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AMG · CUSIP 008252108

Affiliated Managers Group, Inc.

Reported by 3 of 79 curated managers in Q2 2026, in the holdings snapshot last exported 2026-10-26.

Managers holding
3
Average portfolio weight
1.2%
Combined reported value
$340.4M
Research group
79

3 of the 79 superinvestors Shameless Cloning tracks reported Affiliated Managers Group, Inc. (AMG) in their Q2 2026 13F filings, worth $340.4M combined, at an average 1.2% of their portfolios. The largest positions by portfolio weight belong to John Rogers (3.4%), Mason Hawkins (0.1%), Dodge & Cox Funds (0.0%).

Reporting managers

This is a historical 13F snapshot, not a live shareholder register. The count covers all matched managers; dashboard rankings use only those with at least 95% coverage. Reported value is measured at filing quarter-end, not at today's price.

Managers reporting Affiliated Managers Group, Inc.
Manager / SEC filer% of portfolioReported value
John RogersARIEL INVESTMENTS, LLC3.4%$338.3M
Mason HawkinsSOUTHEASTERN ASSET MANAGEMENT INC/TN/0.1%$1.9M
Dodge & Cox FundsDodge & Cox0.0%$203K