Form4insider filings, from the source

SEC Form 4/A · accession 0001004434-26-000105

AFFILIATED MANAGERS GROUP, INC. · AMG

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

This is an amendment (Form 4/A). It replaces an earlier filing for the same period.
Reporting owner
Period of report
Aug 15, 2026
Accepted (ET)
Sep 25, 2026 · 5:01 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001004434

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1Aug 15, 2026M848$0.00A5,217D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Stock UnitsF1—Aug 15, 2026M848D——Common Stock848933D

Explanation of responses

Remarks

This Amendment is being filed solely to correct a clerical error related to the number of shares vested, and the resulting beneficial ownership reported, in the reporting person's original Form 4.