AFFILIATED MANAGERS GROUP (AMG) stock: insider trades, news & valuation
Net sellingShare price and insider trades
AFFILIATED MANAGERS GROUP insider trading at a glance (Oct 9, 2026): in the past 12 months, 2 insiders bought $687K and 5 sold $10.2M of AMG stock on the open market.
Get emailed when insiders cluster-buy stocks like AMG
Free alerts the day a new cluster buy is filed, plus the Monday report of the week's biggest insider trades.
Free · unsubscribe anytime · not investment advice · see a sample issue
AMG insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | $687K | 2 | $7.3M | 3 |
| Q1 2026 | — | 0 | $2.9M | 2 |
Valuation, profit and volume
Summary
Over the past 12 months, 2 AFFILIATED MANAGERS GROUP, INC. insiders reported open-market purchases totaling $687K, while 5 insiders reported sales totaling $10.2M. Among insiders with enough purchase history to measure, Annette Franqui (Director) has the highest Insider Score at 61. 0 of 5 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
AMG earnings: how the stock reacted
Each quarterly results release (SEC 8-K Item 2.02), the trend before it, insider trades in the 30 days before, and the 2-day market reaction. “E” marks releases on the chart above.
| Release | 15 days before | Insiders, 30 days before | Reaction (2 days) | Next 30 days |
|---|---|---|---|---|
| Jul 30, 2026 | -1.6% | None | +1.8%S&P +2.4% | +1.1% |
| May 1, 2026 | -2.2% | None | +1.0%S&P -0.1% | +4.7% |
| Feb 12, 2026 | +0.2% | None | +7.0%S&P -1.5% | -17.5% |
| Nov 3, 2025 | +1.8% | None | +5.7%S&P -1.0% | +8.1% |
| Jul 31, 2025 | +5.1% | None | -1.6%S&P -2.0% | +8.6% |
| May 8, 2025 | +10.6% | None | +2.3%S&P +0.6% | +1.7% |
| Feb 6, 2025 | -3.3% | None | -2.1%S&P -0.6% | -10.6% |
| Nov 4, 2024 | -1.2% | None | -8.3%S&P +1.0% | +4.1% |
Most companies bar insiders from trading in the weeks before results, so pre-earnings purchases are rare and often made by directors or under pre-set plans. Past reactions don't predict future ones.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jun 8SEC | Jay C. HorgenCEO, President | Sell | 17,500204,706 held (−8%) | $338.27 | $5.9M | +14.5% | — |
| Jun 3SEC | Annette FranquiDirector | Buy | 7501,962 held (+62%) | $304.88 | $229K | +27.0% | 61 |
| May 8SEC | David Christopher RyanDirector | Sell | 3,4021,092 held (−76%) | $305.06 | $1.0M | +26.9% | — |
| May 8SEC | Rodriguez Felix V. MatosDirector | Sell | 1,0004,369 held (−19%) | $300.18 | $300K | +29.0% | — |
| May 6SEC | G. Staley CatesDirector | Buy | 1,5006,405 held (+31%) | $305.83 | $459K | +26.6% | — |
| Mar 9SEC | Thomas M WojcikCOO, President | Sell | 8,000159,465 held (−5%) | $286.30 | $2.3M | +35.3% | — |
| Mar 9SEC | Kavita PadiyarGeneral Counsel | Sell | 2,20042,672 held (−5%) | $278.24 | $612K | +39.2% | — |
Insiders at AFFILIATED MANAGERS GROUP, INC.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Jay C. HorgenCEO, President | — | $5.9M | Jun 8, 2026 | — |
| Thomas M WojcikCOO, President | — | $2.3M | Mar 9, 2026 | — |
| G. Staley CatesDirector | $459K | — | May 6, 2026 | — |
| David Christopher RyanDirector | — | $1.0M | May 8, 2026 | — |
| Annette FranquiDirector | $229K | — | Jun 3, 2026 | 61 |
| Kavita PadiyarGeneral Counsel | — | $612K | Mar 9, 2026 | — |
| Rodriguez Felix V. MatosDirector | — | $300K | May 8, 2026 | — |
AMG stock: common questions
Are AFFILIATED MANAGERS GROUP, INC. insiders buying AMG stock?
In the past 12 months, 2 insiders reported open-market purchases of AMG worth $687K. The latest was Director Annette Franqui bought $229K of AMG at $304.88 — first open-market purchase in our records; raises the stake by 62%.
Are AFFILIATED MANAGERS GROUP, INC. insiders selling AMG stock?
5 insiders reported sales worth $10.2M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is AMG's 52-week range?
Over the past year AMG has traded between $230.75 and $387.26. It last closed at $387.26 on Oct 9, 2026.