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Insider Trading: AFFILIATED MANAGERS GROUP INC

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of AFFILIATED MANAGERS GROUP INC since year 2005 are given in the first table. The second table lists detailed insider transactions reported by AFFILIATED MANAGERS GROUP INC since 2005. The reporting company's ticker symbol is AMG. The reporting company's CIK number is 1004434. The total value of stock buying during this period is $0. The total value of stock sales is $222,283,919. The total value of stock exercises is $72,206,181.

Figure 1. Monthly insider transaction values at AFFILIATED MANAGERS GROUP INC (AMG) in the past 24 months. The trade values of insider stock buys, sales, and option exercises are in logarithmic scale as shown on the right axis labels. The detailed monthly and daily insider transactions are listed in the 2 tables below.

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • $34,417k

    $3,441k

    $344k

    $34k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at AFFILIATED MANAGERS GROUP INC (AMG) in the past 24 months. See table 2 for insider transaction details.

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • $130.93

    $98.20

    $65.46

    $32.73



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for AFFILIATED MANAGERS GROUP INC (AMG).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-04 0 0 331,341 32,214,860 331,341 14,881,735
2008-03 0 0 0 0 2,254 99,964
2008-01 0 0 0 0 123,750 4,792,837
2007-12 0 0 0 0 2,298 99,963
2007-08 0 0 233,869 26,975,775 238,869 9,070,074
2007-07 0 0 50,000 6,546,333 50,000 944,750
2007-06 0 0 50,000 6,360,329 50,000 1,115,911
2007-05 0 0 50,000 6,140,831 50,000 1,092,668
2007-04 0 0 50,000 5,540,000 50,000 783,499
2007-03 0 0 16,666 1,799,928 16,666 261,156
2007-02 0 0 300,360 34,417,154 309,395 10,617,413
2006-12 0 0 100,000 10,296,000 110,858 1,878,516
2006-11 0 0 53,437 5,399,808 53,437 1,815,254
2006-08 0 0 143,000 13,066,584 143,000 5,674,703
2006-07 0 0 138,554 12,607,588 138,554 4,998,464
2006-06 0 0 98,437 8,600,237 84,822 2,166,877
2006-05 0 0 50,000 4,907,167 0 0
2006-04 0 0 50,000 5,253,203 0 0
2006-03 0 0 50,000 4,989,799 0 0
2006-02 0 0 125,000 11,582,121 77,141 2,716,692
2006-01 0 0 276,181 25,586,202 278,851 9,195,705

Table 2. Detailed insider stock purchases, sales, and option exercises for AFFILIATED MANAGERS GROUP INC (AMG)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-04-30 Meyerman Harold J Sale 11,250 99.82 1,122,975
2008-04-30 Meyerman Harold J Option Exercise 11,250 45.67 513,787
2008-04-28 Dalton Nathaniel (Executive V.P. and COO) Sale 91,609 97.00 8,886,073
2008-04-28 Dalton Nathaniel (Executive V.P. and COO) Option Exercise 91,609 46.69 4,277,224
2008-04-28 Crate Darrell W (Executive V.P. and CFO) Sale 145,000 96.94 14,056,300
2008-04-28 Crate Darrell W (Executive V.P. and CFO) Option Exercise 145,000 42.71 6,192,950
2008-04-28 Healey Sean M (President and CEO) Sale 83,482 97.62 8,149,512
2008-04-28 Healey Sean M (President and CEO) Option Exercise 83,482 46.69 3,897,774
2008-03-20 Nutt William J Option Exercise 2,254 44.35 99,964
2008-01-23 Nutt William J Option Exercise 123,750 38.73 4,792,837
2007-12-20 Nutt William J Option Exercise 2,298 43.50 99,963
2007-08-07 Kingston John Iii (Exec. V.P., Gen. Counsel) Sale 25,000 116.46 2,911,500
2007-08-07 Kingston John Iii (Exec. V.P., Gen. Counsel) Option Exercise 30,000 43.50 1,305,000
2007-08-07 Dalton Nathaniel (Executive V.P. and COO) Sale 53,869 115.76 6,235,875
2007-08-07 Dalton Nathaniel (Executive V.P. and COO) Option Exercise 53,869 35.34 1,903,999
2007-08-07 Healey Sean M (President and CEO) Sale 95,000 115.44 10,966,800
2007-08-07 Healey Sean M (President and CEO) Option Exercise 95,000 39.32 3,735,875
2007-08-06 Crate Darrell W (Executive V.P. and CFO) Sale 60,000 114.36 6,861,600
2007-08-06 Crate Darrell W (Executive V.P. and CFO) Option Exercise 60,000 35.42 2,125,200
2007-07-13 Nutt William J Sale 16,668 131.67 2,194,675
2007-07-13 Nutt William J Option Exercise 16,668 19.33 322,192
2007-07-12 Nutt William J Sale 16,666 130.95 2,182,412
2007-07-12 Nutt William J Option Exercise 16,666 18.90 314,904
2007-07-11 Nutt William J Sale 16,666 130.16 2,169,246
2007-07-11 Nutt William J Option Exercise 16,666 18.46 307,654
2007-06-08 Nutt William J Sale 16,668 125.82 2,097,167
2007-06-08 Nutt William J Option Exercise 16,668 20.78 346,277
2007-06-07 Nutt William J Sale 16,666 127.16 2,119,248
2007-06-07 Nutt William J Option Exercise 16,666 23.09 384,817
2007-06-06 Nutt William J Sale 16,666 128.64 2,143,914
2007-06-06 Nutt William J Option Exercise 16,666 23.09 384,817
2007-05-10 Nutt William J Sale 16,668 122.72 2,045,496
2007-05-10 Nutt William J Option Exercise 16,668 23.09 384,864
2007-05-09 Nutt William J Sale 16,666 123.66 2,060,917
2007-05-09 Nutt William J Option Exercise 16,666 23.09 384,817
2007-05-08 Nutt William J Sale 16,666 122.07 2,034,418
2007-05-08 Nutt William J Option Exercise 16,666 19.38 322,987
2007-04-13 Nutt William J Sale 16,668 111.67 1,861,315
2007-04-13 Nutt William J Option Exercise 16,668 15.67 261,187
2007-04-12 Nutt William J Sale 16,666 110.14 1,835,593
2007-04-12 Nutt William J Option Exercise 16,666 15.67 261,156
2007-04-11 Nutt William J Sale 16,666 110.59 1,843,092
2007-04-11 Nutt William J Option Exercise 16,666 15.67 261,156
2007-03-12 Nutt William J Sale 16,666 108.00 1,799,928
2007-03-12 Nutt William J Option Exercise 16,666 15.67 261,156
2007-02-15 Nutt William J Sale 16,668 118.36 1,972,824
2007-02-15 Nutt William J Option Exercise 16,668 15.67 261,187
2007-02-14 Nutt William J Sale 16,666 117.67 1,961,088
2007-02-14 Nutt William J Option Exercise 16,666 15.67 261,156
2007-02-13 Nutt William J Sale 16,666 113.29 1,888,091
2007-02-13 Nutt William J Option Exercise 16,666 15.67 261,156
2007-02-08 Kingston John Iii (Exec. V.P., Gen. Counsel) Sale 31,610 113.86 3,599,114
2007-02-08 Kingston John Iii (Exec. V.P., Gen. Counsel) Option Exercise 31,610 40.33 1,274,831
2007-02-08 Healey Sean M (President and CEO) Option Exercise 4,439 39.07 173,416
2007-02-07 Dalton Nathaniel (Executive V.P. and COO) Sale 75,000 113.73 8,529,750
2007-02-07 Dalton Nathaniel (Executive V.P. and COO) Option Exercise 77,298 41.12 3,178,107
2007-02-07 Crate Darrell W (Executive V.P. and CFO) Sale 65,000 114.57 7,447,050
2007-02-07 Crate Darrell W (Executive V.P. and CFO) Option Exercise 67,298 37.63 2,532,423
2007-02-07 Healey Sean M (President and CEO) Sale 78,750 114.53 9,019,237
2007-02-07 Healey Sean M (President and CEO) Option Exercise 78,750 33.97 2,675,137
2006-12-29 Nutt William J Option Exercise 10,858 28.69 311,516
2006-12-08 Nutt William J Sale 100,000 102.96 10,296,000
2006-12-08 Nutt William J Option Exercise 100,000 15.67 1,567,000
2006-11-06 Brennan Seth W (Executive Vice President) Sale 53,437 101.05 5,399,808
2006-11-06 Brennan Seth W (Executive Vice President) Option Exercise 53,437 33.97 1,815,254
2006-08-15 Healey Sean M (President and CEO) Sale 25,400 92.25 2,343,150
2006-08-15 Healey Sean M (President and CEO) Option Exercise 25,400 38.73 983,741
2006-08-14 Healey Sean M (President and CEO) Sale 83,350 91.64 7,638,194
2006-08-14 Healey Sean M (President and CEO) Option Exercise 83,350 38.73 3,228,145
2006-08-02 Kingston John Iii (Ex.V.P., Gen. Counsel & Sec.) Sale 34,250 90.08 3,085,240
2006-08-02 Kingston John Iii (Ex.V.P., Gen. Counsel & Sec.) Option Exercise 34,250 42.71 1,462,817
2006-07-31 Dalton Nathaniel (Executive Vice President) Sale 75,000 91.15 6,836,250
2006-07-31 Dalton Nathaniel (Executive Vice President) Option Exercise 75,000 35.42 2,656,500
2006-07-28 Brennan Seth W (Executive Vice President) Sale 63,554 90.81 5,771,338
2006-07-28 Brennan Seth W (Executive Vice President) Option Exercise 63,554 36.85 2,341,964
2006-06-22 Nutt William J Sale 16,600 85.06 1,411,996
2006-06-22 Nutt William J Option Exercise 16,600 15.67 260,122
2006-06-21 Nutt William J Sale 16,700 85.09 1,421,003
2006-06-21 Nutt William J Option Exercise 16,700 15.67 261,689
2006-06-20 Nutt William J Sale 16,700 85.06 1,420,502
2006-06-20 Nutt William J Option Exercise 3,085 15.67 48,341
2006-06-07 Crate Darrell W (Executive V.P. and CFO) Sale 48,437 89.74 4,346,736
2006-06-07 Crate Darrell W (Executive V.P. and CFO) Option Exercise 48,437 32.96 1,596,725
2006-05-05 Nutt William J Sale 16,600 99.81 1,656,846
2006-05-04 Nutt William J Sale 16,700 97.99 1,636,433
2006-05-03 Nutt William J Sale 16,700 96.64 1,613,888
2006-04-05 Nutt William J Sale 16,600 106.37 1,765,742
2006-04-04 Nutt William J Sale 16,700 104.40 1,743,480
2006-04-03 Nutt William J Sale 16,700 104.43 1,743,981
2006-03-15 Nutt William J Sale 16,600 101.81 1,690,046
2006-03-14 Nutt William J Sale 16,700 100.40 1,676,680
2006-03-13 Nutt William J Sale 16,700 97.19 1,623,073
2006-02-16 Dalton Nathaniel (Executive Vice President) Sale 75,000 93.88 7,041,210
2006-02-16 Dalton Nathaniel (Executive Vice President) Option Exercise 77,141 35.22 2,716,692
2006-02-15 Nutt William J Sale 16,600 91.71 1,522,386
2006-02-14 Nutt William J Sale 16,700 90.76 1,515,692
2006-02-13 Nutt William J Sale 16,700 89.99 1,502,833
2006-01-30 Brennan Seth W (Executive Vice Presi) Sale 90,249 92.15 8,316,806
2006-01-30 Brennan Seth W (Executive Vice Presi) Option Exercise 92,389 34.92 3,226,039
2006-01-30 Meyerman Harold J Sale 3,750 92.01 345,037
2006-01-30 Healey Sean M (President and CEO) Sale 29,600 92.03 2,724,028
2006-01-27 Kingston John Iii (Sr. V.P., Gen. Couns) Sale 33,750 92.05 3,106,687
2006-01-27 Kingston John Iii (Sr. V.P., Gen. Couns) Option Exercise 35,890 36.60 1,313,502
2006-01-27 Crate Darrell W (Executive V.P. and C) Sale 69,683 93.40 6,508,043
2006-01-27 Crate Darrell W (Executive V.P. and C) Option Exercise 71,823 35.22 2,529,390
2006-01-27 Healey Sean M (President and CEO) Sale 49,149 93.30 4,585,601
2006-01-27 Healey Sean M (President and CEO) Option Exercise 78,749 27.01 2,126,774

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of AFFILIATED MANAGERS GROUP INC (symbol AMG, CIK number 1004434) see the Securities and Exchange Commission (SEC) website.

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