Corporate Ownership
Who owns Callstack?
Based on verified 2026 market intelligence, Callstack operates as an independent company without a majority parent organization. Significant institutional investors and major shareholders include Viking Global.
Institutional Investors & Major Shareholders
Significant asset management firms, investment funds, and equity stakeholders tracked via regulatory filings.
VI
Viking Global
Institutional Investor
Global investment firm managing public, private, credit and structured-capital strategies.
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