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Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Dr. John K. Kibarian, PhDCEO, President2,512,4747.97%2012-08-28
Dr. Kimon Michaels,PhDCo-VP of Client Services1,466,9594.65%2014-11-27
Thomas F. Cobourn,PhDVP, Yield Analysis773,2572.45%2004-11-22
David A. JosephActing President, PDF Japan264,1740.84%2010-05-15
Mr. Lucio L. LanzaDirector252,9670.8%2014-06-01
P. Steven MelmanVP Investor Relations156,8780.5%2009-05-15
Keith A. JonesN/A64,1340.2%2010-03-15
James JensenVP, Yield Aware - FDC51,2190.16%2009-08-27
Dr. Cornelius Hartgring,PhDVice President, CSS34,7120.11%2015-02-12
Dr. Thomas Caulfield,PhDN/A30,7140.1%2013-09-11

Insider Charts

Insider Transactions

Insider Position Date Buy/Sell Shares Trade Price ($) Cost ($1000) Price Change
Since Trade (%)
Details
Kim KwangHVP of Business Development2015-03-05Sell18$14900268.2-99.89Link
Kim KwangHVP of Business Development2015-02-27Sell100$18.681.9-14.35Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2015-02-23Sell117,401$17.522056.9-8.68Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2015-02-20Sell13,852$33.6465.4-52.38Link
HARTGRING CORNELISVice President, CSS2015-02-12Sell20,854$18.19379.3-12.04Link
HARTGRING CORNELISVice President, CSS2015-02-11Sell100,000$17.511751-8.62Link
LANZA LUCIODirector2014-05-13Sell32,000$19608-15.79Link
Yu Albert YCDirector2014-02-20Sell7,501$22.25166.9-28.09Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2014-02-11Sell2,319$23.1153.6-30.77Link
Yu Albert YCDirector2013-11-29Sell468$23.3510.9-31.48Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-11-08Sell4,292$22.897.9-29.82Link
Yu Albert YCDirector2013-11-04Sell7,971$22.98183.2-30.37Link
HARTGRING CORNELISVice President, CSS2013-09-11Sell21,320$21.84465.6-26.74Link
HARTGRING CORNELISVice President, CSS2013-08-05Sell3,997$21.4385.7-25.34Link
Yu Albert YCDirector2013-08-02Sell5,257$21.05110.7-23.99Link
Yu Albert YCDirector2013-08-01Sell3,490$20.5671.8-22.18Link
HARTGRING CORNELISVice President, CSS2013-08-01Sell3,951$20.9582.8-23.63Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-08-01Sell1,181$20.8324.6-23.19Link
HARTGRING CORNELISVice President, CSS2013-07-30Sell15,028$20.98315.3-23.74Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-06-07Sell1,086$18.2819.9-12.47Link

Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as Conversion of derivative security or Exercise of Options are not included. Insiders are only limited to Officers and/or Directors of the company.

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