Affiliated Managers Group, Inc. - Corporate Bond/Note
US ˙ NYSE ˙ US0082528433

Introduction

This page provides a comprehensive analysis of the known insider trading history of Nathaniel Dalton. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Nathaniel Dalton has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:ICAD / iCAD, Inc. Director 30,000
US:AMG / Affiliated Managers Group, Inc. Director 206,589
10% Owner 20,000
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Nathaniel Dalton. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases MGRB / Affiliated Managers Group, Inc. - Corporate Bond/Note - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in MGRB / Affiliated Managers Group, Inc. - Corporate Bond/Note. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

MGRB / Affiliated Managers Group, Inc. - Corporate Bond/Note Insider Trades
Insider Sales MGRB / Affiliated Managers Group, Inc. - Corporate Bond/Note - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in MGRB / Affiliated Managers Group, Inc. - Corporate Bond/Note. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2019-08-30 AMG DALTON NATHANIEL 23,000 76.8600 23,000 76.8600 1,767,780 206 45.15 -729,330 -41.26
2015-06-08 AMG DALTON NATHANIEL 18,361 221.0100 18,361 221.0100 4,057,965
2015-06-05 AMG DALTON NATHANIEL 56,639 222.7000 56,639 222.7000 12,613,505
2015-02-24 AMG DALTON NATHANIEL 24,292 218.6600 24,292 218.6600 5,311,689
2015-02-23 AMG DALTON NATHANIEL 45,875 215.7200 45,875 215.7200 9,896,155
2014-08-04 AMG DALTON NATHANIEL 101,089 196.4000 101,089 196.4000 19,853,880
2013-08-02 AMG DALTON NATHANIEL 50,000 185.2400 50,000 185.2400 9,262,000
2013-02-06 AMG DALTON NATHANIEL 55,000 144.4800 55,000 144.4800 7,946,400
2012-08-17 AMG DALTON NATHANIEL 60,000 119.1600 60,000 119.1600 7,149,600
2012-02-13 AMG DALTON NATHANIEL 55,000 106.4000 55,000 106.4000 5,852,000

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

MGRB / Affiliated Managers Group, Inc. - Corporate Bond/Note Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Nathaniel Dalton as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2022-01-04 2022-01-01 4 ICAD ICAD INC
Director Stock Option (right to buy)
A - Award 30,000 30,000
2021-12-10 2021-12-09 4 ICAD ICAD INC
Common Stock
P - Purchase 6,900 183,947 3.90 7.24 49,956 1,331,776
2021-02-17 2021-02-15 4 ICAD ICAD INC
Stock Option
A - Award 30,000 30,000
2021-01-05 2020-12-31 4 icad ICAD INC
Director Stock Option (right to buy)
A - Award 3,050 3,050
2020-10-01 2020-09-30 4 icad ICAD INC
Director Stock Option (right to buy)
A - Award 3,696 3,696
2020-07-01 2020-06-30 4 icad ICAD INC
Director Stock Option (right to buy)
A - Award 3,271 3,271
2020-04-02 2020-04-01 4 icad ICAD INC
Director Stock Option (right to buy)
A - Award 2,623 2,623
2020-03-05 2020-03-03 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -4,277 206,589 -2.03 73.81 -315,685 15,248,334
2020-03-05 2020-03-03 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 11,366 210,866 5.70
2020-02-25 2020-02-21 4 icad ICAD INC
Convertible Debenture
C - Conversion -40,000 0 -100.00
2020-02-25 2020-02-21 4 icad ICAD INC
Convertible Debenture
C - Conversion -400,000 0 -100.00
2020-02-25 2020-02-21 4 icad ICAD INC
Common Stock
C - Conversion 4,320 177,047 2.50 9.26 40,003 1,639,455
2020-02-25 2020-02-21 4 icad ICAD INC
Common Stock
C - Conversion 100,000 172,727 137.50 4.00 400,000 690,908
2020-01-14 2020-01-12 4 ICAD ICAD INC
Director Stock Option (right to buy)
A - Award 40,000 40,000
2020-01-14 3 ICAD ICAD INC
Common Stock
145,454
2020-01-14 3 ICAD ICAD INC
Common Stock
145,454
2020-01-14 3 ICAD ICAD INC
Common Stock
145,454
2020-01-03 2020-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -993 199,500 -0.50 83.99 -83,402 16,756,005
2020-01-03 2020-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -7,853 200,493 -3.77 84.74 -665,463 16,989,777
2019-09-04 2019-08-30 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
S - Sale -23,000 208,346 -9.94 76.86 -1,767,780 16,013,474
2019-02-22 2019-02-22 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
A - Award 53,985 53,985 122.40 6,607,764 6,607,764
2019-02-07 2019-02-05 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 16,361 231,346 7.61
2019-01-03 2019-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -624 214,985 -0.29 98.23 -61,296 21,117,977
2019-01-03 2019-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -6,447 0 -100.00
2019-01-03 2019-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -8,956 215,609 -3.99 97.44 -872,673 21,008,941
2019-01-03 2019-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 6,447 224,565 2.96
2019-01-03 2018-03-13 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -612 218,118 -0.28
2019-01-03 2018-02-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -5,011 0 -100.00
2019-01-03 2018-02-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -9,989 218,730 -4.37
2018-02-01 2018-01-30 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 9,472 228,719 4.32
2018-01-03 2018-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -9,835 219,247 -4.29 205.25 -2,018,634 45,000,447
2018-01-03 2017-12-31 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -10,075 0 -100.00
2018-01-03 2017-12-31 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -6,446 6,447 -50.00
2018-01-03 2017-12-31 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 10,075 229,082 4.60
2018-01-03 2017-12-31 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 6,446 219,007 3.03
2018-01-03 2017-11-10 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -5,412 5,011 -51.92
2018-01-03 2017-11-09 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -1,082 10,423 -9.40
2018-01-03 2017-08-03 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -2,747 11,505 -19.27
2017-05-19 2017-05-17 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -90,000 0 -100.00 99.66 -8,969,400
2017-05-19 2017-05-17 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -72,410 212,561 -25.41 151.08 -10,939,703 32,113,716
2017-05-19 2017-05-17 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 90,000 284,971 46.16 99.66 8,969,400 28,400,210
2017-05-19 2017-02-21 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -5,960 14,252 -29.49
2017-02-13 2017-02-09 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -75,000 0 -100.00 95.82 -7,186,500
2017-02-13 2017-02-09 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -57,341 194,971 -22.73 163.86 -9,395,896 31,947,948
2017-02-13 2017-02-09 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 75,000 252,312 42.30 95.82 7,186,500 24,176,536
2017-02-02 2017-01-31 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 23,727 177,312 15.45
2017-01-03 2017-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -10,075 10,075 -50.00
2017-01-03 2017-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -13,214 153,585 -7.92 145.30 -1,919,994 22,315,900
2017-01-03 2017-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 10,075 166,799 6.43
2017-01-03 2017-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -6,446 12,893 -33.33
2017-01-03 2017-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -5,571 0 -100.00
2017-01-03 2017-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 6,446 156,724 4.29
2017-01-03 2017-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 5,571 150,278 3.85
2017-01-03 2016-12-09 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -12,954 20,212 -39.06
2016-11-22 2016-11-18 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -75,000 0 -100.00
2016-11-22 2016-11-18 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -51,020 144,707 -26.07 141.57 -7,222,901 20,486,170
2016-11-22 2016-11-18 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 75,000 195,727 62.12 62.91 4,718,250 12,313,186
2016-11-22 2016-08-24 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -1,410 33,166 -4.08
2016-11-22 2016-08-08 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -6,930 34,576 -16.70
2016-03-03 2016-03-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -1,345 120,727 -1.10 144.18 -193,922 17,406,419
2016-02-24 2016-02-24 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 12,640 122,072 11.55
2016-02-24 2016-02-22 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -1,611 0 -100.00
2016-02-24 2016-02-22 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 1,611 109,432 1.49 62.04 99,946 6,789,161
2016-02-05 2016-02-03 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 32,271 107,821 42.71
2016-01-05 2016-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -6,446 19,339 -25.00
2016-01-05 2016-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -5,570 5,571 -50.00
2016-01-05 2016-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -4,234 75,550 -5.31 159.76 -676,424 12,069,868
2016-01-05 2016-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 6,446 79,784 8.79
2016-01-05 2016-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 5,570 73,338 8.22
2015-06-09 2015-06-08 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -18,361 0 -100.00 65.51 -1,202,829
2015-06-09 2015-06-08 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
S - Sale -18,361 67,768 -21.32 221.01 -4,057,965 14,977,406
2015-06-09 2015-06-08 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 18,361 67,768 37.16 65.51 1,202,829 4,439,482
2015-06-09 2015-06-05 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -56,639 18,361 -75.52 65.51 -3,710,421 1,202,829
2015-06-09 2015-06-05 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
S - Sale -56,639 67,768 -45.53 222.70 -12,613,505 15,091,934
2015-06-09 2015-06-05 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 56,639 67,768 508.93 65.51 3,710,421 4,439,482
2015-02-25 2015-02-24 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -24,292 1,611 -93.78 62.04 -1,507,076 99,946
2015-02-25 2015-02-24 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
S - Sale -24,292 67,768 -26.39 218.66 -5,311,689 14,818,151
2015-02-25 2015-02-24 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 24,292 67,768 55.87 62.04 1,507,076 4,204,327
2015-02-25 2015-02-23 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -45,875 25,903 -63.91 62.04 -2,846,085 1,607,022
2015-02-25 2015-02-23 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
S - Sale -45,875 67,768 -40.37 215.72 -9,896,155 14,618,913
2015-02-25 2015-02-23 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 45,875 67,768 209.54 62.04 2,846,085 4,204,327
2015-01-22 2015-01-20 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
A - Award 25,785 25,785
2015-01-05 2015-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -5,571 11,141 -33.34
2015-01-05 2015-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -1,712 67,768 -2.46 212.24 -363,355 14,383,080
2015-01-05 2015-01-01 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 5,571 67,768 8.96
2015-01-05 2014-11-17 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -1,000 41,516 -2.35
2014-10-10 3 N/A AMG Pantheon Private Equity Fund, LLC
Units of beneficial interest
20,000
2014-10-10 3 N/A AMG Pantheon Private Equity Fund, LLC
Units of beneficial interest
20,000
2014-08-06 2014-08-04 4 AMG AFFILIATED MANAGERS GROUP, INC.
Employee Stock Option (Right to Buy)
M - Exercise -101,089 0 -100.00 48.38 -4,890,686
2014-08-06 2014-08-04 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
S - Sale -101,089 63,909 -61.27 196.40 -19,853,880 12,551,728
2014-08-06 2014-08-04 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 101,089 63,909 -271.89 48.38 4,890,686 3,091,917
2014-01-06 2014-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
M - Exercise -5,570 16,712 -25.00
2014-01-06 2014-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
A - Award 22,282 22,282
2014-01-06 2014-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
F - Taxes -36,115 106,425 -25.34 216.88 -7,832,621 23,081,454
2014-01-06 2014-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
M - Exercise 5,570 106,425 5.52
2014-01-06 2014-01-02 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
A - Award 73,917 106,425 227.38
2013-12-20 2013-12-18 4 AMG AFFILIATED MANAGERS GROUP, INC.
Stock Units
A - Award 20,151 20,151
2013-12-20 2013-12-12 4 AMG AFFILIATED MANAGERS GROUP, INC.
Common Stock
G - Gift -2,000 63,053 -3.07
2013-08-05 2013-08-02 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
M - Exercise -50,000 101,089 -33.09 48.38 -2,419,000 4,890,686
2013-08-05 2013-08-02 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
S - Sale -50,000 65,053 -43.46 185.24 -9,262,000 12,050,418
2013-08-05 2013-08-02 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
M - Exercise 50,000 65,053 332.16 48.38 2,419,000 3,147,264
2013-02-08 2013-02-06 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
M - Exercise -2,069 151,089 -1.35 48.38 -100,098 7,309,686
2013-02-08 2013-02-06 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
M - Exercise -55,000 0 -100.00 63.38 -3,485,900
2013-02-08 2013-02-06 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
M - Exercise 2,069 65,053 3.28 48.38 100,098 3,147,264
2013-02-08 2013-02-06 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
S - Sale -55,000 65,053 -45.81 144.48 -7,946,400 9,398,857
2013-02-08 2013-02-06 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
M - Exercise 55,000 65,053 547.10 63.38 3,485,900 4,123,059
2012-08-21 2012-08-17 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
M - Exercise -60,000 55,000 -52.17 63.38 -3,802,800 3,485,900
2012-08-21 2012-08-17 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
S - Sale -60,000 62,984 -48.79 119.16 -7,149,600 7,505,173
2012-08-21 2012-08-17 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
M - Exercise 60,000 62,984 2,010.72 63.38 3,802,800 3,991,926
2012-02-15 2012-02-13 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
M - Exercise -55,000 0 -100.00 45.27 -2,489,850
2012-02-15 2012-02-13 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
M - Exercise -3,222 71,778 -4.30 62.04 -199,893 4,453,107
2012-02-15 2012-02-13 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
S - Sale -55,000 62,984 -46.62 106.40 -5,852,000 6,701,498
2012-02-15 2012-02-13 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
M - Exercise 55,000 62,984 688.88 45.27 2,489,850 2,851,286
2012-02-15 2012-02-13 4 AMG AFFILIATED MANAGERS GROUP INC
Common Stock
M - Exercise 3,222 62,984 5.39 62.04 199,893 3,907,527
2003-07-29 2003-07-25 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
G - Gift -20,000 228,875 -8.04 29.00 -580,000 6,637,375
2003-07-29 2003-07-24 4 AMG AFFILIATED MANAGERS GROUP INC
Employee Stock Option (Right to Buy)
A - Award 60,000 228,875 35.53 65.25 3,915,000 14,934,094
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)