Insider Trading activities of Ceridian Corp /de/ insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Ceridian Corp /de/ since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Ceridian Corp /de/ since year 2005. Table 2 shows the detailed insider transactions of Ceridian Corp /de/ since 2005. The reporting company's ticker symbol is CEN. The reporting company's CIK number is 1124887.
The total value of stock buying since 2005 is $26,347,372.
The total value of stock sales since 2005 is $70,373,193.
The total value of stock option exercises since 2005 is $39,397,136.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Ceridian Corp /de/ (CEN).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2007-05 0 $0 0 $0 4,040 $51,954
2007-04 0 $0 0 $0 4,040 $51,954
2007-02 808,400 $26,347,372 0 $0 12,684 $0
2006-12 0 $0 618,251 $15,956,513 511,823 $8,839,862
2006-11 0 $0 53,872 $1,348,335 53,872 $806,194
2006-09 0 $0 1,357,524 $31,889,973 1,173,637 $17,997,054
2006-08 0 $0 732,213 $17,287,186 528,080 $8,897,372
2006-07 0 $0 80,808 $1,959,270 80,808 $1,323,635
2006-06 0 $0 75,000 $1,849,650 75,000 $1,358,250
2006-05 0 $0 3,290 $82,217 4,040 $70,861
2006-04 0 $0 2 $49 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Ceridian Corp /de/ insiders (CEN)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2007-05-01 Lewis George R (Director) Option Ex 4,040 12.86 51,954
2007-04-17 Lemay Ronald T (Director) Option Ex 4,040 12.86 51,954
2007-02-28 Ackman William A (10% Owner) Buy 808,400 32.59 26,347,372
2007-02-17 Neve Douglas C (Exec VP & CFO) Option Ex 4,430 .00 0
2007-02-17 Strobel Randy W (V.P. & Controller) Option Ex 750 .00 0
2007-02-17 Nelson Gary M (EVP & Secretary) Option Ex 3,164 .00 0
2007-02-17 Krow Gary A (Executive Vice President) Option Ex 4,340 .00 0
2006-12-18 Severson Robert J (Sr. VP, Corporate Technology) Sale 40,000 26.41 1,056,240
2006-12-18 Severson Robert J (Sr. VP, Corporate Technology) Option Ex 40,000 18.61 744,400
2006-12-14 Krow Gary A (Executive Vice President) Sale 54,554 25.95 1,414,502
2006-12-14 Krow Gary A (Executive Vice President) Option Ex 180 18.16 3,268
2006-12-13 Krow Gary A (Executive Vice President) Sale 306,239 25.74 7,883,816
2006-12-13 Krow Gary A (Executive Vice President) Option Ex 306,239 17.08 5,231,174
2006-12-12 Krow Gary A (Executive Vice President) Sale 115,404 25.76 2,973,153
2006-12-12 Krow Gary A (Executive Vice President) Option Ex 115,404 16.94 1,955,520
2006-12-11 Krow Gary A (Executive Vice President) Sale 50,000 25.58 1,279,250
2006-12-11 Krow Gary A (Executive Vice President) Option Ex 50,000 18.11 905,500
2006-11-13 Nelson Gary M (EVP & Secretary) Sale 40,404 25.04 1,011,635
2006-11-13 Nelson Gary M (EVP & Secretary) Option Ex 40,404 14.85 599,999
2006-11-06 Krow Gary A (Executive Vice President) Sale 13,468 25.00 336,700
2006-11-06 Krow Gary A (Executive Vice President) Option Ex 13,468 15.31 206,195
2006-09-27 Turner Ronald L (President & CEO) Sale 6,716 22.88 153,688
2006-09-26 Turner Ronald L (President & CEO) Sale 85,000 22.88 1,944,885
2006-09-26 Turner Ronald L (President & CEO) Option Ex 61,977 14.55 901,765
2006-09-25 Turner Ronald L (President & CEO) Sale 80,000 22.79 1,822,960
2006-09-25 Turner Ronald L (President & CEO) Option Ex 60,000 14.55 873,000
2006-09-22 Turner Ronald L (President & CEO) Sale 70,748 22.79 1,612,417
2006-09-22 Turner Ronald L (President & CEO) Option Ex 48,900 14.55 711,495
2006-09-21 Turner Ronald L (President & CEO) Sale 86,800 23.11 2,005,948
2006-09-21 Turner Ronald L (President & CEO) Option Ex 86,800 14.68 1,273,790
2006-09-20 Turner Ronald L (President & CEO) Sale 80,800 23.07 1,880,055
2006-09-20 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-19 Turner Ronald L (President & CEO) Sale 80,000 23.13 1,850,400
2006-09-19 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-18 Turner Ronald L (President & CEO) Sale 71,600 23.38 1,673,864
2006-09-18 Turner Ronald L (President & CEO) Option Ex 71,600 14.80 1,059,680
2006-09-15 Turner Ronald L (President & CEO) Sale 80,000 23.62 1,895,440
2006-09-15 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-13 Turner Ronald L (President & CEO) Sale 80,000 23.72 1,897,624
2006-09-13 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-12 Turner Ronald L (President & CEO) Sale 80,000 23.78 1,902,560
2006-09-12 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-11 Turner Ronald L (President & CEO) Sale 80,000 23.87 1,909,600
2006-09-11 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-08 Turner Ronald L (President & CEO) Sale 80,000 24.00 1,920,080
2006-09-08 Turner Ronald L (President & CEO) Option Ex 80,000 14.80 1,184,000
2006-09-07 Turner Ronald L (President & CEO) Sale 54,448 23.66 1,288,130
2006-09-07 Turner Ronald L (President & CEO) Option Ex 83,148 17.58 1,461,326
2006-09-06 Turner Ronald L (President & CEO) Sale 80,000 23.61 1,889,120
2006-09-06 Turner Ronald L (President & CEO) Option Ex 80,000 20.35 1,628,000
2006-09-05 Turner Ronald L (President & CEO) Sale 60,212 23.98 1,444,124
2006-09-05 Turner Ronald L (President & CEO) Option Ex 60,212 14.85 894,148
2006-09-01 Turner Ronald L (President & CEO) Sale 61,000 24.19 1,475,468
2006-09-01 Turner Ronald L (President & CEO) Option Ex 61,000 14.85 905,850
2006-08-31 Turner Ronald L (President & CEO) Sale 65,084 23.85 1,552,253
2006-08-31 Turner Ronald L (President & CEO) Option Ex 65,084 15.78 1,027,025
2006-08-30 Turner Ronald L (President & CEO) Sale 50,000 23.99 1,199,300
2006-08-30 Turner Ronald L (President & CEO) Option Ex 50,000 15.78 789,000
2006-08-30 Krow Gary A (Executive Vice President) Sale 13,468 24.17 325,548
2006-08-30 Krow Gary A (Executive Vice President) Option Ex 13,468 18.61 250,639
2006-08-29 Turner Ronald L (President & CEO) Sale 35,000 23.31 815,745
2006-08-29 Turner Ronald L (President & CEO) Option Ex 35,000 15.78 552,300
2006-08-28 Turner Ronald L (President & CEO) Sale 25,000 23.28 581,950
2006-08-28 Turner Ronald L (President & CEO) Option Ex 25,000 15.78 394,500
2006-08-25 Turner Ronald L (President & CEO) Sale 21,172 23.22 491,507
2006-08-25 Turner Ronald L (President & CEO) Option Ex 21,172 19.77 418,570
2006-08-24 Turner Ronald L (President & CEO) Sale 12,700 23.53 298,869
2006-08-24 Turner Ronald L (President & CEO) Option Ex 12,700 19.77 251,079
2006-08-23 Turner Ronald L (President & CEO) Sale 20,000 23.59 471,740
2006-08-23 Turner Ronald L (President & CEO) Option Ex 20,000 19.77 395,400
2006-08-22 Turner Ronald L (President & CEO) Sale 26,797 23.47 628,952
2006-08-21 Turner Ronald L (President & CEO) Sale 20,000 23.27 465,007
2006-08-18 Turner Ronald L (President & CEO) Sale 15,548 23.33 362,797
2006-08-17 Turner Ronald L (President & CEO) Sale 32,340 23.53 758,513
2006-08-16 Turner Ronald L (President & CEO) Sale 35,000 23.46 821,275
2006-08-15 Turner Ronald L (President & CEO) Sale 32,100 23.34 749,342
2006-08-15 Turner Ronald L (President & CEO) Option Ex 32,100 18.11 581,331
2006-08-14 Turner Ronald L (President & CEO) Sale 30,700 23.33 716,138
2006-08-14 Turner Ronald L (President & CEO) Option Ex 30,700 18.11 555,977
2006-08-11 Turner Ronald L (President & CEO) Sale 20,000 23.02 460,500
2006-08-11 Turner Ronald L (President & CEO) Option Ex 20,000 18.11 362,200
2006-08-10 Turner Ronald L (President & CEO) Sale 7,600 23.27 176,852
2006-08-10 Turner Ronald L (President & CEO) Option Ex 7,600 18.11 137,636
2006-08-09 Severson Robert J (Sr. VP, Corporate Technology) Sale 2,121 23.50 49,843
2006-08-09 Severson Robert J (Sr. VP, Corporate Technology) Option Ex 2,121 18.61 39,471
2006-08-09 Turner Ronald L (President & CEO) Sale 12,800 23.52 301,004
2006-08-09 Turner Ronald L (President & CEO) Option Ex 12,800 18.11 231,808
2006-08-07 Severson Robert J (Sr. VP, Corporate Technology) Sale 10,000 23.55 235,500
2006-08-07 Severson Robert J (Sr. VP, Corporate Technology) Option Ex 10,000 18.61 186,100
2006-08-04 Turner Ronald L (President & CEO) Sale 16,800 24.18 406,224
2006-08-04 Turner Ronald L (President & CEO) Option Ex 16,800 18.11 304,248
2006-08-03 Turner Ronald L (President & CEO) Sale 48,800 23.85 1,163,782
2006-08-03 Turner Ronald L (President & CEO) Option Ex 48,800 15.73 767,624
2006-08-03 Nelson Gary M (EVP & Secretary) Sale 46,800 23.78 1,112,763
2006-08-03 Nelson Gary M (EVP & Secretary) Option Ex 46,800 15.78 738,504
2006-08-02 Turner Ronald L (President & CEO) Sale 5,072 23.95 121,474
2006-08-02 Turner Ronald L (President & CEO) Option Ex 5,072 15.73 79,782
2006-08-02 Nelson Gary M (EVP & Secretary) Sale 18,200 24.03 437,418
2006-08-02 Nelson Gary M (EVP & Secretary) Option Ex 18,200 15.78 287,196
2006-08-01 Turner Ronald L (President & CEO) Sale 29,808 23.93 713,365
2006-08-01 Nelson Gary M (EVP & Secretary) Sale 34,663 23.85 826,851
2006-08-01 Nelson Gary M (EVP & Secretary) Option Ex 34,663 15.78 546,982
2006-07-31 Turner Ronald L (President & CEO) Sale 80,808 24.25 1,959,270
2006-07-31 Turner Ronald L (President & CEO) Option Ex 80,808 16.38 1,323,635
2006-06-01 Nelson Gary M (EVP & Secretary) Sale 75,000 24.66 1,849,650
2006-06-01 Nelson Gary M (EVP & Secretary) Option Ex 75,000 18.11 1,358,250
2006-05-23 Lewis George R (Director) Sale 3,290 24.99 82,217
2006-05-04 Lewis George R (Director) Option Ex 4,040 17.54 70,861
2006-04-12 Severson Robert J (Sr. VP, Corporate Technology) Sale 2 24.92 49

Insider trading activities including stock purchases, stock sales, and option exercises of CEN listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Ceridian Corp /de/ (symbol CEN, CIK number 1124887) see the Securities and Exchange Commission (SEC) website.