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Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Dr. John K. Kibarian, PhDCEO, President2,512,4748.11%2012-08-28
Dr. Kimon Michaels,PhDCo-VP of Client Services1,466,9594.74%2014-11-27
Thomas F. Cobourn,PhDVP, Yield Analysis773,2572.5%2004-11-22
David A. JosephActing President, PDF Japan264,1740.85%2010-05-15
Mr. Lucio L. LanzaDirector252,9670.82%2014-06-01
P. Steven MelmanVP Investor Relations156,8780.51%2009-05-15
Keith A. JonesN/A64,1340.21%2010-03-15
James JensenVP, Yield Aware - FDC51,2190.17%2009-08-27
Dr. Cornelius Hartgring,PhDVice President, CSS33,6940.11%2014-12-01
Dr. Thomas Caulfield,PhDN/A30,7140.1%2013-09-11

Insider Charts

Insider Transactions

Insider Position Date Buy/Sell Shares Shares Owned Following This (Direct & Indirect) Trade Price ($) Cost ($1000) Price Change
Since Trade (%)
Details
LANZA LUCIODirector2014-05-13Sell32,000360,249$19608-11.58Link
Yu Albert YCDirector2014-02-20Sell7,5018,913$22.25166.9-24.49Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2014-02-11Sell2,3197,556$23.1153.6-27.3Link
Yu Albert YCDirector2013-11-29Sell4688,913$23.3510.9-28.05Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-11-08Sell4,2927,556$22.897.9-26.32Link
Yu Albert YCDirector2013-11-04Sell7,9719,381$22.98183.2-26.89Link
HARTGRING CORNELISVice President, CSS2013-09-11Sell21,32025,626$21.84465.6-23.08Link
HARTGRING CORNELISVice President, CSS2013-08-05Sell3,99725,626$21.4385.7-21.61Link
Yu Albert YCDirector2013-08-02Sell5,25712,194$21.05110.7-20.19Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-08-01Sell1,18112,175$20.8324.6-19.35Link
HARTGRING CORNELISVice President, CSS2013-08-01Sell3,95125,626$20.9582.8-19.81Link
Yu Albert YCDirector2013-08-01Sell3,49017,451$20.5671.8-18.29Link
HARTGRING CORNELISVice President, CSS2013-07-30Sell15,02826,870$20.98315.3-19.92Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-06-07Sell1,08612,175$18.2819.9-8.1Link
Yu Albert YCDirector2013-05-30Sell2,31320,941$18.542.8-9.19Link
Yu Albert YCDirector2013-05-28Sell46915,880$18.38.6-8.2Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-04-30Sell2,6880$17.0545.8-1.47Link
WALKER GREGORY CCFO, VP Finance
(Click for the stocks that their CFOs have bought)
2013-04-30Sell2,6880$17.0545.8-1.47Link
HARTGRING CORNELISVice President, CSS2013-03-14Sell5,00023,434$16.381.53.07Link
HARTGRING CORNELISVice President, CSS2013-03-14Sell10,46823,434$16.2169.63.7Link

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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