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Insider Trading: Sei Investments Co

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Sei Investments Co in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Sei Investments Co since year 2005. Table 2 shows the detailed insider transactions of Sei Investments Co since 2005. The reporting company's ticker symbol is SEIC. The reporting company's CIK number is 350894.

The total value of stock buying since 2005 is $53,899. The total value of stock sales is $193,892,553. The total value of stock exercises is $20,173,935.


1 year stock price chart,   1 day stock price chart
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Figure 1. Monthly insider transaction values at Sei Investments Co (SEIC) 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.

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • $33,487k

    $3,348k

    $334k

    $33k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Sei Investments Co (SEIC) in the past 24 months. See table 2 for insider transaction details.

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • $182.24

    $136.68

    $91.12

    $45.56



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Sei Investments Co (SEIC).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-08 0 0 1,431,921 33,487,703 152,000 1,487,253
2008-06 0 0 156,708 3,990,085 99,800 899,037
2008-05 0 0 295,600 7,123,889 10,000 74,800
2008-04 0 0 696,938 17,451,445 250,000 5,387,500
2008-03 0 0 56,000 1,398,300 24,000 179,520
2008-02 0 0 190,000 5,214,089 0 0
2007-12 0 0 0 0 177,000 1,181,750
2007-09 0 0 402,308 10,350,917 36,000 171,000
2007-08 1,400 32,382 306,462 8,293,349 0 0
2007-07 0 0 20,000 550,900 33,000 115,500
2007-06 0 0 5,000 295,900 0 0
2007-05 0 0 9,100 539,035 77,500 8,926,075
2007-03 0 0 6,000 357,690 6,000 118,500
2007-02 0 0 383,000 23,917,776 0 0
2006-12 0 0 55,300 3,316,750 56,000 467,000
2006-11 0 0 2,500 147,500 0 0
2006-10 0 0 1,932 111,418 0 0
2006-09 0 0 269,500 14,488,879 0 0
2006-08 0 0 118,500 6,110,581 0 0
2006-07 0 0 7,500 351,150 0 0
2006-06 0 0 240,440 10,921,779 0 0
2006-05 0 0 152,000 6,736,874 0 0
2006-04 0 0 0 0 130,000 842,000
2006-03 0 0 56,304 2,349,991 0 0
2006-02 0 0 272,996 11,440,424 90,000 324,000
2005-12 0 0 70,400 2,717,108 0 0
2005-11 0 0 25,300 1,000,667 0 0
2005-10 0 0 442,935 16,781,199 0 0
2005-08 0 0 110,000 4,199,570 0 0
2005-07 0 0 6,249 247,585 0 0
2005-06 564 21,517 0 0 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Sei Investments Co (SEIC)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-08-29 Mcgonigle Dennis (Executive Vice President/CFO) Sale 93,500 23.56 2,203,030
2008-08-29 Mcgonigle Dennis (Executive Vice President/CFO) Option Exercise 120,000 7.48 897,600
2008-08-15 Ross Howard D (Director) Sale 30,800 24.10 742,403
2008-08-15 Ross Howard D (Director) Option Exercise 32,000 18.43 589,653
2008-08-08 Withrow Wayne (Executive Vice President) Sale 10,000 23.70 237,000
2008-08-06 West Alfred P Jr (Chairman and Chief Executive) Sale 177,380 23.11 4,098,744
2008-08-05 West Alfred P Jr (Chairman and Chief Executive) Sale 450,000 23.53 10,540,838
2008-08-04 West Alfred P Jr (Chairman and Chief Executive) Sale 141,310 23.47 3,306,303
2008-06-24 Lieb Richard (Director) Sale 10,000 25.44 254,371
2008-06-19 Withrow Wayne (Executive Vice President) Sale 10,000 25.96 259,600
2008-06-19 Crudup Robert (Executive Vice President) Sale 2,000 25.99 51,980
2008-06-18 Romeo Carmen (Executive Vice President) Sale 10,000 26.00 260,000
2008-06-18 Crudup Robert (Executive Vice President) Sale 28,000 26.01 728,280
2008-06-18 Crudup Robert (Executive Vice President) Option Exercise 29,800 7.48 222,904
2008-06-16 Lieb Richard (Director) Option Exercise 16,000 17.01 272,213
2008-06-13 Romeo Carmen (Executive Vice President) Sale 20,000 25.52 510,300
2008-06-13 Mccarthy Kathryn (Director) Sale 16,000 25.44 407,000
2008-06-13 Mccarthy Kathryn (Director) Option Exercise 24,000 7.48 179,520
2008-06-12 Romeo Carmen (Executive Vice President) Sale 708 25.50 18,054
2008-06-09 Withrow Wayne (Executive Vice President) Sale 30,000 24.60 738,000
2008-06-09 Withrow Wayne (Executive Vice President) Option Exercise 30,000 7.48 224,400
2008-06-05 Romeo Carmen (Executive Vice President) Sale 20,000 25.38 507,500
2008-05-30 Doran William (Director) Sale 11,500 24.00 276,019
2008-05-21 Meyer Stephen (Executive Vice President) Option Exercise 10,000 7.48 74,800
2008-05-15 Ross Howard D (Director) Sale 1,200 24.08 28,895
2008-05-14 Withrow Wayne (Executive Vice President) Sale 10,000 23.93 239,300
2008-05-09 Withrow Wayne (Executive Vice President) Sale 10,000 23.28 232,800
2008-05-06 West Alfred P Jr (Chairman and Chief Executive) Sale 12,500 24.23 302,875
2008-05-02 Romeo Carmen (Executive Vice President) Sale 10,000 25.30 253,000
2008-05-01 West Alfred P Jr (Chairman and Chief Executive) Sale 135,245 24.07 3,267,400
2008-04-30 West Alfred P Jr (Chairman and Chief Executive) Sale 74,345 23.72 1,763,182
2008-04-29 West Alfred P Jr (Chairman and Chief Executive) Sale 94,913 23.88 2,266,357
2008-04-28 West Alfred P Jr (Chairman and Chief Executive) Sale 105,087 24.14 2,537,077
2008-04-25 Withrow Wayne (Executive Vice President) Sale 10,000 24.05 240,488
2008-04-25 West Alfred P Jr (Chairman and Chief Executive) Sale 106,955 24.21 2,590,290
2008-04-02 Dasher Karl (Executive Vice President) Sale 150,000 26.80 4,020,300
2008-04-02 Dasher Karl (Executive Vice President) Option Exercise 150,000 21.55 3,232,500
2008-03-12 Romeo Carmen (Executive Vice President) Sale 10,000 25.50 255,000
2008-03-12 Mccarthy Kathryn (Director) Sale 16,000 25.05 400,800
2008-03-12 Mccarthy Kathryn (Director) Option Exercise 24,000 7.48 179,520
2008-03-11 Romeo Carmen (Executive Vice President) Sale 30,000 24.75 742,500
2008-02-27 Romeo Carmen (Executive Vice President) Sale 13,900 26.20 364,180
2008-02-26 Romeo Carmen (Executive Vice President) Sale 10,000 26.06 260,600
2008-02-13 Romeo Carmen (Executive Vice President) Sale 40,000 26.10 1,044,000
2008-02-08 Lieb Richard (Director) Sale 1,800 27.54 49,581
2008-02-06 Lieb Richard (Director) Sale 8,200 27.58 226,190
2008-02-05 Romeo Carmen (Executive Vice President) Sale 56,100 28.10 1,576,129
2008-02-04 Withrow Wayne (Executive Vice President) Sale 50,000 28.17 1,408,409
2008-02-04 Romeo Carmen (Executive Vice President) Sale 10,000 28.50 285,000
2007-12-10 Dasher Karl (Executive Vice president) Option Exercise 50,000 14.74 737,250
2007-12-03 Withrow Wayne (Executive Vice President) Option Exercise 67,000 3.50 234,500
2007-12-03 Loughlin Edward (Executive Vice President) Option Exercise 60,000 3.50 210,000
2007-09-26 Mccarthy Kathryn (Director) Sale 19,800 26.06 515,952
2007-09-26 Mccarthy Kathryn (Director) Option Exercise 36,000 4.75 171,000
2007-09-24 West Alfred P Jr (Chairman and Chief Executive) Sale 25,600 26.00 665,728
2007-09-20 West Alfred P Jr (Chairman and Chief Executive) Sale 141,000 26.58 3,747,592
2007-09-13 West Alfred P Jr (Chairman and Chief Executive) Sale 1,978 25.15 49,746
2007-09-12 West Alfred P Jr (Chairman and Chief Executive) Sale 100,000 25.08 2,508,500
2007-09-11 West Alfred P Jr (Chairman and Chief Executive) Sale 93,308 25.27 2,342,273
2007-08-29 Lieb Richard (Director) Sale 5,000 25.15 125,737
2007-08-17 Lieb Richard (Director) Sale 15,000 26.24 393,641
2007-08-09 Dasher Karl (Executive Vice president) Purchase 1,400 23.13 32,382
2007-08-03 West Alfred P Jr (Chairman and Chief Executive) Sale 400 27.02 10,806
2007-08-02 West Alfred P Jr (Chairman and Chief Executive) Sale 185,000 27.01 5,027,504
2007-07-30 Lieb Richard (Director) Sale 20,000 27.54 550,900
2007-07-18 Withrow Wayne (Executive Vice President) Option Exercise 33,000 3.50 115,500
2007-06-11 Lieb Richard (Director) Sale 5,000 59.18 295,900
2007-05-23 Meyer Stephen (Executive Vice President) Option Exercise 12,000 700.00 8,400,000
2007-05-22 Withrow Wayne (Executive Vice President) Option Exercise 33,000 7.00 231,000
2007-05-18 Doran William (Director) Option Exercise 24,000 7.00 168,000
2007-05-14 Ujobai Joseph P (Executive Vice President) Sale 8,500 59.15 502,753
2007-05-14 Ujobai Joseph P (Executive Vice President) Option Exercise 8,500 14.95 127,075
2007-05-01 Smith Thomas W (Director) Sale 600 60.47 36,282
2007-03-09 Heilig Kathy (Controller/Senior Vice Preside) Sale 6,000 59.62 357,690
2007-03-09 Heilig Kathy (Controller/Senior Vice Preside) Option Exercise 6,000 19.75 118,500
2007-02-13 West Alfred P Jr (Chairman and Chief Executive) Sale 100,000 61.77 6,177,125
2007-02-12 West Alfred P Jr (Chairman and Chief Executive) Sale 65,500 61.56 4,032,289
2007-02-09 West Alfred P Jr (Chairman and Chief Executive) Sale 10,000 62.60 625,950
2007-02-08 West Alfred P Jr (Chairman and Chief Executive) Sale 100,000 62.91 6,290,857
2007-02-07 West Alfred P Jr (Chairman and Chief Executive) Sale 42,500 63.11 2,682,090
2007-02-06 Loughlin Edward (Executive Vice President) Sale 36,000 63.36 2,281,005
2007-02-05 Loughlin Edward (Executive Vice President) Sale 24,000 63.04 1,512,960
2007-02-05 Lieb Richard (Director) Sale 5,000 63.10 315,500
2006-12-20 Meyer Stephen (Executive Vice President) Sale 11,000 60.10 661,100
2006-12-20 Meyer Stephen (Executive Vice President) Option Exercise 11,000 7.00 77,000
2006-12-20 Mccarthy Kathryn (Director) Sale 16,300 59.75 973,893
2006-12-20 Mccarthy Kathryn (Director) Option Exercise 30,000 9.50 285,000
2006-12-18 Withrow Wayne (Executive Vice President) Sale 15,000 60.35 905,250
2006-12-18 Withrow Wayne (Executive Vice President) Option Exercise 15,000 7.00 105,000
2006-12-15 Lieb Richard (Director) Sale 5,000 59.71 298,557
2006-12-15 Doran William (Director) Sale 6,500 59.90 389,360
2006-12-12 Ujobai Joseph P (Executive Vice President) Sale 1,500 59.06 88,590
2006-11-21 Ujobai Joseph P (Executive Vice President) Sale 2,500 59.00 147,500
2006-10-23 Dasher Karl (Executive Vice president) Sale 1,932 57.67 111,418
2006-09-28 Ujobai Joseph P (Executive Vice President) Sale 2,500 55.80 139,491
2006-09-15 West Alfred P Jr (Chairman and Chief Executive) Sale 25,000 54.24 1,356,125
2006-09-14 West Alfred P Jr (Chairman and Chief Executive) Sale 40,000 54.25 2,169,866
2006-09-13 West Alfred P Jr (Chairman and Chief Executive) Sale 125,000 54.56 6,819,722
2006-09-11 Romeo Carmen (Executive Vice President) Sale 30,000 51.86 1,555,898
2006-09-07 Crudup Robert (Executive Vice President) Sale 2,000 52.00 104,000
2006-09-06 Crudup Robert (Executive Vice President) Sale 30,000 52.19 1,565,828
2006-08-29 Crudup Robert (Executive Vice President) Sale 14,525 51.06 741,622
2006-08-28 Crudup Robert (Executive Vice President) Sale 15,475 51.02 789,482
2006-08-21 Lieb Richard (Director) Sale 10,000 51.80 517,961
2006-08-21 Heilig Kathy (Controller/Senior Vice Preside) Sale 12,000 52.03 624,360
2006-08-18 Mcgonigle Dennis (Executive Vice President/CFO) Sale 50,000 52.48 2,623,750
2006-08-09 Loughlin Edward (Executive Vice Preseident) Sale 11,000 49.55 545,006
2006-08-03 Meyer Stephen (Executive Vice President) Sale 5,500 48.80 268,400
2006-07-25 Ujobai Joseph P (Executive Vice President) Sale 7,500 46.82 351,150
2006-06-26 Doran William (Director) Sale 5,000 45.12 225,600
2006-06-22 Dasher Karl (Executive Vice president) Sale 10,000 44.45 444,500
2006-06-07 Loughlin Edward (Executive Vice President) Sale 110,000 45.40 4,994,253
2006-06-01 West Alfred P Jr (Chairman and Chief Executive) Sale 115,440 45.54 5,257,426
2006-05-16 Mcgonigle Dennis (Executive Vice President/CFO) Sale 40,000 44.80 1,792,100
2006-05-11 Lieb Richard (Director) Sale 5,000 45.79 228,928
2006-05-04 Guarino Carl (Executive Vice President) Sale 107,000 44.07 4,715,846
2006-04-25 Guarino Carl (Executive Vice President) Option Exercise 90,000 7.00 630,000
2006-04-20 Withrow Wayne (Executive Vice President) Option Exercise 40,000 5.30 212,000
2006-03-22 Lieb Richard (Director) Sale 10,000 40.35 403,500
2006-03-10 Doran William (Director) Sale 5,000 40.25 201,250
2006-03-02 West Alfred P Jr (Chairman and Chief Executive) Sale 11,900 42.25 502,775
2006-03-01 West Alfred P Jr (Chairman and Chief Executive) Sale 29,404 42.26 1,242,466
2006-02-28 West Alfred P Jr (Chairman and Chief Executive) Sale 1,696 42.25 71,656
2006-02-27 West Alfred P Jr (Chairman and Chief Executive) Sale 125,675 42.35 5,322,336
2006-02-24 West Alfred P Jr (Chairman and Chief Executive) Sale 22,825 42.24 964,128
2006-02-17 West Alfred P Jr (Chairman and Chief Executive) Sale 11,800 42.37 499,965
2006-02-10 Smith Thomas W (10% Owner) Sale 11,000 41.80 459,799
2006-02-08 Smith Thomas W (10% Owner) Sale 10,000 42.21 422,100
2006-02-03 Guarino Carl (Executive Vice Presi) Sale 90,000 41.12 3,700,440
2006-02-03 Guarino Carl (Executive Vice Presi) Option Exercise 90,000 3.60 324,000
2005-12-29 Doran William (Director) Sale 400 37.77 15,108
2005-12-15 Prescott Investors Profit Sharing Trust (10% Owner) Sale 35,000 38.60 1,351,000
2005-12-15 Smith Thomas W (10% Owner) Sale 35,000 38.60 1,351,000
2005-11-11 Withrow Wayne (Executive Vice Pres) Sale 10,000 39.80 398,000
2005-11-04 West Alfred P Jr (Chairman and Chief E) Sale 10,200 39.39 401,778
2005-10-25 West Alfred P Jr (Chairman and Chief E) Sale 60,000 37.95 2,277,000
2005-10-24 Lieb Richard (Director) Sale 10,000 37.99 379,900
2005-10-24 West Alfred P Jr (Chairman and Chief E) Sale 238,201 37.94 9,037,584
2005-10-21 West Alfred P Jr (Chairman and Chief E) Sale 86,799 37.79 3,279,422
2005-08-09 Loughlin Edward (Executive Vice Presi) Sale 90,000 38.12 3,431,070
2005-08-05 Lieb Richard (Director) Sale 10,000 38.42 384,250
2005-08-04 Lieb Richard (Director) Sale 5,000 38.42 192,125
2005-07-22 Withrow Wayne (Executive Vice Pres) Sale 6,249 39.62 247,585
2005-06-22 Smith Thomas W (10% Owner) Purchase 364 38.12 13,875
2005-06-16 Smith Thomas W (10% Owner) Purchase 200 38.21 7,642

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 Sei Investments Co (symbol SEIC, CIK number 350894) see the Securities and Exchange Commission (SEC) website.

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