AMG
insider transactionsAFFILIATED MANAGERS GROUP, INC. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 2 different insiders made open-market purchases in the last 90 days, totalling $687.4K.
Net shares · 90d
-19.7K
2.2K buy · 21.9K sell
Net value · 90d
-$6.6M
$687.4K in · $7.3M out
Sentiment · 90d
Net selling
9% buying · 91% selling
Open-market trades · 90d
5
2.2K buy · 21.9K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Exercise·M
Director
$0
3.0K sh
Own New
-
Other·F
Director
$242.9K
685 sh · $354.62
Own -4%
-
Exercise·M
Director
$242.8K
3.0K sh · $82.07
Own +19%
-
Exercise·M
Jay C. Horgen KEY
President and CEO
$0
75.0K sh
Own New
-
Sell·S
Jay C. Horgen KEY
President and CEO
$5.9M
17.5K sh · $338.27
Own -8%
-
Other·F
Jay C. Horgen KEY
President and CEO
$13.4M
39.7K sh · $336.62
Own -15%
-
Exercise·M
Jay C. Horgen KEY
President and CEO
$5.6M
75.0K sh · $74.49
Own +40%
-
Buy·P
Director
$228.7K
750 sh · $304.88
Own +62%
-
Sell·S
Director
$300.2K
1.0K sh · $300.18
Own -19%
-
Buy·P
Director
$458.7K
1.5K sh · $305.83
Own +31%
-
Sell·S
Director
$1.0M
3.4K sh · $305.06
Own -76%
-
Grant·A
Director
$0
172 sh
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 12, 2026 | Tracy P. Palandjian | Exercise M | 3.0K | $0 |
| Jun 12, 2026 | Tracy P. Palandjian | Other F | 685 | $242.9K |
| Jun 12, 2026 | Tracy P. Palandjian | Exercise M | 3.0K | $242.8K |
| Jun 8, 2026 | Jay C. Horgen KEY | Exercise M | 75.0K | $0 |
| Jun 8, 2026 | Jay C. Horgen KEY | Sell S | 17.5K | $5.9M |
| Jun 8, 2026 | Jay C. Horgen KEY | Other F | 39.7K | $13.4M |
| Jun 8, 2026 | Jay C. Horgen KEY | Exercise M | 75.0K | $5.6M |
| Jun 1, 2026 | Annette Franqui | Buy P | 750 | $228.7K |
| May 8, 2026 | Rodriguez Felix V. Matos | Sell S | 1.0K | $300.2K |
| May 6, 2026 | Staley G. Cates | Buy P | 1.5K | $458.7K |
| May 6, 2026 | David Christopher Ryan | Sell S | 3.4K | $1.0M |
| May 1, 2026 | Staley G. Cates | Grant A | 172 | $0 |
About AMG insider trading
This page tracks insider transactions for AFFILIATED MANAGERS GROUP, INC. (AMG) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.