareholding disclosures are often filed jointly by several entities of the same group. The registry links them together: "Controls" lists the group entities declared alongside this shareholder, "Controlled by" the head entities. The figure is the number of joint disclosures, followed by the date of the most recent one.

Show group structure25 controlled by

Controlled by

Group entities that file jointly with this shareholder as its head.

This mapping reflects observed disclosures; it does not necessarily indicate permanent legal control.

Disclosure behaviour

Upward and downward threshold crossings show direction, without measuring daily trades below legal thresholds.

90 days · Upward crossings

0

visible history: 0

90 days · Downward crossings

0

visible history: 0

First disclosure: —Last disclosure: —

Latest shareholding disclosures

PurchaseShareholdings

DSM-Firmenich AG

Antoine de Bourgknecht · Group of shareholders

23.591%Voting rights acquired30.06.2026
PurchaseShareholdings

DSM-Firmenich AG

Antoine de Bourgknecht · Group of shareholders

23.591%Voting rights acquired26.06.2026
PurchaseShareholdings

DSM-Firmenich AG

Antoine de Bourgknecht · Group of shareholders

23.591%Voting rights acquired30.05.2026

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Common questions

Which Swiss companies are in Antoine de Bourgknecht’s disclosed portfolio?

No active holding identified in available disclosures.

What is Antoine de Bourgknecht’s latest disclosure?

The latest available disclosure was published on 30.06.2026 and concerns DSM-Firmenich AG. Threshold disclosures do not describe every purchase or sale.

Explore further

Recent insider purchases

What are insiders doing at companies disclosed by this shareholder?

All purchases this week

Insider barometer

Compare insider purchases and sales across the Swiss stock exchange over 30 days.

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These signals are not investment advice.