Insider holders · CIK 0001004434
AFFILIATED MANAGERS GROUP, INC. · AMG
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Jay C. HorgenPresident and CEO | 204,706 | 350,000 | 554,706 | Jun 8, 2026 · 7:23 pm EDT | Form 4 |
| Nathaniel DaltonPresident and CEO | 231,346 | 0 | 231,346 | Feb 7, 2019 · 5:31 pm EST | Form 4 |
| Sean M HealeyExecutive Chairman | 162,393 | — | 162,393 | Feb 7, 2019 · 5:30 pm EST | Form 4 |
| William J NuttDirector | 131,478 | — | 131,478 | May 5, 2015 · 5:05 pm EDT | Form 4 |
| Jide James ZeitlinDirector | 74,396 | — | 74,396 | Dec 14, 2018 · 5:07 pm EST | Form 4 |
| Peter W MacEwenChief Administrative Officer | 26,135 | — | 26,135 | Jan 3, 2018 · 6:39 pm EST | Form 4 |
| Tracy P. PalandjianDirector | 18,375 | — | 18,375 | Aug 18, 2026 · 5:01 pm EDT | Form 4 |
| Andrew DysonEVP(AMG Ltd.), Global Distrib. | 18,131 | — | 18,131 | Mar 3, 2016 · 5:09 pm EST | Form 4 |
| David M. BillingsGeneral Counsel and Secretary | 12,959 | — | 12,959 | Feb 7, 2019 · 5:35 pm EST | Form 4 |
| Patrick T RyanDirector | 12,787 | — | 12,787 | Nov 16, 2018 · 5:03 pm EST | Form 4 |
| Samuel T ByrneDirector | 12,011 | — | 12,011 | Aug 23, 2018 · 5:19 pm EDT | Form 4 |
| Hugh CutlerEVP, Global Distribution | 11,142 | 864 | 12,006 | Feb 7, 2019 · 5:34 pm EST | Form 4 |
| Rodriguez Felix Matos VDirector | 5,217 | — | 5,217 | Sep 25, 2026 · 5:01 pm EDT | Form 4/A |
| Dwight D. ChurchillDirector | 4,488 | — | 4,488 | Nov 21, 2018 · 5:20 pm EST | Form 4 |
| Loren M StarrDirector | 2,653 | — | 2,653 | Aug 18, 2026 · 5:02 pm EDT | Form 4 |
| Annette FranquiDirector | 2,439 | — | 2,439 | Aug 18, 2026 · 5:04 pm EDT | Form 4 |
| Glenn EarleDirector | 1,039 | — | 1,039 | Jan 3, 2019 · 6:18 pm EST | Form 4 |
| Karen YerburghDirector | 102 | — | 102 | Jan 3, 2019 · 6:15 pm EST | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.