Artisan Partners Reports August AUM and Upcoming $6 Billion Mandate Reduction

Artisan Partners Asset Management (APAM) reported preliminary assets under management (AUM) of $183.5 billion as of August 31, 2026. The company also disclosed that a long-standing sub-advisory client is diversifying its mandate from a single-manager to a multi-manager structure. This change is expected to result in a significant asset rebalancing in September 2026.

Key Details

• Preliminary AUM: $183.5 billion as of August 31, 2026.
• Mandate Change: A sub-advisory client is shifting to a multi-manager structure, with Artisan remaining as one of three managers.
• Expected Outflow: The change will result in an approximate $6 billion rebalancing out of the firm's Global Value strategy in September 2026.
• Revenue Impact: The company noted that the anticipated impact on revenues is expected to be proportionally less than the reduction in assets under management.