Affiliated Managers Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at 0. In total, the insiders bought 317.11K and sold 184.55K MGR shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
0
Buy 317.11K shares
Sell 184.55K shares
85% Buy Activity
Negligible or No Correlation

No Significant Signals

No statistically significant buy or sell signals detected in recent insider data.

Historical Insider Trades

Date Type Person Role Amount
Aug 15, 2023
Buy
Common Stock
M-Exempt
Horgen Jay C.
President And CEO
CEO / President 47 990
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Wojcik Thomas M
Chief Financial Officer
C-Suite Officer 4 923
Value: $0
Aug 15, 2023
Sell
Common Stock
F-InKind
Wojcik Thomas M
Chief Financial Officer
C-Suite Officer 2 537
Value: $337.5K
Aug 15, 2023
Buy
Common Stock
M-Exempt
Wojcik Thomas M
Chief Financial Officer
C-Suite Officer 4 923
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Jamal Rizwan M
Head Of Affiliate Investments
Officer 12 530
Value: $0
Aug 15, 2023
Sell
Common Stock
F-InKind
Jamal Rizwan M
Head Of Affiliate Investments
Officer 6 064
Value: $806.8K
Aug 15, 2023
Buy
Common Stock
M-Exempt
Jamal Rizwan M
Head Of Affiliate Investments
Officer 12 530
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Erickson John R
Head Of Affiliate Engagement
Officer 10 964
Value: $0
Aug 15, 2023
Sell
Common Stock
F-InKind
Erickson John R
Head Of Affiliate Engagement
Officer 5 145
Value: $684.5K
Aug 15, 2023
Buy
Common Stock
M-Exempt
Erickson John R
Head Of Affiliate Engagement
Officer 10 964
Value: $0
Aug 15, 2023
Sell
Common Stock
F-InKind
Alvingham Karen L.
Director
Director 58
Value: $8K
Aug 15, 2023
Buy
Common Stock
M-Exempt
Alvingham Karen L.
Director
Director 753
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Alvingham Karen L.
Director
Director 753
Value: $0
Aug 15, 2023
Buy
Common Stock
M-Exempt
Ryan David Christopher
Director
Director 370
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Ryan David Christopher
Director
Director 370
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Palandjian Tracy P.
Director
Director 844
Value: $0
Aug 15, 2023
Buy
Common Stock
M-Exempt
Palandjian Tracy P.
Director
Director 844
Value: $0
Aug 15, 2023
Buy
Common Stock
M-Exempt
Matos Rodriguez Felix V.
Director
Director 381
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Matos Rodriguez Felix V.
Director
Director 381
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Jeffery Reuben Iii
Director
Director 900
Value: $0
Aug 15, 2023
Buy
Common Stock
M-Exempt
Jeffery Reuben Iii
Director
Director 900
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Churchill Dwight D.
Director
Director 1 064
Value: $0
Aug 15, 2023
Buy
Common Stock
M-Exempt
Churchill Dwight D.
Director
Director 1 064
Value: $0
Aug 15, 2023
Buy
Common Stock
M-Exempt
Atkinson Tracy A
Director
Director 398
Value: $0
Aug 15, 2023
Buy
Stock Units
M-Exempt
Atkinson Tracy A
Director
Director 398
Value: $0

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT AFFILIATED MANAGERS GROUP INC
Affiliated Managers Group, Inc., through its affiliates, operates as an asset management company providing investment management services to mutual funds, institutional clients, and high net worth individuals in the United States. It provides advisory or subadvisory services to mutual funds. These funds are distributed to retail and institutional clients directly and through intermediaries, including independent investment advisors, retirement pl...
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