Insider Trading activities of Sei Investments Co insiders. , Part 4

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Sei Investments Co since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Sei Investments Co since year 2005. (See page 1 of this report.) 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 $653,387.
The total value of stock sales since 2005 is $556,245,931.
The total value of stock option exercises since 2005 is $85,408,434.



Table 2. Detailed insider stock purchases, sales, and option exercises of Sei Investments Co insiders (SEIC) , Part 4
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2011-12-30 Withrow Wayne (Executive Vice President) Sale 5,000 17.15 85,750
2011-12-23 Doran William (Director) Sale 18,000 17.34 312,210
2011-12-02 West Alfred P Jr (Director) Sale 108,300 16.78 1,817,274
2011-12-01 West Alfred P Jr (Director) Sale 76,700 16.80 1,288,560
2011-11-30 Lieb Richard (Director) Sale 5,000 16.49 82,449
2011-11-29 Lieb Richard (Director) Sale 10,000 15.81 158,100
2011-11-28 Lieb Richard (Director) Sale 10,000 15.47 154,700
2011-11-17 Lieb Richard (Director) Sale 10,000 10.00 100,000
2011-11-16 Lieb Richard (Director) Sale 10,000 16.04 160,400
2011-11-11 Lieb Richard (Director) Sale 10,000 16.16 161,600
2011-09-29 West Alfred P Jr (Director) Sale 8,700 15.98 139,026
2011-09-28 Lieb Richard (Director) Sale 10,000 16.03 160,300
2011-09-28 West Alfred P Jr (Director) Sale 41,300 16.08 664,103
2011-09-26 West Alfred P Jr (Director) Sale 45,000 15.24 685,800
2011-09-01 Lieb Richard (Director) Sale 10,000 17.20 172,000
2011-06-24 West Alfred P Jr (Director) Sale 20,000 21.30 426,000
2011-06-22 West Alfred P Jr (Director) Sale 3,479 22.00 76,538
2011-06-21 West Alfred P Jr (Director) Sale 6,521 22.00 143,462
2011-06-14 West Alfred P Jr (Director) Sale 75,000 22.22 1,666,500
2011-06-03 West Alfred P Jr (Director) Sale 75,000 22.32 1,674,000
2011-03-22 Withrow Wayne (Executive Vice President) Sale 5,577 22.75 126,876
2011-03-14 Withrow Wayne (Executive Vice President) Sale 5,900 22.48 132,632
2011-02-11 Withrow Wayne (Executive Vice President) Sale 10,000 23.30 233,000
2011-02-07 West Alfred P Jr (Director) Sale 60,000 23.51 1,410,600
2011-02-04 West Alfred P Jr (Director) Sale 63,400 23.34 1,479,756
2011-02-03 Lieb Richard (Director) Sale 6,100 23.50 143,350
2011-02-03 West Alfred P Jr (Director) Sale 26,600 23.32 620,312
2011-02-01 Lieb Richard (Director) Sale 18,900 23.50 444,150
2010-12-28 Mcgonigle Dennis (Executive Vice President) Sale 25,000 23.89 597,250
2010-12-22 Ujobai Joseph P (Executive Vice President) Sale 10,000 23.94 239,400
2010-12-22 Ujobai Joseph P (Executive Vice President) Option Ex 10,000 14.71 147,100
2010-12-21 Doran William (Director) Sale 4,000 24.10 96,400
2010-12-20 Doran William (Director) Sale 11,000 24.10 265,100
2010-12-13 Lieb Richard (Director) Sale 10,000 24.02 240,200
2010-12-07 Romeo Carmen (Director) Sale 10,000 24.00 240,000
2010-12-03 Lieb Richard (Director) Sale 10,000 23.63 236,300
2010-11-05 Romeo Carmen (Director) Sale 10,000 23.20 232,000
2010-11-02 Romeo Carmen (Director) Sale 10,000 22.50 225,000
2010-11-01 Withrow Wayne (Executive Vice President) Sale 2,000 22.43 44,860
2010-11-01 Romeo Carmen (Director) Sale 10,000 22.30 223,000
2010-10-28 Romeo Carmen (Director) Sale 20,000 22.20 444,000
2010-10-27 West Alfred P Jr (Director) Sale 16,900 22.05 372,645
2010-10-26 West Alfred P Jr (Director) Sale 93,000 22.04 2,049,720
2010-10-25 West Alfred P Jr (Director) Sale 50,000 21.92 1,096,000
2010-10-22 Romeo Carmen (Director) Sale 10,000 21.95 219,500
2010-09-30 Withrow Wayne (Executive Vice President) Sale 3,000 20.80 62,400
2010-09-30 Romeo Carmen (Director) Sale 10,000 20.51 205,100
2010-09-30 Lieb Richard (Director) Sale 25,000 20.63 515,750
2010-09-30 Doran William (Director) Sale 17,000 20.83 354,110
2010-09-20 Blumenstein Sarah (Director) Sale 12,000 20.26 243,120
2010-09-20 Blumenstein Sarah (Director) Option Ex 12,000 14.74 176,940
2010-09-10 West Alfred P Jr (Director) Sale 63,800 19.18 1,223,684
2010-09-09 West Alfred P Jr (Director) Sale 16,200 19.17 310,554
2010-08-09 Romeo Carmen (Director) Sale 25,000 20.50 512,500
2010-08-09 Lieb Richard (Director) Sale 25,000 20.14 503,500
2010-07-27 Romeo Carmen (Director) Sale 25,000 20.06 501,499
2010-06-30 Lieb Richard (Director) Sale 20,000 20.63 412,600
2010-06-21 Mcgonigle Dennis (Executive Vice President/CFO) Sale 35,000 21.60 756,000
2010-06-17 West Alfred P Jr (Director) Sale 45,000 21.65 974,249
2010-06-16 West Alfred P Jr (Director) Sale 100,000 21.79 2,179,000
2010-05-03 Lieb Richard (Director) Sale 20,000 22.55 451,000
2010-03-23 Romeo Carmen (Director) Sale 5,000 21.70 108,500
2010-03-22 Withrow Wayne (Executive Vice President) Sale 10,000 21.05 210,500
2010-03-19 Barr Kevin (Executive President) Sale 60,000 21.08 1,264,800
2010-03-19 Barr Kevin (Executive President) Option Ex 60,000 21.99 1,319,400
2010-03-11 Romeo Carmen (Director) Sale 10,000 19.60 196,000
2010-03-10 Romeo Carmen (Director) Sale 10,000 19.40 194,000
2009-12-30 Doran William (Director) Sale 6,000 1,775.00 10,650,000
2009-12-17 Withrow Wayne (Executive Vice President) Sale 8,000 17.81 142,480
2009-12-17 Withrow Wayne (Executive Vice President) Option Ex 13,000 9.88 128,440
2009-12-16 Withrow Wayne (Executive Vice President) Sale 5,254 18.00 94,572
2009-12-15 Meyer Stephen (Executive Vice President) Sale 16,000 17.99 287,840
2009-12-15 Meyer Stephen (Executive Vice President) Option Ex 16,000 9.88 158,080
2009-12-15 Withrow Wayne (Executive Vice President) Sale 2,600 17.81 46,306
2009-12-15 Withrow Wayne (Executive Vice President) Option Ex 5,000 9.88 49,400
2009-12-14 Withrow Wayne (Executive Vice President) Sale 9,600 17.73 170,217
2009-12-14 Withrow Wayne (Executive Vice President) Option Ex 10,000 9.88 98,800
2009-12-14 Doran William (Director) Option Ex 12,000 9.88 118,560
2009-11-24 Porter Henry (Director) Option Ex 12,000 9.88 118,560
2009-11-12 Lieb Richard (Director) Sale 20,000 18.05 361,000
2009-11-06 Lieb Richard (Director) Sale 30,000 18.00 540,150
2009-10-27 Loughlin Edward (Executive Vice President) Option Ex 30,000 9.88 296,400
2009-10-27 West Alfred P Jr (Director) Sale 40,000 17.93 717,158
2009-10-23 West Alfred P Jr (Director) Sale 20,000 18.30 365,900
2009-09-29 Withrow Wayne (Executive Vice President) Sale 10,000 19.91 199,050
2009-09-29 Lieb Richard (Director) Sale 10,000 19.80 197,950
2009-09-28 Meyer Stephen (Executive Vice President) Sale 12,000 19.78 237,360
2009-09-28 Meyer Stephen (Executive Vice President) Option Ex 12,000 9.88 118,560
2009-09-28 Withrow Wayne (Executive Vice President) Sale 10,000 19.75 197,550
2009-09-28 Romeo Carmen (Director) Sale 20,000 19.80 396,000
2009-09-23 Romeo Carmen (Director) Sale 20,000 19.70 394,000
2009-09-21 Ujobai Joseph P (Executive Vice President) Sale 24,000 19.53 468,720
2009-09-21 Ujobai Joseph P (Executive Vice President) Option Ex 24,000 9.88 237,120
2009-09-21 Romeo Carmen (Director) Sale 40,000 19.50 780,000
2009-09-16 Mcgonigle Dennis (Executive Vice President/CFO) Sale 15,000 18.82 282,300
2009-09-16 Mcgonigle Dennis (Executive Vice President/CFO) Option Ex 15,000 9.88 148,200
2009-09-15 Lieb Richard (Director) Sale 10,000 18.72 187,220
2009-09-15 Mcgonigle Dennis (Executive Vice President/CFO) Sale 40,000 18.70 747,800
2009-09-15 Mcgonigle Dennis (Executive Vice President/CFO) Option Ex 45,000 9.88 444,600
2009-08-12 Withrow Wayne (Executive Vice President) Sale 10,000 19.35 193,500
2009-08-12 Withrow Wayne (Executive Vice President) Option Ex 15,000 9.88 148,200
2009-08-11 Lieb Richard (Director) Sale 10,000 19.16 191,580
2009-08-07 Withrow Wayne (Executive Vice President) Sale 11,248 19.21 216,107
2009-08-07 Withrow Wayne (Executive Vice President) Option Ex 10,000 9.88 98,800
2009-08-07 Doran William (Director) Sale 1,500 19.12 28,680
2009-07-29 Lieb Richard (Director) Option Ex 4,000 19.28 77,120
2009-06-26 Doran William (Director) Sale 10,000 17.85 178,500
2009-06-25 Ujobai Joseph P (Executive Vice President) Sale 12,000 17.53 210,360
2009-06-25 Ujobai Joseph P (Executive Vice President) Option Ex 12,000 9.88 118,560
2009-06-24 West Alfred P Jr (Director) Sale 90,000 17.55 1,579,050
2009-06-23 West Alfred P Jr (Director) Sale 11,688 17.55 205,124
2009-06-19 Lieb Richard (Director) Sale 12,000 17.59 211,140
2009-06-19 West Alfred P Jr (Director) Sale 213,312 17.63 3,761,330
2009-06-18 West Alfred P Jr (Director) Sale 100,000 17.59 1,759,000
2009-06-12 West Alfred P Jr (Director) Sale 10,980 18.25 200,439
2009-06-10 Meyer Stephen (Executive Vice President) Sale 20,000 18.03 360,600
2009-06-10 Meyer Stephen (Executive Vice President) Option Ex 20,000 9.88 197,600
2009-06-10 Withrow Wayne (Executive Vice President) Sale 10,877 18.00 195,786
2009-06-02 Mccarthy Kathryn (Director) Sale 9,400 16.42 154,348
2009-06-02 Mccarthy Kathryn (Director) Option Ex 12,000 9.88 118,560
2009-05-19 Lieb Richard (Director) Sale 5,000 15.44 77,200
2009-05-08 Withrow Wayne (Executive Vice President) Sale 10,000 15.56 155,650
2009-05-08 West Alfred P Jr (Director) Sale 128,000 15.27 1,954,944
2009-05-07 West Alfred P Jr (Director) Sale 200,000 15.20 3,020,760
2009-04-28 Lieb Richard (Director) Sale 10,000 13.91 139,060
2009-04-08 West Alfred P Jr (Director) Sale 7,000 15.27 106,890
2009-03-12 Lieb Richard (Director) Sale 20,000 10.61 212,200
2009-03-09 Doran William (Director) Sale 25,000 9.23 230,750
2009-03-09 Klauder N Jeffrey (Executive Vice President/GC) Buy 2,000 9.35 18,700
2009-03-09 Mcgonigle Dennis (Executive Vice President/CFO) Buy 10,000 9.40 94,000
2009-03-02 Lieb Richard (Director) Sale 10,000 11.37 113,680
2009-02-24 Loughlin Edward (Executive Vice President) Sale 414,836 12.03 4,990,477
2009-02-23 Loughlin Edward (Executive Vice President) Sale 209,839 12.02 2,521,215
2009-02-18 Lieb Richard (Director) Sale 20,000 12.84 256,720
2009-02-17 Lieb Richard (Director) Sale 10,000 13.17 131,680
2008-12-31 Meyer Stephen (Executive Vice President) Sale 10,000 15.40 154,050
2008-12-26 Lieb Richard (Director) Sale 20,000 14.55 290,920
2008-12-19 Ujobai Joseph P (Executive Vice President) Sale 12,000 16.00 192,000
2008-12-19 Ujobai Joseph P (Executive Vice President) Option Ex 12,000 9.88 118,560
2008-12-15 Meyer Stephen (Executive Vice President) Option Ex 13,000 7.48 97,240
2008-12-08 Withrow Wayne (Executive Vice President) Sale 20,000 15.20 304,020
2008-12-08 Doran William (Director) Sale 20,000 15.12 302,500
2008-12-05 Meyer Stephen (Executive Vice President) Sale 15,000 14.25 213,750
2008-12-05 Meyer Stephen (Executive Vice President) Option Ex 15,000 7.48 112,200
2008-12-05 Withrow Wayne (Executive Vice President) Sale 10,000 14.50 145,000
2008-12-02 Lieb Richard (Director) Sale 25,000 13.91 345,936
2008-12-01 Withrow Wayne (Executive Vice President) Option Ex 20,000 7.48 149,600
2008-11-26 Withrow Wayne (Executive Vice President) Sale 20,000 15.04 300,740
2008-11-26 West Alfred P Jr (Director) Sale 299,210 14.74 4,376,333
2008-11-25 Crudup Robert (Executive Vice President) Sale 15,000 14.02 210,255

Insider trading activities including stock purchases, stock sales, and option exercises of SEIC 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.