G. Staley Cates bought $459k of AMG
director at AFFILIATED MANAGERS GROUP, INC.. 1,500 shares at an average of $305.83, traded May 6, 2026, filed May 6, 2026.
Score components
- +15RoleDirector
- +17Trade size$459k at market
- +6Relative to holdingsHoldings up 31%
- 0Price contextNear the top of the 52-week range
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +10.1%, 3m +22.7%, 6m -.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001004434-26-000053, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 6, 2026 | POpen-market purchase Common Stock | +1,500 | $305.83 | $459k | 6,405 | May 6, 2026 |
Related signals
Other insiders at AFFILIATED MANAGERS GROUP, INC. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 35Weak | AMGsell AFFILIATED MANAGERS GROUP, INC. | Jay C. Horgen President and CEO | $5.9M 17,500 shares | -8% | |
| 38Weak | AMGbuy AFFILIATED MANAGERS GROUP, INC. | Annette Franqui director | $229k 750 shares | +62% | |
| 68Notable | AFFILIATED MANAGERS GROUP, INC. | David Christopher Ryan director | $1.0M 3,402 shares | -76% | |
| 42Moderate | AFFILIATED MANAGERS GROUP, INC. | Rodriguez Felix V. Matos director | $300k 1,000 shares | -19% | |
| 28Weak | AFFILIATED MANAGERS GROUP, INC. | Kavita Padiyar General Counsel & Corp. Sec. | $612k 2,200 shares | -5% | |
| 48Moderate | AFFILIATED MANAGERS GROUP, INC. | Thomas M Wojcik President and COO | $2.3M 8,000 shares | -5% | |
| 30Weak | AMGsell AFFILIATED MANAGERS GROUP, INC. | Thomas M Wojcik President and COO | $3.7M 16,000 shares | -9% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.