Affiliated Managers Group Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -42.05. In total, the insiders bought 1.31M and sold 464.35K MGRD 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)
-42.05
Buy 1.31M shares
Sell 464.35K shares
79% Buy Activity
Moderate Positive Correlation
Sell Signal Medium Confidence
Mar 06, 2026

Analysis Breakdown:

  • Supported by a negative Insider Power Score of -42.05.
  • Partially supported by a positive historical correlation.
  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
Mar 05, 2026
Buy
Stock Units
M-Exempt
Wojcik Thomas M
President And COO
CEO / President 7 272
Value: $113.9K
Mar 05, 2026
Buy
Common Stock
A-Award
Padiyar Kavita
General Counsel & Corp. Sec.
Officer 2 426
Value: $38.0K
Mar 05, 2026
Sell
Common Stock
F-InKind
Padiyar Kavita
General Counsel & Corp. Sec.
Officer 2 282
Value: $682.7K
Mar 05, 2026
Sell
Common Stock
F-InKind
Horgen Jay C.
Chief Executive Officer
CEO / President 18 333
Value: $5.48M
Mar 05, 2026
Buy
Common Stock
M-Exempt
Horgen Jay C.
Chief Executive Officer
CEO / President 17 563
Value: $275.0K
Mar 05, 2026
Buy
Stock Units
M-Exempt
Horgen Jay C.
Chief Executive Officer
CEO / President 17 563
Value: $275.0K
Mar 05, 2026
Buy
Stock Units
A-Award
Horgen Jay C.
Chief Executive Officer
CEO / President 8 544
Value: $133.8K
Mar 05, 2026
Buy
Stock Units
M-Exempt
Ritchea Dava
Chief Financial Officer
C-Suite Officer 601
Value: $9K
Mar 05, 2026
Buy
Deferred Stock Units
A-Award
Alvingham Karen L.
Director
Director 98
Value: $2K
Mar 05, 2026
Buy
Common Stock
M-Exempt
Ryan David Christopher
Director
Director 867
Value: $13.6K
Mar 05, 2026
Buy
Stock Units
M-Exempt
Ryan David Christopher
Director
Director 867
Value: $13.6K
Mar 05, 2026
Buy
Stock Units
A-Award
Ryan David Christopher
Director
Director 335
Value: $5K
Mar 05, 2026
Buy
Stock Units
M-Exempt
Starr Loren M
Director
Director 652
Value: $10.2K
Mar 05, 2026
Buy
Common Stock
M-Exempt
Starr Loren M
Director
Director 652
Value: $10.2K
Mar 05, 2026
Buy
Stock Units
A-Award
Starr Loren M
Director
Director 503
Value: $8K
Mar 05, 2026
Buy
Stock Units
A-Award
Matos Rodriguez Felix V.
Director
Director 335
Value: $5K
Mar 05, 2026
Buy
Common Stock
M-Exempt
Palandjian Tracy P.
Director
Director 867
Value: $13.6K
Mar 05, 2026
Buy
Deferred Stock Units
A-Award
Starr Loren M
Director
Director 257
Value: $4K
Mar 05, 2026
Buy
Stock Units
M-Exempt
Palandjian Tracy P.
Director
Director 867
Value: $13.6K
Mar 05, 2026
Buy
Stock Units
A-Award
Palandjian Tracy P.
Director
Director 335
Value: $5K
Mar 05, 2026
Buy
Common Stock
M-Exempt
Franqui Annette
Director
Director 548
Value: $9K
Mar 05, 2026
Buy
Stock Units
M-Exempt
Franqui Annette
Director
Director 548
Value: $9K
Mar 05, 2026
Buy
Stock Units
A-Award
Franqui Annette
Director
Director 335
Value: $5K
Dec 23, 2025
Sell
Common Stock
G-Gift
Horgen Jay C.
Chief Executive Officer
CEO / President 4 000
Value: $0
Nov 25, 2025
Sell
Common Stock
G-Gift
Palandjian Tracy P.
Director
Director 3 499
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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