Home/Insiders/ZEILSTRA DAVID C
ZD
SEC Insider//CIK 0001243746

ZEILSTRA DAVID C

CIK 00012437461 companyDOWNERS GROVE, IL

Transactions

50

Companies

1

Filings

13

CIK

0001243746

Recent Transactions

50 trades
  • Tax Payment

    Class A Common Stock

    2015-01-02$37.31/sh3,41289,616 total
  • Gift

    Class A Common Stock

    2014-01-302,00094,722 total
  • Tax Payment

    Class A Common Stock

    2014-01-02$39.33/sh3,31196,722 total
  • Award

    Class A Common Stock

    2014-01-02+12,000100,033 total
  • Tax Payment

    Class A Common Stock

    2013-04-20$35.86/sh4488,033 total
  • Gift

    Class A Common Stock

    2013-01-313,00088,077 total
  • Tax Payment

    Class A Common Stock

    2013-01-02$34.35/sh3,19479,077 total
  • Award

    Class A Common Stock

    2013-01-02+12,00091,077 total
  • Gift

    Class A Common Stock

    2012-04-242,00082,271 total
  • Tax Payment

    Class A Common Stock

    2012-04-20$35.63/sh4384,271 total
  • Tax Payment

    Class A Common Stock

    2012-01-02$32.43/sh2,34572,314 total
  • Award

    Class A Common Stock

    2012-01-02+12,00084,314 total
  • Gift

    Class A Common Stock

    2011-04-261,00074,659 total
  • Sale

    Class A Common Stock

    2011-04-26$39.58/sh6,51075,659 total
  • Award

    Class A Common Stock

    2011-04-20+66682,169 total
  • Tax Payment

    Class A Common Stock

    2011-01-02$35.14/sh1,69973,172 total
  • Award

    Class A Common Stock

    2011-01-02+8,33181,503 total
  • Exercise/Conversion

    Stock Options (Right to Buy)

    2010-11-0415,0000 total
  • Sale

    Class A Common Stock

    2010-11-04$33.70/sh6,35074,871 total
  • Exercise/Conversion

    Class A Common Stock

    2010-11-04$1.30/sh+15,00081,221 total
  • Exercise/Conversion

    Stock Options (Right to Buy)

    2010-08-303,00015,000 total
  • Exercise/Conversion

    Class A Common Stock

    2010-08-30$1.30/sh+3,00066,221 total
  • Exercise/Conversion

    Class A Common Stock

    2010-02-25$1.30/sh+2,00063,221 total
  • Exercise/Conversion

    Stock Options (Right to Buy)

    2010-02-252,00018,000 total
  • Tax Payment

    Class A Common Stock

    2010-01-02$26.79/sh2,31052,890 total
  • Award

    Class A Common Stock

    2010-01-02+8,33161,221 total
  • Tax Payment

    Class A Common Stock

    2009-01-02$27.01/sh1,81746,869 total
  • Award

    Class A Common Stock

    2009-01-02+8,33155,200 total
  • Tax Payment

    Class A Common Stock

    2008-12-21$23.57/sh1,16748,686 total
  • Award

    Class A Common Stock

    2008-01-02+10,00049,853 total
  • Tax Payment

    Class A Common Stock

    2008-01-02$25.77/sh98239,853 total
  • Exercise/Conversion

    Stock Options (Right to Buy)

    2007-02-2020,0000 total
  • Sale

    Class A Common Stock

    2007-02-20$30.99/sh5,00059,481 total
  • Sale

    Class A Common Stock

    2007-02-20$30.80/sh2,50056,981 total
  • Exercise/Conversion

    Class A Common Stock

    2007-02-20$4.69/sh+20,00064,481 total
  • Award

    Class A Common Stock

    2007-01-02+10,00044,481 total
  • Tax Payment

    Class A Common Stock

    2006-12-30$27.55/sh58734,481 total
  • Tax Payment

    Class A Common Stock

    2006-12-21$26.96/sh1,05435,068 total
  • Tax Payment

    Class A Common Stock

    2005-12-30$35.35/sh34523,691 total
  • Sale

    Class A Common Stock

    2005-07-25$29.95/sh3,00024,120 total
  • Sale

    Class A Common Stock

    2005-07-25$30.27/sh30036,720 total
  • Exercise/Conversion

    Class A Common Stock

    2005-07-25$10.53/sh+15,00044,120 total
  • Sale

    Class A Common Stock

    2005-07-25$30.10/sh10034,320 total
  • Exercise/Conversion

    Stock Option (Right to Buy)

    2005-07-2515,0000 total
  • Sale

    Class A Common Stock

    2005-07-25$30.00/sh2,70028,120 total
  • Sale

    Class A Common Stock

    2005-07-25$30.56/sh1,20038,720 total
  • Sale

    Class A Common Stock

    2005-07-25$30.73/sh2,10042,020 total
  • Sale

    Class A Common Stock

    2005-07-25$30.02/sh1,00031,820 total
  • Exercise/Conversion

    Stock Option (Right to Buy)

    2005-07-255,0000 total
  • Sale

    Class A Common Stock

    2005-07-25$30.28/sh50037,020 total