Over the last 12 months, Affiliated Managers Group insiders reported 1 buy totaling $229K and 1 sale totaling $5.9M across SEC Form 4 filings.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 8, 2026 | Horgen Jay C.President and CEO · O·D | ▼ Sale | 17,500 | $338.27 | $5.9M | -7.9% | — |
| Jun 1, 2026 | FRANQUI ANNETTED | ▲ Buy | 750 | $304.88 | $229K | +61.9% | — |
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $AMG feed.