Private company

BlueMountain Capital

American investment firm

Assured Investment Management (AIM) was an institutional asset management firm with a heritage in credit strategies, managing approximately $15.2 billion as of its defunct status in July 2023. Secondaries Investors referred to AIM as "one of the world's most prominent hedge funds".2 It was founded by Stephen Siderow.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2003Founded1

Assured Investment Management (AIM) was an institutional asset management firm with a heritage in credit strategies, managing approximately $15.2 billion as of its defunct status in July 2023. Secondaries Investors referred to AIM as "one of the world's most prominent hedge funds".2

The story

Founded by Stephen Siderow in 2003.1

Leadership

Who has led BlueMountain Capital, and when. Pick a name to see everywhere that person has worked.

Products and brands

  • investment management

Listed on Wikidata.1

Timeline

  1. 2003Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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  2. 2