Private investorRegistered location :Zurich

Patrick BierbaumDeclared Swiss shareholdings

Patrick Bierbaum: 1 Swiss companies with a declared holding, including Ascom Holding AG. Latest filing: 27.09.2024.

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Estimated value (CHF): …
Swiss companies held: 1
Largest position: 2,98 %; Ascom Holding AG
12-month trend: Not determinable; 0 rate rises · 0 rate falls
Latest filing: 27.09.2024; Active since 2017

Declared Swiss portfolio

Latest declared rate per company

Sector allocation

Share of companies held

Ascom Holding AG

2,98 %04.08.2018

How to read these figures?

Rates come from the 27 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 structure10 controls

Controls

Group entities linked to this shareholder in joint disclosures.

Leveraged Event Fund LP21 · 27.09.2024
PB Investment Ltd16 · 27.09.2024
PSquared Master SICAV Ltd15 · 29.08.2023
PSquared Master SICAV Ltd on behalf of its subfund4 · 18.11.2022
PSquared Master SICAV Ltd on behalf of its subfund Event Opportunity Master Fund4 · 27.09.2024
BlueHarbour MAP 1 LP3 · 27.09.2024
Leveraged Event Fund LP, Grand Cayman, Cayman Islands3 · 30.10.2020
PSquared Master SICAV Ltd on behalf of its sub-fund Event3 · 30.10.2020
Managed Account Master Fund Service1 · 10.11.2017
PSquared Master SICAV subfund Event Opportunity MasterFund1 · 10.11.2017

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

visible history: 19

90 days · Downward crossings

visible history: 1

First disclosure: 10.11.2017Last disclosure: 27.09.2024

Nature of disclosed positions

Derivatives, sale positions or lending may indicate a more complex strategy than a long equity holding.

Equity holdings

Rights / derivatives

Sale positions

Latest shareholding disclosures

Below thresholdShareholdings

DocMorris AG

Patrick Bierbaum · Group of shareholders

Declared Swiss portfolio

Sector allocation

Group structure

Controls

Disclosure behaviour

Nature of disclosed positions

Latest shareholding disclosures

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Management purchases in this portfolio

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