Private investorRegistered location :New York

Christopher BrownDeclared Swiss shareholdings

Christopher Brown: 3 Swiss companies with a declared holding, including Talenthouse AG, MindMaze Therapeutics Holding SA, GAM Holding AG. Latest filing: 06.02.2026.

Disclosure tracking · company alerts with Pro

Estimated value (CHF): …
Swiss companies held: 3
Largest position: 68,14 %; Talenthouse AG
12-month trend: Net reducer; 0 rate rises · 1 rate falls
Latest filing: 06.02.2026; Active since 2016

Declared Swiss portfolio

Latest declared rate per company

Sector allocation

Share of companies held

Talenthouse AG

68,14 %09.04.2022

MindMaze Therapeutics Holding SA

49,89 %06.02.2026

GAM Holding AG

5 %04.02.2023

How to read these figures?

Rates come from the 26 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 structure5 controls

Controls

Group entities linked to this shareholder in joint disclosures.

GEM Global Yield LLC SCS20 · 06.02.2026
GEM Global Yield Fund LLC SCS4 · 27.01.2021
Django Trading Sarl2 · 30.03.2017
GEM Global Yield Fund, LLC S.C.S2 · 30.03.2017
GEM Investments America, LLC1 · 27.01.2021

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: 21

90 days · Downward crossings

visible history: 0

First disclosure: 21.07.2016Last disclosure: 06.02.2026

Nature of disclosed positions

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

Equity holdings

Rights / derivatives

Declared Swiss portfolio

Sector allocation

Group structure

Controls

Disclosure behaviour

Nature of disclosed positions

Latest shareholding disclosures

Follow Christopher Brown’s disclosures

Management purchases in this portfolio

Common questions

Explore further

Recent insider purchases

Insider barometer