Form4insider filings, from the source

Company · CIK 0001004434 · SIC 6282 — Investment Advice · NYSE

AFFILIATED MANAGERS GROUP, INC. · AMG

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 15, 2026 MForm 4/A →Sep 25, 5:01 pm EDTRodriguez Felix Matos VDirector848——5,217—
Aug 15, 2026 MForm 4 →Aug 18, 5:04 pm EDTAnnette FranquiDirector477——2,439—
Aug 15, 2026 MForm 4 →Aug 18, 5:03 pm EDTRodriguez Felix Matos VDirector654——5,023— amended
Aug 15, 2026 MForm 4 →Aug 18, 5:02 pm EDTLoren M StarrDirector716——2,653—
Aug 15, 2026 MForm 4 →Aug 18, 5:01 pm EDTTracy P. PalandjianDirector848——18,375—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 15, 2026 MForm 4/A →Sep 25, 5:01 pm EDTRodriguez Felix Matos VDirector848——933—
Aug 15, 2026 MForm 4 →Aug 18, 5:04 pm EDTAnnette FranquiDirector477——609—
Aug 15, 2026 MForm 4 →Aug 18, 5:03 pm EDTRodriguez Felix Matos VDirector654——1,127— amended
Aug 15, 2026 MForm 4 →Aug 18, 5:02 pm EDTLoren M StarrDirector716——3,027—
Aug 15, 2026 MForm 4 →Aug 18, 5:01 pm EDTTracy P. PalandjianDirector848——1,731—
Jul 30, 2026 AForm 4 →Aug 3, 5:10 pm EDTLoren M StarrDirector621——210—
Jul 30, 2026 AForm 4 →Aug 3, 5:08 pm EDTAnnette FranquiDirector274——274—
Jul 30, 2026 AForm 4 →Aug 3, 5:06 pm EDTTracy P. PalandjianDirector274——274—
Jul 30, 2026 AForm 4 →Aug 3, 5:04 pm EDTRodriguez Felix Matos VDirector274——274—
Jul 30, 2026 AForm 4 →Aug 3, 5:02 pm EDTMarcy EngelDirector274——274—
Jul 30, 2026 AForm 4 →Aug 3, 5:00 pm EDTG. Staley CatesDirector274——274—