APAM ▼ -1.3% - Artisan Partners Asset Management Inc. $APAM - Artisan Partners Asset Management Inc. Reports August 2026 Assets Under Management Artisan Partners Asset Management reported its August 2026 assets under management figures today, and shares fell 1.3%. The headline does not specify whether AUM increased or decreased, or provide details on the company's performance metrics that would explain the decline. 10-SEP-2026 04:16 PM ET