PDFS

PDF Solutions, Inc. PDFS

Individual Beneficiary

Name of reporting person Citizenship or organization Sole voting power Shared voting power Sole dispositive power Shared dispositive power Amount beneficially owned Percent of class Accepted date
Cowen Prime Advisors LLC Citizenship or Place of Organization 0 0 0 0 0 0 % 07/08/2023
Cowen Prime Advisors LLC Citizenship or Place of Organization 0 0 0 1431404 1431404 4 % 03/02/2023
52-0556948 Maryland 1990 0 1990 0 1990 0 % 14/02/2022
98-0557567 Bermuda 3246613 0 3260297 0 3260297 8.7 % 10/02/2022
The Vanguard Group - 23-1945930 Pennsylvania For 0 24654 2047488 49464 2096952 5.62 % 10/02/2022
Cowen Prime Advisors LLC Citizenship or Place of Organization 0 0 0 1742725 1742725 5 % 09/02/2022
(1) BlackRock, Inc. Delaware 4664047 0 4723594 0 4723594 12.6 % 28/01/2022
52-0556948 Maryland 529394 0 2300783 0 2300783 6.2 % 16/02/2021
30-0447847 Delaware 1123955 0 1196674 0 1196674 3.3 % 12/02/2021
98-0557567 Bermuda 3192280 0 3204770 0 3204770 8.7 % 12/02/2021
The Vanguard Group - 23-1945930 Pennsylvania For 0 64931 2061801 87705 2149506 5.87 % 10/02/2021
(1) BlackRock, Inc. Delaware 4457203 0 4509768 0 4509768 12.3 % 26/01/2021
Advantest America, Inc. Delaware 3306924 0 3306924 0 3306924 9.1 % 06/08/2020
Advantest Corporation Delaware 33069241 0 33069242 0 3306924 9.1 % 06/08/2020
98-0557567 Bermuda 3744313 0 3756400 0 3756400 11.5 % 10/06/2020
Cowen Prime Advisors, a division of Cowen Prime Services LLC Citizenship or Place of Organization 0 0 0 1624378 1624378 5 % 04/06/2020
52-0556948 Maryland 498702 0 2568922 0 2568922 7.9 % 14/02/2020
HALCYON ASSET MANAGEMENT LLC United States 1412276 185035 1412276 185035 0 0 % 14/02/2020
98-0557567 Bermuda 3190079 0 3190079 0 3190079 9.9 % 13/02/2020
The Vanguard Group - 23-1945930 Pennsylvania 31030 2000 1904608 28305 1932913 5.97 % 12/02/2020
(1) BlackRock, Inc. Delaware 4352833 0 4431669 0 4431669 13.7 % 04/02/2020
52-0556948 Maryland 548703 0 2953303 0 2953303 9.1 % 14/02/2019
(. Delaware 1837765 0 1948829 0 1948829 6.04 % 08/02/2019
(1) BlackRock, Inc. Delaware 3990425 0 4061916 0 4061916 12.6 % 31/01/2019
OppenheimerFunds, Inc. Colorado 0 3005359 0 0 3005359 9.31 % 18/01/2019
52-0556948 Maryland 468992 0 3022512 0 3022512 9.4 % 14/02/2018
Cardinal Capital Management, LLC United States 1203683 0 1575049 0 1575049 4.9 % 13/02/2018
FMR LLC Delaware 0 0 2250722 0 2250722 7.045 % 13/02/2018
(1) BlackRock, Inc. Delaware 3480068 0 3541188 0 3541188 11.1 % 19/01/2018
(1) BlackRock, Inc. Delaware 3495862 0 3562960 0 3562960 11.2 % 07/12/2017
Cardinal Capital Management, LLC United States 1402806 0 2162922 0 2162922 6.9 % 13/02/2017
52-0556948 Maryland 366184 0 2557115 0 2557115 8.1 % 07/02/2017
(1) BlackRock, Inc. Delaware 1685350 0 1735638 0 1735638 5.5 % 30/01/2017
(1) BlackRock, Inc. Delaware 1480946 0 1530057 0 1530057 4.9 % 10/03/2016
Cardinal Capital Management, LLC United States 1587195 0 2827714 0 2827714 9 % 12/02/2016
2) Delaware 0 0 0 0 0 0 % 10/02/2016
(1) BlackRock, Inc. Delaware 1523899 0 1575673 0 1575673 5 % 28/01/2016
(1) BlackRock, Inc. Delaware 1510887 0 1562912 0 1562912 4.9 % 09/09/2015
FMR LLC Delaware 460601 0 460601 0 460601 1.464 % 11/05/2015
Edward C. Johnson 3d Delaware 0 0 460601 0 460601 1.464 % 11/05/2015
Abigail P. Johnson Delaware 0 0 460601 0 460601 1.464 % 11/05/2015
Doonbeg Global Management, LLC Delaware 0 0 0 0 0 0 % 17/02/2015
Shannon River Master Fund, L.P. Delaware 0 0 0 0 0 0 % 17/02/2015
Doonbeg Master Fund, L.P. Delaware 0 0 0 0 0 0 % 17/02/2015
Shannon River Fund Management LLC Delaware 0 0 0 0 0 0 % 17/02/2015
Shannon River Capital Management LLC Delaware 0 0 0 0 0 0 % 17/02/2015
Shannon River Global Management, LLC Delaware 0 0 0 0 0 0 % 17/02/2015
Spencer Waxman Delaware 0 0 0 0 0 0 % 17/02/2015
Shannon River Partners LP Delaware 0 0 0 0 0 0 % 17/02/2015
Abigail P. Johnson Delaware 0 0 2050626 0 2050626 6.62 % 13/02/2015
FMR LLC Delaware 461701 0 2050626 0 2050626 6.62 % 13/02/2015
Edward C. Johnson 3d Delaware 0 0 2050626 0 2050626 6.62 % 13/02/2015
2) Delaware 1515923 0 1561573 0 1561573 5 % 11/02/2015
Concept Asset Management, a division of Concept Capital Markets, LLC (“CAM”) Delaware 0 0 0 1525190 1525190 4.92 % 10/02/2015
(1) BlackRock, Inc. Delaware 1722658 0 1786977 0 1786977 5.8 % 02/02/2015
V. PREM WATSA United States 1412276 174224 1412276 174224 29044012 30.7 % 26/01/2015
Concept Asset Management, a division of Concept Capital Markets, LLC (“CAM”) Citizenship or Place of Organization 0 0 1678475 0 1678475 5.49 % 15/12/2014
Concept Asset Management, a division of Concept Capital Markets, LLC (“CAM”) Citizenship or Place of Organization 0 0 3686653 0 3686653 12.91 % 15/12/2014
Shannon River Global Management, LLC Delaware 0 773665 0 773665 773665 2.53 % 11/04/2014
Shannon River Capital Management LLC Delaware 0 72545 0 72545 72545 0.24 % 11/04/2014
Shannon River Partners LP Delaware 0 72545 0 72545 72545 0.24 % 11/04/2014
Shannon River Fund Management LLC Delaware 0 72545 0 72545 72545 0.24 % 11/04/2014
Doonbeg Global Management, LLC Delaware 0 852575 0 852575 852575 2.79 % 11/04/2014
Spencer Waxman Delaware 0 1698785 0 1698785 1698785 5.55 % 11/04/2014
Shannon River Master Fund, L.P. Delaware 0 773665 0 773665 773665 2.53 % 11/04/2014
Doonbeg Master Fund, L.P. Delaware 0 852575 0 852575 852575 2.79 % 11/04/2014
Southeastern Asset Management, Inc. United States 1412276 120512 1412276 120512 69835628 4 % 12/02/2014
Andrew N. Wiener United States 1336200 1336200 1336200 1336200 1343600 4.5 % 10/02/2014
Samjo Management, LLC Delaware 1336200 1336200 1336200 1336200 1336200 4.4 % 10/02/2014
Samjo Capital, LLC Delaware 1336200 1336200 1336200 1336200 1336200 4.4 % 10/02/2014
(1) BlackRock, Inc. Delaware 1472172 0 1521287 0 1521287 5 % 30/01/2014
FMR LLC Delaware 541955 0 3038025 0 3038025 10.292 % 10/06/2013
Edward C. Johnson 3d United States of America 0 0 3038025 0 3038025 10.292 % 10/06/2013
Edward C. Johnson 3d United States of America 0 0 2407658 0 2407658 8.277 % 14/02/2013
FMR LLC Delaware 644455 0 2407658 0 2407658 8.277 % 14/02/2013
23-1702840 Delaware 0 0 0 608491 608491 11 % 08/02/2012
13-3435435 Delaware 0 0 0 459039 459039 11 % 08/02/2012
Samjo Management, LLC Delaware 2221000 2221000 2221000 2221000 2221000 7.9 % 06/02/2012
Samjo Capital, LLC Delaware 2221000 2221000 2221000 2221000 2221000 7.9 % 06/02/2012
Andrew N. Wiener United States 2221000 2221000 2221000 2221000 2225700 7.9 % 06/02/2012
52-2343049 New York 0 0 0 0 0 0 % 22/02/2011
52-0556948 MARYLAND 239600 0 2700201 0 2700201 9.8 % 11/02/2011
23-1622210 MARYLAND 1350000 0 0 0 1350000 4.9 % 11/02/2011
13-3435435 Delaware 0 0 0 305500 305500 11 % 11/02/2011
23-1702840 Delaware 0 0 0 2886971 2886971 11 % 11/02/2011
Andrew N. Wiener Delaware 2005000 2005000 2005000 2005000 2007700 7.3 % 10/01/2011
Samjo Management, LLC Delaware 2005000 2005000 2005000 2005000 2005000 7.3 % 10/01/2011
Samjo Capital, LLC Delaware 2005000 2005000 2005000 2005000 2005000 7.3 % 10/01/2011
23-1702840 New York 0 0 0 2487205 2487205 11 % 08/10/2010
13-3435435 New York 0 0 0 319500 319500 11 % 08/10/2010
04-2683227 Massachusetts 0 431347 0 0 568036 2.1 % 10/08/2010
Edward C. Johnson 3d United States of America 0 0 2230000 0 2230000 8.406 % 16/02/2010
FMR LLC United States of America 0 0 2230000 0 2230000 8.406 % 16/02/2010
04-2683227 Massachusetts 0 1431300 0 0 1984800 7.48 % 12/02/2010
04-2683227 Massachusetts 0 1052500 0 0 1731500 6.28 % 17/02/2009
52-0556948 MARYLAND 242100 0 2750101 0 2750101 9.9 % 13/02/2009
04-2683227 Massachusetts 0 1744257 0 0 2793257 10.07 % 10/06/2008
William Blair & Company, L.L.C. Chicago, IL 60606 1706367 0 1706367 0 1706367 6.09 % 12/03/2008
Edward C. Johnson 3d United States of America 0 0 2815641 0 2815641 10.042 % 14/02/2008
FMR LLC Delaware 0 0 2815641 0 2815641 10.042 % 14/02/2008
Edward C. Johnson 3d United States of America 0 0 3572740 0 3572740 13 % 14/02/2007
FMR Corp. Delaware 0 0 3572740 0 3572740 13 % 14/02/2007
52-0556948 MARYLAND 294800 0 3009431 0 3009431 10.9 % 13/02/2007
23-1622210 Maryland 1400000 0 0 0 1400000 5 % 13/02/2007
JOHN KACHIG KIBARIAN : 0 0 0 0 2649421 9.48 % 13/02/2007
KIMON MICHAELS : 0 0 0 0 1655854 5.925 % 13/02/2007
TimesSquare Capital Management, LLC             20-1665304 Citizenship or Place of Organization 1390100 0 1556400 0 1556400 5.7 % 09/02/2007
36-2214610 Chicago, Illinois 60606 3897936 0 3897936 0 3897936 14.18 % 17/01/2007
Edward C. Johnson 3d United States of America 0 0 2954454 0 2954454 10.75 % 11/12/2006
FMR Corp. Delaware 0 0 2954454 0 2954454 10.75 % 11/12/2006
23-1622210 Maryland 1400000 0 0 0 1400000 5.2 % 10/05/2006
52-0556948 MARYLAND 252900 0 2721601 0 2721601 10.2 % 10/05/2006
52-0556948 MARYLAND 192600 0 1948601 0 1948601 7.4 % 14/02/2006
Rana Hawit : 0 0 0 1248657 1248657 4.7 % 14/02/2006
Andre Hawit : 0 0 0 1248657 1248657 4.7 % 14/02/2006
Kimon Michaels : 0 0 0 0 1647653 6.2 % 14/02/2006
JOHN KACHIG KIBARIAN : 0 0 0 0 2751169 10.4 % 14/02/2006
36-2214610 60606 3854852 0 3854852 0 3854852 14.75 % 14/02/2006
(: U.S. Citizen 1570245 0 1410397 0 1570245 6.2 % 14/02/2005
(: U.S. Citizen 1570245 0 1410397 0 1570245 6.2 % 14/02/2005
Robert E Kern Jr. U.S.A. 0 0 0 0 0 0 % 14/02/2005
13-3958232 Delaware 0 0 0 0 0 0 % 14/02/2005
David G. Kern U.S.A. 0 0 0 0 0 0 % 14/02/2005
(: U.S. Citizen 2766170 0 2766170 0 2766170 10.8 % 14/02/2005
(: U.S. Citizen 1670156 0 1670156 0 1670156 6.5 % 14/02/2005
52-0556948 MARYLAND 204700 0 1788300 0 1788300 7 % 11/02/2005
13-3958232 Delaware 1336000 0 1336000 0 1336000 5.2 % 10/05/2004
Robert E Kern Jr. U.S.A. 0 1336000 0 1336000 1336000 5.2 % 10/05/2004
David G. Kern U.S.A. 0 1336000 0 1336000 1336000 5.2 % 10/05/2004
Robert E Kern Jr. U.S.A. 0 2764600 0 2764600 2764600 11.9 % 13/02/2004
13-3958232 Delaware 2764600 0 2764600 0 2764600 11.9 % 13/02/2004
David G. Kern U.S.A. 0 2764600 0 2764600 2764600 11.9 % 13/02/2004
(: U.S. Citizen 2819505 0 2819505 0 2819505 11.1 % 11/02/2004
(: U.S. Citizen 1675785 0 1675785 0 1675785 6.6 % 11/02/2004
(: U.S. Citizen 1226997 0 1226997 0 1226997 4.8 % 11/02/2004
(: U.S. Citizen 1598479 0 1278783 0 1598479 6.3 % 11/02/2004
(: U.S. Citizen 1598479 0 1278783 0 1598479 6.3 % 11/02/2004
(: 77-0148231 DELAWARE 1305443 0 1305443 0 1305443 5.6 % 05/02/2004
13-3958232 Delaware 2515500 0 2515500 0 2515500 10.9 % 11/06/2003
David G. Kern U.S.A. 0 2515500 0 2515500 2515500 10.9 % 11/06/2003
Robert E Kern Jr. U.S.A. 0 2515500 0 2515500 2515500 10.9 % 11/06/2003
INC. DELAWARE 1305443 0 1305443 0 1305443 11 % 28/03/2003
David G. Kern U.S.A. 0 1461800 0 1461800 1461800 6.3 % 14/02/2003
Robert E Kern Jr. U.S.A. 0 1461800 0 1461800 1461800 6.3 % 14/02/2003
13-3958232 Delaware 1461800 0 1461800 0 1461800 6.3 % 14/02/2003
Philip M. Young U.S. Citizen 49980 65626 49980 623125 673105 2.9 % 14/02/2003
Steven M. Krausz U.S. Citizen 10953 65626 10953 623125 634078 2.8 % 14/02/2003
Second Ventures II, L.P. ("SV II") Cayman Islands 65626 0 65626 0 65626 0.3 % 14/02/2003
U.S. Venture Partners IV, L.P. ("USVP IV") Delaware 538750 0 538750 0 538750 2.3 % 14/02/2003
Irwin Federman U.S. Citizen 46801 65626 46801 623125 669926 2.9 % 14/02/2003
William K. Bowes, Jr. U.S. Citizen 42747 65626 42747 623125 665872 2.9 % 14/02/2003
Presidio Management Group IV, L.P. Delaware 623125 0 65626 0 623125 2.7 % 14/02/2003
USVP Entrepreneur Partners II, L.P. ("UEP II") Delaware 18749 0 18749 0 18749 0.1 % 14/02/2003
(: U.S. Citizen 1281762 0 1281762 0 1281762 5.5 % 13/02/2003
SYSTEMS, INC. DELAWARE 1745443 0 1745443 0 1745443 11 % 31/01/2002

Senat trading

Bureau Date de la transaction Date de réception Type Amount Commentaire

Senat Divulgation

Représentant Date de la transaction Date de divulgation Type Amount District