---
schema_version: "secwatch.filing_event.v1"
accession: "0001517302-26-000100"
form_type: "8-K"
ticker: "APAM"
cik: "0001517302"
company_name: "Artisan Partners Asset Management Inc."
filed_at: "2026-06-05T20:23:37+00:00"
generated_at: "2026-06-05T20:33:58.839300+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Artisan Partners May AUM $186B; $5.7B sub-advisory mandate terminating in early June

## Summary
- Preliminary AUM as of May 31, 2026: $186.0B, split $92.3B funds and $93.7B separate accounts.
- A $5.7B U.S. sub-advisory mandate for Value Equity strategy expected to terminate in early June 2026.
- Revenue impact from mandate loss expected to be muted due to the nature of the mandate and associated fees.
- AUM includes $316.6M for which Artisan provides investment models to managed account sponsors (reported on a lag).

## SEC filing metadata
- accession: 0001517302-26-000100
- form_type: 8-K
- ticker: APAM
- cik: 0001517302
- company_name: Artisan Partners Asset Management Inc.
- filed_at: 2026-06-05T20:23:37+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1517302/000151730226000100/0001517302-26-000100-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1517302/000151730226000100/apam-20260605.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001517302-26-000100
- JSON: https://secwatch.observer/filing/0001517302-26-000100.json
- Plain text: https://secwatch.observer/filing/0001517302-26-000100.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.