SEC Form 4 · accession 0001004434-26-000090
AFFILIATED MANAGERS GROUP, INC. · AMG
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Loren M Starr
Director
Period of report
Jul 30, 2026
Accepted (ET)
Aug 3, 2026 · 5:10 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001004434
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock UnitsF1 | — | Jul 30, 2026 | A | 411 | A | — | — | Common Stock | 411 | 411 | D |
| Deferred Stock UnitsF2 | — | Jul 30, 2026 | A | 210 | A | — | — | Common Stock | 210 | 210 | D |
Explanation of responses
- F1Each stock unit represents a right to receive one share of the Company's common stock upon vesting. The stock units vest in full on August 15, 2027.
- F2Reflects cash fees that the director has elected to defer under the Company's deferred compensation plan, which are notionally invested in a measurement fund tracking the Company's common stock during the deferral period. Each deferred stock unit is equal to one share of the Company's common stock, and becomes distributable in common stock upon the reporting person's separation from service as a member of the Board of Directors of the Company.